Emerson ROSEMOUNT NGA2000 HFID Instruction manual

Instruction Manual
90002929
01/2007
Instruction Manual
NGA 2000 Hardware Manual for
MLT or CAT 200 Analyzer and
MLT or CAT 200 Analyzer Module (combined with
NGA 2000 Platform, MLT, CAT 200 or TFID Analyzer)
10th Edition 01/2007
www.EmersonProcess.com
NGA 2000 MLT Hardware
Instruction Manual
90002929
07/2006
ESSENTIAL INSTRUCTIONS
READ THIS PAGE BEFORE PROCEEDING!
Emerson Process Management (Rosemount Analytical) designs, manufactures and tests
its products to meet many national and international standards. Because these instruments
are sophisticated technical products, you MUST properly install, use, and maintain
them to ensure they continue to operate within their normal specifications. The following
instructions MUST be adhered to and integrated into your safety program when installing,
using and maintaining Emerson Process Management (Rosemount Analytical) products.
Failure to follow the proper instructions may cause any one of the following situations to
occur: Loss of life; personal injury; property damage; damage to this instrument; and warranty
invalidation.
• Read all instructions prior to installing, operating, and servicing the product.
• If you do not understand any of the instructions, contact your Emerson Process
Management (Rosemount Analytical) representative for clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation, and
maintenance of the product.
• Install your equipment as specified in the Installation Instructions of the appropriate
Instruction Manual and per applicable local and national codes. Connect all products
to the proper electrical and pressure sources.
• To ensure proper performance, use qualified personnel to install, operate, update, program,
and maintain the product.
• When replacement parts are required, ensure that qualified people use replacement parts
specified by Emerson Process Management (Rosemount Analytical). Unauthorized parts
and procedures can affect the product’s performance, place the safe operation of your
process at risk, and VOID YOUR WARRANTY. Look-alike substitutions may result in fire,
electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protective covers are in place, except
when maintenance is being performed by qualified persons, to prevent electrical
shock and personal injury.
The information contained in this document is subject to change without notice. Misprints
reserved.
1st Edition 02/1997
5th Edition 07/1999
2nd Edition 03/1997
6th Edition 10/1999
9th Edition 07/2006
10th Edition 01/2007
©
1997-2006 by Emerson Process Management
Emerson Process Management
GmbH & Co. OHG
Industriestrasse 1
D-63594 Hasselroth
Germany
T +49 (0) 6055 884-0
F +49 (0) 6055 884-209
Internet: www.EmersonProcess.com
3rd Edition 09/1997
7th Edition 04/2003
4th Edition 04/1998
8th Edition 08/2004
Instruction Manual
NGA 2000 MLT Hardware
90002929
01/2007
CONTENTS
Table of Contents
PREAMBEL .................................................................................... S - 1
DEFINITIONS.................................................................................. S - 1
SAFETY INSTRUCTIONS ............................................................. S - 2
Operating and maintaining this apparatus................................... S - 3
Intended use statement ................................................................. S - 4
Safety summary .............................................................................. S - 4
Authorized personnel..................................................................... S - 4
Gases and Gas Conditioning (Sample Handling) ........................ S - 6
Power Supply .................................................................................. S - 7
Instruments with External Power Supply Unit ................................... S - 7
Instruments with Internal Power Supply Unit .................................... S - 7
General operating instructions ..................................................... S - 9
Additional hints for UV measurement ........................................ S - 10
Magnetically Operated Front Panel ............................................ S - 11
Electrostatic Discharge................................................................ S - 12
PREFACE........................................................................................ P - 1
a) Analyzer versions ......................................................................... P - 1
Standard General Purpose Applications ........................................ P - 1
b) Analyzer versions
Installation in Hazardous Areas ..................................................... P - 2
c) Analyzer System Architecture ....................................................... P - 4
DESCRIPTION
1.
1.1
1.2
1.3
1.3.1
1.3.2
1.3.2.1
1.3.2.2
1.3.2.3
Technical Description .................................................................... 1 - 1
Standard General Purpose Applications .......................................... 1 - 1
Installation in Hazardous Areas ........................................................ 1 - 1
Operating Front Panel ...................................................................... 1 - 2
Standard Version ........................................................................... 1 - 2
Magnetically Operated Touch Panel .............................................. 1 - 3
Magnetic Touch Panel Elements.................................................. 1 - 3
Accessories .................................................................................. 1 - 4
Operating the Touch Panel .......................................................... 1 - 4
Emerson Process Management GmbH & Co. OHG
I
NGA 2000 MLT Hardware
Instruction Manual
CONTENTS
90002929
01/2007
1.4
1.4.1
1.4.2
1.4.3
1.5
1.6
1.6.1
1.6.2
1.7
1.8
1.9
1.9.1
1.9.2
1.9.3
1.10
1.10.1
1.10.2
1.10.3
1.10.4
1.10.5
1.10.6
1.10.7
1.10.8
1.11
1.12
1.13
MLT 1 ............................................................................................... 1 - 6
MLT 1 1/2 19" housing ................................................................... 1 - 6
MLT 1 ULCO ................................................................................ 1 - 11
MLT 1 Housing for platform mounting .......................................... 1 - 13
MLT 2 (Field Housing) .................................................................... 1 - 17
MLT 3 ............................................................................................. 1 - 21
MLT 3 (Gas purity measurement) ................................................. 1 - 23
MLT 3HT (high temperature measurement).......................................1 - 24
MLT 4 ............................................................................................. 1 - 26
CAT 200 ......................................................................................... 1 - 28
Internal Gas Paths .......................................................................... 1 - 32
Gas Path Material ........................................................................ 1 - 32
Gas Path Layout (internal tubing) ................................................. 1 - 33
MLT 3 (gas purity measurement) ................................................. 1 - 34
Printed Circuit Boards .................................................................... 1 - 36
ICB (Inter-Connection Board) ....................................................... 1 - 37
PSV/PIC Combination ................................................................. 1 - 37
DSP (alternitavely to PSV/PIC Combination) .............................. 1 - 37
PIC (Physics Interface Card) ........................................................ 1 - 38
Digital Signal Processing Card (DSP) ......................................... 1 - 39
ACU ............................................................................................. 1 - 40
SIO (Standard Inputs-/Outputs) .................................................... 1 - 41
DIO (Digital In-/Outputs) ............................................................... 1 - 42
Network Termination ...................................................................... 1 - 43
Specifications at the Nameplate Label ........................................... 1 - 44
MLT 2HT (high temperature measurement)...................... ................ 1 - 46
2.
2.1
2.1.1
2.1.2
2.2
2.3
2.3.1
2.3.2
2.3.3
2.4
2.4.1
2.4.2
2.4.3
Measuring Principle ....................................................................... 2 - 1
IR Measurement ............................................................................... 2 - 1
Opto - Pneumatic Measuring Principle........................................... 2 - 3
Interference Filter Correlation (IFC Principle) ................................ 2 - 4
UV Measurement.............................................................................. 2 - 6
Oxygen Measurement ...................................................................... 2 - 7
Paramagnetic Measurement (PO2)................................................. 2 - 7
Electrochemical Measurement (EO2) ........................................... 2 - 11
Trace Electrochemical Measurement (TEO2) ............................... 2 - 13
Thermal Conductivity ..................................................................... 2 - 15
Sensor Design ............................................................................. 2 - 15
Analysis Cell ................................................................................ 2 - 15
Measurement Method .................................................................. 2 - 16
3.
4.
(vacant)
(vacant)
II
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
CONTENTS
OPERATION (START-UP)
5.
5.1
5.1.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.3
5.3.1
5.3.2
5.4
5.4.1
5.4.1.1
5.4.1.2
5.4.2
5.4.2.1
5.4.2.2
5.4.3
5.4.3.1
5.4.4
5.4.5
5.4.5.1
5.4.5.2
5.4.5.3
5.5
5.5.1
5.5.2
5.5.3
5.5.4
Installation .................................................................................... 5 - 1
General ........................................................................................... 5 - 1
Transfer Safety Lock of MLT 1/ULCO or MLT 2 .......................... 5 - 3
Gas Conditioning (Sample Handling) ............................................. 5 - 4
Fine Dust Filter (Option MLT 3) ................................................... 5 - 5
Gas Sampling Pump (Option MLT 3) ........................................... 5 - 5
Pressure Sensor (Option) ............................................................ 5 - 5
Gas Flow ...................................................................................... 5 - 5
Gas Connections ............................................................................ 5 - 6
Internal Solenoid Valve Block (Option for MLT 1/CAT 200) ......... 5 - 8
Purge Gas Connections ............................................................... 5 - 8
Analyzer Specific Instructions......................................................... 5 - 9
MLT 1 ........................................................................................... 5 - 9
MLT 1, platform mounting only ................................................... 5 - 9
MLT 1, external installation and 1/2-19" Housing ....................... 5 - 10
MLT 2 (Field Housing) ................................................................. 5 - 13
Wall Mounting ............................................................................ 5 - 13
Electrical Connections ................................................................ 5 - 15
a) Mains Supply ......................................................................... 5 - 16
b) optional Data Lines ................................................................ 5 - 16
c) Cable Gland Assembly Instruction for Shielded Cables ......... 5 - 19
d) Gas Connections ................................................................... 5 - 20
MLT 3 ........................................................................................... 5 - 21
MLT 3 for gas purity measurement ............................................ 5 - 22
a) Instrument with manual 4/2-way-valve ................................... 5 - 22
b) Instrument with solenoid valve block ...................................... 5 - 23
c) Instrument with quick shutoff connector ................................. 5 - 23
MLT 4 ........................................................................................... 5 - 24
CAT 200 ....................................................................................... 5 - 26
Wall Mounting ............................................................................ 5 - 27
Electrical Connections ................................................................ 5 - 28
Gas Connections ........................................................................ 5 - 31
Wiring Signal Terminals.................................................................. 5 - 32
Electrical Connections in General ................................................ 5 - 32
Wiring Inductive Loads................................................................. 5 - 34
Driving Multiple Loads .................................................................. 5 - 35
Driving High Current Loads .......................................................... 5 - 36
Emerson Process Management GmbH & Co. OHG
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NGA 2000 MLT Hardware
Instruction Manual
CONTENTS
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6.
Switching On .................................................................................. 6 - 1
7.
7.1
7.2
7.2.1
7.2.1.1
7.2.1.2
7.3
Measurement / Calibration / Switching Off .................................. 7 - 1
Measurement ................................................................................... 7 - 1
Calibration ........................................................................................ 7 - 2
Test Gases .................................................................................... 7 - 3
Zero Gas ...................................................................................... 7 - 3
Span Gas ..................................................................................... 7 - 3
Switching Off .................................................................................... 7 - 4
8.
9.
(vacant)
TROUBLESHOOTING
10.
10.1
10.2
10.3
10.3.1
10.3.2
10.3.3
10.3.4
10.3.5
10.3.6
10.3.7
10.3.8
10.3.9
10.4
10.5
10.6
10.7
IV
Troubleshooting ........................................................................... 10 - 1
Instrument has no function (LCD display is dark) ........................... 10 - 1
No / Incorrect Measurement Screen ............................................... 10 - 2
Display Messages .......................................................................... 10 - 3
Chopper Fail ................................................................................ 10 - 3
Raw Signal Too High / Low .......................................................... 10 - 3
Detector signal communication failed .......................................... 10 - 4
Light source ................................................................................. 10 - 4
Detector ....................................................................................... 10 - 4
Heater Unit Regulation................................................................. 10 - 5
Temperature Measurement ......................................................... 10 - 5
Invalid Pressure Measurement .................................................... 10 - 5
External Input ............................................................................... 10 - 6
No or incorrect Analog Outputs / Digital I/O's ................................. 10 - 6
Calibration not possible .................................................................. 10 - 7
Fluctuating or erroneous display .................................................... 10 - 8
Response time too long (t90 time) ................................................. 10 - 9
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
CONTENTS
11.
11.1
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.1.6
11.1.6.1
11.1.6.2
11.1.6.3
11.2
11.3
11.3.1
11.3.2
11.3.3
11.3.4
11.3.4.1
11.3.4.2
Test Procedure / Test Points ....................................................... 11 - 1
Signal processing ........................................................................... 11 - 1
Internal Voltage Supply ................................................................ 11 - 2
IR Source ..................................................................................... 11 - 2
Chopper ....................................................................................... 11 - 3
Unamplified Measuring Signal at Detector ................................... 11 - 3
Signal Processing on PCB “PSV” ................................................ 11 - 4
Physical Zero Alignment .............................................................. 11 - 5
IR Measurement ......................................................................... 11 - 5
Paramagnetic Oxygen Measurement ......................................... 11 - 5
Electrochemical Oxygen Measurement (EO2) ........................... 11 - 5
Heating Unit .................................................................................... 11 - 6
Troubleshooting Instructions for PCB DSP01 ................................ 11 - 7
Inspection of LEDs on component side of DSP01 ....................... 11 - 8
Inspection of soldering pads of DSP01 ...................................... 11 - 10
Evaluation .................................................................................. 11 - 11
Appendix .................................................................................... 11 - 12
Description of soldering pad DEF (LB3): .................................. 11 - 12
Definition of LEDs: ................................................................... 11 - 12
12.
12.1
12.1.1
12.1.2
12.2
12.3
12.3.1
12.3.2
12.3.3
12.4
12.4.1
12.4.2
12.5
Removal / Replacement of Components .................................... 12 - 1
Removal / Replacement of PCBs (in preparation) .......................... 12 - 1
Rear Mounting Slots (in preparation) ........................................... 12 - 1
Internal Slots (in preparation) ....................................................... 12 - 1
Removal / Replacement of Operation Front Panel ......................... 12 - 2
Replacement of Buffer Battery on the ACU 02 ............................... 12 - 3
Removal of ACU 02 ..................................................................... 12 - 3
Replacement of Buffer Battery ..................................................... 12 - 4
Installation of ACU 02 .................................................................. 12 - 4
Fuses.............................................................................................. 12 - 5
MLT 2 ........................................................................................... 12 - 5
MLT 1 / 4 ...................................................................................... 12 - 6
Connect/Disconnect UV Source/Power Supply for UV Source ...... 12 - 7
Emerson Process Management GmbH & Co. OHG
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MAINTENANCE ............................................................................. 13 - 1
14.
Leak Testing ................................................................................. 14 - 1
15.
15.1
15.1.1
15.1.1.1
15.1.1.2
15.1.2
15.1.2.1
15.1.2.2
15.2
15.3
15.3.1
15.3.2
15.3.3
15.3.3.1
15.3.3.2
15.4
15.4.1
15.4.2
15.4.3
15.4.3.1
15.4.3.2
15.4.3.3
Opening the Housing ................................................................... 15 - 1
MLT 1 ............................................................................................. 15 - 2
MLT 1 (Platform housing) ............................................................... 15 - 2
Housing Cover ........................................................................... 15 - 2
Front Panel................................................................................. 15 - 3
MLT 1 (1/2 19" housing) .............................................................. 15 - 4
Housing Cover ........................................................................... 15 - 4
Front Panel................................................................................. 15 - 5
MLT 2 (Field Housing) .................................................................... 15 - 6
MLT 3/4 (1/1 19" housing) .............................................................. 15 - 8
Housing Cover ............................................................................. 15 - 8
Front Panel (MLT 4 / MLT 3 standard version) ............................ 15 - 8
Front Panel (MLT 3 gas purity measurement) ............................. 15 - 9
Operation Front Panel ................................................................ 15 - 9
Left Front Panel .......................................................................... 15 - 9
CAT 200 ....................................................................................... 15 - 10
Junction Box .............................................................................. 15 - 12
Dome ......................................................................................... 15 - 13
Magnetically Operated Front Panel ........................................... 15 - 16
Sliding the Analyzer into Position ............................................. 15 - 16
Fixing the Analyzer ................................................................... 15 - 16
Completing the Adjustment ...................................................... 15 - 16
16.
Fine Dust filter (MLT 3 Option) .................................................... 16 - 1
17.
17.1
17.2
17.3
17.3.1
17.3.2
17.3.3
17.4
17.5
Replacement and Cleaning of Photometric Components ........ 17 - 1
Removal of the Photometer Assembly ........................................... 17 - 2
Light Source Replacement (IR) ...................................................... 17 - 3
Cleaning of Analysis Cells and Windows ....................................... 17 - 4
Removal of Analysis Cells ........................................................... 17 - 4
Cleaning ....................................................................................... 17 - 5
Reinstalling of Analysis Cells ....................................................... 17 - 6
Reinstalling of the Photometer Assembly ....................................... 17 - 7
Physical Zeroing ............................................................................. 17 - 8
VI
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
CONTENTS
18.
18.1
18.2
18.3
18.3.1
18.3.2
18.3.3
18.3.4
18.4
Check / Replacement of electrochemical Oxygen Sensor ........ 18 - 1
EO2-Sensor .................................................................................... 18 - 2
Check of the EO2-Sensor ............................................................... 18 - 3
Replacement of the EO2-Sensor .................................................... 18 - 4
Removal of the EO2-Sensor ......................................................... 18 - 4
Replacing the EO2-Sensor ........................................................... 18 - 5
Reinstalling of the EO2-Sensor .................................................... 18 - 5
Basic conditions for the EO2-Sensor ............................................ 18 - 6
TEO2-Sensor .................................................................................. 18 - 7
19.
Cleaning of Housing Outside ...................................................... 19 - 1
TECHNICAL DATA ........................................................................ 20 - 1
20.1
20.2
20.3
20.4
20.4.1
20.4.1.1
20.4.1.2
20.4.1.3
20.4.1.4
20.4.2
20.4.2.1
20.4.2.2
20.4.2.3
20.4.2.4
Housing .......................................................................................... 20 - 1
Options ........................................................................................... 20 - 2
General Specifications ................................................................... 20 - 3
Voltage supply .............................................................................. 20 - 11
Analyzers ...................................................................................... 20 - 11
MLT 1/4 .................................................................................... 20 - 11
MLT 2/3 .................................................................................... 20 - 11
CAT 200 ................................................................................... 20 - 11
Electrical Safety ....................................................................... 20 - 11
Power Supplies .......................................................................... 20 - 12
UPS 01 T (Universal Power Supply) ........................................ 20 - 12
External 5A Power Supply Unit for DIN Rail Installation........... 20 - 14
External 10A Power Supply Unit for DIN Rail Installation......... 20 - 16
Tabletop Power Supply Units ................................................... 20 - 18
Emerson Process Management GmbH & Co. OHG
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NGA 2000 MLT Hardware
Instruction Manual
CONTENTS
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SUPPLEMENT
21.
21.1
21.2
21.3
21.3.1
21.3.2
21.4
21.5
21.6
Pin Assignments ........................................................................ 21 24 V dc Input (MLT 1/4) ................................................................ 21 230/120 V ac Input (MLT 3) .......................................................... 21 Option SIO (Standard I/O) ............................................................ 21 Analog Signal Outputs ............................................................... 21 Relay Outputs / Serial Interfaces ............................................... 21 Option DIO (Digitale I/O) .............................................................. 21 Terminal Assignment of CAT 200 ................................................. 21 CAT 200 Increased Safety Box - Label Schematic ........................ 21 -
22.
Calculation of Water Content from Dew-point to
Vol. -% or g/Nm³ .......................................................................... 22 - 1
VIII
1
1
1
2
2
2
3
4
7
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
NGA 2000 MLT Hardware
CONTENTS
LIST OF FIGURES
LIST OF FIGURES
Fig.
Title
Fig. P-1:
Fig. P-2:
Fig. P-3:
Fig. P-4:
Analyzer Nameplate Label (example) ............................................................................. P - 3
From separate analyzers to analyzer system ................................................................. P - 4
Example of NGA-cabling ................................................................................................. P - 5
Example/possibilities of NGA analyzer system ............................................................... P - 6
Fig. 1-1:
Fig. 1-2:
Fig. 1-3a:
Fig. 1-3b:
Fig. 1-4a:
Fig. 1-4b:
Fig. 1-4c:
Fig. 1-5:
Fig. 1-6:
Fig. 1-7:
Fig. 1-8:
Fig. 1-9:
Fig. 1-10:
Fig. 1-11:
Fig. 1-12:
Fig. 1-13:
Fig. 1-14:
Fig. 1-15:
Fig. 1-16:
Fig. 1-17a:
Fig. 1-17b:
Fig. 1-18a:
Fig. 1-18b:
Fig. 1-19:
Fig. 1-20:
Fig. 1-21:
Fig. 1-22:
Fig. 1-23:
Fig. 1-24:
Fig. 1-25:
Fig. 1-26:
Fig. 1-27:
Fig. 1-28:
Fig. 1-29:
Fig. 1-30a:
Operation front panel, Front view .................................................................................... 1 - 2
Magnetically Operated Touch Panel, Front view ............................................................ 1 - 3
Magnetic actuator ........................................................................................................... 1 - 5
Magnetic actuator, view at magnets ................................................................................ 1 - 5
Symbols showing actuator alignment ............................................................................. 1 - 4
Horizontally aligned, activating F4 .................................................................................. 1 - 5
Vertically aligned, activating F5 ....................................................................................... 1 - 5
Actuator stored when not in use ..................................................................................... 1 - 4
MLT analyzer, Front view ................................................................................................ 1 - 6
MLT 1, Front panel, Rear view ........................................................................................ 1 - 7
MLT 1, Rear panel (standard) ......................................................................................... 1 - 7
MLT 1, Rack/Table-top Housing, Top view (with electrochemical O2 Sensor) ................ 1 - 8
MLT 1, Rack/Table-top Housing, Top viewA(with paramagnetic O2 Sensor) .................. 1 - 9
MLT 1, Rack/Table-top Housing extended, Top view (with paramagnetic O2 Sensor) . 1 - 10
MLT 1 ULCO, Rack/Table-top Housing, Top view ........................................................ 1 - 12
MLT 1 Analyzer module (Platform mounting), Front panel, Front view ......................... 1 - 13
MLT 1, Platform mounting, Top view (with electrochemical O2 Sensor) ....................... 1 - 14
MLT 1, Platform mounting, Top view (with paramagnetical O2 Sensor) ........................ 1 - 15
MLT 1, Platform mounting extended, Top view (with paramagnetic O2 Sensor) ........... 1 - 16
Front view MLT 2 (Standard housing/Standard operation front panel) ......................... 1 - 19
Front view MLT 2 (Dual compartment housing/Standard operation front panel) ........... 1 - 19
MLT 2, Inside view (drawing without front panel) .......................................................... 1 - 20
MLT 2, Photometer sliding carriage, Top view .............................................................. 1 - 20
MLT 3 (standard) (1/1 19" housing), front view ............................................................ 1 - 21
MLT 3 (standard version), Rear view ........................................................................... 1 - 21
MLT 3 (standard version), Top view ............................................................................. 1 - 22
MLT 3 (gas purity measurement), front view ................................................................. 1 - 23
MLT 3 (gas purity measurement), Rear view ................................................................ 1 - 24
MLT 3 (gas purity measurement), Top view .................................................................. 1 - 25
MLT 4 (1/1 19" housing), front view .............................................................................. 1 - 26
MLT 4, Rear view .......................................................................................................... 1 - 26
MLT 4, Rack/Table-top Housing, Top view ................................................................... 1 - 27
CAT 200, Exterior view ................................................................................................. 1 - 30
CAT 200 (Dome and extender housing removed) ........................................................ 1 - 31
MLT 3 (gas purity measurement), gas path layout .................................................................
(3 measuring channels with solenoid valve block option) ............................................. 1 - 34
MLT 3 (gas purity measurement), gas path layout .................................................................
(3 measuring channels with valve block option and quick shuttoff connector option) ... 1 - 35
MLT 3 (gas purity measurement), gas path layout .................................................................
(2 measuring channels with manual 4/2-way-valve option) .......................................... 1 - 35
Cardcage MLT 1/3/4, Top View .................................................................................... 1 - 36
PCB arrangement MLT 2 [Inside view, detail (without front panel)] .............................. 1 - 37
Fig. 1-30b:
Fig. 1-30c:
Fig. 1-31a:
Fig. 1-31b:
Emerson Process Management GmbH & Co. OHG
Page
IX
NGA 2000 MLT Hardware
CONTENTS
LIST OF FIGURES
Instruction Manual
90002929
07/2006
Fig.
Title
Fig. 1-32:
Fig. 1-33:
Fig. 1-34:
Fig. 1-35:
Fig. 1-36:
Fig. 1-37:
Fig. 1-38:
Plug pin assignment PCB PIC ...................................................................................... 1 - 38
Plug pin assignment PCB DSP ..................................................................................... 1 - 39
Function blocks of SIO-PCB ......................................................................................... 1 - 41
SIO-PCB with extension cards ...................................................................................... 1 - 42
RJ 45 network termination connector ........................................................................... 1 - 43
Network termination (examples) ................................................................................... 1 - 43
Analyzer Nameplate Label (example) ........................................................................... 1 - 44
Fig. 2-1:
Fig. 2-2:
Fig. 2-3:
Fig. 2-4:
Fig. 2-5:
Fig. 2-6:
Fig. 2-7:
Fig. 2-8:
Fig. 2-9:
Measuring Principle for NDIR / UV Measurement ........................................................... 2 - 2
Principle Design of Gas Detector .................................................................................... 2 - 3
Absorption Bands of Sample Gases and Transmittance of the .............................................
Interference Filters used ................................................................................................. 2 - 5
Principle Construction of paramagnetic Analysis Cell ..................................................... 2 - 8
Structure of electrochemical Oxygen Sensor ................................................................ 2 - 11
Reaction of galvanic cell ............................................................................................... 2 - 12
Structure of electrochemical Trace Oxygen Sensor ...................................................... 2 - 13
Sensor block (thermal conductivity detector TCD) ........................................................ 2 - 15
Measuring principle Thermal Conductivity Sensor (Wheatstone bridge) ...................... 2 - 16
Fig. 5-1a:
Fig. 5-1c:
Fig. 5-1b:
Fig. 5-2:
Fig. 5-3:
Fig. 5-4:
Fig. 5-5:
Fig. 5-6a:
Fig. 5-6b:
Fig. 5-8:
Fig. 5-9:
Fig. 5-10:
Fig. 5-11:
Fig. 5-12a:
Fig. 5-12b:
Fig. 5-13:
Fig. 5-14:
Fig. 5-15:
Fig. 5-16:
Fig. 5-17:
Fig. 5-18:
Fig. 5-19:
Fig. 5-20:
Fig. 5-21:
Fig. 5-22:
Fig. 5-23:
Fig. 5-24:
Fig. 5-25:
Fig. 5-26:
Fig. 5-27:
Fig. 5-28:
Transfer safety lock MLT-ULCO (housing side view, detail sketch) ................................ 5 - 3
MLT 2, Photometer safety lock ....................................................................................... 5 - 3
MLT 1, Rear panel (holder for safety lock) ...................................................................... 5 - 3
MLT, Bypass installation ................................................................................................. 5 - 7
MLT 1 analysis module (platform mounting), front panel, front view ............................... 5 - 9
MLT 1, standard gas connections ................................................................................. 5 - 11
MLT 1, gas connections with solenoid valve option ...................................................... 5 - 12
Dimensional sketch / Drill drawing MLT 2 Standard version ......................................... 5 - 14
Dimensional sketch / Drill drawing MLT 2 Dual housing version .................................. 5 - 14
MLT 2, Data line connections Inside view from front (detail, without front door) ........... 5 - 17
MLT 2, Connection data lines / mains line (inside view, left side panel) ....................... 5 - 18
Cable Gland Assembly Instruction for Shielded Cables ................................................ 5 - 19
Cable gland sealing plug / Cable gland allen screw sealing plug ................................. 5 - 19
MLT 2, gas connections ................................................................................................ 5 - 20
MLT 2, Gas fittings at analyzer’s bottom side ............................................................... 5 - 20
MLT 3 (standard version), gas connections and voltage supply ................................... 5 - 21
MLT 3 (gas purity measurement), Rear view ................................................................ 5 - 22
Solenoid valve block MLT 3 (gas purity measurement) (side view) .............................. 5 - 23
MLT 3 (gas purity measurement), front view ................................................................. 5 - 23
MLT 4, Voltage supply .................................................................................................. 5 - 24
MLT 4, gas connections ................................................................................................ 5 - 25
Drill drawing CAT 200 [all dimensions in mm (Inch)] ..................................................... 5 - 27
CAT 200, Junction box, interior view ............................................................................. 5 - 30
CAT 200, Analyzer’s bottom view at gas fittings ........................................................... 5 - 30
Shielded Signal Cable, shield connected at both ends ................................................. 5 - 32
Shielded Signal Cable, shield connected at one end .................................................... 5 - 32
Double-shielded Signal Cable, shields connected at both sides ................................... 5 - 33
Suppressor Diode for Inductive Loads .......................................................................... 5 - 34
”Serial” Wiring ............................................................................................................... 5 - 35
Running Supply Lines "Parallel” .................................................................................... 5 - 35
Driving High Current Loads ........................................................................................... 5 - 36
X
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Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
Fig.
NGA 2000 MLT Hardware
CONTENTS
LIST OF FIGURES
Title
Page
Fig. 11-1:
Fig. 11-2:
Fig. 11-3:
Fig. 11-4:
Fig. 11-5:
Fig. 11-6:
Fig. 11-6a:
Fig. 11-6b:
Fig. 11-6c:
Fig. 11-7:
Fig. 11-7a:
Fig. 11-7b:
Fig. 11-8:
Fig. 11-9:
Principle signal processing with PCB "PSV" ................................................................. 11 - 1
PCB "VVS" .................................................................................................................... 11 - 2
PCB "MOP” (partial view) .............................................................................................. 11 - 3
PCB "BHZ” (position of signal LED's / heating transistors) ........................................... 11 - 6
PCB "DSP01” ................................................................................................................ 11 - 7
LEDs on component side of PCB "DSP01” ................................................................... 11 - 8
LEDs “V7” and “V9” (PCB "DSP01”) ............................................................................. 11 - 8
LEDs “V3” and “V4” (PCB "DSP01”) ............................................................................. 11 - 9
LEDs “V12” to “V17”, Jumper “P40” (PCB "DSP01”) .................................................... 11 - 9
Soldering pads on soldering side of PCB "DSP01” ..................................................... 11 - 10
Soldering pad “LB1” and “LB2 (PCB "DSP01”) ........................................................... 11 - 10
Soldering pad “LB18” (PCB "DSP01”) ........................................................................ 11 - 10
Schematic diagram of inspection of PCB "DSP01” ..................................................... 11 - 11
Soldering pad “DEF/LB3” (PCB "DSP01”) .................................................................. 11 - 12
Fig. 12-1:
Fig. 12-2:
Fig. 12-3a:
Fig. 12-3a:
Fig. 12-4a:
Fig. 12-4b:
Controller Board ACU (partial view, component side) ................................................... 12 - 3
Fuses MLT 2 (partial inside view, drawing without front panel) ..................................... 12 - 5
Fuses PCB LEM 01 (component side) .......................................................................... 12 - 6
Fuses PCB LEM 01 (component side) .......................................................................... 12 - 6
Power Supply for UV Source (front view, front panel disassembled) ............................ 12 - 8
UV Source and PCB ESP10 (top view, housing cover disassembled) ......................... 12 - 9
Fig. 14-1:
Leak Testing with an U - Tube - Manometer ................................................................. 14 - 1
Fig. 15-1:
Fig. 15-2:
Fig. 15-3:
Fig. 15-4:
Fig. 15-5:
Fig. 15-6:
Fig. 15-7:
Fig. 15-8:
Fig. 15-9:
Fig. 15-10:
Fig. 15-11:
Fig. 15-12:
Fig. 15-13:
Fig. 15-14:
MLT 1 (Plattform housing) Fastening screws housing cover ........................................ 15 - 2
MLT 1 (Plattform housing) Fastening screws front panel .............................................. 15 - 3
MLT 1 (1/2 19" housing) Fastening screws housing cover ........................................... 15 - 4
MLT 1 (1/2 19" housing) Fastening screws front panel ................................................. 15 - 5
MLT 2 (Field housing) fastener for front panel .............................................................. 15 - 7
MLT 2, photometer carriage slide ................................................................................. 15 - 7
MLT3 (standard version) / MLT 4 (1/1 19" housing) Fastening screws front panel ....... 15 - 8
MLT3 (gas purity measurement) (1/1 19" housing) Fastening screws front panel ........ 15 - 9
Cat 200 Enclosure Assembly ...................................................................................... 15 - 11
Cat 200 Junction box .................................................................................................. 15 - 12
CAT 200 Dome, fixing screws ..................................................................................... 15 - 13
View at analyzer module ............................................................................................. 15 - 14
Plate with detents ........................................................................................................ 15 - 14
CAT 200, Cast Iron housing, Interior View .................................................................. 15 - 15
Fig. 17-1:
Fig. 17-2:
Fig. 17-3:
Fig. 17-4:
Photometer Assembly, example (Top view, detail) ....................................................... 17 - 2
Chopper Housing with IR light sources ......................................................................... 17 - 3
Photometer Assembly (1 mm to 10 mm analysisi cells) ................................................ 17 - 4
Photometer Assembly (30 mm to 200 mm analysisi cells) ............................................ 17 - 4
Fig. 18-1:
Fig. 18-2:
Fig. 18-3:
PCB “OXS”, assembled, horizontal projection .............................................................. 18 - 3
MLT 1, front panel, rear view ........................................................................................ 18 - 4
PCB “OXS”, assembled, horizontal projection .............................................................. 18 - 6
Emerson Process Management GmbH & Co. OHG
XI
NGA 2000 MLT Hardware
CONTENTS
LIST OF FIGURES/LIST OF TABLES
Fig.
