[MI IDP25-T/IDP50-T] Installation, Operation, Calibration

[MI IDP25-T/IDP50-T] Installation, Operation, Calibration
Instruction
MI IDP25-T/IDP50-T
August 2016
I/A Series® Intelligent Pressure Transmitters
IDP25 and IDP50 Differential Pressure
with HART Communication
Installation, Operation, Calibration, Configuration, and Maintenance
Contents
Figures ........................................................................................................................................... 5
Tables ............................................................................................................................................ 7
1. Introduction .............................................................................................................................. 9
General Description ....................................................................................................................9
Reference Documents .................................................................................................................9
Transmitter Identification..........................................................................................................10
Standard Specifications..............................................................................................................12
Product Safety Specifications .....................................................................................................17
ATEX and IECEx Warnings .................................................................................................19
ATEX Compliance Documents ............................................................................................19
IECEx Compliance Documents ...........................................................................................19
2. Installation .............................................................................................................................. 21
Transmitter Mounting...............................................................................................................21
Process Mounting.................................................................................................................21
Manifold Mounted Transmitter ............................................................................................22
Transmitter Mounted on a Coplanar Manifold.....................................................................23
Pipe or Surface Mounting.....................................................................................................23
Standard Mounting Bracket.............................................................................................23
Universal Mounting Bracket ............................................................................................24
Venting and Draining................................................................................................................28
Traditional Structure ............................................................................................................28
LP1 Low Profile Structure ....................................................................................................28
LP2 Low Profile Structure ....................................................................................................29
Installation of Flow Measurement Piping ..................................................................................29
Filling System with Seal Liquid .................................................................................................31
Positioning the Housing............................................................................................................32
Positioning the Display .............................................................................................................32
Setting the Write Protect Jumper...............................................................................................33
Cover Locks ..............................................................................................................................33
Wiring ......................................................................................................................................33
Accessing Transmitter Field Terminals ..................................................................................34
Wiring the Transmitter to a Control Loop............................................................................34
Multidrop Communication..................................................................................................37
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MI IDP25-T/IDP50-T – August 2016
Contents
Connecting the Transmitter to an I/A Series System .............................................................38
Putting a Differential Pressure Transmitter Into Operation........................................................39
Taking a Differential Pressure Transmitter Out of Operation.....................................................39
3. Operation Via Local Display ................................................................................................... 41
Entering Numerical Values........................................................................................................42
Viewing the Database................................................................................................................43
Viewing the Pressure Range.......................................................................................................43
Testing the Display....................................................................................................................43
Error Messages ..........................................................................................................................44
4. Calibration .............................................................................................................................. 45
General Calibration Notes.........................................................................................................45
Calibration Setup ......................................................................................................................48
Setup of Electronic Equipment.............................................................................................48
Field Calibration Setup.........................................................................................................48
Bench Calibration Setup ......................................................................................................49
Calibration Using a PC50 .........................................................................................................50
Calibration Using a HART Communicator ..............................................................................50
Calibration Using the Optional Local Display...........................................................................50
Zero Adjustment Using External Zero Button ......................................................................54
Error Messages ..........................................................................................................................55
5. Configuration.......................................................................................................................... 57
Configurable Parameters ...........................................................................................................57
Configuration Using a PC50.....................................................................................................58
Configuration Using a HART Communicator ..........................................................................58
Configuration Using the Optional Local Display ......................................................................58
Character Lists ..........................................................................................................................67
Error Messages ..........................................................................................................................68
6. 2001Maintenance.................................................................................................................... 71
Error Messages ..........................................................................................................................71
Parts Replacement .....................................................................................................................71
Replacing the Terminal Block Assembly ...............................................................................71
Replacing the Electronics Module Assembly.........................................................................72
Removing and Reinstalling a Housing Assembly ..................................................................73
Adding the Optional Display................................................................................................74
Replacing the Sensor Assembly.............................................................................................74
Rotating Process Covers for Venting..........................................................................................76
4
Figures
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
41
42
Transmitter Identification ...................................................................................................10
Top Level Structure Diagram ..............................................................................................11
Minimum Allowable Absolute Pressure vs. Process Temperature
with Fluorinert Fill Fluid...............................................................................................14
Typical Mounting of an IDP Transmitter Supported by Process Piping ...............................22
Typical Mounting of an IDP Transmitter Supported by a Bypass Manifold .........................22
Typical Mounting of IDP Transmitter on Coplanar Manifold..........................................23
Pipe or Surface Mounted Transmitter Using a Standard Bracket..........................................24
Examples of Mounting with a Standard Bracket ..................................................................24
Details of a Universal Bracket..............................................................................................25
Mounting a Transmitter with Traditional Structure Using a Universal Bracket ....................25
Vertical Pipe Mounting a Transmitter with LP2 Structure Using a Universal Bracket ..........26
Horizontal Mounting a Transmitter with LP2 Structure Using a Universal Bracket .............27
Vertical Mounting - Cavity Draining...................................................................................28
Vertical Mounting - Cavity Venting.....................................................................................28
Horizontal Mounting - Cavity Venting ...............................................................................28
Vertical Mounting - Cavity Venting.....................................................................................29
Horizontal Mounting - Cavity Venting and Draining..........................................................29
Cavity Venting and Draining ..............................................................................................29
Example of Horizontal Process Line Installation..................................................................30
Example of Vertical Process Line Installation.......................................................................31
Housing Screw or Clip Location .........................................................................................32
Cover Lock Location ..........................................................................................................33
Accessing Field Terminals ....................................................................................................34
Identification of Field Terminals.........................................................................................34
Supply Voltage and Loop Load............................................................................................35
Loop Wiring Transmitters ...................................................................................................37
Wiring Several Transmitters to a Common Power Supply....................................................37
Typical Multidrop Network.................................................................................................38
Local Display Module .........................................................................................................41
Top Level Structure Diagram ..............................................................................................42
Display Test Segment Patterns.............................................................................................44
4 to 20 mA Output Calibration Setup of Electronic Equipment .........................................48
Field Calibration Setup .......................................................................................................49
Bench Calibration Setup .....................................................................................................50
Calibration Structure Diagram (1 of 2) ...............................................................................52
Calibration Structure Diagram (2 of 2) ...............................................................................53
Configuration Structure Diagram (1 of 3)...........................................................................60
Configuration Structure Diagram (2 of 3)...........................................................................61
Configuration Structure Diagram (3 of 3) ..........................................................................62
Replacing the Electronics Module Assembly and Display ....................................................73
Replacing the Sensor Assembly............................................................................................75
Replacing the Sensor Assembly (pvdf Inserts) ......................................................................76
5
MI IDP25-T/IDP50-T – August 2016
43
6
Figures
Sensor Cavity Venting and Draining ...................................................................................76
Tables
1
2
3
4
5
6
7
8
9
10
11
Reference Documents ...........................................................................................................9
Minimum Loop Load and Supply Voltage Requirements ....................................................16
Electrical Safety Specifications.............................................................................................18
Operation Error Messages ...................................................................................................44
Calibration Menu................................................................................................................51
Calibration Error Messages..................................................................................................55
Configurable Parameters ....................................................................................................57
Configuration Menu ...........................................................................................................59
Alphanumeric Character List...............................................................................................67
Numeric Character List.......................................................................................................67
Configuration Error Messages .............................................................................................68
7
MI IDP25-T/IDP50-T – August 2016
8
Tables
1. Introduction
General Description
The IDP25-T and IDP50-T intelligent differential pressure transmitters measure the difference
between two pressures applied to opposite sides of a silicon strain gauge microsensor within the
sensor assembly. This microsensor converts differential pressure to a change in resistance. The
resistance change is then converted to a 4 to 20 mA or digital signal proportional to differential
pressure or to the square root of differential pressure. This measurement signal is transmitted to
remote receivers over the same two wires that supply power to the transmitter electronics. These
wires also carry two-way data signals between the transmitter and remote communication devices.
The transmitter allows direct analog connection to common receivers while still providing full
Intelligent Transmitter Digital Communications using a HART Communicator.
The transmitter is often used for measuring fluid flow rates across a primary device such as an
orifice plate, but can also be used for other types of differential pressure measurements such as
liquid level, interface level, or density measurements. The IDP25-T can also be supplied with
direct connected or remote pressure seals to isolate the measuring element from corrosive or
viscous fluids.
For more detailed information on the principle of operation of the transmitter, refer to document
TI 037-096.
Reference Documents
Table 1. Reference Documents
Document
Description
Dimensional Prints
DP 020-342
Dimensional Print – PSFLT Pressure Seals
DP 020-343
Dimensional Print – PSFPS and PSFES Pressure Seals
DP 020-345
Dimensional Print – PSFAR Pressure Seals
DP 020-347
Dimensional Print – PSTAR Pressure Seals
DP 020-349
Dimensional Print – PSISR Pressure Seals
DP 020-351
Dimensional Print – PSSCR Pressure Seals
DP 020-353
Dimensional Print – PSSSR Pressure Seals
DP 020-354
Dimensional Print – PSSST Pressure Seals
DP 020-355
Dimensional Print – PSSCT Pressure Seals
DP 020-446
Dimensional Print – IDP10, IDP25, and IDP50 Differential Pressure Transmitters
Parts Lists
PL 009-013
Parts List – IDP25 Differential Pressure Transmitter
PL 009-014
Parts List – IDP50 Differential Pressure Transmitter
9
MI IDP25-T/IDP50-T – August 2016
1. Introduction
Table 1. Reference Documents (Continued)
Document
Description
Instructions
MI 020-328
Instruction – Bubble Type Installation for Liquid Level
MI 020-329
Instruction – High Accuracy Flow Measurement
MI 020-366
Instruction – I/A Series Intelligent Pressure Transmitters Operation, Configuration, and Calibration
Using a HART Communicator
MI 020-369
Instruction – Pressure Seals
MI 020-427
Instruction – Intrinsic Safety Connection Diagrams and Nonincendive Circuits
MI 020-501
Instruction – PC50 Intelligent Field Device Tool (Installation and Parts List)
MI 020-520
Instruction – PC50 Intelligent Field Device Tool with Advanced DTM Library (Operation Using
HART Protocol)
MI 022-138
Instruction – Bypass Manifolds - Installation and Maintenance
Technical Information
TI 1-50a
Technical Information – Liquid Density Measurement
TI 001-051
Technical Information – Liquid Interface Measurement
TI 001-052
Technical Information – Liquid Level Measurement
TI 37-75b
Technical Information – Transmitter Material Selection Guide
TI 037-097
Technical Information – Process Sealing of I/A Series Pressure Transmitters for use in Class 1,
Zone 0, 1, and 2 Hazardous Locations
Transmitter Identification
See Figure 1 for transmitter data plate contents. For a complete explanation of the Model
Number code, see the parts list. The firmware version is identified on the top line of the display
when VIEW DB (View Database) is selected in the top level structure. See Figure 2.
Figure 1. Transmitter Identification
STYLE
MODEL CODE
SERIAL NUMBER
CALIBRATED RANGE
AUXILIARY SPECIFICATION CODE
PLANT AND DATE OF MANUFACTURE
SUPPLY VOLTAGE
MAXIMUM WORKING PRESSURE
CUSTOMER TAG
MODEL
REFERENCE
AUX. SPEC.
SUPPLY
CUST. TAG
10
CAL. RANGE
ORIGIN
MWP
ST
1. Introduction
MI IDP25-T/IDP50-T – August 2016
Figure 2. Top Level Structure Diagram
E
DISPLAY M1 AND M1 EGU
DISPLAY M2 AND M2 EGU
N or E
N
E
CALIB
N
CONFIG
E
LOCAL MODE, GO TO CALIBRATION MENU
OFF-LINE, GO TO CONFIGURATION MENU
N
VIEW DB
E
ON-LINE MODE
N
N
E
TST DSP
E
CANCEL
N
ON-LINE MODE
N
N
E
E
STEP THROUGH DATABASE DISPLAY
STEP THROUGH DISPLAY TEST PATTERN
EXIT MODE SELECT MENU, RETURN TO ON-LINE MODE
N = NEXT BUTTON
E = ENTER BUTTON
11
MI IDP25-T/IDP50-T – August 2016
1. Introduction
Standard Specifications
Operative Limits
Influence
Operative Limits
Sensor Body Temperature (a)
Silicone Fill Fluid
Fluorinert Fill Fluid
pvdf Inserts
-46 and +121°C (-50 and +250°F)
-29 and +121°C (-20 and +250°F)
-7 and +82°C (20 and 180°F)
Electronics Temperature
With LCD Display
-40 and +85°C (-40 and +185°F)
-40 and +85°C (-40 and +185°F) (b)
Relative Humidity
0 and 100%
Supply Voltage
11.5 and 42 V dc
Output Load (c)
0 and 1450 ohms
Mounting Position
No Limit
Vibration
6.3 mm (0.25 in) double amplitude from 5 to 15 Hz with aluminum housing and
from 5 to 9 Hz with 316 ss housing.
0 to 30 m/s (0 to 3 “g”) from 15 to 500 Hz with aluminum housing and
0 to 10 m/s (0 to 1 “g”) from 9 to 500 Hz with 316 ss housing.
a. Refer to MI 020-369 for temperature limits with pressure seals.
b. Display updates are slowed and readability decreased at temperatures below -20°C (-4°F).
c. 250 Ω minimum load is required for communication with a HART Communicator.
Span and Range Limits
Span Limit
Code
Model
IDP25
IDP50
a.
b.
c.
d.