Fig. 20Fig. 20Fig. 20Fig. 20Fig. 20Fig. 20-
Title
Instruction Manual
90002929
07/2006
Page
1:
2:
3:
4:
5:
6:
Dimensional sketch MLT 1 [all dimensions in mm] ........................................................ 20 - 6
Dimensional sketch / Drill drawing MLT 2 Standard version ........................................... 20 - 7
Dimensional sketch / Drill drawing MLT 2 Dual housing version ..................................... 20 - 7
Dimensional sketch MLT 2 for Ex Zone 2 in standard housing ....................................... 20 - 8
Dimensional sketch MLT 2 for Ex Zone 1 in standard housing ....................................... 20 - 8
Dimensional sketch MLT 2 for Ex Zones with “Z Purge” (MLT 2-NF) .......................................
or “Continuous purge” in standard housing ................................................................... 20 - 9
Fig. 20- 7: Dimensional sketch MLT 3/4 ......................................................................................... 20 - 9
Fig. 20- 8: Dimensional sketch / Drill drawing CAT 200 ............................................................... 20 - 10
Fig. 20- 9: Dimensional sketch UPS 01 T (Universal Power Supply), table-top version .............. 20 - 13
Fig.20-10a: IEC mains input plug (UPS 01 T) ................................................................................ 20 - 13
Fig. 20-10b: 24 V DC output socket, Pin assignment (UPS 01 T) ................................................... 20 - 13
Fig. 20-11: Power Supply SL5, Dimensions .................................................................................. 20 - 15
Fig. 20-12: Power Supply SL 10, Dimensions ............................................................................... 20 - 17
Fig. 20-13: 10 A Tabletop Power Supply, Dimensions .................................................................. 20 - 18
Fig. 21- 1:
Fig. 21- 2:
Fig. 21- 3:
Fig. 21-4a:
Fig. 21-4b:
Fig. 21- 5:
Pin assignments 24 V dc Input (MLT 1/4) ..................................................................... 21 - 1
Pin assignments 230/120 V ac Input (MLT 3) ............................................................... 21 - 1
Pin assignments Socket Analog Signal Outputs (Option SIO) ...................................... 21 - 2
Pin assignments Socket Relay Outputs / RS 232 Serial Interface (Option SIO) ........... 21 - 2
Pin assignments Socket Relay Outputs / RS 485 Serial Interface (Option SIO) ........... 21 - 2
Pin assignments Socket Digital Inputs/Outputs (Option DIO) ........................................ 21 - 3
Fig. 21- 6:
CAT 200, Junction box, interior view .............................................................................. 21 - 4
LIST OF TABLES
Table
Title
Table P-1:
Possibilities of NGA 2000 MLT I/O combinations ........................................................... P - 7
Table 1-1:
Table 2-1:
Table 2-2:
Table 2-3:
Table 5-1:
Table 11-1:
Table 11-2:
Table 20-1:
Table 20-2:
Table 21-1:
Table 21-2:
Table 21-3:
Table 21-4:
Table 21-5:
Table 21-6:
Table 21-7:
Table 21-8:
Table 22-2:
Possible internal tubings (examples with 3 measuring channels) ................................... 1 - 33
Solvent Resistant Sensor: Approved solvents ................................................................. 2 - 9
Medium affected Materials within Paramagnetic Oxygen Sensor .................................... 2 - 9
Paramagnetic Oxygen Measurement, cross interference by accompanying gases ........ 2 - 10
CAT 200, Assignment of gas fittings ............................................................................. 5 - 30
Definition of LEDs/Default configuration of soldering pads (PCB "DSP01”) .................. 11 - 12
Definition of LEDs/Normal configuration of soldering pads (PCB "DSP01”) .................. 11 - 13
Specifications of MLT .................................................................................................... 20 - 4
Altered NDIR/VIS/UV-Specifications of MLT-ULCO compared to table 1 ...................... 20 - 5
CAT 200 Power Connections Terminal Assignments ..................................................... 21 - 5
CAT 200 Analog Signal Outputs Terminal Assignments (Option SIO) ............................ 21 - 5
CAT 200 Relay Outputs Terminal Assignments (Option SIO) ........................................ 21 - 5
CAT 200 Field Bus Terminal Assignments (Option) ....................................................... 21 - 5
CAT 200 RS 232 / RS 485 Serial Interface Terminal Assignments (Option SIO) ............ 21 - 6
CAT 200 Digital Inputs/Outputs Terminal Assignments (Option DIO) ............................. 21 - 6
CAT 200 Terminal Assignments - Bottom (Lower) Contacts ........................................... 21 - 8
CAT 200 Terminal Assignments - Top (Upper) Contacts ................................................ 21 - 8
Calculation of Water Content from Dew-point to Vol. -% or g/Nm³ .................................. 22 - 1
XII
Page
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
SAFETY INSTRUCTIONS
PREAMBEL
/ DEFINITIONS
Preambel
This instruction manual provides information about MLT and CAT200 series gas analyzers /analyzer
modules concerning subassemblies, functions, procedures, installation, operation and maintenance.
This instruction manual covers several MLT and CAT200 series gas analyzers /analyzer modules
variations and therefore may describe configurations and/or options not part of your specific
analyzer.
Installation and operation of instruments intended to be installed and operated in HAZARDOUS
AREAS is NOT COVERED by this instruction manual, but part of the specific instruction manual
shipped together with such analyzers because of the special requirements for working in hazardous
environments!
Definitions
The following definitions apply to WARNINGS, CAUTIONS and NOTES found throughout this
publication.
Highlights an operation or
maintenance procedure,
practice, condition, statement, etc.
If not strictly observed, could
result in injury, death, or longterm health hazards of
personnel.
Highlights an operation or
maintenance procedure,
practice, condition, statement, etc.
If not strictly observed, could
result in damage to or
destruction of equipment, or
loss of effectiveness.
NOTE
Highlights an essential operating
procedure, condition or statement.
Emerson Process Management GmbH & Co. OHG
S-1
NGA 2000 MLT Hardware
Instruction Manual
SAFETY INSTRUCTIONS
GENERAL
90002929
07/2006
IMPORTANT
SAFETY INSTRUCTIONS
WIRING AND INSTALLATION OF THIS APPARATUS
The following safety instructions apply specifically to all EU member states. They should be
strictly adhered to in order to assure compliance with the Low Voltage Directive. Non-EU
states should also comply with the following unless superseded by local or National
Standards.
1.
Adequate earth connections should be made to all earthing points, internal and external,
where provided.
2.
After installation or troubleshooting, all safety covers and safety grounds must be replaced.
The integrity of all earth terminals must be maintained at all times.
3.
To ensure safe operation of this equipment, connection to the mains supply should only
be made through a circuit breaker which will disconnect all circuits carrying conductors
during a fault situation. The circuit breaker may also include a mechanically operated
isolating switch. Circuit breakers or switches must comply with a recognized standard
such as IEC947. All wiring must conform with any local standards.
4.
Where equipment or covers are marked with the symbol to the right,
hazardous voltages are likely to be present beneath. These covers should
only be removed when power is removed from the equipment — and then
by trained service personnel only.
5.
Where equipment or covers are marked with the symbol to the right, there
is a danger from hot surfaces beneath. These covers should only be
removed by trained service personnel when power is removed from the
equipment. Certain surfaces may remain hot to the touch.
6.
Where equipment or covers are marked with the symbol to the right, refer
to the Instruction Manual for instructions.
7.
Further graphical symbols used in this product:
Elektrostatic discharge (ESD)
Harmful (to Health)!
Explosion Hazard!
Toxic!
Heavy Instrument!
Disconnect from Mains!
All graphical symbols used in this product are from one or more of the following standards:
EN61010-1, IEC417, and ISO3864.
S-2
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
SAFETY INSTRUCTIONS
OPERATING AND MAINTAINING THIS APPARATUS
Operating and maintaining this apparatus
This instrument has left the factory in compliance with all applicable safety regulations.
To maintain this operating condition, the user must strictly follow the instructions and consider
the warnings in this manual or provided on the instrument.
Before switching on the instrument, verify that the electrical supply voltage matches the
instrument´s operating voltage as set in the factory.
Any interruption in the instrument´s ground line, whether inside or outside the instrument, or
removal or interruption of its ground line connection, could result in hazardous operating
conditions. Intentionally interrupting the instrument´s protective ground is strictly prohibited.
Opening cover panels could expose voltage-carrying components. Connectors may also be
under voltage. The instrument must be disconnected from all electrical supplies before
attempting any calibrations, maintenance operations, repairs or component replacements
requiring opening of the instrument. Any calibrations, maintenance operations, or repairs that
need the instrument to be opened while connected to electrical supplies should be subject to
qualified technicians familiar with the hazards involved only!
Use only fuses of the correct type and current ratings as replacements. Using repaired fuses
and short circuiting of fuse holders is prohibited.
Observe all applicable regulations when operating the instrument from an auto-transformer
or variac.
Substances hazardous to health may emerge from the instrument‘s exhaust.
Please pay attention to the safety of your operation personnel. Protective measures must be
taken, if required.
Emerson Process Management GmbH & Co. OHG
S-3
NGA 2000 MLT Hardware
Instruction Manual
SAFETY INSTRUCTIONS
INTENDED USE STATEMENT / SAFETY SUMMARY / AUTHORIZED PERSONNEL
90002929
07/2006
Intended use statement
MLT and CAT200 series gas analyzers/analyzer modules are intended to be used as
analyzers for industrial purposes. They must not be used in medical, diagnostic or life
support applications, and no independent agency certifications or approvals are to be
implied as covering such applications!
Safety summary
If this equipment is used in a manner not specified in these instructions, protective
systems may be impaired.
Authorized personnel
To avoid loss of life, personal injury and damage to this equipment and on-site property,
do not operate or service this instrument before reading and understanding this
instruction manual and receiving appropriate training. Save these instructions.
ELECTRICAL SHOCK HAZARD !
Do not operate without covers secure. Do not open while energized. Installation requires
access to live parts which can cause death or serious injury.
For safety and proper performace this instrument must be connected to a properly
grounded three-wire source of power.
TOXIC GASES !
This unit’s exhaust may contain toxic gases such as sulfur dioxide.
These gases can cause serious injuries.
Aviod inhalation of the exhaust gases at the exhaust fitting.
Connect exhaust outlet to a safe vent. Check vent line and connections for leakage.
Keep all fittings tight to avoid leaks. See section 14 for leak test information.
S-4
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
SAFETY INSTRUCTIONS
EXPLOSION HAZARD !
Do not operate nor install these instruments in hazardous areas without
additional measures!
MLT 2 and CAT 200 -- HEAVY INSTRUMENTS !
The analyzer variations MLT 2 and CAT 200 intended to be wall
mounted and/or outdoor installed weigh up to 35 kg resp. 70 kg, depending
on included options!
Use two person and/or suitable tools for transportation and lifting these
instruments!
Take care to use anchors and bolts specified to be used for the weight of
the units!
Take care the wall or stand the unit is intended to be installed at is solid
and stable to hold the units!
HIGH TEMPERATURES !
While working at photometers and/or thermostated components inside the
analyzers hot components may be accessible!
CAUSTIC !
The electrochemical O2-sensor contains electrolyte which is caustic and
can cause serious burns to skin. Do not ingest contents of sensor !
Tampering with or unauthorized substitution of components may adversely affect the
safety of this instrument. Use only factory approved components for repair.
Because of the danger of introducing additional hazards, do not perform any unauthorized
modification to this instrument!
Emerson Process Management GmbH & Co. OHG
S-5
NGA 2000 MLT Hardware
Instruction Manual
SAFETY INSTRUCTIONS
GASES AND GAS CONDITIONING (SAMPLE HANDLING)
90002929
07/2006
Gases and Gas Conditioning (Sample Handling)
Take care of the safety instructions applicable for the gases (sample
gases and test gases) and for the gas bottles containing these gases!
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
Flammable gases must not supplied without additional protective
measures!
It is prohibited to supply explosive gases!
EXPLOSION HAZARD !
Supplying flammable gases of concentrations above 25 % of lower
explosion limit (LEL) we recommend to utilize one or more of the following
measures:
•
•
•
•
Purging the housing with inert gas
Internal tubing with stainless steel
Flame arrestors at gas input and output fittings
Intrinsically safe paramagnetical or thermal conductivity sensors
Supplying explosive gases is not permitted !
•
S-6
Purge gas must be conditioned:
Take care for purge gas temperature: Purge gas should have the same temperature as
ambient temperature of the analyzer but NOT below 20 °C and above 35 °C! Otherwise
it must be cooled or warmed up before let in into the instrument!
Purge gas should be instrumental / synthetic air (free of oil, no corrosive, toxic or flammable
gas componets) or nitrogen depending on application.
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
SAFETY INSTRUCTIONS
POWER SUPPLY
Power Supply
Verify the mains voltage at site of installation corresponds to the analyzer´s
rated voltage as given on the nameplate label!
Verify the safety instruction given by power supply unit manufacturer !
Instruments with External Power Supply Unit
The mains socket has to be nearby the power supply unit and easily
accessible! Disconnecting from mains requires unplugging the power plug!
To comply with the CE mark requirements use only power supply units of
type UPS 01 T, DP 157, SL5, SL10 (DP 157 for rack installation only) or
equivalent units. Equivalent units must provide SELV output voltages!
Verify proper polarity when connecting DC 24 V operated analyzers !
Instruments with Internal Power Supply Unit
ELECTRICAL SHOCK HAZARD !
These instruments provide a protective earth terminal. To prevent electrical
shock hazards the instrument must be connected to a protective earth.
Therefore the instrument has to be connected to mains by using a three
wire mains cable with earth conductor!
Any interruption of the earth connector inside or outside the instrument or
disconnecting the earth terminal may cause potential electrical shock
hazzard! Intended interruption of protective earth connections is not
permitted!
•
For analyzer module (A) [external installation or platform mounting] it is not allowed to
supply the module from front and rear simultaneously !
For external installation connections on frontside absolutely have to closed with the blind
plate delivered from our factory to be in agreement with the CE conformity.
Emerson Process Management GmbH & Co. OHG
S-7
NGA 2000 MLT Hardware
Instruction Manual
SAFETY INSTRUCTIONS
ADDITIONAL HINTS FOR MLT 2 AND CAT 200
90002929
07/2006
ADDITIONAL HINTS FOR MODELS MLT 2 AND CAT 200
Installation and connecting mains and signal cables are subject to qualified
personnel only taking into account all applicable standards and legislative
requirements!
Failure to follow may cause warranty invalidation, property damage and/or
personal injury or death! Mains and signal cables need to be connected to
internal srew terminals requiring to work at open housing near life parts!
Installation of this instrument is subject to qualified personnel only, familiar
with the resulting potential risks!
These gas analyzer do not provide a mains power switch and are operable
when connected to power.
These gas analyzers do not provide a mains switch! A mains switch or
circuit breaker has to be provided in the building installation. This switch
has to be installed near by analyzer, must be easily operator accessible and
has to be assigned as disconnector for the analyzer.
ADDITIONAL HINTS FOR MODEL MLT 2
Cables for external data processing must be double insulated for mains
voltage when used inside the instrument!
If double insulation is not available signal cables inside the analyzer must
be installed in a way that a distance of at least 5 mm is ensured permanently
(e.g. by utilizing cable ties).
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Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
SAFETY INSTRUCTIONS
GENERAL OPERATING INSTRUCTIONS
General operating instructions
DANGER TO LIFE ! EXPLOSION HAZARD !
Verify all gas lines are connected as described within this manual and tight!
Improper gas connections may cause explosion, serious injury or death!
Exhaust may contain hydrocarbons and other toxic gases, e.g. carbon
monoxide. Carbon monoxide is toxic!
•
Before start-up unscrew transfer safety lock (knurled-head screws) of the MLT 1 + 2
(section 5. of operation manual) !
•
Installation area has to be clean, free from moisture, excessive vibration and frostprotected. Take care to meet the permissible ambient temperatures as given in the technical
data section!
Instruments must not be exposed to direct sunlight, fluorescent lamps nor sources of
heat.For outdoor installation it is recommended to mount the instruments into a cabinet.
At least sheltering against rain is required. Do not cover venting openings and take care
to mount the instrument in a distance to walls not affecting venting.
•
Free flow of air into and out of the MLT (ventilation slits) must not be hindered by
nearby objects or walls !
•
Do not interchange gas inlet and outlet! All gases must be conditioned before supplying!
When supplying corrosive gases ensure that gas path components are not affected!
•
Max. permissible gas pressure: 1,500 hPa, except instruments for gas purity measurement
(see chapter 5.4.3.1), with integrated valve blocks (see page 5-8 and/or paramagnetic
Oxygen sensor (see table page 20-4)!!
•
Exhaust lines must be installed in a descending way, need to be pressureless, frostprotected and in compliance with applicable legislative requirements!
•
When it is necessary to open gas paths seal the analyzer‘s gas fittings by using PVC
caps to avoid pollution of the internal gas path by moisture, dust, etc.
•
To stay in compliance with regulations regarding electromagnetic compatibility it is
recommended to use only shielded cables, as optionally available from Emerson Process
Management or equivalent. Customer has to take care that the shield is connected in
proper way. Shield and signal connector enclosure need to be conductively connected,
submin-d plugs and sockets must be screwed to the analyzer.
•
Using external submin-d-to-terminal adaptor elements (option) affects electromagnetic
compatibility. In this case the customer has to take measures to stay in compliance and
has to declare conformity, when required by legislation (e.g. European EMC Directive).
Emerson Process Management GmbH & Co. OHG
S-9
NGA 2000 MLT Hardware
Instruction Manual
SAFETY INSTRUCTIONS
ADDITIONAL HINTS FOR UV MEASUREMENT
90002929
07/2006
Additional hints for UV measurement
HIGH VOLTAGE !
The optional UV lamp operates with high voltage (Power Supply UVS) !
UV SOURCE !
Ultraviolet light from UV lamp can cause permanent eye damage !
Do not look directly at the ultraviolet source !
TOXIC SUBSTANCE !
The optional UV lamp contains mercury. Lamp breakage could
result in mercury exposure ! Mercury is highly toxic !
If the lamp is broken, avoid any skin contact to mercury and
inhalation of mercury vapors !
S - 10
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
SAFETY INSTRUCTIONS
MAGNETICALLY OPERATED FRONT PANEL
Magnetically Operated Front Panel
DANGER TO LIFE !
Persons with cardiac pacemakers should absolutely avoid magnetic
fields !
Negative effects on persons beyond those described above caused by
magnetic fields are not known. It is presumed that persons showing allergic
reaction on contact with ceramic or metallic material show the same
behavior on contact with magnetic material.
Permanent magnets are surrounded by magnetic fields. These magnetic
fields can disturb and even destroy sensitive electronic measuring devices,
but also mechanical watches, credit cards, etc.
Usually a distance of 0.5 m is enough to avoid damages. All sintered
permanent magnets are hard and brittle. Hitting of sintered permanent
magnets by the magnetic attraction causes splitting into fragments with
many sharp edges. This especially occurs with high energy magnets, and
can also cause skin bruises by high attraction.
High energy magnets made of rare-earth materials have to be stored dry,
otherwise the surfaces would oxidise. Unprotected operation in a humid
environment may cause corrosion. Avoid damaging the protective galvanic
coating.
A storage in a hydrogen atmosphere destroys these magnets.
A demagnetisation is caused when permanent magnet materials have been
exposed in a radioactive radiation for a long time.
For air transportation of magnetic material the IATA instructions have to be
observed:
Magnetic fields are not allowed to penetrate the package, if necessary the
magnets have to be shorted using a metal plate.
Emerson Process Management GmbH & Co. OHG
S - 11
NGA 2000 MLT Hardware
Instruction Manual
SAFETY INSTRUCTIONS
ELECTROSTATIC DISCHARGE
90002929
07/2006
Electrostatic Discharge
The electronic parts of the analyzer can be irreparably damaged if exposed
to electrostatic discharge (ESD).
The instrument is ESD protected when the covers have been secured and
safety precautions observed. When the housing is open, the internal
components are not ESD protected anymore.
Although the electronic parts are reasonable safe to handle, you should be aware of the
following considerations:
Best ESD example is when you walked across a carpet and then touched an electrical grounded
metal doorknob. The tiny spark which has jumped is the result of electrostatic discharge
(ESD).
You prevent ESD by doing the following:
Remove the charge from your body before opening the housing and maintain during work
with opened housing, that no electrostatic charge can be built up.
Ideally you are opening the housing and working at an ESD - protecting workstation.
Here you can wear a wrist trap.
However, if you do not have such a workstation, be sure to do the following procedure exactly:
Discharge the electric charge from your body. Do this by touching a device that is grounded
electrically (any device that has a three - prong plug is grounded electrically when it is plugged
into a power receptacle).
This should be done several times during the operation with opened housing (especially after
leaving the service site because the movement on a low conducting floors or in the air might
cause additional ESDs).
S - 12
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
12/2006
PREFACE
Preface
a)
Analyzer versions - Standard General Purpose Applications
The MLT series of NGA 2000 analyzers offers multi-component, multi-method analysis. Different
measurement methods can be combined in one analyzer.
MLT 1, MLT 2 and MLT 4 (MLT 5) are designed to measure up to 5 gas components while MLT 1
ULCO, MLT 3 and CAT 200 allow up to 4 gas components (including photometer and nonphotometer channels).
For MLT (MLT 1, 2 & CAT 200) with Foundation Fieldbus (FF) a special FF instruction manual
is provided.
NGA 2000 MLT 1 ULCO gas analyzer is specially designed to measure ultra low carbon monoxide.
The analyzer is equipped with a 2nd optical bench including a multi detector assembly (MDA block)
for cross interference compensation in automotive and flue gas applications. Water vapor and
carbon dioxide measurement is used for internal cross interference compensation thus providing
an ultra low CO and CO2 channel as standard. This solution is designed for automotive (Internal
Combustion Engine Emissions, ICEE) and Continuous Emissions Monitoring Systems (CEMS).
An additional COhigh channel is available as option on automotive applications.
For gas purity measurement new quality standards require ultra low CO measurement but not such
high dynamic ranging and cross compensation. Therefore the 2nd bench (MDA) is not used, but
another channel, e.g. ultra low carbon dioxide (ULCO2) can be implemented in MLT 1.
All MLT 2 components are incorporated into a wall-mountable housing with ingress protection code
IP 65 (designed to meet NEMA 4/4X) according to EN 60529. This housing is equipped with
an impact tested front panel according to EN 50014 operated by a magnetically operated touch
panel. The MLT 2 can be purged to remove corrosive or toxic gases with synthetic air or
instrumental air (dry, free of oil, hydrocarbons and corrosive components; 20 to 35 °C purge gas
temperature). If sample gas contains flammable gas components above the lower explosion
limit, the required explosion protection measures (purge/pressurization system) must be
approved by an authorized person (ATEX/CSA-C/US purge system) .
MLT 2 is available with a dual compartment enclosure, too, whereat electronics and photometer/
sensors are installed in two separate housings.
Special high temperature variations of MLT 2 or 3 for physics temperatures up to 120 °C are
optionally available (standard thermostat control: 55 °C; 65 °C as option).
Special versions of MLT 3 are available with suppressed ranges for gas purity measurements
and a corresponding additional manual too (special sample handlingrequirements).
Emerson Process Management GmbH & Co. OHG
P-1
NGA 2000 MLT Hardware
PREFACE
b)
Instruction Manual
90002929
12/2006
Analyzer versions - Installation in Hazardous Areas
Note!
This manual does not deal with special conditions for analyzers in hazardous areas, related to
installation, operation, maintenance etc. For such applications refer to the separate instruction manuals, delivered together with the analyzers.For installation in hazardous areas the
MLT 2 can be equipped with the appropriate pressurization system acc. to the actual required
explosion protection measures.
Solutions acc. to CENELEC (according to former European EN 50016) use combinations of MLT
2 and an appropriate pressurization system being individually certified (see separate manual
about pressurization system and individual certification report - §10 Elex).
In this case a magnetically operated touch panel or an intrinsically safe front panel (combined with
approved PCB EXI 01for Zone 1, option for Zone 2) is implemented and MLT 2 is combined with
a simplified pressurization for European Ex Zone 2 or with an approved pressurization system for
European Ex Zone 1 (see separate instruction manual).
Additionally the MLT 2 may be equipped with intrinsically safe I/O's (see separate instruction
manual )
MLT 2-NF is a special analyzer version of MLT 2 with Z Purge system for North American Class
1 Zone 2 measurements of non-flammable gases in hazardous areas (CSA-C/US type approved
for Zone 2, see separate instruction manual).
EEx p solutions acc. to ATEX (European Directive for Equipment to be used in Explosive
Atmospheres; mandatory since July 1, 2003) use type approved combinations of MLT 2 and
appropriate pressurization systems (see separate ATEX instruction manual about pressurization
system and certification).The separate ATEX manual covers all EExp Ex Zone 1 solutions as well
as solutions for Ex Zone 2 measuring non-flammable gases. Solutions for measuring
flammable gases in Ex Zone 1 or 2 are described in a separate instruction manual.
For installation acc. to ATEX in Ex Zone 1 and 2 the MLT 2 is always equipped with a
magnetically operated touch panel (see separate manual too). Additionally the MLT 2 may be
equipped with intrinsically safe I/O's (see separate instruction manual).
The CAT 200 analyzer or analyzer module is designed to be installed in hazardous areas, too,
It is consisting of a 1/2-19" MLT 1 analyzer (analyzer module) installed into a flameproof Ex d
enclosure with Ex em junction box. This model is CSA-C/US and ATEX approved for
installation in North-American and European hazardous areas (Ex zone 1).
P-2
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
12/2006
PREFACE
All analyzer versions are marked as follows:
MLTx y-CH1 CH2 CH3 CH4 CH5
with
x = analyzer type
1, 2, 3, 4, 5, CAT 200 with
1 = 1/2 19", not thermostatted, external power supply
2 = Field housing, thermostatted, internal power supply
3 = 1/1 19"-housing, thermostatted, internal power supply
4 = 1/1 19"-housing, thermostatted, external power supply
5 = 19", 18 to 21 HU housing, thermostatted, internal power supply
CAT 200 = flameproof enclosure
y = analyzer version
T, M, A, R, TE, ME, AE, RE with
T = table top
M = analyzer module, platform mounting
(net/electr. connections from front side only)
A = analyzer module, external installation or platform mounting
(net/electr. connections from rear side or front side)
R = rack mounting
E = extended housing (MLT 1 only)
CH1...5 = measuring method of the individual (max. 5) measuring channels with
IR
=
measurement at infrared spectral range
UV
=
measurement at ultraviolet spectral range
VIS =
measurement at visual spectral range
paramagnetic oxygen measurement
PO2 =
electrochemical oxygen measurement
EO2 =
TC
=
thermal conductivity measurement
TEO2 =
trace electrochemical oxygen measurement
Model and installed measuring
principles
(here: MLT 4 Rackmounting,
2 x IR, 2 x UV, 1 x PO2)
Serial number
Channel 2:
Gas and measuring range
(here: SO2, 26/260 ppm)
Channel 1:
Gas and measuring range
(here: CO, 60/600 ppm)
Channel 4:
Gas and measuring range
(here: NO2, 25/250 ppm)
Channel 4:
Gas and measuring range
(here: CO, 150/1,500 ppm)
Channel 5:
Gas and measuring range
(here: O2, 5/21 Vol-%)
International approval marks
Fig. P-1: Analyzer Nameplate Label (example)
Emerson Process Management GmbH & Co. OHG
P-3
NGA 2000 MLT Hardware
Instruction Manual
PREFACE
c)
90002929
12/2006
Analyzer System Architecture
The MLT´s flexibility facilitates the most cost-effective system architecture - elegantly accommodating either “stand-alone” or integrated multi-channel analyzer requirements.
The MLT is available both as an “Analyzer Module” or as an “Analyzer”.
The “Analyzer Module” (AM) is a “blind” analysis unit but retains all the advanced MLT design
features. The AM variant is designed for integration as part of a Multiple NGA 2000 analysis system
or special customer developed networks. The MLT AM novel “blind” packaging and network
functionality allows the user to easily exploit the MLT analyser´s advanced expansion capability.
The MLT Analyzers can be designed as single stand-alone analyzers - complete with control
module functionality and front panel display/operator interface - or as an central interface for
multiple Analyzer Modules with a network board.
In MLT analyzer systems this feature eliminates duplication of the display/operator interface. In
addition to the obvious operational benefits, MLT Analyzers offer significant cost and system
packaging advantages not possible with conventional analyser configurations.
This flexible network communication architecture is shown in Fig. P-4.
½ 19" MLT
NGA Network
Analyzer
NGA 2000
NGA Network
ROSEMOUNT
Platform with MLT AM
or
19" MLT Analyzer
ROSEMOUNT
NGA 2000
ROSEMOUNT
NGA 2000
CLD
½ 19" MLT
Analyzer
ROSEMOUNT
FID
NGA 2000
NGA Network
PS
CLD
NGA 2000
Platform with MLT AM
or
19" MLT Analyzer
ROSEMOUNT
CLD
MLT
MLT
CLD
FID
NGA 2000
PS
NGA Network
ROSEMOUNT
NGA Network
FID
NGA Network
PMD
ROSEMOUNT
NGA 2000
PS
Fig. P-2: From separate analyzers to analyzer system
P-4
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
12/2006
PREFACE
The modular erection with a bi-direction network makes possible
❏
Single devices (stand-alone analyzers)
- analyzer modules in a platform (separate manual) including optional
inputs and outputs (e.g. SIO/DIO).
- MLT analyzer including optional inputs and outputs (e.g. SIO/DIO).
❏
The interconnection on simple way of analyzer modules including optional local inputs and
outputs (e.g. SIO/DIO) to analyzer systems
- with platform (separate instruction) including system inputs and outputs (SIO/DIO)
- with MLT analyzer including system inputs and outputs (SIO/DIO)
- with customer own control units
For combination possibilities of NGA 2000 MLT I/O´s look at table P-1, please.
Platform
Analyzer Module
Analyzer Module
AC
DC
Network Cable
Analyzer Module
Network Cable
Power supply
24VDC Cable
24VDC Cable
DC
AC
Fig. P-3: Example of NGA-cabling
Emerson Process Management GmbH & Co. OHG
P-5
NGA 2000 MLT Hardware
Instruction Manual
PREFACE
90002929
12/2006
Local I/O’s via Internal System Bus
DIO
Analyzer Modules (AM’s)
O2
PMD
HC
HFID
NOx
WCLD
NO/NOx
CLD
System I/O’s via Internal System Bus
ppm O2
TO2
HC
FID
HC
TFID
DIO
SIO
DIO
CO/NO/SO2 /
EO2 - MLT
PO 2
MLT
NGA 200 0
Alternatively to Platform
or MLT/TFID Analyzer
Alternatively
SIO
19" Platform/
TFID Analyzer
Field PC
Workstation
ROS EM OUN T
8
Digital
Inputs
24
Digital
Outputs
3
Relay
Outputs
RS 232 /
RS 485
Printer
or PLC
NGA 200 0
Alternatively
MLT 2
Analyzer
½ 19" MLT
Analyzer
RO SE MOUN T
Solenoid
Valves
SIO
NGA
Network
19" MLT 3/4
Analyzer
ROS EM OUN T
DIO
SIO
RO SE MOUN T
NG A 200 0
NG A 200 0
Personal
Computer
Fig. P-4: Example/possibilities of NGA analyzer system
Based on a typical MLT analyzer the schematic illustrates the simplicity of a networked system
which incorporates additional AMs, such as Chemiluminescence and Flame Ionisation.
Other system functionalty includes links to associated sample handling, auxiliary I/O and PC
Databases.
Fig. P-4 illustrates the historical background including all AM's and I/O's.
Actually we offer the platform, MLT, CLD, WCLD, FID, HFID (TFID) and SIO & DIO.
MLT includes the capability for NDIR/UV/VIS (fotometric), PO2 (PMD, paramagnetic Oxygen),
EO2 (electrochemical oxygen), TEO2 (trace oxygen) and TCD (thermal conductivity) benches.
P-6
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
12/2006
PREFACE
System Unit
SIO/DIO Configuration
MLT analyzer module (AM):
• without front panel,
i.e. "blind" without control unit
⇒
1 local SIO and 1 local DIO
(or 2 local DIO’s) can be installed in
the MLT analyzer module
•
⇒
SIO and DIO can be configured
for the MLT AM channels module
only
⇒
1 SIO and up to 4 DIO's (or 5 DIO's)
can be installed in the platform
(CM I/O’s)
⇒
SIO and DIO can be configured
for all MLT channels & AM’s
combined with the platform
can be combined with
a platform,
a MLT analyzer,
a TFID analyzer or
a customer developed control unit
Platform (Control Module Software):
• Control unit with front panel
• Without measurement channels
MLT analyzer
⇒ 1 SIO and 1 DIO (or 2 DIO’s) can be
(CM plus MLT AM software = MCA software):
installed in the MLT analyzer
(CM I/O)
• Analyzer with front panel
•
CM and AM software in the same analyzer,
i.e. all functions of the control unit and of
the AM are combined in one controller
board
⇒
SIO and DIO can be configured
for all MLT channels & AM’s
combined with the MLT analyzer
Table P-1: Possibilities of NGA 2000 MLT I/O combinations
Emerson Process Management GmbH & Co. OHG
P-7
NGA 2000 MLT Hardware
PREFACE
P-8
Instruction Manual
90002929
12/2006
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
01/2007
NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION
STANDARD GENERAL PURPOSE APPLICATIONS/INSTALLATION IN HAZARDOUS AREAS
1.
Technical Description
1.1
Standard General Purpose Applications
The different analyzers and analyzer modules are assembled in principle identically.
All components of analyzers or analyzer modules are incorporated into a housing for platform
mounting (MLT 1), a 1/2 19" housing (MLT 1) or a 1/1 19" housing (MLT 3/4).
MLT 1 analyzer module housings for platform mounting are available to built-in into a NGA platform
only (M) or for external installation and platform mounting (A) connected via NGA network.
The 1/2 19" and 1/1 19" housings are available as rack mounting (R) or as table-top (T) versions.
For analyzer modules there is mounted a blind plate instead of an operation front panel.
An IP 65 protected field housing (MLT 2) for outdoor installation is available, too.This enclosure is
intended to be wall mounted.
1.2
Installation in Hazardous Areas
Note!
This manual does not deal with special conditions for analyzers in hazardous areas, related to
installation, operation, maintenance etc. For such applications refer to the separate instruction manuals, delivered together with the analyzers.
For installation in hazardous areas the MLT 2 analyzer or analyzer module is provided with an
adapted pressurization system (ATEX type approved for Zone 1 resp. Zone 2 in Europe) and an
impact tested magnetically operated front panel. Optionally intrinsically safe signal couplers are
available, too.