12
Span Limits
ΔP
Range Limits (a) (b)
ΔP
B
0.12 and 50 kPa
(0.5 and 200 inH20)
-50 and +50 kPa
(-200 and +200 inH20)
C
0.625 and 250 kPa
(2.5 and 1000 inH20)
-250 and +250 kPa
(-1000 and +1000 inH20)
B
0.63 and 50 kPa
(2.5 and 200 inH20)
-50 and +50 kPa
(-200 and +200 inH20)
C
3.1 and 250 kPa
(12.5 and 1000 inH20)
-250 and +250 kPa
(-1000 and +1000 inH20)
D (c)
0.17 and 14 MPa
(25 and 2000 psi)
-0.21 and +14 MPa
(-30 and +2000 psi)
M (d)
0.017 and 1.4 MPa
(25 and 2000 psi)
-0.21 and +1.4 MPa
(-30 and +200 psi)
Negative values indicate a higher pressure on the low side of the sensor.
Positive values indicate a higher pressure on the high side of the sensor.
Also applies to Option G2.
Only applies to Option G2.
1. Introduction
MI IDP25-T/IDP50-T – August 2016
Maximum Static, Overrange, and Proof Pressure
Maximum Static and Overrange
Pressure Rating (b) (c) (d)
Transmitter Configuration
(Bolting Material) (a)
MPa
Proof Pressure Rating (e)
Psi
MPa
Psi
Standard (B7 steel),
Option “-B2” (17-4 PH ss),
Option “-D3” or “-D7”
25
3625
100
14500
Option “B1” (316 ss) or
Option “-D5”
15
2175
60
8700
Option “B3” (B7M)
20
2900
70
11150
Option “-D1”
16
2320
64
9280
Option “-D2”, “-D4”,
“-D6”, or “-D8” (f)
10
1500
40
6000
Option “-D9” (17-4 PH ss)
40
5800
100
14500
a. -D1 = DIN Single ended process cover with M10 bolting.
-D2 = DIN Double ended process cover with M10 bolting
-D3 = DIN Single ended process cover with 7/16 in bolting.
-D4 = DIN Double ended process cover with 7/16 in bolting.
-D5 = DIN Single ended process cover with 7/16 in 316 ss bolting.
-D6 = DIN Double ended process cover with 7/16 in 316 ss bolting.
-D7 = DIN Single ended process cover with 7/16 in 17-4 ss bolting.
-D8 = DIN Double ended process cover with 7/16 in 17-4 ss bolting
-D9 = DIN Single ended process cover with 7/16 in 17-4 ss bolting.
b. Either side can be at higher pressure during overrange.
c. When Structure Codes 78/79 are used (pvdf inserts in the Hi and Lo side process covers), the maximum overrange
is 2.1 MPa (300 psi) and temperature limits are -7 and +82°C (20 and 180°F).
d. Static pressure rating of 40 MPa (5800 psi) with Option Code -Y.
e. Meets ANSI/ISA Standard S82.03-1988.
f. Limited to operating temperatures ranging from 0 to 60°C (32 to 140°F).
NOTE
Static pressure zero shift for all calibrated spans can be eliminated by readjusting the
zero output at nominal operating static pressure.
!
CAUTION
1. Exceeding the maximum overrange pressure can cause damage to the transmitter
degrading its performance.
2. The transmitter could be nonfunctional after application of the proof pressure.
Elevated Zero and Suppressed Zero
For applications requiring an elevated or suppressed zero, the maximum span and the upper
and lower range limits of the transmitter can not be exceeded.
Sensor Fill Fluid
IDP25:
Silicone Oil (DC 200) or Fluorinert (FC-43)
IDP50:
Silicone Oil (DC 200)
13
MI IDP25-T/IDP50-T – August 2016
1. Introduction
Minimum Allowable Absolute Pressure vs. Process Temperature
With Silicone Fill Fluid:
With Fluorinert Fill Fluid:
At full vacuum: Up to 121°C (250°F)
Refer to Figure 3.
Figure 3. Minimum Allowable Absolute Pressure vs. Process Temperature
with Fluorinert Fill Fluid
-80
0
30
Temperature °C
60
90
120
140
Absolute Pressure, mmHg
120
Fluorinert FC-43 Fluid
(operating area above curve)
100
80
60
40
20
-25
0
50
100
150
200
250
Temperature °F
Mounting Position
The transmitter can be mounted in any orientation. It can be supported by the process
piping. It can also be mounted directly to a vertical or horizontal pipe or surface mounted
using an optional mounting bracket. The housing can be rotated up to one full turn to any
desired position for access to adjustments, display, or conduit connections. See “Positioning
the Housing” on page 32. The display (if present) can also be rotated in the housing to any of
four different positions at 90° increments. See “Positioning the Display” on page 32.
NOTE
Position effect zero shift for all calibrated spans can be eliminated by readjusting zero
output after installation.
Approximate Mass
Without Process Connectors
With Process Connectors
With Optional 316 ss Housing
3.5 kg (7.8 lb)
4.2 kg (9.2 lb)
Add 1.1 kg (2.4 lb)
Process Connections
IDP25 and IDP50 transmitters are connected to the process via a 1/4 NPT thread or
any one of a number of optional process connectors.
14
1. Introduction
MI IDP25-T/IDP50-T – August 2016
Process Wetted Materials
Diaphragm: 316L ss and Nickel alloy(1)
Covers and Process Connections: 316 ss and Nickel alloy(1)
Electrical Connections
Field wires enter through 1/2 NPT, PG 13.5, or M20 threaded entrances on either side of the
electronics housing. Leads terminate under screw terminals and washers on the terminal block
in the field terminal compartment. To maintain RFI/EMI, environmental, and
explosionproof ratings, unused conduit connection must be plugged with metal plug
(provided), inserted to five full turns.
Field Wiring Reversal
Accidental reversal of field wiring will not damage the transmitter, provided the current is
limited to 1 A or less by active current limiting or loop resistance. Sustained currents of 1 A
will not damage the electronics module or sensor but could damage the terminal block
assembly and external instruments in the loop.
Adjustable Damping
The transmitter response time is normally 1.0 second or the electronically adjustable setting
of 0.00 (none), 0.25, 0.50, 1, 2, 4, 8, 16, or 32 seconds, whichever is greater, for a 90%
recovery from an 80% input step as defined in ANSI/ISA S51.1.
Output Signal
4 to 20 mA dc linear or 4 to 20 mA dc square root; software selectable. The output is remotely
configurable from the HART Communicator and locally configurable with the pushbuttons
on the display.
NOTE
Only 4 to 20 mA linear output on absolute pressure, gauge pressure, and flange level
transmitters.
Zero and Span Adjustments
Zero and span are adjustable from the HART Communicator. They are also adjustable at the
transmitter using the display. An optional external self-contained moisture sealed pushbutton
assembly allows local resetting of zero without removing the housing cover.
Power-up Time
Less than 2.0 seconds for output to reach the first valid measurement, then at the electronic
damping rate to reach the final measured variable value.
1. Equivalent to Hastelloy® C. Hastelloy is a registered trademark of Haynes International, Inc.
15
MI IDP25-T/IDP50-T – August 2016
1. Introduction
Supply Voltage
Power supply must be capable of providing 22 mA when the transmitter is configured for 4 to
20 mA output. Ripple of up to 2 V pp (50/60/100/120 Hz) is tolerable, but instantaneous
voltage must remain within specified range.
The supply voltage and loop load must be within specified limits. This is explained in detail
in “Wiring” on page 33. A summary of the minimum requirements is listed in Table 2.
Table 2. Minimum Loop Load and Supply Voltage Requirements
HART
Communication
No HART
Communication
250 Ω
0
17 V
11.5 V
Minimum Resistance
Minimum Supply Voltage
Electrical Ground Connections
The transmitter is equipped with an internal ground connection within the field wiring
compartment and an external ground connection at the base of the electronics housing. To
minimize galvanic corrosion, place the wire lead or contact between the captive washer and
loose washer on the external ground screw. If shielded cable is used, earth (ground) the shield
at the field enclosure only. Do not ground the shield at the transmitter.
HART Communicator Connection Points
The HART Communicator can be connected in the loop as shown in “Wiring” on page 33. It
can also be connected directly to the transmitter at the two upper banana plug receptacles.
Test Points
The two lower banana plug receptacles (designated CAL) can be used to check transmitter
output when configured for 4 to 20 mA. Measurements should be 100-500 mV dc for
0-100% transmitter output.
Remote Communications
The transmitter communicates bidirectionally over the 2-wire field wiring to a HART
Communicator. The information that can be continuously displayed is:
♦ Process Measurement (expressed in one or two types of units)
♦ Transmitter Temperature (sensor and electronics)
♦ mA Output (equivalent)
The information that can be remotely displayed and reconfigured includes:
♦ Output in Percent Flow (square root) or Pressure Units (linear). Percent Display
in Linear mode on local display is also supported.
♦ Zero and Span, including reranging
♦ Zero Elevation or Suppression
♦ Linear Output or Square Root Output (in some models)
♦ Pressure or Flow Units (from list provided)
16
1. Introduction
MI IDP25-T/IDP50-T – August 2016
♦ Temperature Sensor Failure Strategy
♦ Electronic Damping
♦ Poll Address (Multidrop mode)
♦ External Zero (Enable or Disable)
♦ Failsafe Direction
♦ Tag, Description, and Message
♦ Date of Last Calibration
Communications Format
Communication is based upon the FSK (Frequency Shift Keying) technique. The frequencies
are superimposed on the transmitter power/signal leads.
4 to 20 mA Output
The transmitter sends its differential pressure measurement to the loop as a continuous 4 to
20 mA dc signal. It also communicates digitally with the HART Communicator at distances
up to 3000 m (10 000 ft). Communication between the remote configurator and the
transmitter does not disturb the 4 to 20 mA output signal. Other specifications are:
Data Transmission Rate:
1200 Baud
4 - 20 mA Update Rate:
30 times/second
Output when Fail Low:
3.60 mA
Output when Fail High:
21.00 mA
Output when Underrange:
3.80 mA
Output when Overrange:
20.50 mA
Output when Offline:
User configurable between 4
and 20 mA
Product Safety Specifications
!
DANGER
To prevent possible explosions and to maintain flameproof, explosionproof, and dustignitionproof protection, observe applicable wiring practices. Plug unused conduit
opening with the provided metal pipe plug. Both plug and conduit must engage a
minimum of five full threads for 1/2 NPT connections; seven full threads for M20
and PG 13.5 connections.
!
WARNING
To maintain IEC IP66 and NEMA Type 4X protection, the unused conduit opening
must be plugged with the metal plug provided. Use a suitable thread sealant on both
conduit connections. In addition, the threaded housing covers must be installed. Turn
covers to seat the O-ring into the housing and then continue to hand tighten until the
cover contacts the housing metal-to-metal.
17
MI IDP25-T/IDP50-T – August 2016
1. Introduction
NOTE
1. These transmitters have been designed to meet the electrical safety description
listed in Table 3. For detailed information or status of testing laboratory
approvals/certifications, contact Global Customer Support.
2. Wiring restrictions required to maintain electrical certification of the transmitter
are provided in “Wiring” on page 33.
Table 3. Electrical Safety Specifications
Agency Certification,
Types of Protection,
and Area Classification
ATEX flameproof: II 2 GD EEx d IIC, Zone 1.
Application Conditions
KEMA 00ATEX2019X
Temperature Class T6 T85°C
Ta = -40 to +80°C
Electrical Safety
Design Code
D
ATEX intrinsically safe: II 1 GD EEx ia IIC, Zone 0 KEMA 00ATEX1009X
or II 1/2 GD EEx ib IIC, Zone 0 and 1.
Temperature Class T4 at 80°C, T5 at 40°C, and
T6 at 40°C maximum ambient.
E
ATEX protection n: II 3 GD EEx nL IIC,
Zone 2.
N
KEMA 00ATEX1060X
Temperature Class T4 at 80°C, T5 at 70°C, and
T6 at 40°C maximum ambient.
ATEX multiple certifications, ia & ib and n. Refer to Applies to Codes D, E, and N. (a)
Codes E and N for details.
CSA intrinsically safe for Class I, Division 1,
Groups A, B, C, and D; Class II, Division 1,
Groups E, F, and G; Class III, Division 1.
Connect per MI 020-427. Temperature Class
T4A at 40°C and T3C at 85°C maximum
ambient.
M
C
Also, Zone certified intrinsically safe Ex ia IIC and Temperature Class T4 at 40°C and T3 at 85°C
maximum ambient.
energy limited Ex nA II.
CSA explosionproof for Class I, Division 1, Groups Maximum Ambient Temperature 85°C.
B, C, and D; dust-ignitionproof for Class II, Division
1, Groups E, F, and G; Class III, Division 1.
CSA for Class I, Division 2, Groups A, B, C, and D; Temperature Class T4A at 40°C and T3C at
Class II, Division 2, Groups F and G; Class III,
85°C maximum ambient.
Division 2.
CSA field device zone certified flameproof Ex d
IIC. Also, all certifications of Code C above.
Maximum Ambient Temperature 85°C.
B
EAC flameproof 1Ex d IIC Gb
T6 (-40/50°C ≤ Ta ≤ +75°C)
6
EAC flameproof Ex tb IIIC Db
T85°C -40/-50°C ≤ Ta ≤ +80°C
6
EAC flameproof Ex tc IIIC Dc
T85°C -40°C ≤ Ta ≤ +80°C
6
EAC intrinsically safe, Zone 0 Ex ia IIC Ga
T4 (-40°C ≤ Ta ≤ +80°C)
4
EAC intrinsically safe, Zone 2 Ex ic IIC Gc
T4 (-40°C ≤ Ta ≤ +80°C)
5
EAC non sparking, Zone 2 Ex nA IIC Gc
T4 (-40°C ≤ Ta ≤ +80°C)
FM intrinsically safe for Class I, Division 1, Groups Connect per MI 020-427. Temperature Class
A, B, C, and D; Class II, Division 1, Groups E, F, T4A at 40°C and T4 at 85°C maximum ambient.
and G; Class III, Division 1.
Temperature Class T4 at 85°C maximum
Also, Zone certified intrinsically safe AEx ia IIC.
ambient.
FM explosionproof for Class I, Division 1, Groups Temperature Class T6 at 80°C and T5 at 85°C
B, C, and D; dust-ignitionproof for Class II, Division maximum ambient.
1, Groups E, F, and G; Class III, Division 1.
FM nonincendive for Class I, Division 2, Groups A, Temperature Class T4A at 40°C and T4 at 85°C
B, C, and D; Class II, Division 2, Groups F and G; maximum ambient.
Class III, Division 2.
18
5
F
1. Introduction
MI IDP25-T/IDP50-T – August 2016
Table 3. Electrical Safety Specifications (Continued)
Agency Certification,
Types of Protection,
and Area Classification
Application Conditions
Electrical Safety
Design Code
FM field device zone certified flameproof AEx d
IIC. Also, all certifications of Code F above.
Temperature Class T6 at 75°C maximum
ambient.
G
IECEx flameproof: Ex d IIC
IECEx FMG 06.0007X, Ex d IIC
T6 Ta=80°C, T5 Ta=85°C
Ambient Temperature -20 to +85°C
V
INMETRO flameproof, Ex d IIC Gb
T6 (-40°C ≤ Ta ≤ +75°C)
2
INMETRO intrinsically safe, Ex ia IIC Ga
T4 (-40°C ≤ Ta ≤ +80°C)
1
a. User must permanently mark (check off in rectangular block on data plate) one type of protection only (ia and ib, d, or n). This
mark cannot be changed once it is applied.
ATEX and IECEx Warnings
Do not open while circuits are alive.
ATEX Compliance Documents
EN 50014: 1997
EN 50018: 1994
EN 50020: 1994
EN 50284: 1999
EN 50021: 1999
IECEx Compliance Documents
IEC 60079-0 (Edition 4.0): 2004
IEC 60079-1 (Edition 5): 2003
19
MI IDP25-T/IDP50-T – August 2016
20
1. Introduction
2. Installation
!
CAUTION
To avoid damage to the transmitter sensor, do not use any impact devices, such as an
impact wrench or stamping device, on the transmitter.
NOTE
1. The transmitter should be mounted so that any moisture condensing or draining
into the field wiring compartment can exit through one of the two threaded
conduit connections.
2. Use a suitable thread sealant on all connections.
Transmitter Mounting
The IDP Series differential pressure transmitter can be supported by the process piping or
mounted to a vertical or horizontal pipe or surface using the optional mounting bracket. See
figures below. For dimensional information, refer to DP 020-446.
NOTE
1. If the transmitter is not installed in the vertical position, readjust the zero output to
eliminate the position zero effect.
2. When structure codes 78/79 are used (pvdf inserts) with the IDP10 transmitters,
the process connection must be made directly to the pvdf inserts in the high and
low side process covers.
Process Mounting
With process mounting, the transmitter mounted to and supported by the process piping.
21
MI IDP25-T/IDP50-T – August 2016
2. Installation
Figure 4. Typical Mounting of an IDP Transmitter Supported by Process Piping
TRADITIONAL STRUCTURE
LP1 STRUCTURE
SEE
NOTE
LP2 STRUCTURE
SEE
NOTE
SEE
NOTE
NOTE: MARK INDICATING LOW AND HIGH PRESSURE SIDE OF TRANSMITTER
Manifold Mounted Transmitter
With manifold mounting, the transmitter is mounted to and supported by a bypass manifold.
The bypass manifold can be mounted to a DN50 or 2 inch pipe with an optional mounting
bracket.
Figure 5. Typical Mounting of an IDP Transmitter Supported by a Bypass Manifold
M4A MANIFOLD
22
MB3 MANIFOLD
2. Installation
MI IDP25-T/IDP50-T – August 2016
Transmitter Mounted on a Coplanar Manifold
Figure 6. Typical Mounting of IDP Transmitter on Coplanar Manifold
ADAPTER PLATE
AND GASKETS
MT3 MANIFOLD
MC3 MANIFOLD
Pipe or Surface Mounting
To mount the transmitter to a pipe or surface, use the Standard Mounting Bracket Set (Model
Code Option -M1 or -M2) or Universal Bracket Mounting Set (Model Code Option -M3).
Standard Mounting Bracket
The transmitter (with either traditional or LP2 low-profile structures) can be mounted to a
vertical or horizontal, DN 50 or 2-in pipe using a standard bracket. See Figures 7 and 8 for details
of a standard bracket and examples of different mounting situations. Secure the mounting bracket
to the transmitter using the four screws provided. Mount the bracket to the pipe. To mount to a
horizontal pipe, turn the U-bolt 90° from the position shown. The mounting bracket can also be
used for wall mounting by securing the bracket to a wall using the U-bolt mounting holes.
23
MI IDP25-T/IDP50-T – August 2016
2. Installation
Figure 7. Pipe or Surface Mounted Transmitter Using a Standard Bracket
APPROXIMATELY 3 IN
CLEARANCE REQUIRED
FOR ACCESS TO MOUNTING
BOLTS AND VENT SCREW.
FOR SURFACE MOUNTING,
REPLACE U-BOLT WITH TWO
0.375 IN DIAMETER BOLTS
OF SUFFICIENT LENGTH TO
PASS THROUGH BRACKET
AND SURFACE
OPTIONAL SIDE VENT
BRACKET
VERTICAL DN 50 OR 2 IN PIPE
SHOWN. ROTATE U-BOLT 90 °
FOR MOUNTING TO HORIZONTAL
PIPE
Figure 8. Examples of Mounting with a Standard Bracket
VERTICAL PIPE
LP2 STRUCTURE
TRADITIONAL STRUCTURE
HORIZONTAL PIPE
LP2 STRUCTURE
TRADITIONAL STRUCTURE
Universal Mounting Bracket
The transmitter (with either traditional or LP2 low-profile structure) can be mounted in a myriad
of positions to a vertical or horizontal, DN 50 or 2-in pipe using a universal bracket. See the
following figures for details of a universal bracket and examples of different mounting situations.
Secure the mounting bracket to the transmitter using the two long or four short screws provided.
Mount the bracket to the pipe. The mounting bracket can also be used for wall mounting by
securing the bracket to a wall using the U-bolt mounting holes.
24
2. Installation
MI IDP25-T/IDP50-T – August 2016
Figure 9. Details of a Universal Bracket
U-BOLT ASSEMBLY
FOR DN 50 OR 2 in PIPE
HOLES FOR
U-BOLT AND
SURFACE
MOUNTING
ON FOUR
SIDES OF THIS
BRACKET LEG,
BOLTS TO MOUNT
TRANSMITTER
TO BRACKET
BOLTS TO MOUNT
TRANSMITTER TO
BRACKET
HOLES TO MOUNT TRANSMITTER
TO BRACKET OR FOR SURFACE
MOUNTING ON FOUR SIDES OF
THIS BRACKET LEG
Figure 10. Mounting a Transmitter with Traditional Structure Using a Universal Bracket
VERTICAL PIPE
HORIZONTAL PIPE
25
MI IDP25-T/IDP50-T – August 2016
2. Installation
Figure 11. Vertical Pipe Mounting a Transmitter with LP2 Structure Using a Universal Bracket
26
2. Installation
MI IDP25-T/IDP50-T – August 2016
Figure 12. Horizontal Mounting a Transmitter with LP2 Structure Using a Universal Bracket
27
MI IDP25-T/IDP50-T – August 2016
2. Installation
Venting and Draining
Traditional Structure
Sensor cavity venting and draining is provided for both vertical and horizontal mounting. For
vertical mounted units, draining is via a drain screw and venting is possible with side vents
(Option Code -V). For horizontal mounted units, the unit is self draining and venting is via a
vent screw.
Figure 13. Vertical Mounting - Cavity Draining
PROCESS
COVER
DRAIN SCREW
Figure 14. Vertical Mounting - Cavity Venting
OPTIONAL
SIDE VENT
SHOWN
PLUG
Figure 15. Horizontal Mounting - Cavity Venting
VENT SCREW
LP1 Low Profile Structure
Sensor cavity venting and draining is provided for both vertical and horizontal mounting. For
vertical mounted units, the transmitter is self draining and venting is via a vent screw. For
horizontal mounted units, the transmitter can simply be ‘turned over’ (rotated 180 degrees) to
orient the high and low pressure sides in the preferred locations. There is no need to unbolt the
process covers. If the transmitter is connected with a length of impulse piping, such piping should
slope up to the transmitter for gas applications and down for liquid applications.
28
2. Installation
MI IDP25-T/IDP50-T – August 2016
Figure 16. Vertical Mounting - Cavity Venting
VENT
SCREW
IN-LINE
PROCESS
CONNECTION
Figure 17. Horizontal Mounting - Cavity Venting and Draining
PROCESS
CONNECTION
VENT
SCREW
PROCESS
CONNECTION
DRAIN
SCREW
LP2 Low Profile Structure
The transmitter with LP2 low profile structure had a full-featured vent and drain design with
separate vent and drain screws positioned in each cover for complete venting and draining from
the sensor cavity.
Figure 18. Cavity Venting and Draining
VENT &
DRAIN
SCREWS
Installation of Flow Measurement Piping
Figures 19 and 20 show typical installations with horizontal and vertical process pipes.
The transmitters are shown below the level of the pressure connections at the pipe (usual
arrangement, except for gas flow without a seal liquid), and with filling tees in the lines to the
transmitter (for a seal liquid).
29
MI IDP25-T/IDP50-T – August 2016
2. Installation
If the process fluid being measured must not come in contact with the transmitter, the transmitter
lines must be filled with a suitable seal liquid (see procedure in next section). In such a case, the
transmitter must be mounted below the level of the pressure connections at the pipe. With steam
flow, the lines are filled with water to protect the transmitter from the hot steam. The seal liquid
(or water) is added to the lines through the filling tees. To prevent unequal heads on the
transmitter, the tees must be at the same elevation and the transmitter must be mounted vertically
(as shown). If a seal liquid is not required, elbows can be used in place of the tees.
Tighten drain plugs and optional vent screws to 20 N⋅m (15 lb⋅ft). Tighten the four process
connector bolts to a torque of 61 N⋅m (45 lb⋅ft).
Note that the low and high pressure sides of the transmitter are identified by an L-H marking on
the side of the sensor above the warning label.
With medium viscosity seal liquids and/or long transmitter lines, larger valve sizes should be used.
NOTE
1. With a horizontal line, pressure connections at the pipe should be at the side of the
line. However, with gas flow without a seal liquid, connections should be at top of
line.
2. With a vertical line, flow should be upwards.
3. For liquid or steam flow, the transmitter should be mounted lower than the
pressure connections at the pipe.
4. For gas flow without a seal liquid, the transmitter should be mounted above the
pressure connections at the pipe; for gas flow with a seal liquid, the transmitter
should be mounted below the pressure connections.
5. It is recommended that you use snubbers in installations prone to high levels of
fluid pulsations.
Figure 19. Example of Horizontal Process Line Installation
SHUT OFF VALVES
DIRECTION OF
PROCESS FLOW
TRANSMITTER
HIGH
PRESSURE
SIDE
FILLING TEES
LOW PRESSURE SIDE
PIPE OR TUBING
OPTIONAL 3-VALVE MANIFOLD
30
2. Installation
MI IDP25-T/IDP50-T – August 2016
Figure 20. Example of Vertical Process Line Installation
DIRECTION OF
PROCESS FLOW
PROCESS
SHUTOFF VALVES
TRANSMITTER
FILLING TEES
LOW
PRESSURE
SIDE
HIGH PRESSURE SIDE
PIPE OR TUBING
OPTIONAL 3-VALVE MANIFOLD
Filling System with Seal Liquid
If the process fluid being measured must not come in contact with the transmitter, the transmitter
lines must be filled with a suitable seal liquid. The procedure to do this is as follows:
1. If the transmitter is in service, follow the procedure for “Taking a Differential Pressure
Transmitter Out of Operation” on page 39.
2. Close both process shutoff valves.
3. Open all three valves on the 3-valve manifold.
4. Partially open the vent screws on the transmitter until all air has been forced out of the
transmitter body and lines. Close the vent screws.
5. Refill the tee connections. Replace the plugs and close the bypass valve. Check for
leaks.
6. Follow the procedure for “Putting a Differential Pressure Transmitter Into Operation”
on page 39.
31
MI IDP25-T/IDP50-T – August 2016
!
2. Installation
CAUTION
To prevent loss of seal liquid and contamination of process fluid, never open both
process shutoff valves and manifold shutoff valves if the bypass valve is open.
Positioning the Housing
The transmitter housing (topworks) can be rotated up to one full turn in the counterclockwise
direction when viewed from above for optimum access to adjustments, display, or conduit
connections. Housings have either an anti-rotation screw or a retention clip that prevent the
housing from being rotated beyond a safe depth of housing/sensor thread engagement.
!
WARNING
If the electronics housing is removed for maintenance, it must be hand tightened to
the bottom of the threads, but not over-tightened upon reassembly. See “Removing
and Reinstalling a Housing Assembly” on page 73.
Figure 21. Housing Screw or Clip Location
RETENTION CLIP
HOUSING
CUP
ANTI-ROTATION SCREW
OR RETENTION CLIP
CLIP
Positioning the Display
The display (optional in some models) can be rotated within the housing to any of four positions
at 90° increments. To do this, grasp the two tabs on the display and rotate it about 10° in a
counterclockwise direction. Pull out the display. Ensure that the O-ring is fully seated in its
groove in the display housing. Turn the display to the desired position, reinsert it in the
electronics module, aligning the tabs on the sides of the assembly, and twist it in the clockwise
direction.
!
32
CAUTION
Do not turn the display more than 180° in any direction. Doing so could damage its
connecting cable.
2. Installation
MI IDP25-T/IDP50-T – August 2016
Setting the Write Protect Jumper
Your transmitter has write protection capability. This means that the external zero, local display,
and remote communications can be prevented from writing to the electronics. Write protection is
set by moving a jumper that is located in the electronics compartment behind the optional
display. To activate write protection, remove the display as described in the previous section, then
remove the jumper or move it to the lower position as shown on the exposed label. Replace the
display.