A simplified Z Purge system permits installation in North America Zone 2 environments. The
MLT 2-NF is type approved for non-flammable sample gas acc. to CSA-C/US for both Canada
and US.
The CAT 200 analyzer or analyzer module, designed to be installed in hazardous areas, too,
comprised of a 1/2-19" analyzer analyzer installed into a flameproof enclosure.This model is CSAC/US and ATEX approved for installation in North-American and European hazardous areas.
Emerson Process Management GmbH & Co. OHG
1-1
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DESCRIPTION
90002929
07/2006
OPERATING FRONT PANEL: STANDARD VERSION
1.3
Operating Front Panel
1.3.1
Standard Version
The front panel of the analyzer is the operating front panel (see Fig. 1-1).
Measured values and the entire operating procedure are displayed on a LC display. The operation
and programming of the instrument is performed by using the four cursor keys, the ENTER key
and the five soft keys
For analyzer modules there is mounted a blind plate instead of an operation front panel.
Fastening screws for rack mounting or carrying-strap bracket
Cursor keys
LC display
Soft keys
(function is depending on Software Menu)
ENTER key
Fastening screws for rack mounting or carrying-strap bracket
Fig. 1-1: Operation front panel, Front view
1-2
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
1.3.2
TECHNICAL DESCRIPTION
OPERATING FRONT PANEL: MAGNETICALLY OPERATED TOUCH PANEL
Magnetically Operated Touch Panel
Analyzers intended either to be used in hazardous area or for outdoor usage (e.g. MLT 2 or CAT 200)
are provided with a magnetically operated touch panel. This special version ensures ingress
protection (IP) and resistance against mechanical shocks. On account of its design it requires some
special measures to operate the corresponding analyzer in a safe manner, so read the following
instructions carefully!
1.3.2.1
Magnetic Touch Panel Elements
Whereas standard front panels are using keys for operating the analyzer the magnetically operated
touch panel uses contactless technology instead. This results in a slightly different design:
Each standard panel key is replaced by a reed relay located behind the front panel design foil. (CAT
200, MLT 2 only:The sequence of the 4 keys at the right side has changed due to ergonomic reasons.)
Fig. 1-2: Magnetically Operated Touch Panel, Front view
Emerson Process Management GmbH & Co. OHG
1-3
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DESCRIPTION
90002929
07/2006
OPERATING FRONT PANEL: MAGNETICALLY OPERATED TOUCH PANEL
1.3.2.2
Accessories
To operate the magnetically operated touch panel a special tool (actuator) is required.The following
picture shows this tool as it should be provided together with your analyzer. If it is missing please
contact your local sales office.
Fig. 1-3a: Magnetic actuator
1.3.2.3
Fig. 1-3b: Magnetic
actuator,
view at magnets
Operating the Touch Panel
The touch panel is operated by activating the reed relays using the actuator.
This is done by holding that actuator’s end in front of the key that is equipped with 2 small magnets.
As the reed relays are installed alternating vertical and horizontal to prevent accidentally activation
of an adjacent key, the actuator has to be aligned the same way.
The design foil shows for each key how the actuator has to be aligned using the symbols
“ and „ “ :
„
Fig. 1-4a: Symbols showing actuator alignment
Fig. 1-4b: Horizontally aligned, activating F4
1-4
Fig. 1-4c: Vertically aligned, activating F5
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
1.3.2.4
NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION
OPERATING FRONT PANEL: MAGNETICALLY OPERATED TOUCH PANEL
Storing the actuator tool
The tool is provided with a chain and a special fixture to be installed at one of the analyzer’s mounting
screws (see Fig. 1-5).
It is recommended to place the actuator tool on the fixture as shown to avoid unintended interference
while not in use.
Fig. 1-5: Actuator stored when not in use
Emerson Process Management GmbH & Co. OHG
1-5
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DESCRIPTION
90002929
07/2006
MLT 1 (1/2 19" HOUSING)
1.4
MLT 1
The different analyzers and analyzer modules are assembled in principle identically.
All components of analyzers or analyzer modules are incorporated into a housing for platform
mounting (MLT 1) or a 1/2 19" housing (MLT 1).
The equipment is specified for an operating voltage of 24 V DC (± 5 %).
There are mounted optional different components at the rear side of the front panel (Fig. 1-7).
1.4.1
MLT 1 1/2 19" housing
The 1/2 19" and 1/1 19" housings are available as rack mounting (R) or as table-top (T) versions.
For analyzer modules there is mounted a blind plate instead of an operation front panel.
On the rear panel the connector for 24 V dc supply (MLT 1 [not MLT (M)]), the gas connections,
the network connections and the connectors of optional PCBs (see optional, separate Operation
Manuals) are accommodated.
Fastening screws for rack mounting or carrying-strap bracket
Fastening screws for rack mounting or carrying-strap bracket
Fig. 1-6: MLT analyzer, Front view
1-6
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
TECHNICAL DESCRIPTION
MLT 1 (1/2 19" HOUSING)
UVS (Voltage Supply for UV Source)
[Option]
Fan
Pressure Sensor
[Option]
OUT
IN
O2 Sensor, electrochemical
[Option]
Fig. 1-7: MLT 1, Front panel, Rear view
Network connection (RJ 45 socket)
[not for platform mounting module]
optional PCBs [SIO / DIO e. g.]
Gas connections
Input 24 V dc [not for platform mounting module]
Fig. 1-8: MLT 1, Rear panel (standard)
Emerson Process Management GmbH & Co. OHG
1-7
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DESCRIPTION
90002929
07/2006
INTERNAL CONSTRUCTION MLT1 (1/2 19" HOUSING)
Gas Connections Solenoid Valves
(Option in preparation)
Gas Connections
Photometer
(MLT specific assembly)
Cardcage
(see section 1.10)
Flow Sensor
(Option)
O2 Sensor, electrochemical
(Option)
Voltage Supply for
UV Source (Option)
Fan
Pressure Sensor
(Option)
Operating Front Panel (analyzer) or Blind Plate (analyzer module)
Fig. 1-9: MLT 1, Rack/Table-top Housing, Top view
(with electrochemical O2 Sensor)
1-8
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
TECHNICAL DESCRIPTION
INTERNAL CONSTRUCTION MLT1 (1/2 19" HOUSING)
Gas Connections
Flow Sensor
(Option)
O2 Sensor, paramagnetic
(Option)
Cardcage
(see section 1.10)
Photometer
(MLT specific assembly)
Voltage Supply for
UV Source (Option)
Fan
Pressure Sensor
(Option)
Operating Front Panel (analyzer) or Blind Plate (analyzer module)
Fig. 1-10: MLT 1, Rack/Table-top Housing, Top view
(with paramagnetic O2 Sensor)
Emerson Process Management GmbH & Co. OHG
1-9
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DESCRIPTION
90002929
07/2006
INTERNAL CONSTRUCTION MLT1 (1/2 19" HOUSING)
Gas Connections
Gas Connections Solenoid Valves
(Option in preparation)
Photometer
(MLT specific assembly)
Cartridge
(see Item 1.10)
Flow Sensor
(Option)
O2 Sensor, paramagnetic
(Option)
Pressure Sensor
(Option)
Voltage Supply for
UV Source (Option)
Operating Front Panel
(analyzer) or
Blind Plate (analyzer module)
Fan
Fig. 1-11: MLT 1, Rack/Table-top Housing extended, Top view
(with paramagnetic O2 Sensor)
1 - 10
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
01/2007
1.4.2
NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION
MLT1 ULCO
MLT 1 ULCO
NGA 2000 MLT 1 ULCO gas analyzer is specially designed to measure ultra low carbon
monoxide in a matrix with high water vapor and/or carbon dioxide contents. The analyzer is
equipped with a 2nd optical bench including a multi detector assembly (MDA block) for cross
interference compensation, especially being designed for automotive and flue gas
applications. Water vapor and carbon dioxide measurement is used for internal cross
interference compensation thus providing an ultra low CO and percentage CO2 channel as
standard. This solution is designed for automotive (Internal Combustion Engine Emissions,
ICEE) and Continuous Emissions Monitoring Systems (CEMS). An additional COhigh channel
is available as option on automotive applications. The water vapor channel is designed for
measuring crossinterferences only but coudl be used as a measuring channel too but without
offering the same accuracy as a "normal" measuring channel. This means that teh standard
specifications are not applicable for this special water vapor channel.
For gas purity measurement new quality standards require ultra low CO measurement but not
such high dynamic ranging and cross compensation.
Therefore the 2nd bench (MDA) is not used, but another channel, e.g. ultra low carbon dioxide
(ULCO2) can be implemented in MLT 1.
Emerson Process Management GmbH & Co. OHG
1 - 11
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DESCRIPTION
90002929
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INTERNAL CONSTRUCTION MLT1-ULCO
Gas Connections
Detector COlow
Flow Sensor
(Option)
Cardcage
(see Item 1.10)
Detector COhigh
(Option, ICEE/CEMS only)
Multi Detector Assembly MDA
(CO2/H2O detector for
cross compensation
and CO2 measurement,
ICEE/CEMS only)
Fan
Pressure Sensor
(Option)
Operating Front Panel (analyzer) or Blind Plate (analyzer module)
Fig. 1-12: MLT 1 ULCO, Rack/Table-top Housing, Top view
1 - 12
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
1.4.3
TECHNICAL DESCRIPTION
MLT1 (HOUSING FOR PLATFORM MOUNTING)
MLT 1 Housing for platform mounting
MLT 1 analyzer module housings for platform mounting are available to built-in into a NGA platform
only (M) or for external installation and platform mounting (A) connected via NGA network.
Analyzer modules for platform mounting have a blind plate too (Fig. 1-x).
Additional the necessary electrical connections for platform mounting (24 V dc and network) are
brought out to this blind plate. For external installation of analyzer module (A) the connections on
frontside are closed with a blind plate to be in agreement with the CE conformity. For platform
mounting of the module remove this blind plate.
Network
For analyzer module (A) [external installation or platform mounting] it is not
allowed to supply the module from front and rear simultaneously !
For external installation connections on frontside absolutely have to closed
with the blind plate delivered from our factory to be in agreement with the CE
conformity.!
Network
ME -
Use either
front
OR
rear
supply
+
CAUTION !
24 V dc
IN
Retention pins
Fig. 1-13: MLT 1 analyzer module (Platform mounting), Front panel, Front view
Emerson Process Management GmbH & Co. OHG
1 - 13
NGA 2000 MLT Hardware
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TECHNICAL DESCRIPTION
90002929
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INTERNAL CONSTRUCTION MLT1 (HOUSING FOR PLATFORM MOUNTING)
Gas Connections
Gas Connections Solenoid Valves
(Option in preparation)
Photometer
(MLT specific assembly)
Cardcage
(see Item 1.10)
Flow Sensor
(Option)
O2 Sensor, electrochemical
(Option)
Voltage Supply for
UV Source (Option)
Fan
Pressure Sensor
(Option)
24 V dc Input / Network
Fig. 1-14: MLT 1, Platform mounting, Top view
(with electrochemical O2 Sensor)
1 - 14
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
TECHNICAL DESCRIPTION
INTERNAL CONSTRUCTION MLT1 (HOUSING FOR PLATFORM MOUNTING)
Gas Connections
Flow Sensor
(Option)
O2 Sensor, paramagnetic
(Option)
Cardcage
(see Item 1.10)
Photometer
(MLT specific assembly)
Voltage Supply for
UV Source (Option)
Fan
Pressure Sensor
(Option)
24 V dc Input / Network
Fig. 1-15: MLT 1, Platform mounting, Top view
(with paramagnetical O2 Sensor)
Emerson Process Management GmbH & Co. OHG
1 - 15
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TECHNICAL DESCRIPTION
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INTERNAL CONSTRUCTION MLT1 (HOUSING FOR PLATFORM MOUNTING)
Gas Connections Solenoid Valves
(Option in preparation)
Gas Connections
Photometer
(MLT specific assembly)
Cardcage
(see Item 1.10)
Flow Sensor
(Option)
O2 Sensor, paramagnetic
(Option)
Fan
Pressure Sensor
(Option)
Voltage Supply for
UV Source (Option)
24 V dc Input /
Network
Fig. 1-16: MLT 1, Platform mounting extended, Top view
(with paramagnetic O2 Sensor)
1 - 16
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Instruction Manual
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1.5
NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION
MLT2 (FIELD HOUSING)
MLT 2 (Field Housing)
With MLT 2 Emerson Process Management offers a gas analyzer designed for wall mounting and
outdoor installation due to it‘s stainless steel enclosure.
All MLT 2 components are incorporated into a wall-mountable housing with ingress protection code
IP 65 (approx. NEMA 4/4X) according to EN 60529.
The optional impact protected front panel enables installation at harsh locations (or even in
hazardous area when combined with a pressurization system for the enclosure).
Such analyzers are contactless operated using a special magnetic tool.
All interface signals (partial options) are accessible on internal screw terminal blocks. That applies
to mains power supply, too..
The MLT 2 can be purged to remove corrosive or toxic gases with synthetic air or instrumental air
(dry, free of oil, hydrocarbons and corrosive components; 20 to 35 °C purge gas temperature). If
sample gas contains flammable gas components above the lower explosion limit, the required
explosion protection measures (purge system) must be approved by an authorized person (purge
system) .
MLT 2 is available with a dual compartment enclosure, too, whereat electronics and photometer/
sensors are installed in two separate housings.
A special high temperature variation of MLT 2 for temperatures up to 120 °C is optionally available
(standard: 55 °C; 65 °C as option).
The analyzer is specified for an operating voltage of 230 V AC or 120 V AC resp., 47-63 Hz.
Built-in power supply (manual switch between 230/120 VAC) is either power supply of type SL5
or of type SL10
For installation in hazardous areas the MLT 2 is provided with an adapted pressurization system
(ATEX type approved for Zone 1 resp. Zone 2 in Europe) and an impact tested magnetically
operated front panel. Optionally intrinsically safe signal couplers are available, too.
A simplified z-purge system permits installation in North America Zone 2 environments.
This current instruction manual covers using the MLT 2 analyzer for general
purpose applications only!
Installation, startup and maintenance for operation in hazardous areas are described in detail in a separate instruction manual, shipped together with each
such analyzer and are not subject of the current instruction manual!
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TECHNICAL DESCRIPTION
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MLT2 (FIELD HOUSING)
Connection of mains and interface signals are to be established via internal
screw terminal blocks. This requires working inside an opened analyzer,
near by potentially live components!
Installation of this analyzer is allowed by qualified personnel only, familiar
with the potential risks of working near live components!
The model MLT 2 (field housing) does not provide a mains switch. A mains
switch or circuit breaker must be provided in the building installation. This
switch has to be installed near by the analyzer, must be easily operator
accessible and has to be designated as disconnector for the analyzer.
Cables for external data processing must be double insulated for mains
voltage. If not available, signal cables inside the analyzer must be installed
with a distance of at least 5 mm to mains cables. Distance has to be ensured
permanently, e.g. by using cable ties!
MLT 2 -- HEAVY INSTRUMENTS !
The analyzer variation MLT 2 intended to be wall mounted and/or outdoor
installed weigh up to 35 kg, depending on included options!
Use two person and/or suitable tools for transportation and lifting these
instruments!
Take care to use anchors and bolts specified to be used for the weight of
the units!
Take care the wall or stand the unit is intended to be installed at is solid
and stable to hold the units!
Risk of electric shock!
MLT 2 analyzers provide earth connection terminals. To minimize risk of
electric shock the enclosure must be connected to earth! Therefore
connecting the analyzer is allowed only by using a 3 pole mains cable
providing a separate earthing conductor.
Any interruption of the earthing conductor inside or outside the analyzer as
well as loosening the earthing connection may cause serious injury! Intended
interruption of earthing connections is not permissible!
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Instruction Manual
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TECHNICAL DESCRIPTION
MLT2 (FIELD HOUSING)
Wall mounting
holder
Open
Open
Open
Fastener
front panel
Operation front
panel
Open
Open
Open
Front panel
Fig. 1-17a: Front view MLT 2 (Standard housing/Standard operation front panel)
Fig. 1-17b: Front view MLT 2 (Dual compartment housing/Standard operation front panel)
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TECHNICAL DESCRIPTION
90002929
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INTERNAL CONSTRUCTION MLT2 (FIELD HOUSING)
Terminal Strips Option SIO
(RS 232/485 and Relay Contacts)
Fuses (T 6.3A/250V)
X11
X9
Circuit Boards
(see Item 1.10)
X10
Serial out
12
1234
F100.1
F100.2
11
Terminal Strips
Terminal Strips Option SIO Photometer sliding carriage
Option DIO
(analog outputs)
(Fig. 1-18b)
Fig. 1-18a: MLT 2, Inside view (drawing without front panel)
Photometer (MLT specific assembly)
O2-Sensor,
paramagnetic
(Option)
Physical interface PIC
(alternative position)
Heating Unit
(Option)
Photometer
(MLT specific assembly)
Fig. 1-18b: MLT 2, Photometer sliding carriage, Top view
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1.6
TECHNICAL DESCRIPTION
MLT3
MLT 3
All components of analyzers or analyzer modules are incorporated into a 1/1 19" housing.
The housings are available as rack mounting (R) or as table-top (T) versions. For analyzer modules
there is mounted a blind plate instead of an operation front panel.
The equipment has an internal power supply with “autoranging” for operating voltages of 230 V
AC or 120 V AC resp., 47-63 Hz.
F1
F2
F3
F4
F5
N GA 2000
Fig. 1-19: MLT 3 (standard) (1/1 19" housing), front view
Network connection
(RJ 45 socket)
IN
Ch 1
OUT
IN
Ch 2
OUT
optional PCB [SIO/DIO e.g.]
Input 230/120 V ac (UPS 01 T)
Gas connections
Fig. 1-20: MLT 3 (standard version), Rear view
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TECHNICAL DESCRIPTION
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INTERNAL CONSTRUCTION MLT3
Gas Connections
Photometer
(MLT specific assembly)
Power Supply
(UPS 01 T)
O2 Sensor,
paramagnetic
(Option)
Cardcage
(see Item 1.10)
Flow Sensor
(Option)
Heating
Unit
Gas Sampling Pump
(Option)
Pressure Sensor
(Option)
Fan
Voltage Supply for
UV Source (Option)
Fine Dust Filter
(Option)
O2 Sensor (Option),
electrochemical
Operating Front Panel (analyzer) or
Blind Plate (analyzer module)
Fig. 1-21: MLT 3 (standard version), Top view
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01/2007
1.6.1
TECHNICAL DESCRIPTION
MLT3 (GAS PURITY MEASUREMENT)
MLT 3 (Gas purity measurement)
Special versions of MLT 3 are available with suppressed ranges for gas purity measurements and
measurements requiring physics thermostated up to 120 °C - see separate manual for gas
purity with suppressed ranges.
Example and short description of the main deviations from standard MLT 3:
Compared with “standard MLT 3 version” the “MLT 3 for gas purity measurement” can be
equipped with a divided front panel.
On the right side there is the operation front panel (analyzer) or a blind plate (analyzer module)
resp.
On the left side there is built-in one flow meter and as option one quick shutoff connector as sample
gas inlet.
Is the instrument is not equipped with a solenoid valve block, there can be built-in as option a
manual 4/2-way-valve to switch to sample gas, zero gas or span gas.
For more detailed informations use the special instruction manual for this application.
F1
F2
F3
F4
F5
NGA 2000
Rosemount Analytical
Flow meter
Quick shutoff connector
(sample ges input, option)
Manual 4/2-way-valve
(option)
Operation front panel
Fig. 1-22a: MLT 3 (example for gas purity measurement), front view
Additional to “standard MLT 3 version” (identical on the left part) the “MLT 3 for gas purity
measurement” is equipped with a solenoid valve block for the supply of sample gas, zero gas
and span gas, controlled by the analyzer. The control will be done with the relay outputs of I/
O Board “SIO” via an external connection cable “SIO ➞ Solenoid Valve Block” (pin
assignments look at Fig. 21-4).
The necessary gas connections are placed here too and are used and marked analyzer
specific (see Fig. 1-23). The outlet of the valve block is connected to the MLT 3 gas inlet.
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TECHNICAL DESCRIPTION
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MLT3 (GAS PURITY MEASUREMENT)
!
Span gas
DIGITAL I/O
230/120 V
50/60 Hz
max. 240 VA
NETWORK
Sub.-min. D, 9 pole
(connection to PCB “SIO”)
Exhaust
Sample gas
ANALOG I/O
SERIAL I/O
Sub.-min. D, 9 pole
(to Solenoid Valve Block Option)
Zero gas
PCB “SIO”
Input 230/120 V ac
(PS UPS 01 T)
Solenoid Valve Block (Option)
Gas connections
(analyzer specific)
Fig. 1-22b: MLT 3 (example for gas purity measurement), Rear view
1.6.2
MLT 3HT (high temperature measurement)
As a special versions MLT 3HT is available for measurements requiring physics thermostated
up to 120 °C. The physical section is parted in a HT part (special heating and isolation) for all
components being in contact with sample gas - SS tubing, fine dust/safety filter, needle valve,
calibration valve (depending on options). The isolation (filter) cell, chopper & detector are
outside of the heated room together with a temperature controller and ventilator. The heated
line and external pump (with heated head) need isolation at any connection/ fitting:
Heated Section
with
SS tubing,
safety filter,
Gas inlet/ outlet fittings
sample gas cell
Isolation cell,
chopper &
detector
Temperature Controller/ Ventilator (outlet filter)
Fig. 1-23: MLT 3HT (example for high temperature measurement), Top/ front view
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TECHNICAL DESCRIPTION
INTERNAL CONSTRUCTION MLT3 (GAS PURITY MEASUREMENT)
Gas connections
Photometer
(MLT specific assembly)
Solenoid valve block
(Option)
Power Supply
(UPS 01 T)
O2 Sensor,
paramagnetic
(Option)
Cardcage
(see Item 1.10)
Heating
Unit
Pressure
regulator
Fan
Flow meter
Manual 4/2-way-valve
(Option)
Pressure sensor
Operating Front Panel
(analyzer) or
Blind Plate (analyzer module)
Fig. 1-24: MLT 3 (gas purity measurement), Top view
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TECHNICAL DESCRIPTION
90002929
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MLT4
1.7
MLT 4
All components of analyzers or analyzer modules are incorporated into a 1/1 19" housing.
The housings are available as rack mounting (R) or as table-top (T) versions. For analyzer modules
there is mounted a blind plate instead of an operation front panel.
The equipment is specified for an operating voltage of 24 V DC (± 5 %).
F1
F2
F3
F4
F5
N GA 2000
Fig. 1-25: MLT 4 (1/1 19" housing), front view
Network connection (RJ 45 socket)
1
IN
optional PCB [SIO/DIO e.g.]
OUT
Input 24 V dc
3/Purge
3/Purge
IN
OUT
2
IN
OUT
Gas connections
Fig. 1-26: MLT 4, Rear view
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TECHNICAL DESCRIPTION
INTERNAL CONSTRUCTION MLT4
Gas Connections
Gas Connections
O2 Sensor, paramagnetic
(Option)
Photometer
(MLT specific assembly)
Photometer
(MLT specific
assembly)
Cardcage
(see Item 1.10)
Heating
Unit
Fan
Voltage Supply for
UV Source (Option)
O2 Sensor (Option),
electrochemical
Voltage Supply for
UV Source (Option)
Operating Front Panel (analyzer) or
Blind Plate (analyzer module)
Fig. 1-27: MLT 4, Rack/Table-top Housing, Top view
Emerson Process Management GmbH & Co. OHG
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NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION
CAT 200
1.8
Instruction Manual
90002929
07/2006
CAT 200
The CAT 200 is an analyzer with flameproof enclosure, designed especially for operation in
hazardous areas. It is approved to meet the requirements of the European Directive for equipment
intended to be used in hazardous areas (commonly know as "ATEX 95“) and of the North American
Standards (certified by the Canadian Standards Association, CSA International).
The enclosure meets IP 65 (optional: IP 66, tropicalisation), has robust design and is prepared for
wall mounting. Therefore the analyzer may be used for general purpose applications requiring
outdoor installation, too.
This current instruction manual covers using the CAT 200 analyzer for general
purpose applications only!
Installation, startup and maintenance for operation in hazardous areas are described in detail in a separate instruction manual, shipped together with each
such analyzer and are not subject of the current instruction manual!
Installed inside the flameproof enclosure an analyzer module holds all measuring components.
As the module corresponds to a 1/2-19" MLT 1 analyzer/analyzer module, a CAT 200 analyzer
offers almost the same options.
This analyzer model is supplied by an internal wide range power supply, automatically adapting
to the voltage at site (Rated input voltage: 115-230 V
50/60 Hz, Input voltage range: 85 - 264
V , 47 - 63 Hz).
Because of the intention to used in hazardous areas the front panel is located behind a safety glas
window. The analyzer is touchless operated by using a magnetically tool, whereat the standard
pushbuttons are replaced by sensor fields (see fig. 1-2).
All interface signals (partial options) are accessible on screw terminal blocks, located in a separate
junction box. That applies to mains power supply, too.
Take care of the special installation instructions in chapter 5 "Installation“!
Located below the junction box is a second volume consisting of dome housing, extender housing
and base, containing analyzer module, power supply unit, fuses and gas pipes (see fig. 1-28). All
three parts of the enclosure are threated together. Unthreading the parts gives access to the
internal components.
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TECHNICAL DESCRIPTION
CAT 200
Connection of mains and interface signals are to be established via internal
screw terminal blocks. This requires working inside an opened analyzer,
near by potentially live components!
Installation of this analyzer is allowed by qualified personnel only, familiar
with the potential risks of working near live components!
The model CAT 200 does not provide a mains switch. A mains switch or
circuit breaker must be provided in the building installation. This switch
has to be installed near by the analyzer, must be easily operator accessible
and has to be designated as disconnector for the analyzer.
The Junction Box must be protected by fuse supply which has a breaking
capacity adjusted to the short circuit of the equipment. The 10 A fuse has to
be installed in the building installation!
CAT 200 -- HEAVY INSTRUMENTS !
The analyzer variation CAT 200 intended to be wall mounted and/or outdoor
installed weigh up to 70 kg, depending on included options!
Use two person and/or suitable tools for transportation and lifting these
instruments!
Take care to use anchors and bolts specified to be used for the weight of
the units!
Take care the wall or stand the unit is intended to be installed at is solid
and stable to hold the units!
Risk of electric shock!
CAT 200 analyzers provide earth connection terminals. To minimize risk of
electric shock the enclosure must be connected to earth! Therefore
connecting the analyzer is allowed only by using a 3 pole mains cable
providing a separate earthing conductor.
Any interruption of the earthing conductor inside or outside the analyzer as
well as loosening the earthing connection may cause serious injury! Intended
interruption of earthing connections is not permissible!
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TECHNICAL DESCRIPTION
90002929
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CAT 200
1
11
2
3
10
9
4
8
7
6
5
Fig. 1-28: CAT 200, Exterior view
1
2
3
4
5
6
1 - 30
Eye bolts (2 pcs)
Cable glands for signal cables (3 pcs max)
Eye bolts (2 pcs)
Mounting holes (4 pcs.)
Base
Extender housing
7
8
9
10
11
Dome housing
Front panel behind safety glass
Interlock screw
Interlock screw
Junction box
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
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TECHNICAL DESCRIPTION
CAT 200
6
5
4
3
1
2
Fig. 1-29: CAT 200
(Dome and extender housing removed)
1
2
3
4
Analyzer module
Gas fittings with internal flame arrestors
Bracket for analyzer module
Nameplate label
Emerson Process Management GmbH & Co. OHG
5
6
Cable gland for mains cable
External earth connector
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TECHNICAL DESCRIPTION
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INTERNAL GAS PATHS
1.9
Internal Gas Paths
The materials used for the gas paths may be selcted to suit the intendend application. In marking
such selection the diffusion rates of the individual gas components, their corrosivity, and the
temperature and pressure of the sampled gas must be taken into account.
1.9.1
Gas Path Material
The physical and chemical properties of the sampled gas and the operating conditions (temperature and pressure) of the analyzer determine the materials which may be used for gas paths and
gas fittings.
Fittings
For standard the analyzers are provided with PVDF fitting, 6/4 mm. The analyzers can to be
delivered with swagelok® fittings, stainless steel, 6/4 mm or 1/4" as option.
Additional fittings to be delivered on request, consult factory.
Tubing
For standard the analyzers are provided with Viton tubing or PVDF tubing (6/4 mm).
Additional tubings (e.g. stainless steel) to be delivered on request, consult factory.
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1.9.2
TECHNICAL DESCRIPTION
INTERNAL GAS PATHS
Gas Path Layout (internal tubing)
The principle various possible layouts of the internal gas lines are summarized in the table 1-1.
In
Out
tubing in series
In
Out In
Out In
Out
Out In
Out
tubing in parallel
In
combined tubing:
series and parallel
(special tubing)
internal parallel
Out
COhigh CO2/H2O
external in series,
In
COultra low
ULCO
special tubing:
Note:
Tubing must not be
changed by customer !
Table 1-1: Possible internal tubings (examples with 3 measuring channels)
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TECHNICAL DESCRIPTION
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INTERNAL GAS PATHS MLT 3 (GAS PURITY MEASUREMENT)
1.9.3
MLT 3 (gas purity measurement)
The necessary gas connections are marked analyzer specific (see section 5.3.and 5.4.3.1).
Different possibilities of internal layout and external tubing are shown in Fig. 1-30, depending on
instrument specific features.
Up to the internal pressure regulator the gas paths are designed as stainless steel tubings. Behind
the flow meter the gas paths are viton tubings.
All external fittings are swagelok®, stainless steel, 6/4 mm, 1/8 " or 1/4 ".
tube piece
gas outlet
pressure
sensor
6 mm
Viton tubing
Viton tubing
6 mm
Viton tubing
PO2
front side
rear side
Viton tubing
analysis cell
Viton tubing
analysis cell
span gas
Viton tubing
sample gas
zero gas
SS tubing
safety dust filter
6 mm
threated plug 1/8"
1/16"
1/8"
1/8"
1/8"
6 mm
1/16"
SS tubing
SS capillary
Fig. 1-30a: MLT 3 (gas purity measurement), gas path layout
(3 measuring channels with solenoid valve block option)
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TECHNICAL DESCRIPTION
INTERNAL GAS PATHS MLT 3 (GAS PURITY MEASUREMENT)
6 mm
6 mm
sample gas
SS tubing
1/8"
tube piece
gas outlet
quick shutoff
connector
pressure
sensor
6 mm
Viton tubing
Viton tubing
6 mm
Viton tubing
SS tubing
PO2
front side
rear side
Viton tubing
analysis cell
Viton tubing
analysis cell
span gas
Viton tubing
zero gas
SS tubing
saftey dust filter
threated plug 1/8"
1/16"
6 mm
1/8"
1/8"
1/8"
6 mm
1/16"
SS tubing
SS capillary
Fig. 1-30b: MLT 3 (gas purity measurement), gas path layout
(3 measuring channels with solenoid valve block option and quick shuttoff connector option)
tube piece
gas outlet
pressure
sensor
6 mm
Viton tubing
Viton tubing
6 mm
front side
rear side
Viton tubing
analysis cell
Viton tubing
analysis cell
Viton tubing
threated plug 1/8"
6 mm
span gas
6 mm
sample gas
1/16"
6 mm
SS tubing
6 mm
SS tubing
1/8"
1/16"
SS tubing
6 mm
6 mm
SS tubing
1/8"
SS capillary
1/8"
safety dust filter
SS tubing
4/2-way-valve
zero gas
Fig. 1-30c: MLT 3 (gas purity measurement), gas path layout
(2 measuring channels with manual 4/2-way-valve option)
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TECHNICAL DESCRIPTION
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PRINTED CIRCUIT BOARDS
1.10
Printed Circuit Boards
All necessary PCBs are pushed in into a cardcage, which is identically for all MLT versions (see
Fig. 1-31).
MLT Rear Panel
Cardcage
Network Inlet Module
(LEM)
optional PCB
(e.g. SIO / DIO)
Interconnection Board
(ICB)
Physical Interface (PIC)
or
Digital Signal Processing (DSP)
Signal Processing (PSV)
(free if using DSP)
Controller Board (ACU)
MLT Front Side
Fig. 1-31a: Cardcage MLT 1/3/4, Top View
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TECHNICAL DESCRIPTION
PRINTED CIRCUIT BOARDS
optional PCB
[e.g. SIO / DIO]
Signal Processing
(PSV)
(free if using DSP)
Inter Connection Board
(ICB)
out
Network Inlet Module Controller Board
(ACU)
(LEM, Option)
Physical Interface (PIC)
or
Digital Signal Processing (DSP)
Fig. 1-31b: PCB arrangement MLT 2
[Inside view, detail (without front panel)]
1.10.1
ICB (Inter-Connection Board)
ICB is an interconnection board consisting of six 64-pin ICB bus slots to accommodate printed
circuit boards (PCB of Euro standard format).
1.10.2
PSV/PIC Combination
The PSV card (signal processing) carries out the A/D conversion and the real evaluation of each
measuring signal.
The PIC card (Physics Interface Card, page 1-38) supplies the photometer components and the
individual sensors with the individual required operating voltages and transmits all measuring
signals to the signal processing unit PSV.
1.10.3
DSP (alternitavely to PSV/PIC Combination)
The DSP card (Digital Signal Processing) page 1-39) supplies the photometer components and
the individual sensors with the individual required operating voltages and carries out the A/D
conversion and the real evaluation of each measuring signal.
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PHYSICS INTERFACE CARD (PIC)
1.10.4
PIC (Physics Interface Card)
The PIC card (Physics Interface Card) supplies the photometer components and the individual
sensors with the individual required operating voltages and transmits all measuring signals to the
signal processing unit PSV.
1
2
3
Fig. 1-32: Plug pin assignment PCB PIC
The plugs shown in Fig. 1-20 are used as follows:
Plug No.
34
2
47
45
20
10
3
4
11
12
8
7
6
5
23
1 - 38
used
Chopper 1 (channel 1+2)
Chopper 2 (channel 3+4)
Flow sensor 1
Flow sensor 2
Temperature sensor 1 (chopper 1)
Temperature sensor 2
Source channel 4
Source channel 3
Source channel 2
Source channel 1
Detector channel 4
Detector channel 3
Detector channel 2
Detector channel 1
Detector channel 5 (O2 or H2)
Plug No.
1
9
24
21.2
21.3
used
Pressure senor 1
Pressure senor 2
PCB OKI (P2)
PCB OKI (P1)
or
PCB OKI (P4)
PCB OKI (P3)
Flow sensor 3
Flow sensor 4 (P1)
Temperature sensor 3
Temperature sensor 4
Testpeak channel 1
Ground ( )
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
1.10.5
TECHNICAL DESCRIPTION
DIGITAL SIGNAL PROCESSING CARD (DSP)
Digital Signal Processing Card (DSP)
Instead of using the 2 PCB's PIC and PSV alternatively those can be replaced by ONE board
containing both functions in the Digital Signal Processing Board DSP.
NGA Bus connector
Input DC sensors
(e.g. O2/H2 sensors)
Input AC sensors
(e.g. IR/VIS/UV sensors)
Temp. sensor 4/IR(UV) source 4
Temp. sensor 3/IR(UV) source 3
Temp. sensor 2/IR(UV) source 2
Temp. sensor 1/IR(UV) source 1
Pressure sensor 2/Pressure sensor 1
Flow sensor 4/Flow sensor 2
Flow sensor 3/Flow sensor 1
not used/Chopper 2
not used/Chopper 1
not used/not used
Serial interface (BSI10) connector
Local SPI connector
24 VDC input/Heater (BHZ10) connector
Fig. 1-33: Plug pin assignment PCB DSP
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TECHNICAL DESCRIPTION
90002929
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PCB ACU
1.10.6
ACU
The ACU 02 board is the main part of the MLT both Analyzer Module or Analyzer!
It is a one-board CPU card.
All user data are safe loaded via a battery buffer, even when the voltage supply is disconnected.
This card contains the complete software for controlling and operating the analyzer module.
For MLT analyzers (with operation front panel) additional the Control Module Software [platform
(CM) functions (network managment, LCD display control e. g.)] is included.
The board contains the following function blocks:
◆
32 / 16-bit micro controller
◆
Floating point co-processor
◆
dependent on platform version different RAM / Flash-EEPROM
(Standard: 1 MB RAM extension for up to 15 software channels*); Option: additional 0.5 MB RAM extension
if more than 15 software channels*) [contact factory if more than 20 SW channels are requested])
◆
Real-time Clock with
Calendar function
Alarm function
◆
Watchdog function
◆
Serial interface RS 232 C
◆
A network interface with ECHELON chip
◆
System bus:
Parallel bus A6 : D8
12 TPU wiring
network bus
Synchron serial bus
◆
Buffered parallel interface for LCD control
◆
Local bus interface (e.g. storage extension)
◆
Switch-mode power supply for 5 V supply (on board)
*) Calculate software channels (SW) as follows: MLT = 1 SW ch. for each mesuring channel;
all other NGA analyzer modules like CLD, FID, etc. = 1 SW ch.; SIO/DIO = zero SW ch.; Network I/O's = 1/2 SW ch.
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1.10.7
TECHNICAL DESCRIPTION
SIO (STANDARD INPUTS-/OUTPUTS)
SIO (Standard Inputs-/Outputs)
Every platform, every MLT analyzer or every MLT analysis module can be equipped with max. 1
SIO (see table P-1, too)!
At mounting into a platform or an analyzer the SIO serves system functionallity of I/O´s and
supports all analysis modules of the NGA system.
Only the analysis module itself is supported at mounting into an analysis module.
To the programming we refer to the accompanying software instruction. The pin assigments are
described in section 21 of this instruction.
The SIO as standard consists of:
◆ 2 galvanically isolated analogous outputs
Simultaneous 0(4) - 20 mA (± 22 mA, burden < 500 Ω) and
0(2) - 10 V (± 11 VDC, burden > 2 kΩ)
◆ 3 relay outputs
Load max. 30 V/1 A/30 W
◆ 1 serial interface (over extension card SIF)
RS 232 (standard) or RS 485 (option, 2-wire or 4-wire)
Every SIO can be upgraded on 4, 6 or 8 analogous outputs via respective SIA modules with two
analogous outputs each.
5 V DC
supply
NGA system
bus interface
Analog output 1+2
Analog output 3+4
Analog output 5+6
option
SIA
Analog output 7+8
option
SIA
RS 232
or RS 485
digital Function
and Autoconfiguration
option
SIA
SIF
Relay
outputs
Status LEDs
Fig. 1-34: Function blocks of SIO-PCB
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TECHNICAL DESCRIPTION
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Position of
SIF module
RS232 or RS485
Position of SIA module
Analog output 7 + 8
Position of SIA module
Analog output 3 + 4
Position of SIA module
Analog output 5 + 6
DIO (DIGITAL IN-/OUTPUTS)
Fig. 1-35: SIO-PCB with extension cards
1.10.8
DIO (Digital In-/Outputs)
Every platform can be equipped with max. 1 to 5 DIOs. Every MLT analyzer or every MLT analysis
module can be equipped with max. 1-2 DIOs (see table P-1, too)!
For maximum assembly with DIOs (5 or 2 DIOs resp.) there is no place for SIO PCB!
At mounting into a platform or an analyzer the DIO serves system functionallity of I/O´s and
supports all analysis modules of the NGA system.
Only the analysis module itself is supported at mounting into an analysis module.
To the programming we refer to the accompanying software instruction. The pin assigments are
described in chapter 21 of this instruction.
On DIO PCB are integrated:
◆ 8 digital Inputs,
5 - 30 VDC / 2,2 mA
Low level: 0,3 - 3,0 VDC / High level > 4 VDC
◆ 27 digital Outputs,
5 - 30 VDC / max. 500 mA
1 - 42
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Instruction Manual
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1.11
TECHNICAL DESCRIPTION
NETWORK TERMINATION
Network Termination
The network module LEM (see Fig. 1-19) connects the analyzer with external modules via network.
RJ 45 sockets are serving for network interconnection between analyzer or platform and analyzer
modules (see Fig. 1-8, 1-13, 1-20, 1-23 and 1-31b).
It is necessary to terminate the ends of a twisted pair bus to minimize reflections (see Fig. 1-37).
Failure to terminate the bus will degrade network performance.
Termination will be done via RJ 45 connectors (see Fig. 1-36).
Fig. 1-36: RJ 45 network termination connector
Termination
AM
Termination
AM
AM
Analyzer
AM
Termination
AM
AM
Termination
AM
AM
AM
AM
Analyzer
Termination
Analyzer
Fig. 1-37: Network termination (examples)
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TECHNICAL DESCRIPTION
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SPECIFICATIONS AT THE NAMEPLATE LABEL
1.12
Specifications at the Nameplate Label
The analyzer nameplate label gives important information about the instrument‘s configuration,
installed measuring principle(s), sample gas(es) and measuring range(s).
In case an instrument is built according a suitability approval the related certificate number is given,
too.
The nameplate label is located either on the instruments left or right housing side or at the inner side
of the front door (MLT 2).
The CAT nameplate label is located at the housings left side whereat the label as it is shown below
is affixed to the inner analyzer module.
Model and installed measuring
principles
(here: MLT 4 Rackmounting,
2 x IR, 2 x UV, 1 x PO2)
Serial number
Channel 2:
Gas and measuring range
(here: SO2, 26/260 ppm)
Channel 1:
Gas and measuring range
(here: CO, 60/600 ppm)
Channel 4:
Gas and measuring range
(here: NO2, 25/250 ppm)
Channel 4:
Gas and measuring range
(here: CO, 150/1,500 ppm)
Channel 5:
Gas and measuring range
(here: O2, 5/21 Vol-%)
International approval marks
Fig. 1-38: Analyzer Nameplate Label (example)
1 - 44
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Instruction Manual
NGA 2000 MLT Hardware
90002929
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TECHNICAL DESCRIPTION
SPECIFICATIONS AT THE NAMEPLATE LABEL
All analyzer versions are marked as follows:
MLTx y-CH1 CH2 CH3 CH4 CH5
with
x = analyzer type
1, 2, 3, 4, 5, CAT 200 with
1 = 1/2 19", not thermostatted, external power supply
2 = Field housing, thermostatted, internal power supply
3 = 1/1 19"-housing, thermostatted, internal power supply
4 = 1/1 19"-housing, thermostatted, external power supply
5 = 19", 18 to 21 HU housing, thermostatted, internal power supply
CAT 200 = flameproof enclosure
y = analyzer version
T, M, A, R, TE, ME, AE, RE with
T = table top
M = analyzer module, platform mounting
(net/electr. connections from front side only)
A = analyzer module, external installation or platform mounting
(net/electr. connections from rear side or front side)
R = rack mounting
E = extended housing (MLT 1 only)
CH1...5 = measuring method of the individual (max. 5) measuring channels with
IR
=
measurement at infrared spectral range
UV
=
measurement at ultraviolet spectral range
VIS =
measurement at visual spectral range
paramagnetic oxygen measurement
PO2 =
electrochemical oxygen measurement
EO2 =
TC
=
thermal conductivity measurement
TEO2 =
trace electrochemical oxygen measurement
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TECHNICAL DESCRIPTION
1.13
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MLT 2HT (high temperature measurement)
As a special version MLT 2HT is available for measurements requiring physics thermostated
up to 120 °C. The physical compartment is parted into 2 sections:
- A high temperature (HT) part with special heating and isolation for all components being in
contact with sample gas - SS tubing/fittings, fine dust/safety filter, needle valve, calibration
valve (depending on options). The heated lines are connected in the heated room with sample
gas inlet and outlet fittings.
- The isolation (filter) cell, chopper & detector are located in the lower physical part but outside
of the heated room (need protection from high temperature).
The temperature controller is located in the upper electronical section.
An optional external pump with heated pump head may be located outside of the analyzer
being connected with heated samplegas lines (need of isolation at any connection/ fitting).
Temperature controller
in electronical section
Optional purge
gas inlet
Heated section
with
SS tubing,
safety filter and
sample gas cell
Gas inlet/
outlet fittings
Isolation cell,chopper & detector
1 - 46
Isolated inlet for heated gas sampling line to be
connected te gas inlet and outlet fittings
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Instruction Manual
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2.
MEASURING PRINCIPLE
IR MEASUREMENT
Measuring Principle
Depending on analyzer model different measuring methods will be used.
2.1
IR Measurement
The measuring effect devided from absorption of infrared radiation is due to the gas being
measured. The gas - specific wavelengths of the absorption bands characterize the type of gas
while the strength of the absorption gives a measure of the concentration of the component
measured. Due to a rotation chopper wheel, the radiation intensities coming from measuring and
reference side of the analysis cell produce periodically changing signals within the detector.
The detector signal amplitude thus alternates between concentration dependent and concentration independent values.The difference between the two is a reliable measure of the concentration
of the absorbing gas component.
The principle photometer assembly is shown in Fig. 2-1.
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Instruction Manual
MEASURING PRINCIPLE
IR MEASUREMENT
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to electronic
14
14
12
13
11
11
10
10
9
9
8
8
7
7
5
6
3
4
1
2
Fig. 2-1: Measuring Principle for NDIR / UV Measurement
1
2
3
4
5
6
7
2-2
IR source with reflector
VIS / UV source with reflector
Chopper wheel
Eddy current drive
Filter cell with dividing wall (IR channel)
Filter cell with dividing wall (UV channel)
Analysis cell
8
9
10
11
12
13
14
Measuring side
Reference side
Filter cell without dividing wall
(for IFC measurement with optical filters)
Window
Pneumatic or pyroelectrical (solid-state) detector
VIS / UV semiconductor detector
Preamplifier
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
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2.1.1
MEASURING PRINCIPLE
IR MEASUREMENT
Opto - Pneumatic Measuring Principle
For measurement a heating coil in the light source generates the necessary infrared radiation (1).
This radiation passes through the chopper wheel [light chopper wheel (3)].
Due to the special shape of the chopper wheel, the IR radiation passes through a filter cell (5) and
alternatively reaches the measuring side (8) and reference side (9) of the analysis cell [(7)
separated in the middle into two halves by an internal separating wall] with equal intensity.
The filter cell (5) screens interfering radiation areas out of the radiation spectrum.
Behind this analysis cell the radiation passes a second filter cell (10) towards the gas detector (12),
which compares the IR radiation intenisities from measuring side and reference side and converts
it into an AC voltage signal.
The detector (Fig. 2-2) consists of a gas-filled absorption chamber and a compensation chamber
which are connected together via a flow channel.
In principle the detector is filled with the infrared active gas to be measured and is only sensitive
to this distinct gas with its characteristic absorption spectrum. The absorption chamber is sealed
with a window which are transparent for infrared radiation [usually CaF2 (Calcium fluoride)].
Absorption chamber
CaF2 window
Gas intake connection
Flow channel with
Microflow sensor
Compensation chamber
Fig. 2-2: Principle Design of Gas Detector
Emerson Process Management GmbH & Co. OHG
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MEASURING PRINCIPLE
IR MEASUREMENT
Instruction Manual
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When the IR radiation passes through the measurement side of the analysis cell into the detector,
a part of it is absorbed depending on gas concentration. Absorption chamber gas become colder,
gas pressure in the absorption chamber is reduced and some gas of compensation chamber
passes through the flow channel into the absorption chamber.
When the IR radiation passes through the reference side of the analysis cell into the detector, no
preabsorption occurs. Thus the gas inside the absorption chamber is heated, expands and some
of it passes through the flow channel into the compensation chamber.
The flow channel geometry is designed in such a way that it hardly impedes the gas flow by
restriction. Due to the radiation of chopper wheel, the different radiation intensities lead to
periodically repeated flow pulses within the detector.
The microflow sensor evaluates this flow and converts it into electrical voltages.
The electronics, which follow, evaluate the signals and convert them into the corresponding display
format.
In addition to simply light chopper, the chopper wheel has a special structure for measuring side
and reference side, that simulates an absorption in the analysis cell. This absorption signal is be
cut out of the normal measuring signal and is be used for automatically sensitivity control.The result
is a high long-term stability of sensitivity.
2.1.2
Interference Filter Correlation (IFC Principle)
The undivided analysis cell is alternately illuminated with filtered light concentrated in one of two
spectral separated wave length ranges. One of these two spectrally separated wave length bands
is chosen to coincide with an absorption band of the sample gas, and the other is chosen such
that none of the gas constituents expected to be encountered in practice absorbs anywhere within
the band.
The spectral transmittance curves of the interference filters used in the MLT and the spectral
absorption of the gases CO and CO2 are shown in Fig. 2-3. It can be seen that the absorption bands
of these gases each coincide with the passbands of one of the interference filters.
2-4
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
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MEASURING PRINCIPLE
IR MEASUREMENT
CO2
CO
75
60
45
54
Interference
Filter
36
CO
CO2
0
HC
18
Reference
Transmittance [%]
72
90
0
15
30
Transmittance [%]
90
Absorption band
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
Wave Length [nm]
Fig. 2-3: Absorption Bands of Sample Gases and Transmittance of the
Interference Filters used
The interference filter, used for generating a reference signal, has its passband in a spectral region
where none of these gases absorb. Most of the other gases of interest also do not absorb within
the passband of this reference filter.
The photometer assembly is similar to the assembly with “gas detector” (Fig. 2-1) with the
exception of the analysis cell. For analysis cell a non-sparated version is used. Behind this analysis
cell the radiation passes a second filter cell (10) to the pyroelectrical detector (12). In front of this
filter cell there are the individually optical filters.
The detector records the incoming IR radiation. This radiation will be reduced by the absorption
of the gas in the analysisi cell at this wavelength. The comparison between the measuring
wavelength and reference wavelength leads to an alternating voltage signal. This signal results
from cooling and heating the pyroelectrical material.
Emerson Process Management GmbH & Co. OHG
2-5
NGA 2000 MLT Hardware
MEASURING PRINCIPLE
UV MEASUREMENT
2.2
Instruction Manual
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07/2006
UV Measurement
The absorption measurement in the UV spectral range is based on the same principle as the IR
measurement (Fig. 2-1).
A glow-discharge lamp [2] is used as radiation source.
The UV radiation passes through the chopper [3] and a filter cell [6] into the dual-section analysis
cell [7].
A second filter cell [6] is installed after the analysis cell. The photodetector [13], which follows,
converts the pulsating radiation intensities from measuring [8] and reference side [9] of the analysis
cell into electrical voltages.
As the glow-discharge lamp needs a specific and as constant as possible temperature, the UV
lamp is thermostatted to about 55 °C for MLT 1 or the lamp is built-in into a thermostatted ambiente
(MLT 2/3/4).
2-6
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2.3
NGA 2000 MLT Hardware
MEASURING PRINCIPLE
OXYGEN MEASUREMENT
Oxygen Measurement
Depending on analyzer model different two measuring methods will be used.
2.3.1
Paramagnetic Measurement (PO2)
Oxygen measurement is based on the paramagnetical characteristics of Oxygen molecules:
Two nitrogen filled quartz spheres (N2 is not paramagnetic) are arranged in a dumbbell configuration
and, hinged to a platinum wire, placed inside a cell. Fixed to the wire a small mirror reflects a light
beam to a photo detector (fig. 2-4).
The measuring cell is placed inside an inhomogeneous magnetical field generated by a strong
permanent magnet of specific design.
Oxygen molecules within the sample gas now due to their paramagnetic characteristics are
deflected into the area of highest field strength.This generates different forces on both spheres and
the resulting torque turns dumbbell and mirror out of the rest position.This generates a photodetector
signal because the beam is deflected, too.
Initiated by the photodetector signal a preamplifier drives a compensation current through a loop
surrounding the dumbbell to turn back the dumbbell into the rest position by effect of a magnetic field
So the current compensating the torque affecting the dumbbell is a direct measure for the oxygen
concentration within the sample gas.
In addition to measuring cell, permanent magnet, electronics and enclosure the paramagnetic
oxygen detector contains a temperature sensor and a heating element to hold the detector at approx.
55 °C.
Several variations are available including corrosion resistant, solvent resistant and/or intrinsically
safe (for measuring flammable gases) versions.
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OXYGEN MEASUREMENT
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10
4
11
1
5
3
2
6
7
9
8
Fig. 2-4: Principle Construction of paramagnetic Analysis Cell
1
2
3
4
5
6
7
8
9
10
11
2-8
Permanentmagnet
Platinum wire
Mirror
Glass ball
Loop
Photodetector
Light source
Preamplifier
Display
Gas inlet
Gas outlet
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Instruction Manual
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MEASURING PRINCIPLE
OXYGEN MEASUREMENT
Solvent-resistant Paramagnetic Oxygen Cell
Solvents being tested: up to 20%
Name
Name
Name
Name
Name
Acetone
Acrolein
Argon
Aromatics
Butadiene
Butadiene-1
Butadiene-2
Methane
Ethane
Propane
n-Butane
Pentane
Hexane
Heptane
Methyl bromide
Iso propanol
Acetic acid
Ethanol
Methanol
Ethylene
Ethylene oxide
Acetylene
Butene
i Butyr acid
i-Butyr aldehyde
i-Propyl formiat
Formaldehyde
Carbon dioxide
Dimethyl sulfide
Dimethyl ether
Hydrogen
Propadiene
Cyclohexane
Cyclohexanone
Propylene
Propylene oxide
Toluene
Benzene
Vinyl acetate
Vinyl acetylene
Xylene
Methyl ethyl ketone
Methyl acetate
Methyl kaptane
Conditions:
The maximum concentrations need not to exceed 20% as single or sum values!
Assumption: a sample gas cooler lowers the dew point to approx. 5 °C.
A solvent resistant measuring cell is a consumable part!
Chlorine-resistant Paramagnetic Oxygen Cell
Components being tested:
Name
Chlorine (dry) up to 99%
Dichloroethyle up to 20%
Table 2-1: Solvent Resistant Sensor: Approved solvents
Table 2-2: Medium affected Materials within Paramagnetic Oxygen Sensor
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OXYGEN MEASUREMENT
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Special Hints on Paramagnetical Oxygen Sensors
The table below shows how accompanying gases interfere the paramagnetic oxygen measurement.
If the concentration of such gases is already given at time of enquiry this interference may be taken
into account during factory startup and thus minimized (option).
Table 2-3: Paramagnetic Oxygen Measurement,
cross interference by accompanying gases
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2.3.2
MEASURING PRINCIPLE
OXYGEN MEASUREMENT
Electrochemical Measurement (EO2)
This sensor uses the principle of galvanic cells, fig. 2-5 shows the design.
10
11
6
9
11
3
5
1
7
13
2
4
8
12
12
Fig. 2-5: Structure of electrochemical Oxygen Sensor
The electrochemical oxygen sensor‘s key components are a lead anode (1) and a gold cathode
(2) surrounded by a special acid electrolyte (3).
The gold electrode is integrated solid with the membrane,which is a non-porous fluororesin
membrane. Oxygen which barely diffuses through the membrane is electrochemically reduced on
the gold electrode.
The temperature compensating thermistor and adjusting resistance are connected between the
cathode and anode. The current generated by oxygen reduction is converted into a voltage by
these resistances.
The value of the current flowing to the thermistor and resistance varies in proportion to the oxygen
concentration of the measuring gases which contact the membrane. Therefore, the voltage at the
terminal of the resistances is used for the sensor output to measure the oxygen concentration.
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OXYGEN MEASUREMENT
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(Red)
(Black)
(11)
Thermistor (5)
Resistor (6)
(-)
(+)
GoldCathode (2)
LeadAnode (1)
O2 + 4 H+ + 4 e- → 2 H2O
2 Pb + 2 H2O → 2 PbO + 4 H+ + 4 e-
Electrolyte (3)
(ph 6)
Summary reaktion O2 + 2 Pb → 2 PbO
Fig. 2-6: Reaction of galvanic cell
In consequence of it‘s design the sensor‘s lifetime is limited and depends on theoretical designed
life and oxygen concentration. The sensor output can be taken as a rough criterion for end of
lifetime: The sensor is weared when the output in atmosphere is below 70 % of the initial output.
The period till this can be calculated by
Lifetime =
designed life (hours)
O2 concentration (%)
The sensor‘s designed life under constant conditions of 20 °C is approx. 900,000 hrs.
The lifetime at 21 % oxygen is then calculated to approx. 42,857 hrs, corresponding to approx.
5 years.
The given values are for reference only! The expected lifetime is greatly affected by the temperature
of the environment in which the sensor is used or stored. Increases or decreases in atmospheric
pressure have the same effect as that by increases or decreases in oxygen concentration (Operation at 40 °C halves lifetime).
Notes for analyzers with electrochemical EO2 cell!
This sensor is not suitable for anorganic gases containing chlorene or flourene!
In addition is not suitable for sample gases containing ozone, H 2S (> 100 ppm) or
NH3 (> 20 ppm).
Due to the measuring principle the electrochemical oxygen cell requires a minimum internal consumption
of oxygen (residual humidity avoids drying of the cell). Supplying cells continuously with dry sample gas
of low grade oxygen concentration or with sample gas free of oxygen could result in a reversible detuning
of O2 sensitivity. The output signal will become instable, but response time remains constant.
For correct measurement the cell needs continuously to be supplied with concentrations of at least 0.1 Vol.% O2 . We recommend to use the cells if need be in alternating mode, means to purge cells with conditioned
(not dried, but dust removed) ambient air when measurement pauses.
If it is necessary to interrupt oxygen supply for several hours or days, the cell has to regenerate (supply
cell for about one day with ambient air). Temporary flushing with nitrogen (N2) for less than 1 h (e.g. for
analyzer zeroing purpose) has no influence on measuring characteristics.
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2.3.3
MEASURING PRINCIPLE
OXYGEN MEASUREMENT
Trace Electrochemical Measurement (TEO2)
The MLT uses an electrochemical sensor technology to achieve the trace measurement of oxygen.
The principle structure of the oxygen sensor is shown in Fig. 2-7.
The sensor is a self contained disposable unit which requires no maintenance. The sensor utilizes
the principle of electrochemical reaction to generate a signal proportional to the oxygen
concentration in the sample.
The sensor consists of a cathode and anode which are in contact via a suitable electrolyte. The
sensor has a gas permeable membrane which covers the cathode allowing gas to pass into the
sensor while preventing liquid electrolyte from leaking out.
As the sample diffuses into the sensor, any oxygen present will dissolve in the electrolyte solution
and migrate to the surface of the cathode. The oxygen is reduced at the cathode. Simultaneously,
an oxidation reaction is occurring at the anode generating four electrons. These electrons flow to
the cathode to reduce the oxygen.
The representative half cell reactions are:
Cathode:
4e- + 2H2O + O2 → 4OH-
Anode:
4OH- + 2Pb → 2PbO + 2H2O + 4e-
The resultant overall cell reaction is:
2Pb + O2 → 2PbO
This flow of electrons constitutes an electric current which is directly proportional to the
concentration of oxygen present in the sample. In the absence of oxygen, no oxidation / reduction
reaction occurs and therefore no current is generated. This allows the sensor to have an absolute
zero.
Fig. 2-7: Structure of electrochemical Trace Oxygen Sensor
Emerson Process Management GmbH & Co. OHG
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MEASURING PRINCIPLE
OXYGEN MEASUREMENT
Instruction Manual
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Notes for analyzers with electrochemical TEO2 cell!
For TEO2 sensor please note that the gas inlet and outlet connections of the analyzer are sealed to prevent
exposure of the sensor to air.
Prolonged exposure of the sensor to air can cause extended start up time, reduction of performance or
damage to the sensor. Do not remove the sealing caps until all associated sample handling components
are installed and the instrument is fully ready for installation.
After replacement purge gas paths with inert gas (nitrogen (N2)) or sample gas as soon as possible to avoid
prolonged exposure of the sensor to high concentrations of oxygen.
The longer the sensor is exposed to air, the longer it will take for the sensor to recover to low ppm levels.
When installing a new sensor or starting the instrument for the first time, it may take as long as eight hours
for the analyzer to purge down to the lowest operating range.
Prolonged exposure of the sensor to air can cause extended start up time, reduction of performance or
damage to the sensor.
After initial startup or startup following a prolonged shutdown, the analyzer may require extended time to
recover to the range of measurement. Commonly, this is caused by the introduction of ambient air into the
sample and/or vent lines to the sensor. The presence of higher than normal levels of oxygen at the sensor
will cause the sensor electrolyte to become saturated with dissolved oxygen.When the instrument is placed
in operation, the sensor must now consume all excess dissolved oxygen above the desired measuring
level.
All analyzers with electrochemical TEO2 cell have to be purged with inert gas (Nitrogen, N2) prior to
disconnect the gas lines ! Then the gas line fittings have to be closed for transport or depositing analyzer.
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2.4
MEASURING PRINCIPLE
THERMAL CONDUCTIVITY
Thermal Conductivity
To measure gases like Hydrogen (H2), Argon (Ar) or Helium (He), the measurement method of
thermal conductivity (TC) will be used.
2.4.1
Sensor Design
A complete in glass encapulated temperature resistor is the basis of the measuring.
Four of this resisitors are arranged in a Wheatstone Bridge which is mounted into a block.The block
itself is thermostatted to supress influence of external temperature change.
2.4.2
Analysis Cell
Both the cell volume and the mass of its measurement resistor have been minimized in order to
obtain short response time.
The block contains two gas paths for sample and reference gas. Always two sensors are
located in the sample and the reference gas path.
Depending on application the reference side either is closed gastight and optional filled with
reference gas or it is opened and can be purged with reference gas (corresponding to the
respective measuring application).
Materials in contact with sample gas are aluminum, Viton, glass and gold in the standard type.
Measuring cells stand for corrosive applications, block and tubing are of SiO2 coated stainless steel
or from Hastelloy according to the measuring application.
Fig. 2-8: Sensor block (thermal conductivity detector TCD)
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MEASURING PRINCIPLE
THERMAL CONDUCTIVITY
2.4.3
90002929
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Measurement Method
The entire measurement cell is thermostated to a temperature of up to 75 °C. The four integral
temperature sensors are electrically heated to a higher temperature. Their temperatures, and thus
their electrical resistance, are dependent upon heat losses, which, in turn, result from heat
transport in the surrounding gas to colder chamber walls. For otherwise stable conditions, this heat
transport will be proportional to the thermal conductivity of the gas present between the sensor
and the chamber wall. Interconnecting the four sensors into Wheatstone bridge circuit (Fig. 2-9)
provides an electronic signal proportional to gas density. Electronic circuitry processes this signal
to obtain standardized signal amplitudes, and transmits these to both an indicator instrument and
to the signal output connector.
The internal gas paths are constructed to get a minimimized response time at minimized
dependence of the analytical signal upon sample gas flow rate.
Rreference
Rmeasure
Display
(Vol.-%)
Rmeasure
Rreference
DC voltage supply
Fig. 2-9: Measuring principle Thermal Conductivity Sensor (Wheatstone bridge)
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5.
INSTALLATION
GENERAL
Installation
This chapter describes in detail how to install the different analyzer variations.
5.1 General
Carefully examine the shipping carton and contents for signs of damage.
Immediately notify the shipping carrier if the carton or its contents are damaged.
Retain the carton and packing material until the instrument is operational.
ELECTRICAL SHOCK HAZARD!
Prior to connecting the analyzer to mains ensure all safety instructions
as given in the appropriate chapter at the beginning of this manual and
in the following analyzer refered sections are read and unterstood!
EXPLOSION HAZARD !
Do not operate nor install these instruments in hazardous areas
without additional measures!
Installation area has to be clean, free from
moisture, excessive vibration and frostprotected. Take care to meet the permissible
ambient temperatures as given in the
technical data section!
Instruments must not be exposed to direct
sunlight, fluorescent lamps nor sources of
heat.
Emerson Process Management GmbH & Co. OHG
For suppressed ranges of MLT 3 for gas
purity measurment we recommend installation between 20 °C and 30 °C ( 68 to 86 °F).
For outdoor installation it is recommended
to mount the instruments into a cabinet. At
least sheltering against rain is required.
Do not cover venting openings and take care
to mount the instrument in a distance to walls
not affecting venting.
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NGA 2000 MLT Hardware
INSTALLATION
GENERAL
Instruction Manual
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07/2006
To stay in compliance with regulations regarding electromagnetic compatibility it is recommended
to use only shielded cables, as optionally available from Emerson Process Management or
equivalent. Customer has to take care that the shield is connected in proper way. Shield and signal
connector enclosure need to be conductively connected, submin-d-plugs and sockets must be
screwed on the analyzer.
Using external submin-d-to-terminal adaptor elements (option) affects electromagnetic compatibility. In this case the customer has to take measures to stay in compliance and has to declare
conformity, when required by legislation (e.g. European EMC Directive).
The mains socket has to be nearby the power supply unit and easily
accessible! Disconnecting from mains requires unplugging the power plug!
To comply with the CE mark requirements, analzyers requiring DC power
supply must be supplied by a power supply unit of type UPS 01 T, DP 157,
SL5, SL10 (DP 157 rack installation only) or equivalent units. Equivalent
units must provide SELV output voltages!
Verify proper polarity when connecting DC 24 V operated analyzers !
5-2
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Instruction Manual
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5.1.1
NGA 2000 MLT Hardware
INSTALLATION
TRANSFER SAFETY LOCK OF MLT 1/ULCO OR MLT 2
Transfer Safety Lock of MLT 1/ULCO or MLT 2
TRANSFER SAFETY LOCK !
First of all operations unscrew transfer safety lock of MLT 1/ULCO or MLT 2 !
MLT 1/ULCO: Unscrew both knurled-head screws on bottom side of the housing
(Fig. 5-1a) ! For protection against loss screw the knurled-head screws into
the respective holders at housing rear side (Fig. 5-1b) !
MLT 2: Unscrew transfer safety lock of photometer sliding carriage (Fig. 51c)!
For transport of MLT the transfer safety lock absolutely have to be locked !
Front panel
Transfer safety lock (two knurled-head screws)
Fig. 5-1a: Transfer safety lock MLT-ULCO
(housing side view, detail sketch)
Fig. 5-1b: MLT 1, Rear panel (holder for safety lock)
Fig. 5-1c: MLT 2, Photometer safety lock
Emerson Process Management GmbH & Co. OHG
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INSTALLATION
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GAS CONDITIONING (SAMPLE HANDLING)
5.2
Gas Conditioning (Sample Handling)
To ensure trouble-free analyzer operation one has to attach great importance to gas conditioning:
All gases must be conditioned before supplying!
When supplying corrosive gases ensure that gas path components are not
affected!!
Flammable gases must not supplied without additional protective measures!
It is prohibited to supply explosive gases!
Furthermore the gases must be
❏
dry
❏
free of dust
❏
free of aggressive components affecting gas path materials (e.g. by corrosion).
If moisture can not be avoided take care that the gas‘ dew point is at least 10 °C below ambient
temperature to avoid condensation within the gas path.
Pressure and flow have to be within the limits given in the technical data section.
For suppressed ranges a constant pressure (+- 1 psig at 20 - 25 psig) and constant temperature
(20 - 30 °C, 68 - 86 °F) are very important.
Suitable gas conditionning hardware may be supplied or recommended for specific analytical
problems and operating conditions.
5-4
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5.2.1
NGA 2000 MLT Hardware
INSTALLATION
GAS CONDITIONING (SAMPLE HANDLING)
Fine Dust Filter (Option MLT 3)
MLT 3 can have two built-in fine dust filters (filter material PTFE, pore-size approx. 2 µm) optional.
5.2.2
Gas Sampling Pump (Option MLT 3)
Optional MLT 3 can be equipped with a gas sampling pump (pumping rate max. 2.5 l/min.).
Note!
For mobile application of MLT only !
Lifetime max. 5,000 running hours !
5.2.3
Pressure Sensor (Option)
It is possible to integrate a pressure sensor with a range of 800 - 1100 hPa.
The concentration values computed by the analyzer will then be corrected to reflect the barometric
pressure to eliminate faulty measurements due to changes in barometric pressure (see technical
data).
5.2.4
Gas Flow
The gas flow rate should be within the range 0.2 l/min to maxi. 1.5 l/min !
A constant flow rate of about 1 l/min is recommended.