Cover Locks
Electronic housing cover locks, shown in Figure 22, are provided as standard with certain agency
certifications and as part of the Custody Transfer Lock and Seal option. To lock the covers,
unscrew the locking pin until approximately 6 mm (0.25 in) shows, lining up the hole in the pin
with the hole in the housing. Insert the seal wire through the two holes, slide the seal onto the
wire ends and crimp the seal.
Figure 22. Cover Lock Location
COVER LOCK (2) (IF PRESENT)
Wiring
The installation and wiring of your transmitter must conform to local code requirements.
!
WARNING
ATEX requires that when the equipment is intended to be used in an explosive
atmosphere caused by the presence of combustible dust, cable entry devices and
blanking elements shall provide a degree of ingress protection of at least IP6X. They
shall be suitable for the conditions of use and correctly installed.
NOTE
It is recommended that you use transient/surge protection in installations prone to
high levels of electrical transients and surges.
33
MI IDP25-T/IDP50-T – August 2016
2. Installation
Accessing Transmitter Field Terminals
For access to the field terminals, thread the cover lock (if present) into the housing to clear the
threaded cover and remove the cover from the field terminals compartment as shown in
Figure 23. Note that the embossed letters FIELD TERMINALS identify the proper compartment.
Figure 23. Accessing Field Terminals
1/2 NPT, PG 13.5 OR M20 CONDUIT CONNECTION FOR
CUSTOMER WIRING. ONE ON OPPOSITE SIDE ALSO.
PLUG UNUSED OPENING WITH PLUG PROVIDED (OR
EQUIVALENT).
REMOVE COVER TO ACCESS
WIRING TERMINALS.
EXTERNAL EARTH
(GROUND)
Figure 24. Identification of Field Terminals
BANANA PLUG RECEPTACLES FOR
HART CONNECTIONS
EARTH (GROUND) SCREW
(+)
TRANSMITTER
SIGNAL
CONNECTIONS
(–)
(+)
(-)
HHT
CAL
BANANA PLUG RECEPTACLES FOR
CALIBRATION CONNECTIONS. TO READ
TRANSMITTER OUTPUT, ATTACH METER
LEADS HERE (100 TO 500 mV REPRESENTING 4 TO 20 mA CURRENT).
OPTIONAL SHORTING BAR (SB-11) TO
REDUCE MINIMUM VOLTAGE FROM
11.5 V dc to 11 V dc ALSO PLUGS IN HERE.
Wiring the Transmitter to a Control Loop
When wiring the transmitter, the supply voltage and loop load must be within specified limits.
The supply output load vs. voltage relationship is:
RMAX = 47.5 (V - 11.5) and is shown in Figure 25.
NOTE
The relationship when the optional shorting bar is used is:
RMAX = 46.8 (V - 11).
34
2. Installation
MI IDP25-T/IDP50-T – August 2016
Any combination of supply voltage and loop load resistance in the shaded area can be used. To
determine the loop load resistance (transmitter output load), add the series resistance of each
component in the loop, excluding the transmitter. The power supply must be capable of
supplying 22 mA of loop current.
Figure 25. Supply Voltage and Loop Load
1450
1400
TYPICAL SUPPLY VOLTAGE
AND LOAD LIMITS
1300
1200
V DC
LOAD (OHMS)
1100
24
30
32
250 AND 594
250 AND 880
250 AND 975
1000
NOTES:
1. The minimum load for the HART Communicator
is 250 W.
2. The transmitter can function with an output load
less than the minimum, provided that a remote
configurator is NOT connected to it. Connecting
a remote configurator while operating in this area
could cause output disturbances and/or communication problems.
OUTPUT LOAD, W
900
800
700
600
500
MINIMUM LOAD
(SEE NOTE)
OPERATING AREA
400
300
200
100
0
0
10
20
30
11.5
40
42
SUPPLY VOLTAGE, V dc
Examples:
1. For a loop load resistance of 880 Ω, the supply voltage can be any value from 30 to
42 V dc.
2. For a supply voltage of 24 V dc, the loop load resistance can be any value from 250 to
594 Ω (zero to 594 Ω without a HART Communicator connected to the transmitter).
35
MI IDP25-T/IDP50-T – August 2016
2. Installation
To wire one or more transmitters to a power supply, proceed with the following steps.
1. Remove the cover from the transmitter field terminals compartment.
2. Run signal wires (0.50 mm2 or 20 AWG, typical) through one of the transmitter
conduit connections. Use twisted single pair to protect the 4 to 20 mA output and/or
remote communications from electrical noise. Maximum recommended length for
signal wires is:
♦ 3050 m (10,000 ft) using single pair cable and adhering to requirements of
HART physical layer implementation defined in HART Document HCF_SPEC53. Use CN=1 when calculating max. lengths.
♦ 1525 m (5000 ft) in a multidrop (15 devices maximum) mode.
Screened (shielded) cable could be required in some locations.
NOTE
Do not run transmitter wires in same conduit as mains (ac power) wires.
3. If shielded cable is used, earth (ground) the shield at the power supply only. Do not
ground the shield at the transmitter.
4. Plug unused conduit connection with the 1/2 NPT, PG 13.5 or M20 metal plug
provided (or equivalent). To maintain specified explosionproof and dustignitionproof protection, plug must engage a minimum of five full threads.
5. Connect an earth (ground) wire to the earth terminal in accordance with local
practice.
!
CAUTION
If the signal circuit must be earthed (grounded), it is preferable to do so at the negative
terminal of the dc power supply. To avoid errors resulting from earth loops or the
possibility of short-circuiting groups of instruments in a loop, there should be only
one earth in a loop.
6. Connect the power supply and receiver loop wires to the “+” and “–” terminal
connections.
7. Connect receivers (such as controllers, recorders, indicators) in series with power
supply and transmitter as shown in Figure 26.
8. Reinstall the cover onto the housing by rotating it clockwise to seat the O-ring into
the housing and then continue to hand tighten until the cover contacts the housing
metal-to-metal. If cover locks are present, lock the cover per the procedure described
in “Cover Locks” on page 33.
9. If wiring additional transmitters to the same power supply, repeat Steps 1 through 8
for each additional transmitter. The setup with multiple transmitters connected to a
single power supply is shown in Figure 27.
10. The HART Communicator or PC-Based Configurator can be connected in the loop
between the transmitter and the power supply as shown in Figures 26 and 27. Note
that a minimum of 250 Ω must separate the power supply from the HART
Communicator or PC-Based Configurator.
36
2. Installation
MI IDP25-T/IDP50-T – August 2016
Figure 26. Loop Wiring Transmitters
AREA CLASSIFICATION NOT TO EXCEED
RATING SPECIFIED ON TRANSMITTER
DATA PLATE or Hart communicator.
EARTH
(GROUND)
SCREW
NON-HAZARDOUS
LOCATION
pc-based(b)
configurator
INTRINSIC
SAFETY
BARRIER.
FIELD
TERMINALS
(a)
CONDUIT
INDICATOR
+
PLUG
UNUSED
CONDUIT
CONNECTION
+
POWER
SUPPLY
_
_
+
HART COMMUNICATOR
_
CONTROLLER
OR RECORDER
(b)
(a) Run conduit down to avoid moisture buildup in terminals compartment.
(b) There must be at least 250 Ω total resistance between the HART Communicator
or pc-based configurator and the Power Supply.
Figure 27. Wiring Several Transmitters to a Common Power Supply
POWER
SUPPLY
250 Ω
min.(a)
+
250 Ω
min.(a)
+
–
–
TRANSMITTER
TRANSMITTER
250 Ω
min.(a)
+
–
TRANSMITTER
(a) 250 Ω MINIMUM LOAD (INCLUDING RESISTANCE OF OTHER INSTRUMENTS)
IN EACH LOOP IS REQUIRED WHEN USING A HART COMMUNICATOR
OR PC-BASED CONFIGURATOR.
HART COMMUNICATOR
OR PC-BASED
CONFIGURATOR
(b)
(b) CONNECT HART COMMUNICATOR OR PC-BASED CONFIGURATOR BETWEEN
TRANSMITTER AND ITS ASSOCIATED INSTRUMENTS AS SHOWN.
Multidrop Communication
“Multidropping” refers to the connection of several transmitters to a single communications
transmission line. Communications between the host computer and the transmitters takes place
digitally with the analog output of the transmitter deactivated. With the HART communications
protocol, up to 15 transmitters can be connected on a single twisted pair of wires or over leased
telephone lines.
37
MI IDP25-T/IDP50-T – August 2016
2. Installation
The application of a multidrop installation requires consideration of the update rate necessary
from each transmitter, the combination of transmitter models, and the length of the transmission
line. Multidrop installations are not recommended where Intrinsic Safety is a requirement.
Communication with the transmitters can be accomplished with any HART compatible modem
and a host implementing the HART protocol. Each transmitter is identified by a unique address
(1-15) and responds to the commands defined in the HART protocol.
Figure 28 shows a typical multidrop network. Do not use this figure as an installation diagram.
Contact the HART Communications Foundation, (512) 794-0369, with specific requirements
for multidrop applications.
Figure 28. Typical Multidrop Network
HOST
MODEM
LOAD
POWER
SUPPLY
IDP10-T
IDP10-T
IDP10-T
The HART Communicator can operate, configure, and calibrate IASPT transmitters with HART
communication protocol in the same way as it can in a standard point-to-point installation.
NOTE
IASPT transmitters with HART communication protocol are set to poll address 0
(POLLADR 0) at the factory, allowing them to operate in the standard point-to-point
manner with a 4 to 20 mA output signal. To activate multidrop communication, the
transmitter address must be changed to a number from 1 to 15. Each transmitter
must be assigned a unique number on each multidrop network. This change
deactivates the 4 to 20 mA analog output.
Connecting the Transmitter to an I/A Series System
The transmitter can also send its measurement to an I/A Series system as a digital signal via an
FBM214/215. Wiring terminations at the transmitter are the same as described above. For other
system wiring details, refer to the installation instructions provided with the I/A Series system.
38
2. Installation
MI IDP25-T/IDP50-T – August 2016
Putting a Differential Pressure Transmitter Into
Operation
The following procedure explains how to sequence the valves in your flow measurement piping or
optional bypass manifold to ensure that your transmitter is not overranged and that seal liquid is
not lost. Refer to Figures 19 and 20.
NOTE
This procedure assumes that the process shutoff valves are open.
1. Make sure that both upstream and downstream manifold valves are closed.
2. Make sure that the bypass valve is open.
3. Slowly open the upstream manifold valve.
4. Close the bypass valve.
5. Slowly open the downstream manifold valve.
Taking a Differential Pressure Transmitter Out of
Operation
The following procedure explains how to sequence the valves in your flow measurement piping or
optional bypass manifold to ensure that your transmitter is not overranged and that seal liquid is
not lost. Refer to Figures 19 and 20.
NOTE
This procedure assumes that the process shutoff valves are open.
1. Close the downstream manifold valve.
2. Close the upstream manifold valve.
3. Open the bypass valve.
4. Carefully open the vent screw to release any residual pressure before disconnecting
lines.
!
WARNING
When venting pressure from the transmitter, wear suitable protective equipment to
prevent possible injury from process material, temperature, or pressure.
39
MI IDP25-T/IDP50-T – August 2016
40
2. Installation
3. Operation Via Local Display
A local display, as shown in Figure 29, has two lines of information. The upper line is a 5-digit
numeric display (4-digit when a minus sign is needed); the lower line is a 7-digit alphanumeric
display. The display provides local indication of measurement information. The primary (M1)
measurement is normally displayed. To view the secondary (M2) measurement, press the Enter
button while in normal operating mode. Press the Next or Enter button to return to the primary
measurement. If left in M2 display, an M2 message blinks in the lower right of the display. If
power to the transmitter is interrupted, the display reverts to the M1 display.
The display also provides a means for performing calibration and configuration, viewing the
database, and testing the display via the 2-button keypad. You can access these operations by
means of a multi-level menu system. Entry to the Mode Select menu is made (from normal
operating mode) by pressing the Next button. You can exit this menu, restore your prior
calibration or configuration, and return to the normal operating mode at any time by going to
Cancel and pressing the Enter button.
The following items can be selected from this menu: Calibration (CALIB). Configuration
(CONFIG), Viewing the database (VIEW DB), and Testing the display (TST DSP). The top level
structure diagram is shown in Figure 30.
Figure 29. Local Display Module
34.5
inH2O
NEXT
ENTER
NEXT
PUSHBUTTON
ENTER
PUSHBUTTON
EXTERNAL ZERO BUTTON
(LATCHED [NONACTIVATING] POSITION)
41
MI IDP25-T/IDP50-T – August 2016
3. Operation Via Local Display
Figure 30. Top Level Structure Diagram
E
DISPLAY M1 AND M1 EGU
DISPLAY M2 AND M2 EGU
N or E
N
E
CALIB
N
CONFIG
E
LOCAL MODE, GO TO CALIBRATION MENU
OFF-LINE, GO TO CONFIGURATION MENU
N
VIEW DB
E
N
TST DSP
E
ON-LINE MODE
N
N
CANCEL
ON-LINE MODE
N
STEP THROUGH DATABASE DISPLAY
E
E
E
STEP THROUGH DISPLAY TEST PATTERN
EXIT MODE SELECT MENU, RETURN TO ON-LINE MODE
N
N = NEXT BUTTON
E = ENTER BUTTON
Entering Numerical Values
The general procedure for entering numerical values in Calibration and Configuration is as
follows:
1. At the appropriate prompt, press the Enter button. The display shows the last (or
default) value with the first digit flashing.
2. Use the Next button to select the desired first digit, then press the Enter button. Your
selection is entered and the second digit flashes.