The gas flow rate for MLT with paramagnetic oxygen sensor (PO2),
trace electrochemical oxygen sensor (TEO2) and for MLT 2 analyzers used
in hazardous area (Ex zones) is allowed to max. 1.0 l/min !
It is possible to integrate a flow sensor with a range 0 - 2 l/min ( 0.2 l/min to maxi. 1.5 l/min
recommended) ! In this case gas flow can be shown via operation front panel.
For MLT 3 flow control can be done with a screw driver via a optional integrated throttle into the
optional built-in dust filter.
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INSTALLATION
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GAS CONNECTIONS
5.3
Gas Connections
TOXIC GAS HAZARDS!
Take care that all external gas lines are connected as described and are
tight to avoid leaks!
Improperly connected gas lines may cause explosion or death!
Exhaust may contain hydrocarbon and other toxic components (e.g. carbon
monoxide)! Carbon monoxide is highly toxic and can cause headache,
nausea, loss of consciousness, and death. Avoid inhalation of exhaust!
Do not interchange gas inlet and outlet! All gases must be conditioned before
supplying! When supplying corrosive gases ensure that gas path components are
not affected!
Max. permissible gas pressure: 1,500 hPa, except instruments for gas purity
measurement (see chapter 5.4.3.1), with integrated valve blocks (see page 5-8)
and/or paramagnetic Oxygen sensor (see table page 20-4)!
Exhaust lines must be installed in a descending way, need to be pressureless,frostprotected and in compliance with applicable legislative requirements!
Take care of the safety instructions applicable for the gases (sample
gases and test gases) and for the gas bottles containing these gases!
Flammable gases must not supplied without additional protective
measures!
It is prohibited to supply explosive gases!
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INSTALLATION
GAS CONNECTIONS
The number of gas fittings as well as their assignment vary depending on analyzer model and
selected options.
All gas fittings are labeled and are normally located at the analyzers rear panel, in case of MLT
2 and CAT 100 they are located at the bottom side.
When it is necessary to open gas paths seal the analyzer‘s gas fittings by using PVC caps to avoid
pollution of the internal gas path by moisture, dust, etc.
The analyzer should be mounted near the sample source to minimize sample transport time. A
sample pump may be used to descrease response time, whereat the analyzer is either operated
in bypass mode or protected by an overpressure valve against too high flow and pressure (see
fig. 5-2).
Exhaust
MLT
Exhaust
Overpressure valve
Filter
Flow meter
Gas sampling pump
Fig. 5-2: MLT, Bypass installation
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GAS CONNECTIONS
5.3.1
Internal Solenoid Valve Block (Option for MLT 1/CAT 200)
For operation with optional solenoid valves, the following indications have to be considered:
Operation with solenoid valves is not possible for 2 - channel analyzer with parallel gas paths.
Supply overpressure for all gases is limited to 50 to 500 hPa when an analyzer is equipped with
an internal solenoid valve block. .
5.3.2
Purge Gas Connections
The analyzers may optionally provide a gas fitting for purging the enclosure (e.g. with nitrogen)
when measuring
❏
low CO2 concentrations:
N2 minimizes interference by ambient air
❏
flammable gases:
N2 gives additional safety in the event of leakage inside the instrument
❏
aggressive components:
purging with air gives additional safety in the event of leakage inside the instrument.
Purge medium must be dry, clean and free of corrosive and solvent
components!
Purging can be accomplished with any inert gas including "instrument quality" air, nitrogen, or
argon which contains no more than trace amounts of a combustible vapor. Compressed air is the
most common and practical purging medium. Bottled nitrogen is uitilized most frequently in
isolated places where no compressed air source is available. Personal protection has to be taken
into consideration in case of N2 purge in closed rooms, e.g. containers.
Purge gas must be conditioned:
Take care for purge gas temperature: Purge gas should have the same temperature
as ambient temperature of the analyzer but NOT below 20 °C and above 35 °C!
Otherwise it must be cooled or warmed up before let in into the instrument!
Purge gas should be instrumental / synthetic air (free of oil, no corrosive, toxic
or flammable gas componets) or nitrogen depending on application.
5-8
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 1
5.4
Analyzer Specific Instructions
5.4.1
MLT 1
5.4.1.1
MLT 1, platform mounting only
MLT 1 analyzer module housing is available for platform mounting (built-in into a NGA platform)
only (type M).
These analyzers need DC 24 V power supply and netwotk connection utilizing platform. Built-in
the modul into platform housing correctly (see platform manual).
Switching On the module will be done via Switching On the platform.
Network
Output signals and data are accessible at the rear panel via submin-d connectors. Depending on
analzyer variation not all signals are available. For information about pin-assignments see section
21.
Network
ME -
+
CAUTION !
Use either
OR
front
rear
supply
24 V dc
IN
Fig. 5-3: MLT 1 analysis module (platform mounting), front panel, front view
Emerson Process Management GmbH & Co. OHG
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 1
5.4.1.2
Instruction Manual
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07/2006
MLT 1, external installation and 1/2-19" Housing
MLT 1 analyzer module housing is available for platform mounting (built-in into a NGA platform)
or for external installation (type A).
The analyzer variation MLT 1 configured as tabletop analyzer (type T) provide a handle attached
to a front panel frame. The instrument is intended for horizontal or slightly angular (utilizing the
handle as support) orientation during operation.
Without front panel frame and handle the analyzers may be mounted into a rack (rack mount
version, type R). Four screws located at the front panel are used to fix the analyzer in the rack.
These analyzers need DC 24 V power supply utilizing an external power supply unit. They provide
a three pole power input connector located at the rear panel.
It is recommended to use original Emerson Process Management power
supply units and supply cords. If a supplement is used take care of correct
pin assignment, as given on the analyzer´s rear panel!
The analyzers do not provide a power switch and are operable when connected to power.
For analyzer module (A) [external installation or platform mounting] it is
not allowed to supply the module from front and rear simultaneously !
For external installation connections on frontside absolutely have to closed
with the blind plate delivered from our factory to be in agreement with the
CE conformity.!
Output signals and data are accessible at the rear panel via submin-d connectors. Depending on
analzyer variation not all signals are available. For information about pin-assignments see section
21.
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 1
Network connection (RJ 45 socket)
[not for platform mounting module]
optional PCBs [SIO / DIO e. g.]
Gas connections
Input 24 V dc [not for platform mounting module]
Fig. 5-4: MLT 1, standard gas connections
Depending on analyzer version the following gas connections are installed:
in = Gas inlet
Channel 1 = measuring channel 1
Channel 3 = measuring channel 3
out = Gas outlet
Channel 2 = measuring channel 2
reference = Reference gas (Differential measurement)
purge = purge gas (housing)
Note!
Purge and reference option combination is only available with two channel
analyzer.
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ANALYZER SPECIFIC INSTRUCTIONS: MLT 1
Solenoid valve block
Fig. 5-5: MLT 1, gas connections with solenoid valve option
V 1 = Span gas 1
V 2 = Span gas 2
V 3 = Sample gas
V 4 = Zero gas
out = Gas outlet (to IN CH1)*
IN CH1 = Gas input (from OUT of soelnoid valve block)*
OUT CH1 = Gas exhaust
* Standard.
Option: Valve block output may be sued for external sample handling system (special configuration)
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5.4.2
NGA 2000 MLT Hardware
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
MLT 2 (Field Housing)
The MLT 2 variation is designed for wall mounting and is available in two different versions: One
version, equipped with standard front panel is intended to be installed at protected locations
whereas the version with impact tested magnetically operated front panel may be outdoor
installed.
In any case the restrictions for ambient temperatures have to be taken into account, see section
technical data!
This current instruction manual covers using the MLT 2 analyzer for general
purpose applications only!
Installation, startup and maintenance for operation in hazardous areas are
described in detail in a separate instruction manual, shipped together with
each such analyzer and are not subject of the current instruction manual!
5.4.2.1
Wall Mounting
This housing is designed for wall mounting.
Utilizing the four mounting brackets at the analyzer‘s rear side the instrument can be wall mounted.
For fastening points see Fig. 5-6 please.
MLT 2 -- HEAVY INSTRUMENTS !
The analyzer variations MLT 2 intended to be wall mounted and/or outdoor
installed weigh up to 35 kg, depending on included options!
Use two person and/or suitable tools for transportation and lifting these
instruments!
Take care to use anchors and bolts specified to be used for the weight of
the units!
Take care the wall or stand the unit is intended to be installed at is solid
and stable to hold the units!
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ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
550
492
300
332
approx. 355
10
18
Glands
(connection cables)
18
Fig. 5-6a: Dimensional sketch / Drill drawing MLT 2 Standard version [all dimensions in mm]
550
492
approx. 355
603
635
300
38 38 38
10
glands
(connection cables)
27
18
43
18
280
16
Gas connections
Fig. 5-6b: Dimensional sketch / Drill drawing MLT 2 Dual housing version [all dimensions in mm]
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5.4.2.2
NGA 2000 MLT Hardware
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
Electrical Connections
ELECTRICAL SHOCK HAZARD!
Installation and connecting mains and signal cables are subject to qualified
personnel only taking into account all applicable standards and legislative
requirements!
Failure to follow may cause warranty invalidation, property damage and/or
personal injury or death! Mains and signal cables need to be connected to
internal srew terminals requiring to work at open housing near life parts!
Installation of this instrument is subject to qualified personnel only, familiar
with the resulting potential risks!
MLT 2 gas analyzers do not provide a mains switch! A mains switch or
circuit breaker has to be provided in the building installation. This switch
has to be installed near by analyzer, must be easily operator accessible and
has to be assigned as disconnector for the analyzer.
The analyzer provides a protective earth terminal. To prevent electrical shock
hazards the instrument must be connected to a protective earth. Therefore
the instrument has to be connected to mains by using a three wire mains
cable with earth conductor!
Any interruption of the earth connector inside or outside the instrument or
disconnecting the earth terminal may cause potential electrical shock
hazzard!
The analyzer does not provide a mains switch and is operable when
connected to power.
❏
❏
❏
❏
Cables entering the analyzer housing should be kept as short as possible inside the
enclosure.
The cable glands are suitable to fix cables with outer diameters of 7 to 12 mm. Special
adaptors are available for fixing other or multiple cables in one gland.
Mains terminals are designed to connect wires up to a cross section of up to 2,5 mm².
To ensure electromagnetic compatibility it is recommended to use shielded signal cables
only!
Take into account the installation instructions for cable glands (page 5-19)!
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ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
a)
Mains Supply
The analyzer provides an integrated multi range power supply unit (either power supply of type SL5
or of type SL10) with voltage selector switch, to be set to the appropriate range to meet the nominal
voltage (115 V / 230 V) at installation site. The switch is accessible through a safety barrier when
the analyzer‘s front door is open.
❍
Opening of housing (front panel) (see section 15.2).
❍
Insert mains cord into the housing utilizing the cable gland marked in fig. 5-7.
Connect L and N to powerline filter (Fig. 5-9) via plug jacket (6,3x0,8 mm).
Connect PE via ring cable system to left ground conductor pin (Fig. 5-9).
Alternatively the mains line is connected via terminal strips (Fig. 5-9).
Front panel
Cable glands
of data lines
Cable gland
of mains line
Wall mounting
holder
Gas connections
Fig. 5-7: MLT 2, PG fittings for lines (side view from left)
b)
optional Data Lines
This are analog outputs, digital inputs/outputs and serial interfaces.
Signal and data lines have to be connected to adaptor elements located at the analyzer‘s inner
left side.
These adaptors provide a submin-d connector (instrument side) and screw terminals (out going
side) to connect external cables. Inside the analyzer signal distribution utilizes ribbon cable
connections between adaptors and PCBs submin-d connectors. Adaptor terminals are one-to-one
connected to the submin-d pin of same designation: Terminal 1 is connected to pin 1, terminal 2
to pin 2 etc. (section21).
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
Cables for external data processing must be double insulated for mains
voltage when used inside the instrument!
If double insulation not possible signal cables inside the analyzer must be
installed in a way that a distance of at least 5 mm is ensured permanently
(e.g. by utilizing cable ties).
The number of installed adaptor elements variies depending on analyzer configuration.
For detailed pin designations see section 21.
❍
Opening of housing (front panel) (see section 15.2).
❍
Take lines via cable glands (Fig. 5-7) inside the housing.
Connection is to be done to the respective adaptor elements (Fig. 5-8 and 5-9).
All unused cable glands need to be sealed using a sealing plug (part no.
ETC00791 or similiar, see Fig. 5-11).
Unused cable gland openings in the enclosure need to be covered using a
special screw (part no. ETC 000790 or similiar, see Fig. 5-11).
Adaptor element option SIO:
analog outputs
X11
X9
Adaptor element option SIO:
Option serial interface /
Relay contacts (NAMUR)
X10
Serial out
12
1234
F100.1
F100.2
11
Power supply(s)
Adaptor element Option DIO:
digital inputs/outputs
Fig. 5-8: MLT 2, Data line connections
Inside view from front (detail, without front door)
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GAS CONNECTIONS
ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
Alternatively terminal strips
(connection of mains line)
Powerline filter
(connection of L and N of mains line)
Analog out
Adaptor element option SIO:
analog outputs
PE
N
Digital out
L
N L PE
Adaptor element Option DIO:
digital inputs/outputs
Ground conductor pin
(PE mains line)
Fig. 5-9: MLT 2, Connection data lines / mains line
(inside view, left side panel)
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c)
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
Cable Gland Assembly Instruction for Shielded Cables
1. Strip the cable insulation.
2. Uncover the shielding
3. Feed cable through gland nut and into fixing element.
4. Put the shielding net over the element the way that it covers the o-ring 2 mm.
5. Stick the fixing element into the neck and fix the gland.
Fig. 5-10: Cable Gland Assembly Instruction for Shielded Cables
ETC00791
Cable gland sealing plug
ETC00790
Cable gland allen screw sealing plug
Fig. 5-11: Cable gland sealing plug / Cable gland allen screw sealing plug
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ANALYZER SPECIFIC INSTRUCTIONS: MLT 2
Gas Connections
Wall mounting holder
d)
Gas connections
Fig. 5-12a: MLT 2, gas connections
1
2
3
4
Fig. 5-12b: MLT 2, Gas fittings at analyzer’s bottom side
(other configurations possible, see labels at instrument)
1
2
3
4
5 - 20
Gas inlet channel 1
Gas inlet channel 2
Gas outlet channel 1
Gas outlet channel 2
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
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5.4.3
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 3
MLT 3
All components of analyzers or analyzer modules are incorporated into a 1/1 19" housing.
The housings are available as rack mounting (R) or as table-top (T) versions. For analyzer modules
there is mounted a blind plate instead of an operation front panel.
The equipment has an internal power supply with “autoranging” for operating voltages of 230 V
AC or 120 V AC resp., 47-63 Hz.
The analyzers do not provide a power switch and are operable when connected to power.
Output signals and data are accessible at the rear panel via submin-d connectors. Depending on
analzyer variation not all signals are available. For information about pin-assignments see section
21.
internal power supply
(UPS 01 T)
Network
Gas connections
IN
Ch 1
OUT
IN
Ch 2
OUT
optional PCBs [SIO / DIO e. g.]
Input
230 / 120 V ac
Fig. 5-13: MLT 3 (standard version), gas connections and voltage supply
IN = Gas inlet
OUT = Gas outlet (exhaust)
CH 1 = Channel 1
CH 2 = Channel 2
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ANALYZER SPECIFIC INSTRUCTIONS: MLT 3
5.4.3.1
MLT 3 for gas purity measurement
The necessary gas connections are marked analyzer specific.
Different possibilities of internal layout and external tubing are shown in Fig. 1-24, depending on
instrument specific features.
An constant input pressure (± 70 hPa or ±1 psig) between 1,500 to 3,000 hPa
(20 to 43 psig) is necessary for sample gas as well as for zero gas and span gas
because of internal pressure regulator.
!
230/120 V
50/60 Hz
max. 240 VA
NETWORK
DIGITAL I/O
Sub.-min. D, 9 pole
(connection to PCB “SIO”)
ANALOG I/O
SERIAL I/O
Sub.-min. D, 9 pole
(to Solenoid Valve Block Option)
Span gas
Exhaust
Sample gas
Zero gas
PCB “SIO”
Input 230/120 V ac
(PS UPS 01 T)
Solenoid Valve Block (Option)
Gas connections
(analyzer specific)
Fig. 5-14: MLT 3 (gas purity measurement), Rear view
a)
Instrument with manual 4/2-way-valve
The connection of sample gas, zero gas and span gas will be done to the gas connections at the
rear side of the instrument (Fig. 5-14). The gases will be lead internally via stainless steel tubes
to the 4/2-way-valve (see Fig. 1-30c, too).
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b)
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 3
Instrument with solenoid valve block
The connection of sample gas, zero gas and span gas will be done to the solenoid valve block at
the rear side of the instrument (Fig. 5-14 and 5-15). The common exhaust of solenoid valve block
is be lead to the real sample gas inlet of the instrument via stainless steel tube (see Fig. 1-30a).
span gas
sample gas
exhaust
(common)
zero gas
Fig. 5-15: Solenoid valve block MLT 3 (gas purity measurement) (side view)
c)
Instrument with quick shutoff connector
The connection of sample gas will be done to the quick shutoff connector at the front side of the
instrument (Fig. 5-16). The sample gas will be lead internally via stainless steel tube either to the
4/2-way-valve or to a gas outlet at the rear side of instrument and then to the sample gas inlet of
the solenoid valve block (see Fig. 1-30b, too).
All other gas connections will be done as described in section 5.3 and 1.8.
F1
F2
F3
F4
NGA 2000
Rosemount Analytical
Flow meter
Quick shutoff connector
(sample ges input, option)
Manual 4/2-way-valve
(option)
F5
Operation front panel
Fig. 5-16: MLT 3 (gas purity measurement), front view
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ANALYZER SPECIFIC INSTRUCTIONS: MLT 4
5.4.4
MLT 4
All components of analyzers or analyzer modules are incorporated into a 1/1 19" housing.
The housings are available as rack mounting (R) or as table-top (T) versions. For analyzer modules
there is mounted a blind plate instead of an operation front panel.
These analyzers need DC 24 V power supply utilizing an external power supply unit. They provide
a three pole power input connector located at the rear panel.
It is recommended to use original Emerson Process Management power
supply units and supply cords. If a supplement is used take care of correct
pin assignment, as given on the analyzer´s rear panel!
The analyzers do not provide a power switch and are operable when connected to power.
For analyzer module (A) [external installation or platform mounting] it is
not allowed to supply the module from front and rear simultaneously !
For external installation connections on frontside absolutely have to closed
with the blind plate delivered from our factory to be in agreement with the
CE conformity.!
Output signals and data are accessible at the rear panel via submin-d connectors. Depending on
analzyer variation not all signals are available. For information about pin-assignments see section
21.
Network
optional PCBs
[SIO / DIO e. g.]
1
IN
OUT
Plug 24 V dc
Fig. 5-17: MLT 4, Voltage supply
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: MLT 4
1
IN
OUT
3/Purge
3/Purge
IN
OUT
2
IN
OUT
Fig. 5-18: MLT 4, gas connections
in = Gas inlet
out = Gas outlet
1 = measuring channel 1
2 = measuring channel 2
3 = measuring channel 3
Purge = purge gas (housing)
Note!
Purge option combination is only available with one or two channel analyzer.
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: CAT 200
5.4.5
Instruction Manual
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CAT 200
CAT 100 analyzers are designed for wall mounting and intended to be outdoor installed
taking into account the ambient temperature limits as given in the technical data section of
this manual.
.
This current instruction manual covers using the CAT 200 analyzer for
general purpose applications only!
Installation, startup and maintenance for operation in hazardous areas are
described in detail in a separate instruction manual, shipped together with
each such analyzer and are not subject of the current instruction manual!
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5.4.5.1
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: CAT 200
Wall Mounting
Mount CAT 200 analyzers to a wall or stand by utilizing 4 through holes of ø 15.9 mm (0.63 in) each.
CAT 200 -- HEAVY INSTRUMENTS !
The analyzer variations CAT 200 intended to be wall mounted and/or
outdoor installed weigh up to 70 kg, depending on included options!
Use two person and/or suitable tools for transportation and lifting these
instruments!
Take care to use anchors and bolts specified to be used for the weight of
the units!
Take care the wall or stand the unit is intended to be installed at is solid
and stable to hold the units!
(14.3)
(27)
(0.85)
(0
.6
3)
(13)
(25.4)
Fig. 5-19: Drill drawing CAT 200 [all dimensions in mm (Inch)]
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: CAT 200
5.4.5.2
Instruction Manual
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Electrical Connections
ELECTRICAL SHOCK HAZARD!
Installation and connecting mains and signal cables are subject to qualified
personnel only taking into account all applicable standards and legislative
requirements!
Failure to follow may cause warranty invalidation, property damage and/or
personal injury or death! Mains and signal cables need to be connected to
internal srew terminals requiring to work at open housing near life parts!
Installation of this instrument is subject to qualified personnel only, familiar
with the resulting potential risks!
CAT 200 gas analyzers do not provide a mains switch! A mains switch or
circuit breaker has to be provided in the building installation. This switch
has to be installed near by analyzer, must be easily operator accessible and
has to be assigned as disconnector for the analyzer.
The junction box must be protected by fuse supply (10 A fuse) which has a
breaking capacity adjusted to the short circuit of the equipment.
The analyzer provides a protective earth terminal. To prevent electrical shock
hazards the instrument must be connected to a protective earth. Therefore
the instrument has to be connected to mains by using a three wire mains
cable with earth conductor!
Any interruption of the earth connector inside or outside the instrument or
disconnecting the earth terminal may cause potential electrical shock
hazzard!
The analyzer does not provide a mains switch and is operable when
connected to power.
To ensure protection against water and dust use cable glands with minimum
IP 65 classification!
The junction box provides at its left side one threat M20x1.5 and at its right
side up to three threats M16x1.5 for installing cable glands.
The left gland is the mains power cord entry, the right side glands for signal
cables.
Not used threats must be sealed by approved sealing plugs (factory delivery
condition).
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INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: CAT 200
❏
This analyzer model is supplied by an internatl wide range power supply, automatically
adapting to the voltage at site.
❏
All cables (mains power cord and signal cables) are connected via screw terminals located
inside an junction box right above the analyzer dome.
❏
See the label on the junction box cover for detailed terminal assignments.
❏
Cables entering the junction box should be kept as short as possible when inside the box.
❏
Mains terminals are capable to connect cables up to 4 mm2 cross section.
EXPLOSION HAZARD!
Instruments covered by an approval for hazardous areas (identifiable by a
term „ATEX" on the nameplate label) MUST be equipped with cable glands,
marked EEx e and ATEX!
This applies, too, when the instrument currently is NOT installed in a
hazardous area!
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ANALYZER SPECIFIC INSTRUCTIONS: CAT 200
1
1
24
5
1
1
2
3
4
24
5
6
7
8
Fig. 5-20: CAT 200, Junction box, interior view
1
2
3
4
Threat for mains cord cable gland
Mains screw terminals
Mains EMC filter
Flameproof feed thru, mains
5
6
7
8
Flameproof feed thru, signals (3x)
Upper signal screw terminals (24)
Lower signal screw terminals (24)
Threats for signal cables cable glands (3x)
Note!
For information about terminal assignments see section 21.5).
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5.4.5.3
INSTALLATION
ANALYZER SPECIFIC INSTRUCTIONS: CAT 200
Gas Connections
1
2
3
5
8
6
4
7
9
10
11
Fig. 5-21: CAT 200, Analyzer’s bottom view at gas fittings
Gas Fitting Assignment
Analyzer Configuration
Serial Tubing
Parallel tubing
1 - Gas in
2 - Gas out
1 - Gas in (ch 1)
2 - Gas out (ch 1) 3 - Gas in (ch 2)
4 - Gas out (ch 2)
5 - Gas in (ch 3)
6 - Gas out (ch 3) 7 - Gas in (ch 4)
8 - Gas out (ch 4)
2 - Gas out
(Sample, zero & 5 - Span gas 1 in 6 - Span gas 2 in
span gas)*
7 - Sample gas in
Serial tubing with 1
solenoid valve block (option)
1 - Gas in (ch 1)
Parallel tubing with 2
solenoid valve blocks (option) 5 - Span gas 1 in
8 - Zero gas in
2 - Gas out (ch 1) 3 - Gas in (ch 2)
4 - Gas out (ch 2)
6 - Span gas 2 in 8 - Zero gas 1 in
10 - Zero gas 2 in
1 - Gas in (ch 1)
Parallel tubing with differential
measurement (option)
5 - Gas in (ref 1)
2 - Gas out (ch 1) 3 - Gas in (ch 2)
4 - Gas out (ch 2)
CAT housing purge (option)
8 - Purge gas out
7 - Purge gas in
6 - Gas out (ref 1)
7 - Gas in (ref 2)1 or 8 - Gas out (ref 2)1 or
10 - Gas in (ref 2)2 11 - Gas out (ref 2)2
* Standard Gas out = gas exhaust, valve block output internally connected to MLT gas input.
Option: Valve block output may be used for external sample handling system (special configuration).
1
2
without housing purge
with housing purge
Table 5-1: CAT 200, Assignment of gas fittings
Note!
Reference option is only available with single or two channel analyzer.
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INSTALLATION
WIRING SIGNAL TERMINALS: ELECTRICAL CONNECTIONS IN GENERAL
5.5
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Wiring Signal Terminals
Emerson Process Managament has taken any effort during the MLT series development process
to ensure electromagnetically compatibility (EMC; concerning emission and immunity), stated by
EMC measurements according EN 61326.
Nevertheless EMC is not only influenced by the instrument‘s design, but widely by the installation
procedure at site, too.Take care of the following sections and measures described within to ensure
safe and trouble-free analyzer operation!
5.5.1
Electrical Connections in General
To minimize electromagnetically interferences by the analyzer‘s environment it is necessary to
carefully execute all electrical connections between the analyzer and other instruments:
❏
It is recommended to use shielded cables for signal lines, only!
Shield has to be connected to the housing at both ends of one connection (fig. 5-22).
Fig. 5-22:Shielded Signal Cable,
shield connected at both ends
Local on-site conditions usually differ from test conditions and may require special measures. This
is when strong fields are expected, potentially generating high parasitic currents on the cable shield
. Such currents result in differences of potential between connected housings.
Two possible measures to avoid parasitic currents are described, whereat installation personnel
familiar with EMC problems has to decide about the use of either measure:
❏
Shield is connected at one side of the cable only (recommended to the analyzer‘s housing):
Protection against external distrubances is increased but influence by parasitic currents is
prevented due to opening the ground loop.
Fig. 5-23: Shielded Signal Cable,
shield connected at one end
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❏
NGA 2000 MLT Hardware
INSTALLATION
WIRING SIGNAL TERMINALS: ELECTRICAL CONNECTIONS IN GENERAL
Using double-shielded cables:
In this case one shield is connected to the analyzer‘s housing while the other shield is
connected to the external equipment.
This gives an advantage when both instruments are supplied by different supply networks
(e.g. when installed in different buildings).
This measure is more costlybut offers best immunity against distrubances from outer fields
and from parasitic currents.
Fig. 5-24:Double-shielded Signal Cable,
shields connected at both sides
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INSTALLATION
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WIRING SIGNAL TERMINALS: WIRING INDUCTIVE LOADS
5.5.2
Wiring Inductive Loads
Switching inductive loads is a standard application generating electromagnetic disturbances:
The moment an inductive load (e.g. relay, valve, etc.) is switched off, it‘s magnetic field defies the
change of current flow, generating high voltages (up to hundrets of volts) at the coil‘s contacts. This
impulse reproduces on connected wires and may influence electrical equipment nearby or destroy
signal inputs and/or outputs on electronic boards.
A simple measure helps to avoid such effects:
❏
Shunt a silicon diode to the inductive load‘s contacts shorting the voltage impulse just at it‘s
source.
The diode‘s cathode needs to be connected to the positive side of the coil, the anode to the
negative side (fig. 5-25).
Suitable filter components are available on request for standard valves.
Fig. 5-25: Suppressor Diode for Inductive Loads
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5.5.3
INSTALLATION
WIRING SIGNAL TERMINALS: DRIVING MULTIPLE LOADS
Driving Multiple Loads
Another popular application is driving multiple loads within one system by multiple outputs,
whereat the supply voltage for the loads is taken from one common source.
To minimize load switching generated disturbances special care is required when wiring the
system:
❏
AVOID to „serial" wire the loads‘ power supplies at which the power supply line starts at the
source and successively connects all loads (fig. 5-26):
Fig. 5-26: ”Serial” Wiring
❏
It‘s better to apply „parallel" wiring at which each single load is supplied by a separate
connection starting from a distribution point: Both „+" and „-" wire of any load are run together,
starting at the point of distribution and ending at the load (see fig. 5-27). The effect of
minimizing disturbances is intensified when using two-wire drilled cables.
Fig. 5-27: Running Supply Lines "Parallel”
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INSTALLATION
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WIRING SIGNAL TERMINALS: DRIVING HIGH CURRENT LOADS
5.5.4
Driving High Current Loads
Loads with currents exceeding the rated currents specified for MLT analyzers outputs must not be
driven directly by digital or relay outputs.
Driving such loads requires external relays acting as decoupling devices: The MLT output drives
the external relay, which itself drives the load.
It is recommended to use separate supplies for analyzer and high current loads to minimize
interferences (fig. 5-28).
As described before using suppressor diodes for inductive loads is strongly recommended!
Load
External relay
Fig. 5-28: Driving High Current Loads
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6.
NGA 2000 MLT Hardware
SWITCHING ON
Switching On
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Once the instrument has been correctly assembled and installed in accordance with the general
instructions given in section 5., the equipment is ready for operation.
The equipment is switched on by providing the required voltage.
Note (for MLT analyzers only)!
The analyzer must be switched on only after switching on all modules
connected to the network. Be sure to observe the network termination
(section 1.10) !
Upon switching on, the analyzer will perform a self-diagnostic test routine, followed by the binding
of all connected analyzer modules.
For additional informations about display messages during start-up see respective software
manual.
Note!
Analyzer needs 15 to 50 minutes to warm-up after switch on, depending on
the installed detectors and themostatting temperature !
For MLT 3 for gas purity measurment with suppressed ranges of 98 - 100 %
CO2 we recommend to warm-up the analyzer over night and start calibration
next morning to achieve best results!
Note (for analyzers with TEO2 sensors only)!
When installing a new sensor or starting the instrument for the first time, it
may take as long as eight hours for the analyzer to purge down to the
lowest operating range.
Emerson Process Management GmbH & Co. OHG
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SWITCHING ON
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NGA 2000 MLT Hardware
MEASUREMENT/CALIBRATION//SWITCHING OFF
MEASUREMENT
7.
Measurement / Calibration / Switching Off
7.1
Measurement
The primary step in the measurement of the concentration of a gas component is the admission
of sample gas to the analyzer.
Note!
Take care for the start-up procedure before measurement (chapter 6.)!
❍
Admit sample gas at the respective gas inlet fitting (see Item 5.).
Note!
For MLT 3 for gas purity measurement the sample gas need to be
conditionned to the ambient temperature of the analyzer!
❍
Set the gas flow rate to allowable rate.
Before starting an analysis, however, the following should be performed:
❏
❏
entry of the desired MLT parameters,
calibration of the MLT (see Item 7.2).
Note for analyzers with electrochemical EO2 cell!
Depending on measuring principle the electrochemical EO2 cell needs a minimum internal consumption
of oxygen (residual humidity avoids drying of the cell). Admit cells continuously with sample gas of low
grade oxygen concentration or with oxygenfree sample gas could result a reversible detuning of O2
sensitivity. The output signal will become instabil.
For correct measurement the cells have to admit with a O2 concentration of at least 0.1 Vol.-%.
We recommend to use the cells in intervall measurement [purge cells with conditioned (dust removal but
no drying) ambient air at measurement breaks].
If it is necessary to interrupt oxygen supply for several hours or days, the cell have to regenerate (supply
cell for about one day with ambient air). Temporary flushing with nitrogen (N2) for less than 1 h (e.g. analyzer
zeroing) will have no influence to measuring value.
Note for analyzers with electrochemical TEO2 cell!
For TEO2 sensor please note that the gas inlet and outlet connections of the analyzer are sealed to prevent
exposure of the sensor to air.
Prolonged exposure of the sensor to air can cause extended start up time, reduction of performance or
damage to the sensor. Do not remove the sealing caps until all associated sample handling components
are installed and the instrument is fully ready for installation.
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MEASUREMENT/CALIBRATION//SWITCHING OFF
CALIBRATION
7.2
Instruction Manual
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Calibration
To insure correct measurement results, zeroing and spanning should be carried out once a week.
Other intervals are possible.
The zero-level must always first be set before any other calibrations are attempted.
MLT 1 ULCO and MLT 3 for gas purity measurement have to be calibrated on a
daily basis! Other far longer intervals are application dependent (see TÜV
suitability test report with prolonged calibrating interval)!
For the calibration procedure the required test gases have to be fed to the analyzer through the
respective gas inlets (cf. section 5.3) with a no - back - pressure gas flow rate of about 1 l/min (the
same as with sample gas) !
An constant input pressure (± 70 hPa or ±1 psig) between 1,500 to 3,000 hPa
(20 to 43 psig) is necessary for sample gas as well as for zero gas and span gas
because of internal pressure regulator (different input pressures look at order
confirmation).
❏
For correct adjustment and/or “system calibration” of the analyzer please look at MLT
software manual !
General notes!
Each measuring channel of MLT can be equipped with up to four various measurement ranges.
There is the possibility to adjust the sensitivity (span) of the measurement ranges together (standard) or
separately.
The zero-gas adjustment is carried out together for all measurement ranges of a measuring channel. Offset setting (value differing from zero i. e.) can be provided if a corresponding zero gas requires this (e.g.
substitute gas instead of zero gas with nitrogen).
The span adjustment can be carried out at common sizing of all measurement ranges in the largest
measurement range. Due to a common linearization (small measurement ranges represent merely a
range of the complete) for all measurement ranges as standard (divergent procedures look at order
confirmation) the specifications for the linearity deviation are valid for all measurement ranges, i. e. for the
smallest full-scale range. The calibration deviation to be expected depends on the quality of the test gas
and affects all measurement ranges in a similar manner.