3. Repeat Step 2 until you have created your new value. If the number has less than five
characters, use leading or trailing zeros for the remaining spaces. When you have
configured the fifth space, the display prompts you to place the decimal point.
4. Move the decimal point with the Next button until it is where you want it and press
the Enter button.
42
3. Operation Via Local Display
MI IDP25-T/IDP50-T – August 2016
NOTE
The decimal point may not be placed directly after the first digit. For example, you
can not enter a value as 1.2300; you must enter it as 01.230.
The decimal position is identified by flashing except at the position after the fifth
digit. At that position (representing a whole number), the decimal point is assumed.
5. The display advances to the next menu item.
Viewing the Database
You can access the View Database mode by the multi-level menu system described above. Entry to
the Mode Select menu is made (from normal operating mode) by pressing the Next button. The
display reads CALIB, the first item on the menu. Press the Next button twice to get to the third
item on the menu, VIEW DB. Acknowledge your choice of this selection by pressing the Enter
button. The display shows the first item in the database. You can step through the database
display by repeated use of the Next button. You can abort this procedure at any time by pressing
the Enter button.
Viewing the Pressure Range
The values of M1LRV and M1 URV can be viewed in VIEW DB as described above. They can also be
viewed in the RERANGE function in Calibration mode.
Testing the Display
You can access the Test Display mode by the same multi-level menu system that was used to enter
Calibration, Configuration, and View Database mode. Entry to the Mode Select menu is made
(from normal operating mode) by pressing the Next button. The display reads CALIB, the first
item on the menu. Press the Next button three times to get to the fourth item on the menu, TST
DSP. Acknowledge your choice of this selection by pressing the Enter button. The display shows
the first test segment pattern. You can step through the five patterns by repeated use of the Next
button. You can abort the test at any time by pressing the Enter button. The five patterns are
shown in Figure 31.
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MI IDP25-T/IDP50-T – August 2016
3. Operation Via Local Display
Figure 31. Display Test Segment Patterns
ALL SEGMENTS ON
ALL SEGMENTS OFF
ALL HORIZONTAL SEGMENTS ON
ALL VERTICAL SEGMENTS ON
ALL DIAGONAL SEGMENTS AND DECIMAL POINTS ON
Error Messages
Table 4. Operation Error Messages
Parameter
Normal
Operation
Startup
44
Condition Tested
Error Message
Action
Write Protection
Enabled
WR PROT
Displays periodically to notify user that unit is
in Write Protect.
Any non-On-line
Condition
OFFLINE
Notifies user of a non-On-line condition.
Database OK or
corrupted
INITERR
User should perform SET GDB procedure.
See “SET GDB:” on page 66.
4. Calibration
NOTE
1. For best results in applications where high accuracy is required, rezero the
transmitter output once it has stabilized at the final operating temperature.
2. Zero shifts resulting from position effects and/or static pressure effects can be
eliminated by rezeroing the transmitter output.
3. When checking the zero reading of a transmitter operating in the square root
mode, return the output to the linear mode. This eliminates an apparent instability
in the output signal. Return the transmitter output to the square root mode after
the zero check is complete.
4. After calibrating transmitters operating with a 4 to 20 mA (or 1 to 5 V dc) output
signal, check the underrange and overrange output values to ensure that they
extend beyond 4 and 20 mA (or 1 and 5 V dc) respectively.
General Calibration Notes
1. Each transmitter is factory characterized over its full rated pressure range. One benefit
of this process is that every transmitter can measure any applied differential pressure
within its range limits regardless of the calibrated range. The applied differential
pressure is measured and converted into an internal digital value of differential
pressure. This digital value of differential pressure is always available whether the
transmitter is calibrated or not. Calibration assures that the transmitter rated accuracy
is achieved over the calibrated range.
2. The internal digital value of differential pressure can be displayed on the optional local
display, transmitted digitally, and converted to a 4 to 20 mA analog output signal.
3. Each transmitter is factory calibrated to either a specified or a default calibrated range.
This calibration optimizes the accuracy of the internal digital value of differential
pressure over that range. If no range is specified, the default range is zero to the sensor
upper range limit (URL).
4. The transmitter database has configurable values for both Lower Range Value (LRV)
and upper range value (URV). These values are used for two functions.
a. Defining the Calibrated Range When Using Local Pushbuttons for Calibration:
♦ When either CAL LRV or CAL URV is initiated from the local pushbuttons, the
transmitter expects that the differential pressure applied at the time the button
is pressed is equal to the LRV or URV value respectively.
♦ This function trims the internal digital value of differential pressure; that is, it
performs a calibration based on the application of accurate differential
pressures equal to the values entered for LRV and URV in the transmitter
database.
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MI IDP25-T/IDP50-T – August 2016
4. Calibration
♦ This function also sets the 4 and 20 mA output points; that is, the 4 and 20
mA points correspond to the values of LRV and URV in the database.
♦ The value of LRV can be larger than the value of URV.
b. Reranging Without the Application of Pressure:
♦ Since the transmitter continually determines an internal digital value of the
measured differential pressure from the lower range limit (LRL) to the upper
range limit (URL), the 4 and 20 mA output points can be assigned to any
differential pressure values (within the span and range limits) without
application of pressure.
♦ The reranging function is accomplished by entering new database values for
LRV and URV.
♦ Reranging does not affect the calibration of the transmitter; that is, it does not
affect the optimization of the internal digital value of differential pressure over
a specific calibrated range.
♦ If the reranged LRV and URV are not within the calibrated range, the
measured values may not be as accurate as when they are within the calibrated
range.
If the transmitter is in square root mode for flow rate measurement, the URV in the
database is displayed as the flow rate URV when the view database (VIEW DB)
function is used. However, the LRV and URV in pressure units can be displayed by
selecting the reranging (RERANGE) function. LRV is always zero when the transmitter
is configured for square root mode.
5. When the optional local display is used, the internal digital value of differential
pressure is sent directly to the indicator.
♦ The display can show any measured differential pressure in selected units
regardless of the calibrated range and the values of LRV and URV (within the
limits of the transmitter and display).
♦ If the measured differential pressure is outside the range established by the LRV
and URV values in the database, the display shows the measurement but also
continually blinks to indicate that the measurement is out of range. The mA
current signal is saturated at either the low or high overrange limit respectively but
the display continually shows the pressure.
6. When configured for 4 to 20 mA output, the internal digital value of differential
pressure is converted to an analog current signal.
♦ The transmitter sets the output at 4 mA for the LRV and 20 mA for the URV.
♦ There is an independent trim on the digital-to-analog conversion stage. This trim
allows for slight adjustment of the 4 and 20 mA outputs. This compensates for
any slight difference that exists between the transmitter mA output and an
external reference device which is measuring the current.
46
4. Calibration
MI IDP25-T/IDP50-T – August 2016
♦ The mA trim does not affect the calibration or the reranging of the transmitter
and does not affect the internal digital value of differential pressure or the
transmission or display of measured pressure.
♦ The mA trim can be done with or without pressure applied to the transmitter.
7. Zeroing from the local display does not affect the span.
When the transmitter is zeroed to compensate for installed position effect, the
transmitter can have either LRV differential pressure applied (CAL LRV) or zero
differential pressure applied (CAL AT0). If using a zero-based range, either method
produces the same result. However, if the range is not zero-based, it is advantageous to
have both methods available.
For example, consider a differential pressure transmitter having a range of 50 to 100
psig. If it is not feasible to vent the transmitter to atmosphere for zeroing (or to bypass
the high and low sides for zeroing), it can be zeroed while the LRV differential
pressure of 50 psi is applied by using the CAL LRV function. On the other hand, if the
transmitter has been installed but there is no pressure in the process line yet (or the
high and low sides can be connected by a bypass valve), it can be zeroed while open to
atmosphere (or bypassed) by using the CAL AT0 function.
a. Zeroing with LRV Pressure Applied (CAL LRV):
♦ Before using this zeroing function, apply a differential pressure to the
transmitter equal to the value of LRV stored in the transmitter database.
♦ When you zero the transmitter, the internal digital value of differential
pressure is trimmed to be equal to the value of LRV stored in the database and
the mA output set to 4 mA.
♦ If zeroing is done when the applied differential pressure is different from the
LRV value in the database, the internal digital value of differential pressure is
biased by the difference in the values but the output is still set at 4 mA.
♦ The CAL LRV and CAL URV function should be used when calibrating a
transmitter for a specific range with known input differential pressures applied
for the LRV and URV.
b. Zeroing with Zero Pressure Applied (CAL AT0):
♦ Make sure that the applied differential pressure is at zero. This means venting
the transmitter to atmosphere or opening a bypass valve to connect high and
low sides.
♦ When you zero the transmitter, the internal digital value of the differential
pressure is trimmed to be equal to zero and the mA output set to an
appropriate value such that the mA output is a nominal 4 mA when the LRV
pressure is applied later.
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MI IDP25-T/IDP50-T – August 2016
4. Calibration
Calibration Setup
The following sections show setups for field or bench calibration. Use test equipment that is at
least three times as accurate as the desired accuracy of the transmitter.
NOTE
It is not necessary to set up calibration equipment to rerange the transmitter to a
different range. The transmitter can be accurately reranged by simply changing the
lower range value and the upper range value, which are stored in the transmitter
database.
Setup of Electronic Equipment
Figure 32. 4 to 20 mA Output Calibration Setup of Electronic Equipment
VOLTMETER
POWER SUPPLY
(+)
(–)
(–) (+)
(–) (+)
250 Ω PRECISION RESISTOR
Resistor: 250 Ω, ±0.01%, 1 W minimum (Part No. E0309GY)
PC-BASED
CONFIGURATOR,
OR HART
COMMUNICATOR
Power supply: Refer to Figure 25
Digital Voltmeter: readings from 1.000 to 5.000 V dc
Field Calibration Setup
Field calibration is performed without disconnecting the process piping. In order to do this, you
must have a bypass and shutoff valves between the process and the transmitter and one of the
following:
♦ Access to the process connections on the nonprocess side of the transmitter
♦ The optional vent screw in the side of the process covers.
If the transmitter is to be removed from the process for calibration, refer to “Bench Calibration
Setup” on page 49.
For field calibration, an adjustable air supply and a pressure measuring device are required. For
example, a dead weight tester or an adjustable clean air supply and pressure gauge can be used.
The pressure source can be connected to the transmitter process connection with pipe fittings or it
can be connected to the vent screw assembly using a calibration screw. The calibration screw has a
Polyflo fitting and can be used for pressures up to 700 kPa (100 psi). It is available as Foxboro Part
Number F0101ES.
48
4. Calibration
MI IDP25-T/IDP50-T – August 2016
To set up the equipment, refer to Figure 32 and use the following procedure.
1. If the transmitter is in operation, follow the “Taking a Differential Pressure
Transmitter Out of Operation”procedure on page 39.
!
CAUTION
With liquid service, drain both sides of transmitter to avoid calibration errors.
2. If a calibration screw is being used, remove the vent screw and replace it with the
calibration screw. Connect the pressure source to the calibration screw using
6 x 1 mm or 0.250 inch tubing.
If a calibration screw is not being used, remove the entire vent screw assembly or drain
plug (as applicable) from the high pressure side of the transmitter. Connect calibration
tubing using a suitable thread sealant.
3. Close the bypass valve opened in Step 1.
4. Complete the setup shown in Figure 33.
NOTE
For vacuum applications, connect the calibrating pressure source to the low pressure
side of the transmitter.
5. If calibrating the output signal, also connect equipment as shown in Figure 32.
Figure 33. Field Calibration Setup
BYPASS VALVE
SHUTOFF VALVES
Note: Alternate connection point for calibrating
equipment is optional vent screw (not shown) on
high pressure side cover.
HIGH PRESSURE SIDE
CALIBRATING
PRESSURE
SOURCE
BLEEDER VALVES
(NEEDLE TYPE)
Bench Calibration Setup
The bench calibration setup requires disconnecting the process piping. For calibration setup
without disconnecting the process piping, refer to “Field Calibration Setup” on page 48.
The bench calibration setup is shown in Figure 34. Connect the input piping to the high pressure
side of the transmitter as shown. Vent the low pressure side of the transmitter.
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MI IDP25-T/IDP50-T – August 2016
4. Calibration
NOTE
For vacuum applications, connect the calibrating pressure source to the low pressure
side of the transmitter.
If calibrating the output signal, also connect equipment as shown in Figure 32.
Figure 34. Bench Calibration Setup
BYPASS VALVE
HIGH PRESSURE SIDE
SHUTOFF VALVES
CALIBRATING
PRESSURE
SOURCE
BLEEDER VALVES
(NEEDLE TYPE)
Calibration Using a PC50
To calibrate the transmitter using a PC50 Configurator, follow the procedure in MI 020-501 and
MI 020-520.
Calibration Using a HART Communicator
To calibrate the transmitter using a HART Communicator, follow the procedure in MI 020-366.
Calibration Using the Optional Local Display
To access the Calibration mode (from normal operating mode), press the Next button. The
display reads CALIB, the first item on the menu. Acknowledge your choice of this selection by
pressing the Enter button. The display shows the first item in the Calibration menu.
50
4. Calibration
MI IDP25-T/IDP50-T – August 2016
NOTE
1. During calibration, a single change could affect several parameters. For this reason,
if an entry is entered in error, re-examine the entire database or use the Cancel
feature to restore the transmitter to its starting configuration and begin again.
2. During adjustment of 4 and 20 mA in the Calibration menu, the milliampere
output does not reflect live measurement values.
Table 5. Calibration Menu
Item
Description
CAL AT0
Calibrate at zero pressure.
CAL LRV
Calibrate with pressure at 0% of transmitter range (LRV).
CAL URV
Calibrate with pressure at 100% of transmitter range (URV).
ADJ 4mA
Adjust nominal 4 mA output.
ADJ20mA
Adjust nominal 20 mA output.
RERANGE
Adjust primary upper and lower range values.