Certain applications and legal handicaps can require adjustment of separate measurement ranges,
though!
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MEASUREMENT/CALIBRATION//SWITCHING OFF
CALIBRATION
7.2.1
Test Gases
7.2.1.1
Zero Gas
For zeroing, the analyzer has to be purged with nitrogen (N2) or adequate zero gas [e. g. synth. air
or conditionned air (but not for O2 - measurement)]
.
7.2.1.2
Span Gas
The calibration of all another analyzers should be done with pure span gases in order to prevent
interferences between the gases (e. g., CO2 and CO) measured by the analyzer, using test gas
mixtures.
The concentration range of the span gas has to be in a range of 80 - 100 % (70 - 110 %) of the
full - scale range of the respective measuring channel. For lower span gas concentrations the
measuring accuracy could be lower for sample gas concentrations, which are higher than the span
gas concentration! For test gas concentration see certification of the test gas bottles.
Spanning for oxygen measurement can be done using conditionned ambient air as span gas, if
the oxygen concentration is known and constant.
To calibrate the MLT 1 ULCO internal H2O channel (0-3 Vol.-%, used for cross compensation), use
water vapor saturated N2 according to saturation characteristic (Item 22.) as span gas. Purge N2
through a gas-blubber bottle, filled with distilled water and in a little bit higher ambient temperature
as necessary Connect a second vessel into a kyrostat (to hold ambient temperature constant) in
series to get defined dew point.
Take care of the safety instructions applicable for the gases (sample
gases and test gases) and for the gas bottles containing these gases!
Max. permissible gas pressure: 1,500 hPa, except instruments for gas purity
measurement (see chapter 5.4.3.1), with integrated valve blocks (see page 5-8) and/or
paramagnetic Oxygen sensor (see table page 20-4)!
An constant input pressure (± 70 hPa or ±1 psig) between 1,500 to 3,000 hPa (20 to 43
psig) is necessary for sample gas as well as for zero gas and span gas because of
internal pressure regulator (different input pressures look at order confirmation).
All calibration gases need to be kept to the same temperature as sample gas!
The calibration of MLT 1 ULCO must be done using pure test gases.
Emerson Process Management GmbH & Co. OHG
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MEASUREMENT/CALIBRATION//SWITCHING OFF
SWITCHING OFF
7.3
Instruction Manual
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Switching Off
Before switching off the analyzer, we recommend first purging all the gas lines for about 5 minutes
with zeroing gas (N2) or adequate conditioned air.The full procedure for shutting down is as follows:
Analyzers with electrochemical EO2 cell have to be purged with conditioned ambient
air prior to disconnect the gas lines !
Then the gas line fittings have to be closed for transport or depositing analyzer.
Analyzers with electrochemical TEO2 cell have to be purged with Nitrogen (N2) prior to
disconnect the gas lines !
Then the gas line fittings have to be closed for transport or depositing analyzer.
❍
Admit zeroing gas at the respective gas inlet fitting.
❍
Set the gas flow to permissible rate.
After 5 minutes have elapsed:
❍
Switch Off by disconnecting the voltage supply.
❍
Shut Off the gas supply.
❍
Disconnect gas lines.
❍
Close all gas line fittings immediately.
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10.
TROUBLESHOOTING
NO FUNCTION (LCD DISPLAY)
Troubleshooting
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
10.1
a)
b)
c)
Instrument has no function (LCD display is dark)
Possible Causes
Check / Correct
External supply voltage is absent:
Check connection mains line → MLT / PS
MLT 1/4:
- DC polarity is reversed
Check external power supply
Check electrical supply
Possible internal failures:
Check internal voltage supply (Section 11.1.1)
MLT 1/4:
Check fuses of PCB “LEM” (Section 12.4)
MLT 2:
Check internal fuses F1 and F2 (Section 12.4)
Internal connections incorrect or absent:
Check internal connections:
Check whether PCB “ACU” is in correct place
(Fig. 1-31)
Check PCB's “ACU-AFP” (front panel)
connection cable
d)
PCB “AFP” board or LC display defective
Exchange front panel (see 12.2)
e)
PCB “ACU” defective:
Replace ACU (see 12.3)
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TROUBLESHOOTING
NO MEASUREMENT SCREEN
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10.2
No / Incorrect Measurement Screen
Possible Causes
a)
Defective network connection:
Check / Correct
Check network termination (see section 1.11).
Check network connection between platform,
analyzer, external modules.
Replace connection cable or network module
PCB “LEM” if necessary.
b)
Analyzer module has not been integrated
in the system software (network):
Integrate the analyzer module in the
system software (see software manual).
c)
Failure in signal processing:
See Section 11.1.
d)
EMC radiation via PCB “SIO/DIO”
Incorrect wiring of external actors (section 5.5)
e)
PCB “AFP” board or LC display defective
Exchange front panel (see 12.2)
f)
PCB “ACU” defective:
Replace ACU 02 (see 12.3)
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10.3
TROUBLESHOOTING
DISPLAY MESSAGES
Display Messages
Several operating conditions of the analyzer / module are controlled and signalized via corresponding messages of the display.
Failures can be shown at the menu “Status” → “Status details” → “Failures” (Item “4.1.1 Status
details” of software manual).
10.3.1
Chopper Fail
Possible Causes
a)
Chopper fail:
Check / Correct
Check connection to PCB “PIC” Fig. 1-32) or
PCB “DSP” Fig. 1-33) resp.;
see section 11.1.3
10.3.2
Raw Signal Too High / Low
Possible Causes
a)
Concentration of sample gas is to high.
Check / Correct
Reduce gas concentration.
Use another analyzer suitable for the
concentration range involved.
b)
Incorrect physical zero point
Check and adjust physical zero point alignment
(see Section 17.5 / 11.1.6)
.
c)
Contamination of the gas paths
Check if photometric components are dirty,
clean or replace the components if necessary
(cf. Section 17.).
Check and adjust physical zero point alignment
(see Section 17.5 / 11.1.6)
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TROUBLESHOOTING
DISPLAY MESSAGES
10.3.3
Detector signal communication failed
Possible Causes
a)
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Check / Correct
Failure in signal processing:
Check connection to PCB “PIC” Fig. 1-32) or
Detector failure
PCB “DSP” Fig. 1-33) resp.;
See Section 11.1.4 (IR/UV measurement),
Section 11.1.6 (O2 measurement).
b)
Contamination of the gas paths
Check if photometric components are dirty,
clean or replace the components if necessary
(cf. Section 17.).
Check and adjust physical zero point alignment
see Section 17.5 / 11.1.6)
(
10.3.4
Light source
Possible Causes
a)
10.3.5
Failure in signal processing:
Check connection to PCB “PIC” Fig. 1-32) or
Light source failure
PCB “DSP” Fig. 1-33) resp.;
See Section 11.1.2
Detector
Possible Causes
a)
Check / Correct
Failure in signal processing:
Detector failure
Check / Correct
Check connection to PCB “PIC” Fig. 1-32) or
PCB “DSP” Fig. 1-33) resp.;
See Section 11.1.4
b)
Contamination of the gas paths
Check if photometric components are dirty,
clean or replace the components if necessary
(cf. Section 17.).
Check and adjust physical zero point alignment
(see Section 11.1.6)
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10.3.6
TROUBLESHOOTING
DISPLAY MESSAGES
Heater Unit Regulation
Possible Causes
Check / Correct
a)
PCB “BHZ” failure
Check PCB “BHZ” (Section 11.2)
b)
Voltage supply absent
Check voltage supply
(Section 10.1 / 11.1.1)
10.3.7
Temperature Measurement
Possible Causes
a)
b)
Check / Correct
Chopper not or not correct connected
Check connection of Chopper → PCB “PIC”
to PCB “PIC”/“DSP”
(Fig. 1-20) or Chopper → PCB “DSP” (Fig. 1-33)
Temperature sensor not or not correct
connected / defective
Check connection of sensor → PCB “PIC”
(Fig. 1-32, P10 / P20) or
(temperature shown in display not in
a range of + 15 °C to + 70 °C)
sensor → PCB “DSP” (Fig. 1-21).
Exchange temperature sensor
(Fig. 17-2, Item 3)
10.3.8
Invalid Pressure Measurement
Possible Causes
a)
Instrument without pressure sensor
Check / Correct
Check wether software parameter
“pressure measurement” is set to
“manual measurement”.
Check, that correct pressure value is entered.
b)
Pressure sensor not or not correct
Check connection of sensor → PCB “PIC”
connected / defective
(pressure show in display not in
(Fig. 1-32, P1 / P9) or
sensor → PCB “DSP” (Fig. 1-33)
a range of 800 hPa to 1,200 hPa)
Exchange pressure sensor.
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Instruction Manual
TROUBLESHOOTING
DISPLAY MESSAGES - NO OR INCORRECT ANALOG OUTPUTS / DIGITAL I/O'S
10.3.9
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External Input
Possible Causes
Check / Correct
a)
Configuration of PCB “DIO” incorrect
Check correct software configuration of “DIO”
b)
EMC radiation via PCB “DIO”
Incorrect wiring of external actors (section 5.5)
c)
PCB “DIO” not or not correct connected /
Check correct connection of PCB “DIO”.
defective
Exchange PCB “DIO”.
d)
10.4
PCB “ACU” defective:
Replace ACU 02 (see 12.3)
No or incorrect Analog Outputs / Digital I/O's
Possible Causes
Check / Correct
a)
Configuration of PCB “SIO/DIO” incorrect
Check correct software configuration of PCB's
“SIO/DIO”
b)
EMV radiation via PCB “SIO/DIO”
Incorrect wiring of external actors (section 5.5)
c)
PCB “SIO/DIO” not or not correct
Check correct connection of PCB “SIO/DIO”.
connected / defective
Exchange PCB “SIO/DIO”.
d)
e)
10 - 6
Additional PCB “SIA”
Check correct connection of PCB “SIA” → “SIO”.
(more than two analog outputs)
not or not correct connected / defective
(Fig.1-35)
Exchange PCB “SIA/SIO”.
PCB “ACU” defective:
Replace ACU 02 (see 12.3)
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Instruction Manual
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10.5
TROUBLESHOOTING
CALIBRATION NOT POSSIBLE
Calibration not possible
Possible Causes
a)
NGA 2000 MLT Hardware
Incorrect nominal value of span gas
Check / Correct
Enter the correct nominal value
(certification of span gas bottle)
(see software manual)
b)
Incorrect zero gas / span gas in use.
Check zero gas / test gas in use
c)
Tolerance error.
Switch off tolerance check before starting a
calibration (see software manual)
d)
Incorrect physical zero point
Check and adjust physical zero point alignment
(see Section 17.5 / 11.1.6)
e)
Contamination of the gas paths
Check if photometric components are dirty,
.
clean or replace the components if necessary
(cf. Section 17.).
Check and adjust physical zero point alignment
(see Section 17.5 / 11.1.6)
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TROUBLESHOOTING
FLUCTUATING OR ERRONEOUS DISPLAY
10.6
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Fluctuating or erroneous display
Possible Causes
Check / Correct
a)
Leakage into gas circuit.
Perform a leakage check (see Section 14).
b)
Ambient air contains gas constituent to
be measured in excessive concentration.
Purge the instrument.
c)
Gas pressure subject to
excessive fluctuations.
Check the gas lines preceding and following
the instrument.
Eliminate any restrictions found beyond the
gas outlet fitting.
Reduce pumping rate or flow rate.
d)
Contamination of the gas paths
Check if photometric components are dirty,
clean or replace the components if necessary
(cf. Section 17.).
Check and adjust physical zero poin alignmentt
(see Section 17.5 / 11.1.6)
e)
Barometric pressure effects
See Section 10.3.8
f)
Temperature below the dew point
in the gas paths
Check the temperature of the gas paths
and eliminate any reason of condensation.
Maintain all temperatures at values at least
10 °C above the dew point of sample gas.
Check gas paths and gas conditionning
for condensation and clean or exchange.
10 - 8
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10.7
TROUBLESHOOTING
RESPONSE TIME TOO LONG (T90 TIME)
Response time too long (t90 time)
Possible Causes
a)
NGA 2000 MLT Hardware
Incorrect response time (t90 time).
Check / Correct
Check the value for t90 time
(see software manual)
b)
Pumping rate inadequate.
Check diaphragms and membranes of
gas sampling pump.
The feeder line between the sampling point
and the instrument is too long.
Use a larger, external pump;
consider adding a bypass line to the
process stream for sampling purposes
(see Section 5.3).
c)
Contamination of the gas paths
Check if photometric components are dirty,
clean or replace the components if necessary
(cf. Section 17.).
Check and adjust physical zero point alignment
(see Section 17.5 / 11.1.6)
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TROUBLESHOOTING
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TEST PROCEDURE / TEST POINTS
SIGNAL PROCESSING WITH PSV
11.
Test Procedure / Test Points
The housing has to be opened (cf. Section 15) for troubleshooting, for checking the connections
and for replacement or cleaning of any of the components of the equipment.
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
All measuring points are made to earth (
of detectors PCB “VVS”, Fig.
11-2). (Remove covering hood of detector).
11.1
Signal processing
The principle signal processing with PCB "PSV"is shown in Fig. 11-1.
Ch2
Source
Chopper
11.1.3
Ch1
Network
(Display)
PCB "MOP"
PCB "PIC"
PCB "ADS"
Source
PCB "PSV"
17.5
11.1.6
PCB "ACU"
11.1.5
I/O's
Detector
Detector
PCB "SIO"
PCB "DIO"
11.1.1
11.1.4
Fig. 11-1: Principle signal processing with PCB "PSV"
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Instruction Manual
TEST PROCEDURE / TEST POINTS
INTERNAL VOLTAGE SUPPLY / IR SOURCE
11.1.1
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Internal Voltage Supply
Test point:
“+” “-”
“A” “ ”
“+” or “-” of detector PCB “VVS”
(Fig. 11-2)
R5 (UV)
Measuring instrument:
Digital voltmeter
Signal:
≈ + 6,2 V dc at test point “+”
≈ - 6,5 V dc at test point “-”
R11
(IR)
R1 (UV)
Failure:
No signal
Possible reason:
Detector not connected to PCB “PIC” (Fig. 1-20) or PCB “DSP” (Fig. 1-21)
External voltage supply absent
Internal / external power supply defective (Fuses ?)
PCB “PIC”/“DSP” not correctly connected to PCB “ICB” / defective
No “+” voltage from the PCB “PIC”, in fast of a ground loop of the
physics (connection physics → housing, must be ∞)
11.1.2
Fig. 11-2: PCB "VVS"
IR Source
Test point:
Connector of IR source
Measuring instrument:
Ohmmeter
Signal:
≈ 6.8 Ω to 8.6 Ω between the two cables
Failure:
incorrect values
Possible reason:
Source defective
Light source is cold:
For more - IR - channel analyzer interchange the light sources.
Replace the suspect light source (see Section 17.2).
11 - 2
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TEST PROCEDURE / TEST POINTS
CHOPPER / UNAMPLIFIED MEASURING SIGNAL AT DETECTOR
LED “red”
11.1.3
Chopper
Test point:
PCB “MOP”
Measuring instrument:
optical
LED “green”
Fig. 11-3: PCB "MOP"
(partial view)
Signal:
red LED must be off
green LED must be blinking
Failure:
red LED is on / green LED is on permanent
Possible reason:
Chopper not (correct) connected to PCB “PIC” (Fig. 1-32, chopper of
channel 1+2 must be connected to P34) or PCB “DSP” (Fig. 1-33)
Chopper defective
PCB “PIC”/“DSP” not correctly connected to PCB “ICB” / defective
11.1.4
Unamplified Measuring Signal at Detector
Test point:
“A” and “ ” of detector PCB “VVS” (Fig. 11-2)
Measuring instrument:
Oscilloscope
Signal:
max. 4 VPP
min. 1 VPP
Failure:
incorrect values
Possible reason:
Amplitude adjustment with R11 (IR measurement) or R5 (UV measurement).
Amplitude will be bigger for alteration of resistance R11/R5 to smaller
values (min. value for R11: 56 kΩ)
Failure:
No signal
Possible reason:
Detector not connected to PCB “PIC” (Fig. 1-32) or PCB “DSP” (Fig. 1-33)
Voltage supply absent (Item 11.1.1)
Source failure (Item 11.1.2) / Chopper failure (Item 11.1.3)
PCB “PIC”/“DSP” not correctly connected to PCB “ICB” / defective
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TEST PROCEDURE / TEST POINTS
SIGNAL PROCESSING ON PCB “PSV”
11.1.5
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Signal Processing on PCB “PSV”
Test point:
P21.2 (“+”) and P21.3 “ ” of PCB “PIC” (Fig. 1-32)
Measuring instrument:
Oscilloscope (signal form see 11.1.4)
Signal:
Unamplified Measuring Signal from Detector (Measuring Channel 1)
(max. 4 VPP / min. 1 VPP)
green LED of PCB “PSV” must be blinking with approx. 15 Hz
Failure:
No signal / incorrect values
green LED is out / on permanent
Possible reason:
Detector signal (channel 1) failure (Item 11.1.4)
Voltage supply absent (Item 11.1.1)
Source failure (Item 11.1.2) / Chopper failure (Item 11.1.3)
PCB “PIC” not correctly connected to PCB “ICB” or “ADS” / defective
PCB “PSV” not correctly connected to PCB “ICB” or “ADS”/ defective
11 - 4
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11.1.6
TEST PROCEDURE / TEST POINTS
PHYSICAL ZERO ALIGNMENT
Physical Zero Alignment
For physical zero adjustment the raw signal of respective measuring channel is set to ± 100.000
counts while purging instrument with zero gas.
The raw measuring values can be shown by pressing "Status" (F2) → "RawMeas." (F2).
11.1.6.1
IR Measurement
For set of physical zero adjustment see Item 17.5 please.
11.1.6.2
Paramagnetic Oxygen Measurement
Set physical zero adjustment by alteration the position of photodiode of the sensor.
A further test is to measure the output voltage of the sensor while purging with test gas.
not used
5 (+ 6,3 V dc)
4
3 (- 6,3 V dc)
2 (signal)
1( )
not used
Test point:
“Pin 2” of P23 of PCB “PIC” (Fig. 1-32, too)
Signal:
≈ + 4 V dc
(purging with test gas 25 Vol.-% / 100 Vol.-% oxygen (O2), depending
on installed sensor)
11.1.6.3
Electrochemical Oxygen Measurement (EO2)
For set / check of sensor see Item 18.2 and 18.3.4 please.
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TEST PROCEDURE / TEST POINTS
HEATING UNIT
11.2
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Heating Unit
Test point:
PCB “BHZ” (Fig. 11.4) of heater unit (Fig. 1-21. 1-24 and 1-27)
Measuring instrument:
optical
Signal:
red LED's of heater transistors must be off
green control LED must be blinking
Failure:
red LED is on / green LED is out
Possible reason:
Heater transistor defective (exchange PCB “BHZ”)
Check voltage supply of BHZ
Check “all internal connections” → PCB “BHZ”
Control LED “green”
LE
L
D
ED
“re
(heating transistor 3)
(heating transistor 4)
(heating transistor 1)
(heating transistor 2)
d”
“re
d”
LED “red”
LED “red”
Fig. 11-4: PCB "BHZ” (position of signal LED's / heating transistors)
11 - 6
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11.3
NGA 2000 MLT Hardware
TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
Troubleshooting Instructions for PCB DSP01
Fig. 11-5: PCB "DSP01”
This chapter contains purposeful instructions for troubleshooting when operating a DSP01 pcb
(substitute for PIC02-pcb and PSV02-pcb, e.g. when raw count = 0 counts).
This instructions manual provides a troubleshooting procedure that enables you to check DSP01
for errors step by step.
Basically, LED signals are explained and soldering pads on DSP01 pcb are checked out for correct
configuration.
Descriptions of soldering pads that are not mentioned in this instructions manual you will find in
the technical description of DSP01 pcb.
The electronic parts of the analyzer can be irreparably damaged if exposed
to electrostatic discharge (ESD).
Take care to follow all safety measures against ESD when handling DSP01
pcb.
That pcb is extremely sensitive against ESD and inappropriate handling !
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TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
11.3.1
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Inspection of LEDs on component side of DSP01
A
C
B
Fig. 11-6: LEDs on component side of PCB "DSP01”
If you presume any malfunction of DSP01 pcb, first step is to check out correct activity / status of the LEDs
on component side of the pcb.
In the picture above, all elements that have to be inspected are marked in yellow. .
Check out status of the LEDs in areas A,B and C as described below.
Please note, that independent from an agreeing status of the LEDs with this description, furtheron a
number of soldering pads (please see following pages) are to be inspected, before any failure of DSP01
can be determined.
A
On the right you see the LEDs that are
to be inspected in area A in enlarged
depiction.
During operation, LEDs V7 (CH3) and
V9 (CH4) must be flashing, if a detector is employed on the appropriate detector connection.
In case that the concerning channel is
not used, status of the appropriate LED
does not matter.
Correct status during operation displays correct function of synchronization (lock display).
11 - 8
A
Fig. 11-6a: LEDs “V7” and “V9” (PCB "DSP01”)
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TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
B
On the right you see the LEDs fo area B in
enlarged depiction.
During operation, the LEDs V3 (CH1) and
V4 (CH2) must be flashing, if a detector is
employed on the concerning detector connection.
In case that the appropriate channel is not
B
used, status of the concerning LEDs does
not matter.
Correct status during operation displays
correct function of synchronization (lock
display).
Fig. 11-6b: LEDs “V3” and “V4” (PCB "DSP01”)
C
At last, inspect the LEDs in area C (see Fig.
11-6c on the right). The green LEDs must
be flashing, the red LED must be off (if the
red LED is active, DSP01 is operating in
DEFAULTMODE, i.e. configuration is erroneous. In that case, please note description
of soldering pad „DEF“ (LB3), Jumper P40
as well as of the single LEDs in section
11.3.4.1)
Jumper P40
C
Fig. 11-6c: LEDs “V12” to “V17”, Jumper “P40”
(PCB "DSP01”)
After carrying out the described inspection of the LEDs on the component side of DSP01 pcb, carry on
with inspection of the soldering pads on the soldering side as described on the following pages.
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TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
11.3.2
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Inspection of soldering pads of DSP01
For that part of troubleshooting, and especially for inspection of soldering pads LB1 and LB2, turn the
soldering side of DSP01 up.
A
B
Fig. 11-7: Soldering pads on soldering side of PCB "DSP01”
Areas A and B where soldering pads LB1, LB2 and LB18 are located in, are marked in yellow in the
depiction above.
Below you see the soldering pads in areas A and B in enlarged depiction.
A
+5V
Soldering pads LB1 and LB2 must be configured as shown in the picture. (LB1 open,
i.e. +5V of DSP01 are not used as supply
GND
voltage for ICB20 bus pcb and LB2 closed,
i.e. GND of DSP01 must be connected to
A
GND of ICB20 bus pcb).
If configuration differs from description
above, communication problems between
DSP and ACU can arise (reconfiguration
necessary !).
Fig. 11-7a: Soldering pad “LB1” and “LB2 (PCB "DSP01”)
B
B
Soldering pad LB18 must be 2-3 closed.
With that, troubleshooting procedure is finished. Please read the following consideration to evaluate the inspection.
Fig. 11-7b: Soldering pad “LB18” (PCB "DSP01”)
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11.3.3
TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
Evaluation
When inspection of the DSP is finished you can evaluate it as follows:
(Schematic diagram of inspection)
Inspection of the LEDs (acc.
to part 1 of this description)
as well as LB3
Status of LEDs not
erroneus
(acc. to description)
Status of LEDs all right
/ LB3 all right
(acc. to description)
Inspection of soldering pads
LB1, LB2, LB18 and P40
(acc. to description)
DSP okay
Correct configuration of
soldering pads
(acc. to description)
Probably there is a
problem with the DSP01
pcb !
Incorrect configuration of
soldering pads
Reconfiguration of soldering pads is necessary.
Fig. 11-8: Schematic diagram of inspection of PCB "DSP01”
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TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
90002929
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11.3.4
Appendix
11.3.4.1
Description of soldering pad DEF (LB3):
Basically, soldering pad LB3 / DEF must be open.
Configuration of that soldering pad causes the following operating modes:
open:
„NORMAL-MODE“
closed:
„DEFAULT-MODE“.
Soldering pad
C
Fig. 11-9: Soldering pad “DEF/LB3” (PCB "DSP01”)
11.3.4.2
Definition of
LEDs:
Mode
LB3
LB18
P40
Default
close
2-3
x
Both of the following tables contain definitions of LEDs as well as
LED
OK
Comment
Error
V16
on
always
on or off
the Default configurations of
the soldering pads.
V13
off
always
on or off
V15
flash
MAX1400(DC)
on or off
V12
flash
F Sensors
on or off
V17
flash
Source current
on or off
V14
flash
Chopper
on or off
V3
flash
Ch_signal 1
on or off
V4
flash
Ch_signal 2
on or off
V7
flash
Ch_signal 3
on or off
V9
flash
Ch_signal 4
on or off
Table 11-1: Definition of LEDs/Default configuration of soldering
pads (PCB "DSP01”)
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TEST PROCEDURE / TEST POINTS
TROUBLESHOOTING INSTRUCTIONS FOR PCB DSP01
Mode
LB3
LB18
P40
Normal
open
2-3
(flash enable 1-2
(for programmupdate), must be
2-3)
open
LED
OK
Comment
Error
V16
off
always
on or off
V13
flash
T / P Sensors
(Pressure- and
Temp. sensor)
on or off
V15
flash
MAX1400(DC)
A/D-converter
(DC channels)
on or off
V12
flash
F Sensors
(Flow
sensors)
on or off
V17
flash
Source current
on or off
V14
flash
Chopper
on or off
V3
flash
Ch_signal 1
(Detector 1)
on or off
V4
flash
Ch_signal 2
(Detector 2)
on or off
V7
flash
Ch_signal 3
(Detector 3)
on or off
V9
flash
Ch_signal 4
(Detector 4)
on or off
Table 11-2: Definition of LEDs/Normal configuration of soldering pads (PCB "DSP01”)
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TEST PROCEDURE / TEST POINTS
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12.
NGA 2000 MLT Hardware
REMOVAL / REPLACEMENT OF COMPONENTS
REMOVAL OF OF PCBS (IN PREPARATION)
Removal / Replacement of Components
Exchange components if requested by repair or servicing
HIGH TEMPERATURES !
While working at photometers and/or thermostated components inside the
analyzers hot components may be accessible!
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
12.1
Removal / Replacement of PCBs (in preparation)
12.1.1
Rear Mounting Slots (in preparation)
12.1.2
Internal Slots (in preparation)
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Instruction Manual
REMOVAL / REPLACEMENT OF COMPONENTS
REMOVAL / REPLACEMENT OF OPERATION FRONT PANEL
12.2
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Removal / Replacement of Operation Front Panel
Front panel plate together with LC display and circuit board AFP 01 constitutes an unit. Therefore,
the front panel has to be disassembled completely when one component of the unit is out of order.
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
❍
Open the front panel / housing (cf. Section 15).
❍
Remove the cable (ACU - AFP 01 connection) from the circuit board ACU.
❍
Remove all optional mounted components from front panel.
❍
Exchange complete front panel unit .
❍
Assemble all optional mounted components to new front panel.
❍
Re-attach the cable (ACU - AFP 01 connection) to the circuit board ACU.
❍
Close the instrument (i.e., re-attach the front panel, see section 15.).
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12.3
REMOVAL / REPLACEMENT OF COMPONENTS
REPLACEMENT OF BUFFER BATTERY OF ACU 02
Replacement of Buffer Battery on the ACU 02
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
12.3.1
Removal of ACU 02
Use the following steps to remove the ACU 02 board (see Fig. 1-31, too):
❍
Open the front panel / housing (cf. Section 15).
For analyzers:
❍
Push the card ejector for the ACU 02 downwards and remove the board.
(ACU01: P17 /
ACU02: P23)
❍
Remove the cable (ACU - AFP 01 connection) from the circuit board ACU 02.
(ACU01: P27 /
ACU02: P20)
Battery Jumper
(ACU 01: P17 / ACU 02: P23)
+
Connection
to LCD dispaly
(ACU01: P28 /
ACU02: P1)
-
Buffer battery
on soldering pins
Fig. 12-1: Controller Board ACU (partial view, component side)
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Instruction Manual
REMOVAL / REPLACEMENT OF COMPONENTS
REPLACEMENT OF BUFFER BATTERY OF ACU 02
12.3.2
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Replacement of Buffer Battery
Use the following procedure to replace the battery:
❍
Remove the ACU 02 (see 12.3.1).
❍
Remove the jumper “P23” (ACU02) or “P17” (ACU 01) for battery buffer (Fig. 12-1).
All data and compensation values entered by the user will be deleted (RAM-fail)!
❍
Unsolder the battery from the soldering pins (see Fig. 12-1).
❍
Solder the new battery (Ordering No. 03 765 180) to the soldering pins (see Fig. 12-1).
Verify polarity when soldering the new battery (Fig. 12-1) !
Do not short circuit battery !
After the replacement:
❍
Re-insert the jumper for battery buffer (Fig. 12-1).
❍
Install the ACU 02 (see 12.3.3).
12.3.3
Installation of ACU 02
❍
Tilt the card ejector of the ACU 02 upwards and put in the card until the catch locks into
place.
❍
Re-attach the cable (ACU 02 - AFP 01 connection) to the circuit board ACU 02.
❍
Close the instrument (i.e., re-attach the front panel, see section 15.).
❍
Switch on instrument.
Now all the data required by the user can be entered again, e.g. system parameters.
12 - 4
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12.4
REMOVAL / REPLACEMENT OF COMPONENTS
FUSES
Fuses
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
In case of exchanging fuses the customer has to be certain that fuses of
specified type and rated current are used. It is prohibited to use repaired
fuses or defective fuse holders or to short-circuit fuse carriers (fire hazard).
After visual checking, check the fuses with an ohmmeter.
If low impedance has been measured, the fuse is in order.
High impedance means, the fuse is out of order and must be replaced.
12.4.1
MLT 2
❍
Open the housing (cf. Section 15.2).
❍
Take out and check the fuses (Fig. 12-2 and 1-15a).
Replace the fuse(s) if necessary [T 6.3 A / 250 V (5 x 20 mm)].
❍
Close the housing (cf. Section 15.2).
Fuses (T 6.3A/250V)
X11
X9
X10
Serial out
12
1234
F100.1
F100.2
11
Fig. 12-2: Fuses MLT 2 (partial inside view, drawing without front panel)
Emerson Process Management GmbH & Co. OHG
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NGA 2000 MLT Hardware
Instruction Manual
REMOVAL / REPLACEMENT OF COMPONENTS
FUSES
12.4.2
90002929
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MLT 1 / 4
The fuses for 24 V dc Input are mounted on the PCB “LEM”.
❍
Remove PCB “LEM” (see Section 12.1).
❍
Take out and check the fuses (Fig. 12-3). Replace the fuse(s) if necessary.
Two pieces of spare fuses are on the PCB (Fig. 12-3).
❍
Insert PCB “LEM” (see Section 12.1) and reclose the instrument.
Network
Connectors
(RJ 45)
Spare Fuses
Fuse
Fig. 12-3a: Fuses PCB LEM 01 (component side)
Network
Connectors
(RJ 45)
Spare Fuses
Fuse
Fig. 12-3b: Fuses PCB LEM 02 (component side)
12 - 6
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12.5
NGA 2000 MLT Hardware
REMOVAL / REPLACEMENT OF COMPONENTS
CONNECT/DISCONNECT UV SOURCE AND POWER SUPPLY FOR UV SOURCE
Connect / Disconnect UV Source and Power Supply for UV Source
The cover of the housing and the front panel plate has to be disassembled to have access to
the cable from the UV source to connect it with the power supply for UV source.
HIGH VOLTAGE !
The optional UV lamp operates with high voltage (Power Supply UVS) !
UV SOURCE !
Ultraviolet light from UV lamp can cause permanent eye damage !
Do not look directly at the ultraviolet source !
TOXIC SUBSTANCE !
The optional UV lamp contains mercury. Lamp breakage could
result in mercury exposure ! Mercury is highly toxic !
If the lamp is broken, avoid any skin contact to mercury and
inhalation of mercury vapors !
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
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Instruction Manual
REMOVAL / REPLACEMENT OF COMPONENTS
CONNECT/DISCONNECT UV SOURCE AND POWER SUPPLY FOR UV SOURCE
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❍
Open the front panel / remove cover from MLT housing (cf. Section 15).
❍
Take the cable from the UV source (part no. 42711213) out of the thermostat controlled
compartment to the power supply for UV source located behind the removed front panel
❍
Plug in the cable from UV source on the connector on top of the power supply for UV
source (part no. 42715072).
Power Supply for UV Source
Plug in cable from UV source
Fig. 12-4a: Power Supply for UV Source (front view, front panel disassembled)
12 - 8
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NGA 2000 MLT Hardware
REMOVAL / REPLACEMENT OF COMPONENTS
CONNECT/DISCONNECT UV SOURCE AND POWER SUPPLY FOR UV SOURCE
Connect the two white grounding cables to the UV source.
❍
One grounding cable comes from power supply for UV source .
❍
The 2nd grounding cables comes from PCB ESP10 (part no. 43002530).
❍
Connect both cables to the UV lamp (connection point) as indicated below.
Cable from UV source to UV power supply
PCB ESP10
UV Source
Connection point at UV source
Fig. 12-4b: UV Source and PCB ESP10 (top view, housing cover disassembled)
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REMOVAL / REPLACEMENT OF COMPONENTS
12 - 10
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Instruction Manual
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MAINTENANCE
Maintenance
In general only the gas conditionning hardware will require maintenance; the analyzer itself
requires very little maintenance.
The following checks are recommended for maintenance of the proper operation of the analyzer.
Check and adjust zero-level:
weekly
(MLT 1ULCO / MLT 3 Gas Purity Measurment:
daily)
Check and adjust span:
weekly
(MLT 1ULCO / MLT 3 Gas Purity Measurment:
daily)
Perform leak testing:
6 times annually.
The maintenance frequencies stated above are presented as guidelines only; maintenance
operations may be required more or less frequently, depending upon usage and site conditions.
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MAINTENANCE
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14.