CALDATE
Enter the calibration date.
ADJ 4mA causes the following four submenus.
A 4mAΔΔ
Increase 4 mA output by large step.
A 4mA∇∇
Decrease 4 mA output by large step.
A 4mAΔ
Increase 4 mA output by small step.
A 4mA∇
Decrease 4 mA output by small step.
ADJ 20mA causes the following four submenus.
A 20mAΔΔ
Increase 20 mA output by large step.
A 20mA∇∇
Decrease 20 mA output by large step.
A 20mAΔ
Increase 20 mA output by small step.
A 20mA∇
Decrease 20 mA output by small step.
RERANGE causes the following two submenus.
M1 URV
Adjust upper range value.
M1 LRV
Adjust lower range value.
NOTE
It is not necessary to use the ADJ4mA or ADJ20mA menu selections unless there is a
plant requirement to make the 4 and 20 mA output values exactly match readings on
certain plant calibration equipment and the ZERO and SPAN operations done result in
a small but unacceptable difference between the transmitter mA output and the test
equipment mA readout values.
Proceed to calibrate your transmitter by using the Next key to select your item and the Enter key
to specify your selection per Figures 35 and 36. At any point in the calibration you can Cancel,
restore your prior calibration and return to the on-line mode or Save your new calibration.
51
MI IDP25-T/IDP50-T – August 2016
4. Calibration
Figure 35. Calibration Structure Diagram (1 of 2)
E
CAL AT0
N
AT0 DONE
E
CAL AT0: To set or reset the zero point at zero
pressure, apply zero differential pressure to the
transmitter and, at display of CAL AT0, press
Enter. This can be done whether LRV is zero
or not. Completion is indicated by the display
AT0 Done.
N
E
E
CAL LRV
N
LRV DONE
N
E
E
CAL URV
N
URV DONE
N
E = ENTER
N = NEXT
ADJ 4mA
E
A 4mAΔΔ
N
N
A 4mA∇∇
N
N
N
N
N
E
N
A 4mA∇∇
E
A 4mAΔ
E
E
A 4mA∇
A 4mAΔΔ
E
E
A 4mAΔ
N
E
E
ADJ4mA: If you configured your transmitter
operating mode as 4 to 20 mA, you can adjust
the 4 mA output by going to ADJ4mA using the
Next button and press Enter. This menu item
is bypassed if you configured your transmitter
operating mode as digital.
E
N
N
A 20mA∇∇
N
N
N
A 20mAΔ
N
N
A 20mA∇
N
N
RERANGE
(continued on next figure)
52
E
A 20mAΔΔ
E
E
A 20mA∇∇
E
E
A 20mAΔ
E
E
E
CAL URV: To set or reset 100% of range input,
apply differential pressure to the transmitter
equal to the upper range value (URV) in the
transmitter database and, at display of
CAL URV, press Enter. Completion is
indicated by the display URV Done.
A 4mA∇
ADJ20mA
A 20mAΔΔ
CAL LRV: To set or reset 0% of range input,
apply differential pressure to the transmitter
equal to the lower range value (LRV) in the
transmitter database and, at display of
CAL LRV, press Enter. Completion is
indicated by the display LRV Done.
A 20mA∇
To increase the 4 mA output by a large
(0.025 mA) step, press Enter at the display
A 4mAΔΔ. To decrease it by a large step, go to the
display A 4mA∇∇ by pressing the Next button
and then Enter. To increase it by a small
(0.001 mA) step, go to the display A 4mAΔ with
the Next button and then press Enter. To
decrease it by a small step, go to the display
A 4mA∇ with the Next button and then press
Enter.
4. Calibration
MI IDP25-T/IDP50-T – August 2016
Figure 36. Calibration Structure Diagram (2 of 2)
(CONTINUED FROM PREVIOUS FIGURE)
RERANGE
E
E
M1 URV
N
**
Display Digit
N
E
Increment Digit
*
N
E
M1 LRV
N
CALDATE
**
Display Digit
E
N
Increment Digit
*
E
N
Display Day
Increment Day
E
N
Display Month
N
Increment Month
E
N
Display Year
Increment Year
E
CANCEL
E
Discard all changes, return to ONLINE.
N
SAVE
E
Save database changes, return to ONLINE.
N
*If character is not the last position on the display line, advances to next character.
**If character is the last position on the display line, advances to next menu item.
NOTE: Commentary about this diagram immediately follows.
Commentary on Figure 36
RERANGE:
To adjust 100% and 0% range values, go to Rerange with the Next button and press Enter.
You can then adjust M1 URV and/or M1 LRV in the following two submenus.
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MI IDP25-T/IDP50-T – August 2016
4. Calibration
NOTE
If M1 is in square root mode, regardless of engineering units selected, RERANGE must
be done in “default” pressure units. The “default” pressure units are:
• In inH2O, if M2 is a type of square root.
• In M2 EGU units, if M2 is linear.
The bottom line of the display indicates “default" units during RERANGE. Following
RERANGE, the display automatically switches back to the configured engineering units.
M1 URV:
To edit the upper range value, press Enter at the prompt M1 URV.
M1 LRV:
Similar to M1URV immediately above.
NOTE
M1 LRV is bypassed if M1 MODE is configured as square root since M1 LRV must be
zero.
CALDATE:
This is not a required entry but can be used for recordkeeping or plant maintenance purposes.
To edit the calibration date, go to CALDATE with the Next button and press Enter. You then
can change the day, month, and year. The display shows the last date with the day flashing.
Use the Next button to step through the menu of digits to select the desired day, then press
Enter. Repeat this process for the month and year.
Zero Adjustment Using External Zero Button
An external zero adjustment mechanism in the electronics housing allows local rezeroing of the
transmitter output without removing the electronics compartment cover. The mechanism is
magnetically activated through the housing wall to prevent moisture from entering the enclosure.
Zeroing is accomplished when the external zero button is depressed.
To use this feature:
1. Unlatch the external zero button by turning it 90° in a counterclockwise direction so
that the screwdriver slot lines up with the two holes in the face of the adjacent part.
Do not push the button in with the screwdriver while doing this.
2. With the applied process differential pressure (LRV) at the desired value, press the
button. The zero output of 4 mA is set at this pressure. If the transmitter contains the
optional display, the display indicates ZEROED. Other possible messages are: DISABLD
if EX ZERO is configured EXZ DIS, WAIT20S if the transmitter has just been powered
or a rezeroing has just been accomplished, and IGNORED if the transmitter is not in the
on-line mode.
NOTE
For the optional display and the digitally transmitted measurement to be correct, the
applied pressure must be equal to the value stored in the database for LRV. See
“General Calibration Notes” on page 45.
54
4. Calibration
MI IDP25-T/IDP50-T – August 2016
3. If additional rezeroing is required after Steps 1 and 2 have been accomplished, wait
20 seconds and repeat Step 2.
4. Relatch the external zero button by turning it 90° in a clockwise direction to prevent
accidental pressing of the button. Do not push the button in with the screwdriver
while doing this.
Error Messages
Table 6. Calibration Error Messages
Parameter
Condition Tested
Error Message
User Action
Password
Protection
Password
BAD PWD
Bad password entered, use another.
Write
Protection
Write protection enabled
REJECT
Displays when user attempts an action that is write
protected.
ZERO
Internal offset too large
BADZERO
Check applied pressure, configured M1
configured M1 EOFF.
LRV and
SPAN
Slope too large or too small
BADSPAN
Check applied pressure, configured M1
configured M1 EFAC.
LRV and
M1 URV
M1URV > max pressure in
EGU
URV>FMX
Entered pressure is greater than maximum rated
pressure of transmitter. Check entry. Verify EGUs.
M1URV < min pressure in
EGU
URV<FMN
Entered pressure is less than minimum rated
pressure of transmitter. Check entry. Verify EGUs.
M1 URV = M1 LRV
LRV=URV
Cannot set span to 0. Check entry. Check M1
M1 turndown exceeds limit
BADTDWN
M1 LRV
Check entry. Check M1
LRV.
LRV.
URV < 0 with M1 or M2 SqRt URV<LRV
Square root mode with nonzero LRV is not valid.
Change LRV to 0.
M1LRV > max pressure in
EGU
LRV>FMX
Entered pressure is greater than maximum rated
pressure of transmitter. Check entry. Verify EGUs.
M1LRV < min pressure in
EGU
LRV<FMN
Entered pressure is less than minimum rated
pressure of transmitter. Check entry. Verify EGUs.
M1 URV = M1 LRV
LRV=URV
Cannot set span to 0. check entry. Check M1
M1 turndown exceeds limit
BADTDWN
Check entry. Check M1
URV.
URV.
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MI IDP25-T/IDP50-T – August 2016
56
4. Calibration
5. Configuration
Configurable Parameters
Table 7 lists all the configurable parameters and the factory default for the IDP25-T and
IDP50-T Transmitters. The factory default values have been customized if the transmitter was
ordered with optional feature -C2. The table also shows which parameters are configurable with
the integral vs. remote configurators.
Table 7. Configurable Parameters
Configurable with
Parameter
Factory
Default
Capability
Integ.
Indic.
Remote
Config.
Application
Requirement
Descriptors
Tag Number
8 characters max
Tag Number
No
Yes
Descriptor
16 characters max
Tag Name
No
Yes
Message
32 characters max
Inst Location
No
Yes
Input
Calibrated Range
LRV to URV in units listed See (b) below
Yes
in (a) below
when not specified
per S.O.
Yes
Measurement #1 Output
(PV)
4 to 20 mA or Fixed
Current. Specify Poll
Address (1-15) for Fixed
Current.
4 to 20 mA
Yes
Yes
Measurement #1 Mode
Linear or type of square
root in (c) below
Linear
Yes
Yes
Measurement #1 EGUs
If linear, select from units Units of Calibrated Yes
Range
listed in (a) below;
If Sq.Rt., select from units
listed in (d) below
Yes
Measurement #2 Mode
(SV)
Linear or type of square
root in (c) below
Yes
Yes
Measurement #2 EGUs
If linear, select from units Units of Calibrated Yes
listed in (a) below;
Range
If Sq.Rt., select from units
listed in (d) below
Yes
Output
Linear
Temp. Sensor Fail Strategy
Normal oper. or failsafe
Fail-safe
Yes
Fail-safe
High or Low
High
Yes
Yes
External Zero
Enabled or Disabled
Enabled
Yes
Yes
Damping
0 to 32 seconds.
None
Yes
Yes
Poll Address
0 - 15
0
Yes
Yes
LCD Indicator (e)
Meas #1 EGU or % Lin
Meas #1 EGU
Yes
No
psi, inHg, ftH2O, inH2O, atm, bar, mbar, MPa, kPa, Pa, kg/cm2, g/cm2, mmHg, torr, mmH2O.
ISpan Code B: 0 to 200 inH2O; Span Code C: 0 to 1000 inH2O.
Square root with cutoff below 1% of calibrated pressure range or with linear below 4% of calibrated pressure range.
gal/s, gal/m, gal/h, gal/d, Mgal/d, ft3/s, ft3/m, ft3/h, ft3/d, Igal/s, Igal/m, Igal/h, Igal/d, l/s, l/m, l/h, Ml/d, m3/s, m3/m, m3/h, m3/d,
bbl/s, bbl/m, bbl/h, bbl/d, %flow.
e. Measurement #2 can be displayed at any time by pressing the Enter button regardless of the local display configuration. This
reverts to Measurement #1 or % Lin (as configured) when power is cycled off and on.
a.
b.
c.
d.
57
MI IDP25-T/IDP50-T – August 2016
5. Configuration
Configuration Using a PC50
To configure the transmitter using a PC50 Configurator, follow the procedure in MI 020-501
and MI 020-520.
Configuration Using a HART Communicator
To configure the transmitter using a HART Communicator, follow the procedure in MI 020-366.
Configuration Using the Optional Local Display
You can access the Configuration mode by the same multi-level menu system that was used to
enter Calibration mode. Entry to the Mode Select menu is made (from normal operating mode)
by pressing the Next button. The display reads CALIB, the first item on the menu. Press the Next
button again to get to the second item on the menu, CONFIG. Acknowledge your choice of this
selection by pressing the Enter button. The display shows the first item in the Configuration
menu. You can then configure items shown in Table 8. The standard factory default configuration
is also given in this table.
The standard factory default configuration is not used if custom configuration option -C2 has
been specified. Option -C2 is a full factory configuration of all parameters to the user’s
specifications.
NOTE
1. You can configure most parameters using the local display. However, for more
complete configuration capability, use a HART Communicator or PC-Based
configurator.
2. During configuration, a single change can affect several parameters. For this
reason, if an entry is entered in error, re-examine the entire database or use the
Cancel feature to restore the transmitter to its starting configuration and begin
again.
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5. Configuration
MI IDP25-T/IDP50-T – August 2016
Table 8. Configuration Menu
Item
POLLADR
Initial Factory
Configuration
Description
Poll Address: 0 - 15
0
EX ZERO (a)
External Zero: enable or disable
Enable
S2 FAIL
Temperature Sensor Failure Strategy: S2FATAL or S2NOFTL
S2NOFTL
OUT DIR
4 to 20 mA Output: forward or reverse
Forward
OUTFAIL
4 to 20 mA Output: fail mode output - low or high
High
OFFL MA
4 to 20 mA Output in offline mode - last or user set
USER MA
DAMPING
Damping: none, 1/4, 1/2, 1, 2, 4, 8, 16, or 32 seconds
None
M1 MODE
Output: linear or type of square root (b)
Linear
M1DISP
Local Indicator Display in linear mode: in percent or engineering
units
M1EGU
M1 EGU
User-Defined Engineering Units
inH2O or psi
RERANGE
Adjustment of 100% and 0% range limits
---
M1 URV
Primary Upper Range Value
URL
M1 LRV
Primary Lower Range Value
0
M2 MODE
Output: linear or type of square root
Linear
M2 EGU
User-Defined Engineering Units
Same as M1 EGU
DISPLAY
Show 1, Show 2, or Toggle (between M1 and M2)
Show 1
CALDATE
Calibration Date
---
ENA PWD
Enable password; no password, configuration only, or configuration
and calibration
NO PWD
CFG PWD
User set configuration password (six characters)
---
CAL PWD
User set calibration password (six characters)
---
SET GDB
Rewrite all calibration and configuration values with default values
---
a. Applies only if transmitter contains External Zero option.
b. Square root is not applicable to absolute pressure, gauge pressure, and flange level measurement.