LEAK TESTING
Leak Testing
The gas path system should be leak tested at least on a bimonthly basis and after maintenance,
replacement or repair of gas path parts.
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
Analyzer /
Analyzer Module
Overpressure
Valve
Water
Fig. 14-1: Leak Testing with an U - Tube - Manometer
❍
❍
Required tools
•
U-turn manometer for max. 500 hPa
•
Stop valve
Procedure
Connect the water filled u-turn manometer to the analyzer‘s sample gas output
(disconnect external gas lines).
•
Install the stop valve between gas input fitting and a Nitrogen (N2) supply.
•
Open the stop valve until the internal gas path is under pressure of approx. 50 hPa
(corresponding to 500 mm water column)
•
Close the stop valve. After a short time for the water to balance the water level
must not change over a time period of approx. 5 minutes!
•
Note!
It is recommended to include external equipment (e.g. cooler, dust filters, etc.) into a leak
test!
Overpressure max. 500 hPa !
For differential measurement the leakage check must be performed for
measurement side and reference side separately !
Analyzers with parallel tubing require separate leak tests for each gas path!
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NGA 2000 MLT Hardware
LEAK TESTING
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15.
OPENING OF HOUSING
MLT 1
Opening the Housing
The housing must be opened for checking the electrical connections and for replacement or
cleaning of any of the components of the analyzer.
The following sections describe how to open the different analyzer housings provided the
instruments are fully accessible, e.g. are taken out of the rack.
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
ELECTRICAL SHOCK HAZARD!
Live parts are accessible when working at open instruments!
HIGH TEMPERATURES !
While working at photometers and/or thermostated components inside the
analyzers hot components may be accessible!
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
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OPENING OF HOUSING
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MLT 1 (PLATFORM HOUSING)
15.1
MLT 1
15.1.1
MLT 1 (Platform housing)
15.1.1.1
Housing Cover
❍
Disconnect all voltage supplies.
❍
Remove analyzer module out of platform (see platform manual).
❍
Unscrew the respective fastening screws at both housing sides (Fig. 15-1).
❍
For rear cover unscrew the additonal fastening screw at the top of the housing (Fig. 15-1)
❍
Remove the respective housing top cover panel.
Repeat above steps in reverse order to assemble the housing
Top fastening screws,
rear housing cover
Fastening screw,
rear housing cover
Fastening screw,
front housing cover
Fig. 15-1: MLT 1 (Plattform housing)
(Fastening screws housing cover)
15 - 2
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15.1.1.2
OPENING OF HOUSING
MLT 1 (PLATFORM HOUSING)
Front Panel
Removing of front panel can be done without removing of housing covers:
❍
Disconnect module from power supply.
❍
Remove analyzer module out of platform (Item 17.1 of platform manual).
❍
Unscrew the 6 fastening screws at both housing sides (Fig. 15-2)
or
unscrew the 4 fastening screws at front panel (Fig. 15-2).
❍
Remove front panel to the front carefully.
Optionally internal components may be fixed to the front panel, e.g. internal fan, UVS, oxygen sensor, pressure sensor (see fig. 1-7)!
Repeat above steps in reverse order to assemble the housing
Take care not to squeeze internal electrical connections and gas lines when
assembling the housing!
Fastening screws,
module front panel
Network
Fastening screws,
module front panel
ME - +
CAUTION !
Use either
front
OR
rear
supply
Fastening screw,
front housing cover
Fig. 15-2: MLT 1 (Plattform housing)
(Fastening screws front panel)
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OPENING OF HOUSING
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MLT 1 (1/2 19" HOUSING)
15.1.2
MLT 1 (1/2 19" housing)
15.1.2.1
Housing Cover
❍
Disconnect all voltage supplies.
❍
Unscrew fastening screws for rack mounting / front frame if necessary (Fig. 1-1).
Remove analyzer out of rack or remove the front mounting frame and carrying strap to rear.
❍
Unscrew the respective fastening screws at both housing sides (Fig. 15-3)
❍
Remove the respective housing top cover panel.
Repeat above steps in reverse order to assemble the housing
fastening screws housing cover
Fig. 15-3: MLT 1 (1/2 19" housing)
(Fastening screws housing cover)
15 - 4
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15.1.2.2
OPENING OF HOUSING
MLT 1 (1/2 19" HOUSING)
Front Panel
❍
Opening housing cover (Item 15.2.1).
❍
Unscrew the 6 fastening screws at both housing sides (Fig. 15-4)
❍
Remove front panel to the front carefully.
Optionally internal components may be fixed to the front panel, e.g. internal fan, UVS, oxygen sensor, pressure sensor (see fig. 1-7)!
Repeat above steps in reverse order to assemble the housing
Take care not to squeeze internal electrical connections and gas lines when
assembling the housing!
Fastening screws,
front panel
Fig. 15-4: MLT 1 (1/2 19" housing)
(Fastening screws front panel)
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OPENING OF HOUSING
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MLT 2
15.2
MLT 2 (Field Housing)
EXPLOSION HAZARD!
Opening Instruments installed in hazadous areas is permitted only taking
into consideration the special conditions for such areas !
Refer to the special instruction manual for operating instruments in hazadous
areas to detailled information about handling such equipment !
ELECTRICAL SHOCK HAZARD!
Live parts are accessible when working at open instruments!
❍
The front door is closed utilizing 4 sash fasteners (fig. 15-5).
To open use a four-square Allen key shipped together with the instrument and turn the
fastener according the markings printed onto the front door.
Note!
For dual compartment housing the described opening procedure is the same for the second
housing part!
❍
Lift left side of front panel slightly and open the door to the right side carefully.
❍
Most components are located on a photometer slice carriage which can be pulled out to the
front after removing 2 knurled head screws (fig. 15-6). Store the screws on bolts placed
nearby the screws. Pulling out the sliding carriage in a first step is possible only to a
mechanical stop(fig. 15-6). Push the stop aside to completely pull out the carriage slide of
the housing.
Note!
Before taking the slide out of the housing disconnect all electrical and gas path connections!
Be careful when working at photometer components: HOT parts!
Repeat above steps in reverse order to assemble the housing
15 - 6
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OPENING OF HOUSING
MLT 2
Fastener for front panel
Fastener for front panel
Fig. 15-5: MLT 2 (Field housing) (fastener for front panel)
mechanical
stop
knurled head screws
Fig. 15-6: MLT 2, photometer carriage slide
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OPENING OF HOUSING
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MLT 3 / MLT 4
15.3
❍
MLT 3/4 (1/1 19" housing)
Disconnect all voltage supplies.
15.3.1
❍
Housing Cover
Unscrew the 8 fastening screws on top.
Pull the cover straight up.
Repeat above steps in reverse order to assemble the housing
15.3.2
❍
Front Panel (MLT 4 / MLT 3 standard version)
Unscrew the 6 fastening screws (Fig. 15-7)
Remove front panel to the front carefully.
Optionally internal components may be fixed to the front panel, e.g. UVS,
oxygen sensor, pressure sensor (see fig. 1-21 and 1-27)!
Repeat above steps in reverse order to assemble the housing
Take care not to squeeze internal electrical connections and gas lines when
assembling the housing!
Fastening screws, front panel
F1
F2
F3
F4
F5
N GA 2000
Fastening screws, front panel
Fig. 15-7: MLT3 (standard version) / MLT 4 (1/1 19" housing)
(Fastening screws front panel)
15 - 8
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OPENING OF HOUSING
MLT 3 FOR GAS PURITY MEASUREMENT
15.3.3
Front Panel (MLT 3 gas purity measurement)
15.3.3.1
Operation Front Panel
❍
Unscrew the 6 fastening screws (Fig. 15-8)
Remove operation front panel to the front carefully.
15.3.3.2
❍
Left Front Panel
Unscrew the 4 fastening screws (Fig. 15-8).
Remove left front panel to the front carefully.
Gas lines and optionally internal components may be fixed to the front
panel (see fig. 1-24)!
Repeat above steps in reverse order to assemble the housing
Take care not to squeeze internal electrical connections and gas lines when
assembling the housing!
Fastening screws, left front panel
Fastening screws, operation front panel
F1
F2
F3
F4
Rosemount Analytical
Fastening screws, left front panel
F5
NGA 2000
Fastening screws, operation front panel
Fig. 15-8: MLT3 (gas purity measurement) (1/1 19" housing)
(Fastening screws front panel)
Emerson Process Management GmbH & Co. OHG
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OPENING OF HOUSING
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CAT 200
15.4
CAT 200
EXPLOSION HAZARD!
Opening Instruments installed in hazadous areas is permitted only taking
into consideration the special conditions for such areas !
Refer to the special instruction manual for operating instruments in hazadous
areas to detailled information about handling such equipment !
ELECTRICAL SHOCK HAZARD!
Live parts are accessible when working at open instruments!
HEAVY PARTS!
Individual housing components weigh up to 27 kg !
Dome components slip off when reaching end of threat !
Use suitable tools or work in pairs !
15 - 10
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OPENING OF HOUSING
CAT 200
The CAT 200 housing consists of two main parts:
• junction box
• dome with extender housing
Base
O-Ring
Extender Housing
O-Ring
Retaining Ring
Window
Dome Housing
Fig. 15-9: Cat 200 Enclosure Assembly
The junction box contains an encapsulated EMI mains filter and all the terminals for connecting
mains supply and signal lines. The dome covers all other components, e.g. power supply unit and
analyzer module.
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OPENING OF HOUSING
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CAT 200
15.4.1
Junction Box
❍
Open the junction box by loosening the 6 Allen screws (fig. 15-10) utilizing the (imperial) Allen
key shipped with the instrument.
❍
Remove the cover.
Note!
Assemble the cover utilizing ALL 6 screws to ensure proper IP rating against dust and
water!
Allen screws
(6 pcs)
Fig. 15-10: Cat 200 Junction box
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15.4.2
OPENING OF HOUSING
CAT 200
Dome
To get access to internal components and the analyzer module the dome‘s components have to
be removed (fig. 15-11):
❍
Loosen the outer screw
❍
Turn the dome counterclockwise to remove it
❍
Loosen the inner screw
❍
Turn the extender ring counterclockwise to remove it
Screws fixing dome
components
Fig. 15-11: CAT 200 Dome, fixing screws
❍
When dome is removed unscrew the knurled head screws at the analyzer module‘s sides
(fig. 15-12) and pull it to the front until the last screw locks into the detent (fig. 15-13).
Note!
Mark or remember the detent where the first knurled head screw was placed, to place it there
again when assembling the unit!
Otherwise it may happen the analyzer is not magnetically operable any more because the
distance between front panel and glass it to great.
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OPENING OF HOUSING
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CAT 200
right bracket
analyzer module
plate with
detents
first
middle
knurled head
screw
Fig. 15-12: View at analyzer module
3 detents
Fig. 15-13: Plate with detents
❍
It‘s now possible to pivot the module downwards and to unscrew three additional knurled
head screws to remove the module cover.
Furthermore it is possible to take the module out of the CAT housing after disconnecting all gas
path and electrical connections. This gives access to the components installed inside the cast iron
housing (fig. 5-14).
The analyzer module used within the CAT 200 is identical to a MLT 1 analyzer, except it is
magnetically operated. For this reason see fig. 1-9 to 1-11 when identifying the different
components installed within a CAT 200 analyzer module: These figures show several MLT 1
configurations, also valid for the CAT 200 module.
15 - 14
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OPENING OF HOUSING
CAT 200
Repeat the steps in reverse order to assemble the housing.
When having assembled the dome perform a first test to ensure the front panel sensor keys can
be activated. If all sensor fields are accessible use the screws on top of the dome and extender
ring to fix both units (fig. 15-11).
If the sensor fields not accessible, see at section 15.4.3 to adjust the analyzer with magnetically
operated front panel.
1
2
3
Fig. 15-14: CAT 200,
Cast Iron housing, Interior View
1
2
3
Emerson Process Management GmbH & Co. OHG
Power supply unit
Filter pcb
Fuses for power supply unit
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OPENING OF HOUSING
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CAT 200
15.4.3
Magnetically Operated Front Panel
To ensure safe and faultless operation of the touch panel it is required to have the control elements
(reed relays) installed within a defined distance from the inner side of the security glass.
If it is necessary to remove the CAT 100 dome for maintenance and/or inspection purposes and
to loosen the internal analyzer, the following measures must be followed:
15.4.3.1
Sliding the Analyzer into Position
Set the analyzer module onto the fixture.
Position the dome and fix it turning it clockwise. The inner side of the front glass now should have
contact to the analyzers key pad bar and push the analyzer into the CAT housing.
The front of the key pad bar should now have a distance from the inner side of the dome’s front
glass of between 0 and max. 2 mm (fig. 15-15).
If the distance is bigger, it has to be corrected by repeating the procedure.
Next remove the CAT dome once more.
15.4.3.2
Fixing the Analyzer
Fix the analyzer on the fixture using the screws located at the analyzers left and right side.
15.4.3.3
Completing the Adjustment
Postion the CAT dome and fix it. Make sure the distance is still correct.
15 - 16
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OPENING OF HOUSING
CAT 200
Front glass
Dome
Analyzer
Key pad bar
max. 2 mm
Fig. 15-15: Distance between glass and key pad bar
Emerson Process Management GmbH & Co. OHG
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OPENING OF HOUSING
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Instruction Manual
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16.
FINE DUST FILTER (MLT 3 OPTION)
Fine Dust filter (MLT 3 Option)
The filter element of the in MLT 3 optional installed fine dust filter (see Fig. 1-16a) needs to be checked
for pollution on a regular basis, depending on the application and to be replaced if need be. If the
filter element shows contamination, the element should be immediately replaced with a new unit.
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
HIGH TEMPERATURES !
While working at photometers and/or thermostated components inside the
analyzers hot components may be accessible!
❍
Disconnect all voltage supplies.
❍
Remove front panel (Item 15.3.2).
❍
Removal of filter holder.
❍
Replace the filter element by a new clean element (Order - No.: 42 707 676).
Filter elements are consumables!
Never try to clean polluted elements! Use only new original spare parts for
replacing polluted elements!
Dispose polluted filter elements taking into account the local legislation!
❍
Reinstall filter holder.
❍
Perform a leak testing (see Item 14.).
❍
Close front panel (Item 15.3.2).
Emerson Process Management GmbH & Co. OHG
16 - 1
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FINE DUST FILTER (MLT 3 OPTION)
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17.
REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
GENERAL
Replacement and Cleaning of Photometric Components
The housing has to be opened for checking the electrical connections and for replacement or
cleaning of any of the components of the equipment.
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
ELECTRICAL SHOCK HAZARD!
Live parts are accessible when working at open instruments!
HIGH TEMPERATURES !
While working at photometers and/or thermostated components inside the
analyzers hot components may be accessible!
The electronic parts of the analyzer can be irreparably damaged if exposed
to electrostatic discharge (ESD).
Take care to follow all safety measures against ESD when handling pcb
and/or inside analyzer housing !
Tampering with or unauthorized substitution of components may adversely affect the
safety of this instrument. Use only factory approved components for repair.
Because of the danger of introducing additional hazards, do not perform any unauthorized
modification to this instrument!
Emerson Process Management GmbH & Co. OHG
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Instruction Manual
REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
REMOVAL OF THE PHOTOMETER ASSEMBLY
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Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
17.1
Removal of the Photometer Assembly
❍
Open the housing (cf. Section 15).
❍
Disconnect all electrical connections between photometer assembly and electronic unit
(PCB PIC) and remove all gas lines from the photometer assembly if necessary.
❍
Unscrew both the hexagonal screws shown in Fig. 17-1.
❍
Remove the photometer assembly to top of analyzer housing as a unit.
hexagonal screw
hexagonal screw
Fig. 17-1: Photometer Assembly, example
(Top view, detail)
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17.2
REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
LIGHT SOURCE REPLACEMENT
Light Source Replacement (IR)
❍
Open the housing (cf. Section 15).
❍
Remove the photometer assembly out of analyzer housing (see Section 17.1).
❍
Remove the two light source hexagonal mounting screws (shown in Fig. 17-2 as Item 1).
❍
Remove the light source together with its mounting flange.
❍
Remove the mounting flange from the light source and position it on the new light source.
❍
Insert the new light source and flange in the same position as the old one.
❍
Insert and tighten the two light source hexagonal mounting screws (Fig. 17-2).
Then:
❍
Replace the photometer assembly (see Section 17.4).
❍
Perform the physical zeroing procedure (see Section 17.5).
3
1
2
2
1
4
Fig. 17-2: Chopper Housing with IR light sources
1
2
3
4
Light source hexagonal mounting screw
Light source with mounting flange
Temperature sensor (older versions)
Chopper Housing
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REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
REMOVAL OF ANALYSIS CELLS
17.3
Cleaning of Analysis Cells and Windows
17.3.1
Removal of Analysis Cells
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❍
Open the housing (cf. Section 15).
❍
Remove the photometer assembly out of analyzer housing (see Section 17.1).
a)
For analysis cells of lengths 1 mm to 10 mm
❍
❍
Remove the clamp (Fig. 17-3, Item 1).
Remove the clamping collars and the filter cell with signal detector assembly.
1
Fig. 17-3: Photometer Assembly (1 mm to 10 mm analysisi cells)
b)
For analysis cells of lengths 30 mm to 200 mm:
❍
❍
❍
❍
Remove the clamp shown in Fig. 17-4 as Item 1.
Remove the filter cell with signal detector assembly.
Remove the clamp shown in Fig. 17-4 as Item 2.
Remove the analysis cell body from the filter cell (chopper housing).
adapter with
zero-point diaphragm
1
2
detector
Fig. 17-4: Photometer Assembly (30 mm to 200 mm analysisi cells)
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17.3.2
a)
NGA 2000 MLT Hardware
REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
CLEANING
Cleaning
Windows
The shielding windows (on the filter cells, chopper housing and the analysis cell) may be cleaned
with a soft, fluff free cloth.
Use a highly volatile alcohol for the cleaning procedure.
To remove any lint and dust particles remaining, blow off the cleaned components with nitrogen
(N2).
b)
non-divided analysis cells
The analysis cell may be cleaned with a soft, fluff free cloth.
Use a highly volatile alcohol for the cleaning procedure.
To remove any lint and dust particles remaining, blow off analysis cell with nitrogen (N2).
c)
divided analysis cells
If deposits are visible in the analysis cell, these can be removed with suitable solvents e. g. acetone
or spirit. Then the analysis cell is to be flushed with an alcohol which evaporates easily and dried
by blowing nitrogen (N2).
Maxi. pressure in analysis cell 1.500 hPa !
Emerson Process Management GmbH & Co. OHG
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REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
REINSTALLING OF ANALYSIS CELLS
17.3.3
a)
b)
90002929
07/2006
Reinstalling of Analysis Cells
For analysis cells of lengths 1 mm and 7 mm
❍
Place the O - rings on the filter cells.
❍
Fit the components together and fix with the clamping collars.
❍
Install the clamp (Fig. 17-3, Item 1) and tighten.
Analysis cells of lengths 50 mm - 200 mm:
❍
Place the O - ring on the chopper housing side of the cell body.
❍
Position the cell body in place and fasten using the clamp shown in Fig. 17-4 as
Item 2.
❍
Place the O - ring on the filter cell (with detector).
❍
Fit the filter cell on the cell body.
❍
Install the clamp shown in Fig. 17-4 as Item 1 and tighten.
Then:
❍
17 - 6
Replace the photometer assembly (see Section 17.4).
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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07/2006
17.4
NGA 2000 MLT Hardware
REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
REINSTALLING OF THE PHOTOMETER ASSEMBLY
Reinstalling of the Photometer Assembly
❍
Insert the photometer assembly into the analyzer housing and fasten in position using
the hexagonal screws shown in Fig. 17-1.
❍
Reconnect all gas lines to the assembly.
❍
Reconnect all electrical connections between the photometer assembly and the electronic
unit PCB PIC (see Section 1.9.4).
❍
Perform a leakage test (see Section 14).
❍
Perform the physical zeroing procedure (see Section 17.5).
Emerson Process Management GmbH & Co. OHG
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REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
PHYSICAL ZEROING
17.5
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Physical Zeroing
Adjustment of the physical zero - level will only be required if a light source, a filter cell, or an analysis
cell have been replaced or repositionned.
Needed for the adjustment is a 3 mm hexagon wrench SW 3.
❍
Switch on the analyzer (cf. Section 6.).
❍
Admit zero gas to the instrument.
❍
Slightly loosen the light source mounting screws (shown in Fig. 17-2 as Item 1) for
correspondend channel.
❍
Set the raw signal [(press "Status" (F2) → "RawMeas." (F2)] precisely to ± 100.000 counts
by turning the corresponding light source.
❍
Tighten the light source mounting screws (shown in Fig. 17-2 as Item 1) for correspondend
channel.
If the turning of the light source is not sufficient, the zero point can be adjusted by sliding the zero
point diaphragm at the downer side of the detectors adapter (Fig. 17-4).
When the physical zeroing has been correctly set, perform an electrical zeroing (see software
manual).
17 - 8
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Instruction Manual
NGA 2000 MLT Hardware
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07/2006
18.
CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
GENERAL
Check / Replacement of electrochemical Oxygen Sensor
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
CAUSTIC !
The electrochemical O2-sensor contains electrolyte which is caustic and
can cause serious burns to skin. Do not ingest contents of sensor !
The electronic parts of the analyzer can be irreparably damaged if exposed
to electrostatic discharge (ESD).
Take care to follow all safety measures against ESD when handling pcb
and/or inside analyzer housing !
Tampering with or unauthorized substitution of components may adversely affect the
safety of this instrument. Use only factory approved components for repair.
Because of the danger of introducing additional hazards, do not perform any unauthorized
modification to this instrument!
Take care of the safety instructions as given at the beginning of this manual
while working at and inside the instruments!
Working inside the instruments is subject to briefed personnel familiar with
potential risks!
Emerson Process Management GmbH & Co. OHG
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CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
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EO2-SENSOR
18.1
EO2-Sensor
Through measuring principle the oxygen sensor will have only a limited life time.
The life time of the oxygen sensor is dependent on the sensor itself and on the measured oxygen
concentration and is calculated as follows:
life time =
sensor time (hours)
O2 concentration (%)
The so-called “sensor time” (operation without oxygen at 20 °C ) is
approx. 900.000 hours for sensor with a response time of about 12 s
The sensors will have the following life time at approx. 21 % Oxygen and 20 °C :
approx. 42.857 hours (approx. 5 years) for sensor with a response time of about 12 s
Note !
The given values are for reference only! The expected lifetime is greatly affected by the
temperature of the environment in which the sensor is used or stored. Increases or decreases in
atmospheric pressure have the same effect as that by increases or decreases in Oxygen
concentration. (Operation at 40 °C halves lifetime)..
Note !
Depending on measuring principle the electrochemical EO2 cell needs a minimum internal
consumption of oxygen (residual humidity avoids drying of the cell). Admit cells continuously with
sample gas of low grade oxygen concentration or with oxygenfree sample gas could result a
reversible detuning of O2 sensitivity. The output signal will become instabil.
For correct measurement the cells have to admit with a O2 concentration of at least 0.1 Vol.-%.
We recommend to use the cells in intervall measurement [purge cells with conditioned (dust
removal but no drying) ambient air at measurement breaks].
If it is necessary to interrupt oxygen supply for several hours or days, the cell have to regenerate
(supply cell for about one day with ambient air). Temporary flushing with nitrogen (N2) for less than
1 h (e.g. analyzer zeroing) will have no influence to measuring value.
All analyzers with electrochemical EO2 cell have to be purged with conditioned ambient air prior
to disconnect the gas lines ! Then the gas line fittings have to be closed for transport or depositing
analyzer.
18 - 2
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18.2
CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
CHECK OF EO2-SENSOR
Check of the EO2-Sensor
Exchange the sensor, if the voltage is less than 70 % of the initially output voltage.
The check requires a digital voltmeter (DVM) with a range of 2 V DC.
❍
Remove front panel (see 15.).
❍
Switch On the analyzer (see Section 6.).
❍
Admit ambient air to the analyzer (approx. 21 Vol. - O2).
❍
Connect the DVM to the measuring points
Tp 1 (Signal) and Tp 2 ( ⊥ ) of the PCB OXS, mounted directly at the connection block
(Fig. 18-1, see also Fig. 18-2, 1-3, 1-16a and 1-17).
The measuring signal should be into a range of 700 mV DC to 1000 mV DC.
Note !
If the measuring value is lower than 700 mV at gas flow with ambient air, the sensor is consumed.
Exchange the sensor.
Tp 2
Tp 1
Potentiometer “R4”
Fig. 18-1: PCB “OXS”, assembled, horizontal projection
Emerson Process Management GmbH & Co. OHG
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CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
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REPLACEMENT OF EO2-SENSOR
18.3
Replacement of the EO2-Sensor
18.3.1
Removal of the EO2-Sensor
❍
Remove front panel (see Item 15.).
❍
MLT 1 only:
Remove the fastening hexagon nuts of the connection block (Fig. 18-2) with hexagon
spanner (SW 5.5) and remove connection block including oxygen sensor from front panel.
PCB “OXS”
OUT
IN
Fastening nut
connection block O2 sensor
Fig. 18-2: MLT 1, front panel, rear view
18 - 4
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18.3.2
NGA 2000 MLT Hardware
CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
EXCHANJGE / REINSTALLING OF EO2-SENSOR
Replacing the EO2-Sensor
❍
Disconnect the connector for the sensor from “P2” of circuit board “OXS” (see Fig. 18-3).
❍
Take the consumed sensor out of the fitting.
❍
Take off the stopper from new sensor and fit in the new sensor into the fitting, so
that the name plate is at the top of the sensor.
❍
Connect the connector for the sensor to “P2” of circuit board “OXS” (see Fig. 18-3).
❍
Close the spent sensor with the stopper and dispose in accordance with respective
legislation or send it to our factory alternatively.
18.3.3
Reinstalling of the EO2-Sensor
❍
MLT 1 only:
Put connection block with the (new) sensor onto the front panel and srew the fastening
hexagon nuts of the connection block (Fig. 18-2) with hexagon spanner (SW 5.5).
❍
Perform a leakage test (see Section 14.) and set the sensor (see Section 18.2.4).
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BASIC CONDITIONS FOR EO2-SENSOR
18.3.4
Basic conditions for the EO2-Sensor
❍
Admit ambient air for the analyzer (approx. 21 Vol. - O2) and switch on (see Section 6.).
❍
Connect the DVM to the measuring points
Tp 1 (Signal) and Tp 2 ( ⊥ ) of the PCB OXS, mounted directly at the sensor block
(Fig. 18-1, see also Fig. 18-2, 1-3, 1-16a and 1-17).
❍
Set the signal to 1000 mV DC (± 5 mV) with potentiometer R4 (Fig. 18-3) of the
corresponding circuit board “OXS”.
Note !
It is not allowed to change this setting for this sensor again !
❍
Switch off the analyzer and close the analyzer housing (see 15.).
Built-in the module into platform if necessary.
❍
A complete re-calibration of the instrument must be performed after a sensor - replacement.
Tp 2
Tp 1
Potentiometer “R4”
Connection
oxygen sensor
(“P2”)
Fig. 18-3: PCB “OXS”, assembled, horizontal projection
18 - 6
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Instruction Manual
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18.4
NGA 2000 MLT Hardware
CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
TEO2-SENSOR
TEO2-Sensor
The TEO2 cell is a fuel cell which measures oxygen concentration by oxidizing a lead oxide.
The electrical charge per oxidation cycle yields a current directly proportional to the oxygen
concentration. This is current is measured, calibrated and displayed. The over all reduction
capacity of the cell gives a limited lifetime of the cell.
Under normal operation conditions (low levels of O2) the lifetime exceeds 6 months. At elevated
concentrations however the lifetime decreases. At end of life the cell has to be replaced by a spare
part.
❍
Switch analyzer to its “purging/zero gas mode” via analyzers operating front panel keys
(see Software Manual).
❍
Remove the cover and the screws on top of the cell.
CAUSTIC !
The electrochemical O2-sensor contains electrolyte which is caustic and
can cause serious burns to skin. Do not ingest contents of sensor !
❍
Remove existing sensor and dispose of in accordance with national, federal, state, and local
regulations.
❍
Inspect inside of cellblock for signs of residual liquid or deposits on the contact pins.
If liquid is present, use appropriate protective equipment. Deposits on the contact pins can
be removed by wiping with a damp cloth or using the eraser from a pencil. Do not use
abrasives (i.e. sandpaper) as this will damage the contact pins.
❍
Control the O-rings. If they have any damages replace them.
❍
Unpack the replacement sensor and remove the short circuit plug from the new cell.
❍
Push the new cell in the o-ring holder of the housing lid
(the contact side to the lid, the gas diaphragm side to the bottom of the cell housing).
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CHECK AND REPLACEMENT OF ELECTROCHEMICAL OXYGEN SENSOR
❍
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Place the lid on the housing, fasten the screws and close the cover.
Purge gas paths with inert gas (nitrogen (N2)) or sample gas as soon as
possible to avoid prolonged exposure of the sensor to high concentrations of oxygen.
The longer the sensor is exposed to air, the longer it will take for the sensor to recover to low ppm levels. When installing a new sensor or starting
the instrument for the first time, it may take as long as eight hours for the
analyzer to purge down to the lowest operating range.
Prolonged exposure of the sensor to air can cause extended start up time,
reduction of performance or damage to the sensor.
❍
Perform adjustment of sensor (chapter 7.)
Notes for analyzers with electrochemical TEO2 cell!
For TEO2 sensor please note that the gas inlet and outlet connections of the analyzer are sealed
to prevent exposure of the sensor to air.
Prolonged exposure of the sensor to air can cause extended start up time, reduction of
performance or damage to the sensor. Do not remove the sealing caps until all associated sample
handling components are installed and the instrument is fully ready for installation.
After replacement purge gas paths with inert gas (nitrogen (N2)) or sample gas as soon as possible
to avoid prolonged exposure of the sensor to high concentrations of oxygen.
The longer the sensor is exposed to air, the longer it will take for the sensor to recover to low ppm
levels. When installing a new sensor or starting the instrument for the first time, it may take as long
as eight hours for the analyzer to purge down to the lowest operating range.
Prolonged exposure of the sensor to air can cause extended start up time, reduction of
performance or damage to the sensor.
After initial startup or startup following a prolonged shutdown, the analyzer may require extended
time to recover to the range of measurement. Commonly, this is caused by the introduction of
ambient air into the sample and/or vent lines to the sensor. The presence of higher than normal
levels of oxygen at the sensor will cause the sensor electrolyte to become saturated with dissolved
oxygen. When the instrument is placed in operation, the sensor must now consume all excess
dissolved oxygen above the desired measuring level.
All analyzers with electrochemical TEO2 cell have to be purged with inert gas (Nitrogen, N2) prior
to disconnect the gas lines ! Then the gas line fittings have to be closed for transport or depositing
analyzer.
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19.
CLEANING OF HOUSING OUTSIDE
Cleaning of Housing Outside
Use a liquid general purpose detergent and a lint-free cloth for cleaning the analyzer´s outside.
Procedure
❍
Disconnect instrument from mains!
Before opening gas paths they must be purged with ambient air or
neutral gas (N2) to avoid hazards caused by toxic, flammable,
explosive or harmful to health sample gas components!
If opening the gas paths is required seal the open analyzer´s gas fittings
utilizing PVC caps to avoid pollution of inner gas path.
❍
Moisten the lint-free cloth with a mixture of 3 parts of water and 1 part of the general purpose
detergent.
Do NOT drench the cloth, just moisten it to avoid liquid entering the
housing!
❍
Clean the analyzer housing outside with the moistend cloth
❍
If required dry the housing after cleaning
Emerson Process Management GmbH & Co. OHG
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CLEANING OF HOUSING OUTSIDE
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Instruction Manual
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Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
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20.
TECHNICAL DATA
HOUSING
Technical Data
Certifications
EN 61326, EN 61010-1
(for measurment of not flammable gases or not
explosive gases resp. (< 50 % LEL).
Bigger concentrations requires supplementary
NAMUR, CSA-C/US*), C-Tick, PAC, BRML
GOSST: VNIIMS, Pattern (Belarussia)
protective measures !)
*)
PCB EXI 01
EC TYPE-EXAMINATION CERTIFICATION
TUEV Nord report No.: 98 ATEX 1341 X
FDA Test: 0-10 ppm CO (MLT1/3)
TUEV Nord report No.: 98 CU 012
Suitability tests (MCERTS/TUEV/QAL 1):
936/806017/A&D (MLT 1/ 2)
936/806017/B&E (MLT 2/ 3 / 4)
- MLT 1
- MLT 2
- MLT 3/ MLT 4
- MLT 1/ MLT 2
- MLT 2/ MLT 3/ MLT 4
CO/NO/NO2/SO2/O2 measurement
TI Air, 13th BImSchV
TI Air, 13th BImSchV, 17th BImSchV
Sira MC 050051/00
Sira MC 050052/01
Sira MC 050053/01
QAL 1 (EN 14181, EN ISO 14956)
QAL 1 (EN 14181, EN ISO 14956)
20.1
Housing
Gas connections:
- Sample gas
- Reference gas
- Purge gas
see dimensionsl skteches (Fig. 20-1 to 20-8)
Standard 6/4 mm PVDF
Option:
6/4 mm or 1/4", ss
MLT 1
max. 8 fittings
MLT 2
max. 6 fittings
MLT 3
max. 4 fittings
MLT 4
max. 6 fittings
max. 11 fittings
CAT 200
Weight (depending on configuration)
MLT 1
MLT 2 (standard version)
MLT 3/4
CAT 200
Emerson Process Management GmbH & Co. OHG
MLT 2-NF (“Non-Flammable sample only”):
USA:
Class I, Zone 2, Ex p II T4
Canada: AEx p II T4
approx. 8 - 13 kg
approx. 30 - 35 kg
approx. 13 - 18 kg
approx. 55 - 70 kg
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NGA 2000 MLT Hardware
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TECHNICAL DATA
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HOUSING / OPTIONS
Protection class
MLT 1/3/4
MLT 2
CAT 200
(according to DIN standard 40050)
IP 20
IP 65 (NEMA4/4X)
IP 55 (IP 66 w/o breather), optional with
internal tropicalization
Data line & main line glands
EEx e II KEMA, cable diameter 7 to 12 mm
Permissible ambient temperature (operation):
- MLT 1/ MLT 2/ MLT 3/ MLT 4
- CAT 200
+ 5 to + 40 °C (45 °C as option, not EO2)
0 to 50 °C; -30°C (GP & CSA-C/US only)
Permissible storage temperature
- 20 °C to + 70 °C
Humidity (non condensing)
< 90 % rel. humidity at + 20 °C
< 70 % rel. humidity at + 40 °C
Rain / Drop and splash water
The MLT must not be exposed to rain or
drop/splash water
Explosive atmosphere
The MLT must not be operated in explosive
atmosphere without supplementary
protective measures
Ventilation
Free flow of air into and out of the MLT
(ventilation slits) must not be hindered by
nearby objects or walls !
Altitude
0-2000 m (above sea level)
20.2
Options
Pressure sensor
Measuring range 800 - 1,100 hPa
Fine dust filter (MLT 3)
Filter material PTFE, Pore size approx. 2 μm
Sample gas pump (MLT 3)
Pumping rate max. 2.5 l/min.
Suction pressure min. 900 hPa
For mobile application of MLT only !
Lifetime max. 5,000 running hours !
20 - 2
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20.3
TECHNICAL DATA
GENERAL SPECIFICATIONS
General Specifications
Measuring components
see order confirmation
Measuring ranges
NDIR/VIS/UV
see order confirmation
paramagnetic oxygen sensor (PO2)
0 - 5 % to 0 - 100 % O2 or
0 - 2 % to 0 - 25 % O2
0 - 1 % to 0 - 10 % O2 *)
electrochemical oxygen sensor (EO2)
0 - 5 % O2 to 0 - 25 % O2 **)
trace electrochemical oxygen sensor (TEO2)
0 - 100 ppm O2 to 0 - 5,000 ppm O2 ***)
thermal conductivity sensor (TC)
0 - 2 % to 0 - 100 % H2
0 - 1 % H2 *)
0 - 50 % to 0 - 100 % Ar
0 - 30 % to 0 - 100 % CO2
0 - 10 % to 0 - 100 % He
*) non standard specifications
**) higher measuring ranges reduce sensor lifetime
***) lower measuring ranges on request (c.f.)
Emerson Process Management GmbH & Co. OHG
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TECHNICAL DATA
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GENERAL SPECIFICATIONS
Specifications of MLT:
Table 20-1
NDIR / VIS / UV
Oxygen Sensor
(PO2 and EO2)
Thermal
Conductivity (TC)
Detection limit
Linearity
Zero-point drift
Span (sensitivity) drift
Repeatability
≤ 1 % 1) 4)
≤ 1 % 1) 4)
≤ 2 % per week 1) 4)
≤ 0.5 % per week 1) 4)
≤ 1 % 1) 4)
≤ 1 % 1) 4)
≤ 1 % 1) 4)
≤ 2 % per week 1) 4)
≤ 1 % per week 1)
≤ 1 % 1) 4)
Response time (t90)
3 s ≤ t90 ≤ 7 s 3)
< 4 s (increasing) 3) 6) 3 s ≤ t90 ≤ 20 s 3)
< 5 s (decreasing) 3) 6)
approx. 12 s 3) 13)
Permissible gas flow
0.2 - 1.5 l/min
5)
Influence of gas flow
≤ 2 % 1) 4)
≤ 1 % 1) 4)
≤ 2 % per week 1) 4)
≤ 1 % per week 1) 4)
≤ 1 % 1) 4)
7)
0.2 - 1.0 l/min 6)
0.2 - 1.5 l/min 13)
≤ 2 % 1) 4)
0.2 - 1.0 (+/- 0.1) l/min
≤ 1 % 1)
4)
Permissible pressure
≤ 1,500 hPa abs.
≤ 1,500 hPa abs. 14)
≤ 1,500 hPa abs.
Influence of pressure
(at constant temperature)
(with pressure compensation) 8)
≤ 0.10 % per hPa 2)
≤ 0.01 % per hPa 2)
≤ 0.10 % per hPa 2)
≤ 0.01 % per hPa 2)
≤ 0.10 % per hPa 2)
≤ 0.01 % per hPa 2)
Influence of temperature
(pressure constant)
- on zero point
- on span (sensitivity)
≤ 1 % per 10 K 1)
± 5 % (+5 to +40 °C) 1) 11)
≤ 1 % per 10 K 1)
≤ 1 % per 10 K 1)
≤ 1 % per 10 K in 1 h 1)
≤ 2 % per 10 K in 1 h 1)
Thermostatting
Heating-up time
approx. 55 °C 9)
approx. 55 °C 6) 10) 13)
none 13)
approx. 15 to 50 minutes 5) 15 to 50 minutes 5)
1) related to full scale
2) related to measuring value
3) from analyzer gas inlet at gas flow of approx. 1.0 l/min.
(electrical = 2 s)
4) constant pressure and temperature
5) dependent on integrated photomoter bench / sensor
6) paramagnetic oxygen measurement (PO2)
7) depending on sensor position
20 - 4
approx. 75 °C 12)
approx. 15 to 50 minutes
8) optional pressure sensor is required
9) standard 55 °C, optional 65 °C, not for MLT 1
10) located in thermostated chamber (MLT 2/3/4) /
thermostated sensor (MLT 1/2)
11) starting from +20 °C (to +5 °C or to + 40 °C)
12) sensor / cell only
13) electrochemical oxygen measurement (EO2),
not located in thermostated chamber
14) no sudden surge for PO2 allowed!
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
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TECHNICAL DATA
SPECIFICATIONS ULCO
Altered NDIR/VIS/UV-Specifications of MLT-ULCO compared to table 20-1:
Table 20-2
COultra low
CO2, ultra low
Detection limit
Linearity
Zero-point drift
Span (sensitivity) drift
Repeatability
Response time (t90)
Influence of gas flow
Influence of temperature
(pressure constant)
- on zero point
- on span (sensitivity)
Thermostatting
≤ 0.2 ppm 3)
≤ ± 1 % of NV 3) (NV ≥ lowest range)
≤ ± 0.2 ppm in 24 hr 3)
≤ ± 0.2 ppm in 24 hr 3)
≤ ± 0.2 ppm 3)
< 7 s 5) 6) (< 4 s 6) 7))
≤ ± 2 % 1) 3)
≤ 1 % 1) 3)
≤ ± 1 % of NV 3) (NV ≥ 10 % of lowest range)
≤ 2 % per week 1) 3)
≤ 0.5 % per week 1) 3)
≤ 1 % 1) 3)
3 s ≤ t90 ≤ 7 s 6) 7)
≤ ± 1 % 1) 3)
≤ ± 5 % (+ 5 °C to + 40 °C) 1) 4)
≤ ± 5 % (+ 5 °C to + 40 °C) 1) 4)
none
≤ ± 1 % per 10 K 1)
≤ ± 5 % (+ 5 °C to + 40 °C) 1) 4)
none
1)
3)
5)
7)
0 - 10 ppm
0 - 5 ppm
related to full scale
constant pressure and temperature
from analyzer gas inlet at gas flow of approx. 1.0 l/min. (electrical = 4 s)
from analyzer gas inlet at gas flow of approx. 1.0 l/min. (electrical = 2 s)
Cross sensitivities
electrochemical oxygen measurement
paramagnetic oxygen measurement
COlow 0 - 50 ... 2,500 ppm
COhigh 0 - 0.5 ... 10 %
CO2
01 ... 12 % 2)
2) CO2 0 - 1 ... 15 % on request
4) starting from +20 °C (to +5 °C or to + 40 °C)
6) dependent on integrated photomoter bench
NV = Nominal value
Not for use with sample gases containing
FCHC´s !
100 % Gas
N2
CO2
H2
Ar
Ne
He
CO
CH4
C2 H6
C2 H4
C3 H8
C3 H6
NO
NO2
N2O
Emerson Process Management GmbH & Co. OHG
zero-level effect % O2
0,00
- 0,27
+ 0,24
- 0,22
+ 0,13
+ 0,30
+ 0,01
- 0,20
- 0,46
- 0,26
- 0,86
- 0,55
+ 43,0
+ 28,0
- 0,20
20 - 5
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
90002929
07/2006
DIMENSIONS MLT 1
Analyzer module for platform mounting
Network
NETWORK
ME - +
Front view
(network/24 V dc for platform mounting only)
24 VDC / IN
Rear view
(network/24 V dc for outside mounting only)
CAUTION !
Use either
front
OR
rear
supply
Side view
Analyzer / analyzer module for rack mounting / table-top
Front view (analyzer module with blank plate)
Rear view
Side view
Fig. 20-1: Dimensional sketch MLT 1 [all dimensions in mm]
20 - 6
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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90002929
07/2006
TECHNICAL DATA
DIMENSIONS MLT 2
550
492
300
332
approx. 355
10
18
Glands
(connection cables)
18
Fig. 20-2: Dimensional sketch / Drill drawing MLT 2 Standard version [all dimensions in mm]
550
492
approx. 355
603
635
300
38 38 38
10
glands
(connection cables)
27
18
43
18
280
16
Gas connections
Fig. 20-3: Dimensional sketch / Drill drawing MLT 2 Dual housing version [all dimensions in mm]
Emerson Process Management GmbH & Co. OHG
20 - 7
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
90002929
07/2006
DIMENSIONS MLT 2
SAMPLE IN
SAMPLE OUT
PURGE IN
95
PURGE OUT
75
38
135
60
40
105
45
113
40
25
80
113
Fig. 20-4: Dimensional sketch MLT 2 for Ex Zone 2 in standard housing [all dimensions in mm]
approx. 355
5
120
182
5
90
50
Control Unit
Solenoid Valve
(PURGE IN)
13
220
approx. 356
PURGE OUT
38
Fig. 20-5: Dimensional sketch MLT 2 for Ex Zone 1 in standard housing [all dimensions in mm]
20 - 8
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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90002929
07/2006
TECHNICAL DATA
DIMENSIONS MLT 3 / 4
30
40
PURGE IN
SAMPLE IN
SAMPLE OUT
PURGE OUT
25
75
38
105
135
140
57.1
132.5
Fig. 20-6: Dimensional sketch MLT 2 for Ex Zones
with “Z Purge” (MLT 2-NF) or “Continuous purge” in standard housing [all dimensions in mm]
448.8
465.1
483
approx. 537
approx. 488
Front view
Top view
Fig. 20-7: Dimensional sketch MLT 3/4 [all dimensions in mm]
Emerson Process Management GmbH & Co. OHG
20 - 9
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
90002929
07/2006
DIMENSIONS CAT 200
(14.3)
(27)
(0.85)
(0
.6
3)
(13)
(25.4)
Fig. 20-8: Dimensional sketch / Drill drawing CAT 200 [all dimensions in mm (Inch)]
20 - 10
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
01/2007
NGA 2000 MLT Hardware
TECHNICAL DATA
VOLTAGE SUPPLY: ANALYZERS
20.4
Voltage supply
20.4.1
Analyzers
20.4.1.1 MLT 1/4
Input
Voltage Supply
3-pole XLR- Flange (male), lockable
24 V dc (+/- 5 %) / 3 A (MLT 1) / 5 A (MLT 4)
[For ac operation {230/120 V}
dc supply by options SL10, SL5 (both for rack
mounting only) UPS 01 T, or equivalent power supply]
20.4.1.2 MLT 2/3
Input
integrated power supply
terminal strips (MLT 2) / plug (MLT 3)
MLT 2:
SL5 or SL10
MLT 3
UPS
Power Consumption MLT 2
Fuses MLT 2 (internal)
max. 700 VA
T 6.3A/250 V (2 pcs.)
20.4.1.3 CAT 200
Connection via screw terminal blocks in
junction box, cross section:
Rated input voltage
Input voltage range
Rated input power
4 mm2 max.
115-230 V
50/60 Hz
90 - 264 V , 47 - 63 Hz
max. 380 W
20.4.1.4
Electrical Safety
Over-voltage category
Pollution degree
Safety Class
all I/O´s
Emerson Process Management GmbH & Co. OHG
II
2
2 for MLT 1/4 instruments.
1 for MLT 2/3 instruments
SELV voltage
optically isolated to electrical supply
20 - 11
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
90002929
07/2006
POWER SUPPLIES: UPS01T
20.4.2
Power Supplies
20.4.2.1 UPS 01 T (Universal Power Supply)
This power supply unit may be ordered for supplying tabletop analyzers and rack mount analyzers
not requiring a rail mounted power supply.
Model designation
UPS 01 T
Input
Rated input voltage
Input voltage range
Rated input power
Input connector
120 / 230 V
50/60 Hz
99 - 138 / 187-264 V
max. 240 VA
IEC plug (fig. 1-58a)
Output
Rated output voltage
Rated output current
Output connector
24 V
(+- 5 %)
max. 5 A
3 pole XLR socket (fig. 1-58b)
Protection measures
Overload protection
Current limitation, typ. 110% Irated,
straight characteristic, output permanent
short-circuit proof
Overtemperature protection
Reduction of output voltage until unit
switches off. Return to normal operation
after cooling down.
Weight
approx. 2.5 kg
Compliances
Electrical safety
Electromagnetic compatibility
20 - 12
EN 60950, UL1950, CSA22.2 NO 950-95
EN 50081-1 (emmision)
EN 50082-2 (immunity)
and others
Emerson Process Management GmbH & Co. OHG
Instruction Manual
NGA 2000 MLT Hardware
90002929
07/2006
TECHNICAL DATA
275.3
57.7
54.2
POWER SUPPLIES: UPS01T
105.9
Fig. 20-9: Dimensional sketch UPS 01 T (Universal Power Supply), table-top version
rack module turn around 90° [all dimensions in mm, without cable and plugs]
PE
Fig. 20-10a: IEC mains input plug
(shield)
2
Pin 1:
Pin 2:
Pin 3:
Shield:
3
1
ME
+ 24 V
⊥)
0 V (⊥
Housing
Fig. 20-10b: 24 V DC output socket
Pin assignment
Emerson Process Management GmbH & Co. OHG
20 - 13
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
POWER SUPPLIES: EXTERNAL 5A POWER SUPPLY FOR DIN RAIL INSTALLATION
20.4.2.2
90002929
07/2006
External 5A Power Supply Unit for DIN Rail Installation
This power supply unit may be ordered for supplying analyzers installed in a rack, where mounting
the power supply on a DIN rail is required.
Model designation
Input
Rated input voltage (manual switch)
Input voltage range
Rated input current
SL5
Input
100-120 / 220-240 V
50/60 Hz
85 - 132 / 176 - 264 V , 47 - 63 Hz
< 2.6 A (switch at 115 V position)
< 1.4 A (switch at 230 V position)
Screw terminals at front (bottom)
Output
Rated voltage
Output current
Output
24 V
(+ 5 %, -1 %)
max. 5 A
Screw terminals at front (top)
Efficiency
Efficiency
Losses
typ. 90 %
typ. 13.3 W
Protection Measures
Overload protection
Overtemperature protection
Design and Installation
Weight
Dimensions (w x h x d)
Spacing for cooling
Compliances
Electrical safety
Electromagnetic compatibility
20 - 14
(230 VAC, 24 V / 5 A)
(230 VAC, 24 V / 5 A)
against short circuit, overload and
open circuit
Derating > 60° C
ca. 0.62 kg
65 mm x 125 mm x 103 mm
above / below 25 mm each
left / right sides 15 mm each
EN 60950, EN 50178, UL1950,
CSA22.2 Nr. 234-M90
EN 50081-1, class B (emission )
EN 50082-2, class A (immunity)
and others
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
NGA 2000 MLT Hardware
TECHNICAL DATA
POWER SUPPLIES: EXTERNAL 5A POWER SUPPLY FOR DIN RAIL INSTALLATION
Right side
Front side
Bottom side
Fig. 20-11: Power Supply SL5
Dimensions (approx. [mm])
Emerson Process Management GmbH & Co. OHG
20 - 15
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
POWER SUPPLIES: EXTERNAL 10A POWER SUPPLY FOR DIN RAIL INSTALLATION
20.4.2.3
90002929
07/2006
External 10A Power Supply Unit for DIN Rail Installation
This power supply unit may be ordered for supplying analyzers installed in a rack, where mounting
the power supply on a DIN rail is required.
Model designation
Input
Rated input voltage (manual switch)
Input voltage range
Rated input current
SL10
Input
100-120 / 220-240 V
50/60 Hz
85 - 132 / 176 - 264 V , 47 - 63 Hz
< 6 A (switch at 115 V position)
< 2.8 A (switch at 230V position)
Screw terminals at front (left side)
Output
Rated voltage
Output current
Output
24 V
(+ 5 %, -1 %)
max. 10 A
Screw terminals at front (right side)
Efficiency
Efficiency
Losses
typ. 89 %
typ. 29 W
Protection Measures
Overload protection
Overtemperature protection
Design and Installation
Weight
Dimensions (w x h x d)
Spacing for cooling
Compliances
Electrical safety
Electromagnetic compatibility
20 - 16
(230 VAC, 24 V / 10 A)
(230 VAC, 24 V / 10 A)
against short circuit, overload and
open circuit
Derating > 60° C
approx. 1.2 kg
120 mm x 124 mm x 102 mm
above / below 25 mm each
left / right sides 15 mm each
EN 60950, EN 50178, UL1950,
CSA22.2 Nr. 234-M90
EN 50081-1, class B (emission)
EN 50082-2, class A (immunity)
and others
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
NGA 2000 MLT Hardware
TECHNICAL DATA
POWER SUPPLIES: EXTERNAL 10A POWER SUPPLY FOR DIN RAIL INSTALLATION
Right side
Front side
Bottom side
Fig. 20-12:Power Supply SL 10
Dimensions (approx. [mm])
Emerson Process Management GmbH & Co. OHG
20 - 17
NGA 2000 MLT Hardware
Instruction Manual
TECHNICAL DATA
90002929
07/2006
POWER SUPPLIES: TABLETOP POWER SUPPLY UNITS
20.4.2.4
Tabletop Power Supply Units
This power supply unit may be ordered for supplying two tabletop analyzers by one shared
power supply unit.
A variation for installation in a module rack is available, too, with output currents of 10 A or
5 A.
Model designations
10 A tabletop power supply unit
10 A rack module power supply unit
5 A rack module power supply unit
For electrical input and output data, efficiency, protection measures and compliances (internal
power supply unit only) see
section 20.4.2.3 for 10 A versions
section 20.4.2.2 for 5 A version.
Design and Installation
Dimensions, approx. (w x h x d)
Spacing for cooling
142 mm x 260 mm x 128 mm
front / rear side 15 mm each
Rear side
Front side
Interior view (cover removed)
Fig. 20-13: 10 A Tabletop Power Supply
Dimensions (approx. [mm])
20 - 18
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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90002929
07/2006
21.
PIN ASSIGNMENTS
VOLTAGE INPUT
Pin Assignments
To stay in compliance with regulations regarding electromagnetic compatibility it is recommended to use only shielded cables, as optionally available from Emerson Process Management or equivalent. Customer has to
take care that the shield is connected in proper way. Shield and signal connector enclosure need to be conductively connected, submin-d plugs and
sockets must be screwed to the analyzer.
Using external submin-d-to-terminal adaptor elements (option) affects electromagnetic compatibility. In this case the customer has to take measures
to stayin compliance and has to declare conformity, when required by legislation (e.g. European EMC Directive).
Adaptor terminals are one-to-one connected to the submin-d pin of same
designation: Terminal 1 is connected to pin 1, terminal 2 to pin 2 etc. !
21.1
24 V dc Input (MLT 1/4)
2
(shield)
1
3
3
2
1
Supply
from rear
Pin 1:
Pin 2:
Pin 3:
shield:
ME
+ 24 V dc
⊥)
0 V DC (⊥
housing flange
Supply from front
(see Fig. 6-1, too)
Fig. 21-1: Pin assignments 24 V dc Input (MLT 1/4)
21.2
230/120 V ac Input (MLT 3)
PE
Fig. 21-2: Pin assignments 230/120 V ac Input (MLT 3)
Emerson Process Management GmbH & Co. OHG
21 - 1
NGA 2000 MLT Hardware
Instruction Manual
PIN ASSIGNMENTS
90002929
07/2006
OPTION SIO
21.3
Option SIO (Standard I/O)
21.3.1
Analog Signal Outputs
1
13
14
25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
± 11 V DC (burden > 2 kΩ), Output 1
± 22 mA, (burden 500 Ω), Output 1
± 11 V DC (burden > 2 kΩ), Output 2
± 22 mA, (burden 500 Ω), Output 2
⊥ (V DC), Outputs 1 + 2
⊥ (mA), Outputs 1 + 2
± 11 V DC (burden > 2 kΩ), Output 3 (Option)
± 22 mA, (burden 500 Ω), Output 3 (Option)
± 11 V DC (burden > 2 kΩ), Output 4 (Option)
± 22 mA, (burden 500 Ω), Output 4 (Option)
⊥ (V DC), Outputs 3 + 4 (Option)
⊥ (mA), Outputs 3 + 4 (Option)
FE
± 11 V DC (burden > 2 kΩ), Output 5 (Option)
± 22 mA, (burden 500 Ω), Output 5 (Option)
± 11 V DC (burden > 2 kΩ), Output 6 (Option)
± 22 mA, (burden 500 Ω), Output 6 (Option)
⊥ (V DC), Outputs 5 + 6 (Option)
⊥ (mA), Outputs 5 + 6 (Option)
± 11 V DC (burden > 2 kΩ), Output 7 (Option)
± 22 mA, (burden 500 Ω), Output 7 (Option)
± 11 V DC (burden > 2 kΩ), Output 8 (Option)
± 22 mA, (burden 500 Ω), Output 8 (Option)
⊥ (V DC), Outputs 7 + 8 (Option)
⊥ (mA), Outputs 7 + 8 (Option)
Fig. 21-3: Pin assignments Socket Analog Signal Outputs (Option SIO)
21.3.2
Relay Outputs / Serial Interfaces
1
5
6
9
1
2
3
4
5
6
7
8
9
⊥ (GND)
RxD
TxD
not used
⊥ (GND)
Relay Contact 1 (max. 30 V / 1 A / 30 W)
Relay Contact 2 (max. 30 V / 1 A / 30 W)
Relay Contact 3 (max. 30 V / 1 A / 30 W)
Relay Contacts (Common)
Fig. 21-4a: Pin assignments Socket Relay Outputs / RS 232 Serial Interface (Option SIO)
1
5
6
9
1
2
3
4
5
6
7
8
9
⊥ (GND)
RxDRxD+
TxD+
TxDRelay Contact 1 (max. 30 V / 1 A / 30 W)
Relay Contact 2 (max. 30 V / 1 A / 30 W)
Relay Contact 3 (max. 30 V / 1 A / 30 W)
Relay Contacts (Common)
Fig. 21-4b: Pin assignments Socket Relay Outputs / RS 485 Serial Interface (Option SIO)
21 - 2
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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07/2006
PIN ASSIGNMENTS
OPTION DIO
21.4
Option DIO (Digitale I/O)
1
19
20
37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
(5 - max. 30 VDC / max. 500 mA) Output 1
(5 - max. 30 VDC / max. 500 mA) Output 2
(5 - max. 30 VDC / max. 500 mA) Output 3
(5 - max. 30 VDC / max. 500 mA) Output 4
(5 - max. 30 VDC / max. 500 mA) Output 5
(5 - max. 30 VDC / max. 500 mA) Output 6
(5 - max. 30 VDC / max. 500 mA) Output 7
(5 - max. 30 VDC / max. 500 mA) Output 8
(5 - max. 30 VDC / max. 500 mA) Output 9
(5 - max. 30 VDC / max. 500 mA) Output 10
(5 - max. 30 VDC / max. 500 mA) Output 11
(5 - max. 30 VDC / max. 500 mA) Output 12
(5 - max. 30 VDC / max. 500 mA) Output 13
(5 - max. 30 VDC / max. 500 mA) Output 14
(5 - max. 30 VDC / max. 500 mA) Output 15
(5 - max. 30 VDC / max. 500 mA) Output 16
(5 - max. 30 VDC / max. 500 mA) Output 17
(5 - max. 30 VDC / max. 500 mA) Output 18
(5 - max. 30 VDC / max. 500 mA) Output 19
(5 - max. 30 VDC / max. 500 mA) Output 20
(5 - max. 30 VDC / max. 500 mA) Output 21
(5 - max. 30 VDC / max. 500 mA) Output 22
(5 - max. 30 VDC / max. 500 mA) Output 23
(5 - max. 30 VDC / max. 500 mA) Output 24
(5 - max. 30 VDC / 2,2 mA) Input 1
(5 - max. 30 VDC / 2,2 mA) Input 2
(5 - max. 30 VDC / 2,2 mA) Input 3
(5 - max. 30 VDC / 2,2 mA) Input 4
(5 - max. 30 VDC / 2,2 mA) Input 5
(5 - max. 30 VDC / 2,2 mA) Input 6
(5 - max. 30 VDC / 2,2 mA) Input 7
(5 - max. 30 VDC / 2,2 mA) Input 8
⊥ (Outputs 1... 8 und Inputs)
⊥ (Outputs 9 ... 15)
⊥ (Outputs 16 ... 24)
Summary Failure: Short circuit
Failure: Timeout or Reset
Fig. 21-5: Pin assignments Socket Digital Inputs/Outputs (Option DIO)
Further informations about the options SIO/DIO you will find in the chapters ”1.8.7”, ”1.8.8”
and “Preface” of this instruction manual and in the software manual!
Emerson Process Management GmbH & Co. OHG
21 - 3
NGA 2000 MLT Hardware
Instruction Manual
PIN ASSIGNMENTS
90002929
07/2006
CAT 200
21.5
Terminal Assignment of CAT 200
1
1
24
5
1
1
24
2
4
3
5
Fig. 21-6: CAT 200, Junction box, interior view
1
2
3
Cable gland mains
Mains terminals
Upper signal terminals (24)
4
5
Lower signal terminals (24).
Signal cable glands (max. 3)
Note!
Assignment of signals to signal terminals inside junction box varies depending on selected analyzer
options. For assignments of your specific analyzer refer to the label on the inner side of the junction
box cover.
General terminal assignments (examples) for the different kinds of available signals are given on the
following pages.
21 - 4
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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90002929
07/2006
PIN ASSIGNMENTS
CAT 200
Mains Terminal
Description
1
Hot (line In)
2
Neutral
3
Ground
4
Ground
5
Ground
Table 21-1: CAT 200 Power Connections Terminal Assignments
Terminal
Description
Upper 1
± 22 mA, (burden 500 Ω), Output 1
Upper 2
± 22 mA, (burden 500 Ω), Output 2
Upper 3
⊥ (mA), Outputs 1 + 2
Upper 4
± 22 mA, (burden 500 Ω), Output 3 (option)
Upper 5
± 22 mA, (burden 500 Ω), Output 4 (option)
Upper 6
⊥ (mA), Outputs 3 + 4
Upper 7
± 22 mA, (burden 500 Ω), Output 5 (option)
Upper 8
± 22 mA, (burden 500 Ω), Output 6 (option)
Upper 9
⊥ (mA), Outputs 5 + 6
Upper 10
± 22 mA, (burden 500 Ω), Output 7 (option)
Upper 11
± 22 mA, (burden 500 Ω), Output 8 (option)
Upper 12
⊥ (mA), Outputs 7 + 8
Table 21-2: CAT 200 Analog Signal Outputs Terminal Assignments (Option SIO)
Terminal
Description
Lower 6
Relay Contact 1 (max. 30 V / 1 A / 30 W)
Lower 7
Relay Contact 2 (max. 30 V / 1 A / 30 W)
Lower 8
Relay Contact 3 (max. 30 V / 1 A / 30 W)
Lower 9
Relay Contacts Cmmon
Table 21-3: CAT 200 Relay Outputs Terminal Assignments (Option SIO)
Terminal
Description
Lower 10
Field Bus +
Lower 11
Field Bus -
Lower 12
Ground Field Bus
Table 21-4: CAT 200 Field Bus Terminal Assignments (Option)
Emerson Process Management GmbH & Co. OHG
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NGA 2000 MLT Hardware
Instruction Manual
PIN ASSIGNMENTS
90002929
07/2006
CAT 200
Terminal
RS 232
RS 485
Lower 1
Ground
Ground
Lower 2
RxD
RxD -
Lower 3
TxD
RxD +
Lower 4
Not used
TxD +
Lower 5
Ground
TxD -
Table 21-5: CAT 200 RS 232 / RS 485 Serial Interface Terminal Assignments (Option SIO)
Terminal
Description
Upper 13
(5 - max. 30 VDC / max. 500 mA) Output 1
Upper 14
(5 - max. 30 VDC / max. 500 mA) Output 2
Upper 15
(5 - max. 30 VDC / max. 500 mA) Output 3
Upper 16
(5 - max. 30 VDC / max. 500 mA) Output 4
Upper 17
(5 - max. 30 VDC / max. 500 mA) Output 5
Upper 18
(5 - max. 30 VDC / max. 500 mA) Output 6
Upper 19
(5 - max. 30 VDC / max. 500 mA) Output 7
Upper 20
(5 - max. 30 VDC / max. 500 mA) Output 8
Upper 21
(5 - max. 30 VDC / max. 500 mA) Output 9
Upper 22
(5 - max. 30 VDC / max. 500 mA) Output 10
Upper 23
(5 - max. 30 VDC / max. 500 mA) Output 11
Upper 24
(5 - max. 30 VDC / max. 500 mA) Output 12
Lower 13
(5 - max. 30 VDC / max. 500 mA) Output 13
Lower 14
(5 - max. 30 VDC / max. 500 mA) Output 14
Lower 15
(5 - max. 30 VDC / max. 500 mA) Output 15
Lower 16
(5 - max. 30 VDC / 2,2 mA) Input 1
Lower 17
(5 - max. 30 VDC / 2,2 mA) Input 2
Lower 18
(5 - max. 30 VDC / 2,2 mA) Input 3
Lower 19
(5 - max. 30 VDC / 2,2 mA) Input 4
Lower 20
(5 - max. 30 VDC / 2,2 mA) Input 5
Lower 21
(5 - max. 30 VDC / 2,2 mA) Input 6
Lower 22
⊥ (Outputs 1... 8 und Inputs)
Lower 23
⊥ (Outputs 9...15)
Table 21-6: CAT 200 Digital Inputs/Outputs Terminal Assignments (Option DIO)
21 - 6
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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07/2006
21.6
NGA 2000 MLT Hardware
PIN ASSIGNMENTS
CAT 200 Increased Safety Box - Label Schematic
Emerson Process Management GmbH & Co. OHG
21 - 7
NGA 2000 MLT Hardware
Instruction Manual
PIN ASSIGNMENTS
90002929
07/2006
Table 21-7: CAT 200 Terminal Assignments - Bottom (Lower) Contacts
Table 21-8: CAT 200 Terminal Assignments - Top (Upper) Contacts
21 - 8
Emerson Process Management GmbH & Co. OHG
Instruction Manual
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07/2006
22.
NGA 2000 MLT Hardware
WATER CONTENT CALCULATION FROM DEW-POINT TO VOL.-% OR g/Nm³
Calculation of Water Content from Dew-point to Vol. -% or g/Nm³
Table 22-1
Dew-point
°C
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Emerson Process Management GmbH & Co. OHG
°F
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
32,0
33,8
36,8
37,4
39,2
41,0
42,8
44,6
46,4
48,2
50,0
51,8
53,6
55,4
57,2
59,0
60,8
62,6
64,4
66,2
68,0
69,8
71,6
73,4
75,2
77,0
78,8
80,6
82,4
84,2
86,0
87,6
89,6
91,4
93,2
95,0
96,8
98,6
100,4
102,2
104,0
Water Content
Vol. -%
0,60
0,65
0,68
0,75
0,80
0,86
0,92
0,99
1,06
1,13
1,21
1,29
1,38
1,48
1,58
1,68
1,79
1,90
2,04
2,16
2,30
2,45
2,61
2,77
2,95
3,12
3,32
3,52
3,73
3,96
4,18
4,43
4,69
4,97
5,25
5,55
5,86
6,20
6,55
6,90
7,18
Water Concentration
g/Nm³
4,88
5,24
5,64
6,06
6,50
6,98
7,49
8,03
8,60
9,21
9,86
10,55
11,29
12,07
12,88
14,53
14,69
16,08
16,72
17,72
19,01
20,25
21,55
22,95
24,41
25,97
27,62
29,37
32,28
33,15
35,20
37,37
39,67
42,09
44,64
47,35
50,22
53,23
56,87
59,76
62,67
22 - 1
NGA 2000 MLT Hardware
Instruction Manual
WATER CONTENT CALCULATION FROM DEW-POINT TO VOL.-% OR g/Nm³
Dew-point
°C
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Remark:
22 - 2
42
44
45
46
48
50
52
54
55
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
°F
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
107,6
111,2
113,0
114,8
118,4
122,0
125,6
129,2
131,0
132,8
136,4
140,0
143,6
147,2
150,8
154,4
158,0
161,6
165,2
168,8
172,4
176,0
179,6
183,2
186,8
190,4
194,0
Water Content
Vol. -%
8,10
8,99
9,45
9,96
11,07
12,04
13,43
14,80
15,55
16,29
17,91
19,65
21,55
23,59
25,80
28,18
30,75
33,50
36,47
39,66
43,06
46,72
50,65
54,84
59,33
64,09
69,18
90002929
07/2006
Water Concentration
g/Nm³
70,95
79,50
84,02
89,20
99,80
110,81
124,61
139,55
147,97
156,26
175,15
196,45
220,60
247,90
279,20
315,10
356,70
404,50
461,05
527,60
607,50
704,20
824,00
975,40
1171,50
1433,30
1805,00
Norm conditions are related to 273 K (0 °C) and 1013 hPa (mbar).
The water concentration is calculated under dry norm conditions which means after
(fictive) subtraction of moisture content on water vapor.
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
Emerson Process Management GmbH & Co. OHG
NGA 2000 MLT Hardware
Instruction Manual
NGA 2000 MLT Hardware
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© Emerson Process Management GmbH & Co. OHG 2007
90002929
01/2007