Proceed to configure your transmitter by using the Next button to select your item and the Enter
button to specify your selection per the following figures. At any point in the configuration you
can Cancel your changes and return to the on-line mode, or Save your changes.
59
MI IDP25-T/IDP50-T – August 2016
5. Configuration
Figure 37. Configuration Structure Diagram (1 of 3)
E
POLLADR
0
N
EX ZERO
E
EXZ DIS
E
S2 NOFTL
N
E
OUT FWD
E
FAIL LO
1. OUTFAIL sets mA output to go
either High or Low under certain
failure conditions, such as a sensor
failure.
E
N
2. Square root functions should not
be selected on absolute and gauge
pressure or level transmitters.
OUT REV
3. LIN PCT provides percent output
on LCD indicator only (linear mode).
Percent flow in square root is selectable
under MI EGU.
E
N
FAIL HI
E
E
E
NOTES:
S2 FATAL
E
N
OFFL MA
EXZ ENA
E
N
N
LAST MA
USER MA
E
Display
Digit
E
E
N
E
E
E
N
OUTFAIL
N
15
2
E
E
S2 FAIL
N
N
1
E
N
OUT DIR*
N
N
Implement
Digit
N
DAMPING
E
N
NO DAMP
N
DAMP 1/2
E
E
E
N
DAMP 1/4
N
M1 MODE
E
M1 LIN
E
N
M1 DISP*
N
E
M1 EGU
M1SQ<1C
E
N
LIN PCT
N
(continued on next figure)
60
*Linear Mode only.
N
M1SQ<4L
E
N
DAMP 32
E
5. Configuration
MI IDP25-T/IDP50-T – August 2016
Figure 38. Configuration Structure Diagram (2 of 3)
(continued from previous figure)
E
M1 EGU
N
N
gal/s
N
gal/m
E
E
E
N
N
inH20
inHg
E
E
N
M1EFAC
**
E
N
E
N
Display Digit
E
E
atm
E
Increment Digit
*
N
Display Digit
Increment Digit
E
N
**
RERANGE
%flow
N
or
M1EOFF
N
gal/h
*
E
M1 URV
N
E
N
Display Digit
**
E
Increment Digit
*
N
M1 LRV
N
M2 MODE
E
E
**
N
Display Digit
E
Increment Digit
*
Similar to M1 MODE
N
M2 EGU
E
Similar to M1 EGU
N
DATE
*If character is not the last position on the display line, advances to next character.
**If character is the last position on the display line, advances to next menu item.
(continued on next figure)
61
MI IDP25-T/IDP50-T – August 2016
5. Configuration
Figure 39. Configuration Structure Diagram (3 of 3)
(continued from previous figure)
N
E
DISPLAY
N
SHOW M1
N
SHOW M2
TOGGLE
E
E
E
CALDATE
N
E
N
Increment Day
Display Day
E
N
Display Month
N
Increment Month
E
N
Increment Year
Display Year
E
E
ENA PWD
CFGONLY
NO PWDS
N
E
E
E
CFG PWD
N or E
**
Display
Character
E
*
N
CFG+CAL
CAL PWD
N or E
Increment
Character
N
Increment
Character
Display N
Character
E
**
*
Increment
Character
Display
Character
E
CFG PWD
N or E
SET GDB
N
CANCEL
E
CLEAR DB
N
E
Performs Reset
and returns
to ONLINE
Discard all changes, return to ONLINE
N
SAVE
N
62
Save database changes, return to ONLINE
*If character is not the last position on the display line, advances to next character.
**If character is the last position on the display line, advances to next menu item.
5. Configuration
MI IDP25-T/IDP50-T – August 2016
Commentary on Configuration Structure Diagram
In general, use the Next button to select your item and the Enter button to specify your
selection.
POLLADR:
To configure the transmitter poll address, press Enter. Use the Next button to select an
address of 0 through 15, then press Enter.
EX ZERO:
The External Zero feature allows the optional external zero pushbutton to be disabled for
additional security. To configure this feature, go to EX ZERO with the Next button and press
Enter. Use the Next button to select EXZ DIS or EXZ ENA and press Enter.
S2 FAIL:
To configure the temperature sensor failure strategy, go to S2 FAIL with the Next button and
press Enter. Use the Next button to select S2 FATAL (to have the output go to that
configured in OUTFAIL) or S2 NOFTL (to continue operation with a temperature sensor
failure) and press Enter. This parameter has no effect if POLLADR is configured any number
from 1 through 15 and is bypassed if M1 MODE or M2 MODE is configured as square root.
OUT DIR:
To configure the Output Direction, go to OUT DIR with the Next button and press Enter.
Use the Next button to select OUT FWD (4 - 20 mA) or OUT REV (20 - 4 mA) and press
Enter. This parameter has no effect if POLLADR is configured any number from 1 through 15
and is bypassed if M1 MODE or M2 MODE is configured as square root.
OUTFAIL:
The Outfail feature provides high or low output with certain malfunctions. To configure the
fail mode output, go to OUTFAIL with the Next button and press Enter. Use the Next
button to select FAIL LO or FAIL HI and press Enter. This parameter has no effect if
POLLADR is configured any number from 1 through 15.
OFFL MA:
The Off-line mA feature enables you to set the output to a specified value or to the last value
if the transmitter goes off-line. To configure the off-line output, go to OFFL MA with the Next
button and press Enter. Use the Next button to select LAST MA or USER MA and press
Enter. If you selected USER MA, press Enter again at the display of digits. Then use the Next
button to step through the library of digits to select the desired first digit, then press Enter.
Your selection is entered and the second character flashes. Repeat this procedure until you
have entered the last digit. Then use the Next button to move the decimal point to its desired
location and press Enter. The display advances to the next menu item.
DAMPING:
To configure additional damping, go to DAMPING with the Next button and press Enter. Use
the NEXT button to select NO DAMP, DAMP 1/4, DAMP 1/2, DAMP 1, DAMP 2, DAMP 4, DAMP
8, DAMP 16, or DAMP 32 and press Enter.
63
MI IDP25-T/IDP50-T – August 2016
5. Configuration
M1 MODE:
To configure the mode of the primary output, go to M1 MODE with the Next button and press
Enter. Use the Next button to select M1 LIN (linear), M1SQ<1C (square root with cutoff
below 1% of calibrated pressure range), or M1SQ<4L (square root with linear below 4% of
calibrated pressure range) and press Enter. You cannot configure this parameter as square
root if OUT DIR was configured as OUT REV.
M1 DISP:
To configure the optional local indicator for percent in linear mode, go to M1 DISP with the
Next button and press Enter. Use the Next button to select M1 EGU or LIN PCT and press
Enter. LIN PCT only provides percent readings on the local display. M1EGU is used for remote
communication of Measurement #1, even if LIN PCT is selected. This parameter has no effect
if POLLADR is configured any number from 1 through 15.
M1 EGU:
To configure pressure or flow engineering units for your display and transmission, go to
M1 EGU with the Next button and press Enter. If M1 MODE is configured as M1 LIN, you are
asked to specify one of the following pressure labels: inH2O, inHg, ftH2O, mmH2O, mmHg, psi,
bar, mbar, g/cm2, kg/cm2, Pa, kPa, MPa, torr, atm, hW60 (inH2O at 60°F), or mH2O. Your
transmitter then automatically adjusts M1EFAC (engineering factor), M1 URV (upper range
value), and M1 LRV (lower range value). M1EOFF is set to zero.
If M1 MODE is configured as M1 SQ<1C or M1SQ<4L, you are asked to specify one of the
following flow labels: %flow, gal/s, gal/m, gal/h, gal/d, Mgal/d, ft3/s, ft3/m, ft3/h,
ft3/d, Igal/s, Igal/m, Igal/h, Igal/d, l/s, l/m, l/h, Ml/d, m3/s, m3/m, m3/h, m3/d,
bbl/s, bbl/m, bbl/h, bbl/d, t/h, lb/h, kg/h, Nm3/h (normal m3/h) Sm3/h (standard
m3/h), Am3/h (actual m3/h) or MMSCFD (million scfd). If you have configured flow units
before, your transmitter then automatically adjusts M1EFAC (engineering factor). If you have
not, you must manually adjust M1EFAC as follows:
M1EFAC:
This parameter is used to input the numerical relationship between the measured span in
pressure units and the displayed (and transmitted) span in flow units. It is the displayed URV
in flow units (which is also the span in flow units since flow ranges must be zero-based).
Example:
For a 200 inH2O transmitter with a measured range of 0 to 100 inH2O and displayed range
of 0 to 500 gal/m, M1EFAC = 500.
To edit the span in your configured flow units, press Enter at the prompt M1EFAC. Use the
procedure “Entering Numerical Values” on page 42 to edit this parameter.
RERANGE:
To adjust 100% and 0% range limits, go to RERANGE with the Next button and press Enter.
You can then adjust M1 URV and/or M1 LRV in the following two submenus.
64
5. Configuration
MI IDP25-T/IDP50-T – August 2016
NOTE
If M1 MODE is in a square root mode, regardless of engineering units selected, RERANGE
is automatically done in the following “default” pressure units:
• inH2O, if M2 MODE is a type of square root.
• M2 EGU units, if M2 MODE is linear.
The bottom line of the display indicates “default units” during RERANGE. Following
RERANGE, the display automatically switches back to the configured engineering units.
M1 URV:
To edit the upper range value, press Enter at the prompt M1 URV. Use the procedure
“Entering Numerical Values” on page 42 to edit this parameter.
M1 LRV:
Similar to M1 URV immediately above.
M1 LRV is bypassed if M1 MODE is configured as square root since M1 LRV must be zero.
M2 MODE:
M2 is a secondary measurement that is read by the HART Communicator and can be
displayed on the optional display. You might use this feature to display M1 in flow units and
M2 in comparable pressure units. To configure this parameter, go to M2 MODE with the Next
button and press Enter. Use the next button to select M2 LIN (linear), M2SQ<1C (square root
with cutoff below 1% of calibrated pressure range), M2SQ<4L (square root with linear below
4% of calibrated pressure range), and press Enter.
M2 EGU:
Similar to M1 EGU.
DISPLAY:
To display M1, M2, or to toggle between M1 and M2, go to DISPLAY with the Next button
and press Enter. Use the Next button to select SHOW M1, SHOW M2, or TOGGLE and press
Enter.
CALDATE:
This is not a required entry but can be used for record-keeping or plant maintenance
purposes. To edit the calibration date, go to CALDATE with the Next button and press Enter.
You then can change the day, month, and year. The display shows the last date with the day
flashing. Use the Next button to step through the library of digits to select the desired day,
then press Enter. Repeat this process for the month and year.
ENA PWD:
To enable or disable the password feature, go to ENA PWD with the Next button and press
Enter. Use the Next button to select NO PWDS (password not required for either calibration
or configuration), CFGONLY (password required to configure but not to calibrate), or CFG+CAL
(passwords required to both configure and calibrate) and press Enter.
65
MI IDP25-T/IDP50-T – August 2016
5. Configuration
If you selected CFG ONLY, the display changes to CFG PWD. Press either the Next or Enter
button. Use the Next button to step through the library of characters to select the desired first
character, then press Enter. Your selection is entered and the second character flashes. Repeat
this procedure until you have created your password. If the password has less than six
characters, use blanks for the remaining spaces. When you have configured the sixth space,
the display advances to the next menu item.
If you selected CFG+CAL, the display changes to CAL PWD. To create the Calibration password,
press either the Next or Enter button. Use the Next button to step through the library of
characters to select the desired first character, then press Enter. Your selection is entered and
the second character flashes. Repeat this procedure until you have created your password. If
the password has less than six characters, use blanks for the remaining spaces. When you have
configured the sixth space, the display advances to CFG PWD. Use the same procedure to create
the configuration password.
NOTE
In normal operation, the CAL PWD allows access to only calibration mode. The
CFG PWD allows access to both configuration and calibration.
!
CAUTION
Record your new password before saving changes to the database.
SET GDB:
If your transmitter database becomes corrupted and you receive an INITERR message upon
startup, this function enables you to rewrite all calibration and configuration values with
default values.
!
66
CAUTION
Any calibration and configuration values that you have entered will be lost. Therefore,
SET GDB should not be selected if your transmitter is functioning normally.
5. Configuration
MI IDP25-T/IDP50-T – August 2016
Character Lists
Table 9. Alphanumeric Character List
Character List (a)
@
, (comma)
A-Z (uppercase)
[
\
]
^
_ (underscore)
space
!
“
#
$
%
&
‘
(
)
*
+
.
/
0-9
:
;
<
>
=
?
a. List only applies to HART Communicator
not to optional local display.
Table 10. Numeric Character List
Character List
–
. (decimal point)
0 through 9
67
MI IDP25-T/IDP50-T – August 2016
5. Configuration
Error Messages
Table 11. Configuration Error Messages
Parameter
Condition Tested
Error Message
User Action
Password
Protection
Password
BAD PWD
Bad password entered, use another.
Write
Protection
Write Protection Enabled
REJECT
Displays when user attempts an action that is write
protected.
M1 LRV ≠ 0
LRVnot0
Square root mode with nonzero LRV is not valid.
Change M1 LRV to 0.
M1 URV < 0
URV<LRV
Square root mode with negative URV is not valid.
Change M1 URV to positive value.
OUT DIR is OUT REV
URV<LRV
M1EFAC < 0
-M1EFAC
M1 MODE
(being
changed to
square root)
Square root mode with URV < LRV is not valid. Change
M1 LRV to 0 and M1 URV to positive value.
Negative M1 EFAC is not valid. Change M1 EFAC to
positive value.
M2EFAC < 0
-M2EFAC
Negative M2 EFAC is not valid. Change M2
positive value.
M1EFAC = 0
0M1EFAC
M2EFAC = 0
0M2EFAC
M1
M1
M2
M2
M1EOFF ≠ 0 or M2EOFF BADEOFF
≠0
M1EFAC
M1 URV
M1 LRV
68
EFAC to
EFAC = 0 is not valid. Change
EFAC to positive value.
EFAC = 0 is not valid. Change
EFAC to positive value.
Square root mode with nonzero
M1 EOFF and M2 EOFF is not valid. Change M1
EOFF and M2 EOFF to 0.
M1EFAC < 0
-M1EFAC
Negative M1 EFAC is not valid. Change M1
positive value.
M1EFAC = 0
0M1EFAC
M1 EFAC = 0 is not valid. Change
M1 EFAC to positive value.
EFAC to
M1URV > max pressure in URV>FMX
EGU
Entered pressure is greater than maximum rated
pressure of transmitter. Check entry. Verify EGUs.
M1URV < min pressure in URV<FMN
EGU
Entered pressure is less than minimum rated pressure
of transmitter. Check entry. Verify EGUs.
M1 URV = M1 LRV
LRV=URV
Cannot set span to 0. Check entry. Check M1
M1 turndown exceeds
limit
BADTDWN
Check entry. Check M1
URV <0 with M1 or M2
SqRt
URV<LRV
Square root mode with nonzero LRV is not valid.
Change M1 LRV to 0.
LRV.
LRV.
M1LRV > max pressure in LRV>FMX
EGU
Entered pressure is greater than maximum rated
pressure of transmitter. Check entry. Verify EGUs.
M1LRV < min pressure in LRV<FMN
EGU
Entered pressure is less than minimum rated pressure
of transmitter. Check entry. Verify EGUs.
M1 URV = M1 LRV
LRV=URV
Cannot set span to 0. Check entry. Check M1
M1 turndown exceeds
limit
BADTDWN
Check entry. Check M1
URV.
URV.
5. Configuration
MI IDP25-T/IDP50-T – August 2016
Table 11. Configuration Error Messages (Continued)
Parameter
M2 MODE
(being
changed to
square root)
Condition Tested
Error Message
User Action
M1 LRV ≠ 0
LRVnot0
Square root mode with nonzero LRV is not valid.
Change M1 LRV to 0.
M1 URV < 0
URV<LRV
Square root mode with negative URV is not valid.
Change M1 URV to positive value.
OUT DIR is OUT REV
URV<LRV
M1EFAC < 0
-M1EFAC
Square root mode with URV < LRV is not valid. Change
M1 LRV to 0 and M1 URV to positive value.
Negative M1 EFAC is not valid. Change M1 EFAC to
positive value.
M2EFAC < 0
-M2EFAC
Negative M2 EFAC is not valid. Change M2
positive value.
M1EFAC = 0
0M1EFAC
M2EFAC = 0
0M2EFAC
M1
M1
M2
M2
M1EOFF ≠ 0 or M2EOFF BADEOFF
≠0
M2EFAC
EFAC to
EFAC = 0 is not valid. Change
EFAC to positive value.
EFAC = 0 is not valid. Change
EFAC to positive value.
Square root mode with nonzero
M1 EOFF and M2 EOFF is not valid. Change M1
EOFF and M2 EOFF to 0.
M2EFAC < 0
-M2EFAC
Negative M2 EFAC is not valid. Change M2
positive value.
M2EFAC = 0
0M2EFAC
M2 EFAC = 0 is not valid. Change
M2 EFAC to positive value.
EFAC to
69
MI IDP25-T/IDP50-T – August 2016
70
5. Configuration
6. 2001Maintenance
!
DANGER
For nonintrinsically safe installations, to prevent a potential explosion in a Division 1
hazardous area, de-energize transmitters before you remove threaded housing covers.
Failure to comply with this warning could result in an explosion resulting in severe
injury or death.
Error Messages
For error messages displayed on the HART Communicator refer to MI 020-366.
Parts Replacement
Parts replacement is generally limited to the electronics module assembly, housing assembly,
sensor assembly, terminal block assembly, cover O-rings, and optional display. For part numbers
relating to the transmitter and its options, see the following parts lists:
IDP25 Differential Pressure Transmitter:
PL 009-013
IDP50 Differential Pressure Transmitter:
PL 009-014
Replacing the Terminal Block Assembly
1. Turn off transmitter power source.
2. Remove the Field Terminals and the Electronics compartment covers by rotating them
counterclockwise. Screw in cover lock if applicable.
3. Remove the digital display (if applicable) as follows: grasp the two tabs on the display
and rotate it about 10° in a counterclockwise direction.
4. Remove the electronics module from the housing by loosening the two captive screws
that secure it to the housing. Then pull the module out of the housing far enough to
gain access to the cable connectors on the rear of the module.
5. Remove the four socket head screws securing the terminal block.
6. Disconnect the terminal block cable connector from the electronics module.
7. Remove the terminal block and the gasket under it.
8. Connect the new terminal block cable connector to the electronics module.
9. Install the new terminal block and new gasket and reinstall the four screws to
0.67 N⋅m (6 in⋅lb) in several even increments.
10. Reinstall the electronics module (and digital display if applicable).
71
MI IDP25-T/IDP50-T – August 2016
6. 2001Maintenance
11. Reinstall the covers onto the housing by rotating them clockwise to seat the O-ring
into the housing and then continue to hand tighten until the each cover contacts the
housing metal-to-metal. If cover locks are present, lock the cover per the procedure
described in “Cover Locks” on page 33.
12. Turn on transmitter power source.
Replacing the Electronics Module Assembly
To replace the electronics module assembly, refer to Figure 40 and proceed as follows:
1. Turn off transmitter power source.
2. Remove the electronics compartment cover by rotating it counterclockwise. Screw in
cover lock if applicable.
3. Remove the digital display (if applicable) as follows: grasp the two tabs on the display
and rotate it about 10° in a counterclockwise direction. Pull out the display and
disconnect its cable.
4. Remove the electronics module from the housing by loosening the two captive screws
that secure it to the housing. Then pull the module out of the housing far enough to
gain access to the cable connectors on the rear of the module.
!
CAUTION
The electronics module is “one assembly” at this point and is electrically and
mechanically connected to topworks with a flexible ribbon signal cable, a 2-wire
power cable, and in some cases, a cable for an external zero pushbutton. Do not
exceed the slack available in these cables when removing the assembled module.
5. Unplug all cable connectors from the rear of the electronics module and place the
module on a clean surface.
6. Predetermine connector orientation, then insert the cable connectors into the
replacement module. Replace the module in the housing using care not to pinch the
cables between the module and the housing. Tighten the two screws that secure the
module to the housing.
7. Connect the cable from the digital display to the electronics module. Ensure that the
O-ring is fully seated in the display housing. Then, holding the digital display by the
tabs at the sides of the display, insert it into the housing. Secure the display to the
housing by aligning the tabs on the sides of the assembly and rotating it about 10° in
a clockwise direction.
8. Reinstall the cover onto the housing by rotating it clockwise to seat the O-ring into
the housing and then continue to hand tighten until the cover contacts the housing
metal-to-metal. If cover locks are present, lock the cover per the procedure described
in “Cover Locks” on page 33.
9. Turn on transmitter power source.
The module replacement procedure is now complete.
72
6. 2001Maintenance
MI IDP25-T/IDP50-T – August 2016
Figure 40. Replacing the Electronics Module Assembly and Display
HOUSING ASSEMBLY
TO REMOVE ELECTRONICS
MODULE, REMOVE TWO
CROSS RECESS SCREWS.
TO REMOVE DISPLAY FROM
ELECTRONICS MODULE,
TWIST DISPLAY COUNTERCLOCKWISE TO RELEASE
TABS AND PULL OUT, THEN
UNPLUG CABLE CONNECTOR.
Removing and Reinstalling a Housing Assembly
To remove and reinstall a housing assembly, refer to Figure 40 and proceed as follows:
1. Remove the electronics module per Steps 1 through 5 in the previous procedure.
2. If your housing has an anti-rotation screw, remove the red lacquer from the screw
recess. Turn the screw three full turns counterclockwise.
3. If your housing has a retention clip, remove the red lacquer from the screw recess.
Remove the screw completely, and slide the clip off the housing. Save the clip and
screw for future use,
4. Remove the housing by rotating it counterclockwise (when viewed from the top). Use
caution to avoid damaging the sensor cable.
5. Inspect the sensor O-ring for damage. If the O-ring is damaged, replace it with the
appropriate O-ring. (See parts list for your transmitter). Lubricate the O-ring with
silicone lubricant (Foxboro Part Number 0048130 or equivalent). Verify that the
O-ring is situated in the groove of the neck.
!
WARNING
Failure to reuse or install the proper O-ring for a CSA labeled product violates
ANSI / ISA 12.27.01.
6. Feed the sensor cable through the housing neck into the electronics compartment.
7. Screw the housing onto the sensor neck until it bottoms. Do not over tighten. Be
careful not to damage the sensor cable or dislodge the neck O-ring.
73
MI IDP25-T/IDP50-T – August 2016
6. 2001Maintenance
8. If your housing has an anti-rotation screw, engage the screw until it touches the sensor
neck and back it off 1/8th turn. It is important that the screw is not touching the
sensor. Fill the screw recess with red lacquer (Foxboro Part Number X0180GS or
equivalent). the housing may then be rotated up to one full turn counterclockwise for
optimum access.
9. If your housing has a retention clip, insert the clip over the boss in the housing neck so
that the hole in the clip is aligned with the hole in the boss. Install the screw but do
not tighten. Rotate the housing up to one full turn counterclockwise for optimum
access. Tighten the retention clip screw and fill the screw recess with red lacquer
(Foxboro Part Number X0180GS or equivalent). The housing can still be rotated for
optimum access.
10. Reinstall the electronics module per Steps 6 through 9 in the previous procedure.
Adding the Optional Display
To add the optional display, refer to Figure 40 and proceed as follows:
1. Turn off transmitter power source.
2. Remove the electronics compartment cover by rotating it counterclockwise. Screw in
cover lock if applicable.
3. Plug the display into the receptacle at the top of the electronics assembly.
4. Ensure that the O-ring is seated in its groove in the display housing. Then insert the
display into the electronics compartment by grasping the two tabs on the display and
rotating it about 10° in a clockwise direction.
5. Install the new cover (with a window) onto the housing by rotating it clockwise to seat
the O-ring into the housing and then continue to hand tighten until the cover
contacts the housing metal-to-metal. If cover locks are present, lock the cover per the
procedure described in “Cover Locks” on page 33.
6. Turn on transmitter power source.
Replacing the Sensor Assembly
To replace the sensor assembly, refer to Figures 41 and 42 and proceed as follows:
1. Remove the electronics module as described above.
2. Remove the housing as described above.
3. Remove the process covers from sensor by removing two hex head bolts.
4. Replace the gaskets in the process covers.
5. Install the process covers and housing on the new sensor. Torque cover bolts to 100
N⋅m (75 lb⋅ft) in several even increments. Torque values are 68 N⋅m (50 lb⋅ft) when
316 ss bolts are specified; 75 N⋅m (55 lb⋅ft) when B7M bolts are specified.
6. Reinstall electronics module.
74
6. 2001Maintenance
MI IDP25-T/IDP50-T – August 2016
7. Pressure test the sensor and process cover assembly by applying a hydrostatic pressure
of 150% of the maximum static and overrange pressure rating to both sides of the
process cover/sensor assembly simultaneously through the process connections. Hold
pressure for one minute. There should be no leakage of the test fluid through the
gaskets. If leakage occurs, retighten the cover bolts per Step 5 (or replace the gaskets)
and retest.
!
CAUTION
Perform hydrostatic test with a liquid and follow proper hydrostatic test procedures.
Figure 41. Replacing the Sensor Assembly
PROCESS COVER
SENSOR
PROCESS COVER
GASKETS
HEX HEAD BOLTS
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MI IDP25-T/IDP50-T – August 2016
6. 2001Maintenance
Figure 42. Replacing the Sensor Assembly (pvdf Inserts)
BOTTOMWORKS WITH
PROCESS CONNECTOR
CODE 7
pvdf INSERTS
PROCESS CONNECTIONS
Rotating Process Covers for Venting
As received, your IASPT Transmitter provides sensor cavity draining without the need for side
drain connections, regardless of whether the transmitter is mounted vertically or horizontally.
Sensor cavity venting is provided by mounting the transmitter horizontally or with the optional
vent screw (-V). However, if you did not specify this option, you can still achieve venting (instead
of draining) with vertical mounting by rotating the process covers. See Figure 43.
Figure 43. Sensor Cavity Venting and Draining
LIQUID PROCESS FLOW
STANDARD
ORIENTATION
PROCESS COVERS
CONDENSED
LIQUID FREELY
DRAINS
GASEOUS PROCESS FLOW
GAS FREELY VENTS
INVERTED
PROCESS
COVERS
To rotate the process covers, refer to Figure 41 and proceed as follows:
1. Turn off the transmitter power source and remove the transmitter from the process.
2. Remove the process covers from sensor by removing two hex head bolts.
3. Replace gaskets in process covers.
4. Rotate the process covers so that the longer tab is at the bottom.
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6. 2001Maintenance
MI IDP25-T/IDP50-T – August 2016
5. Reinstall process covers and bolts. Torque cover bolts to 100 N⋅m (75 lb⋅ft) in several
even increments. Torque values are 68 N⋅m (50 lb⋅ft) when 316 ss bolts are specified;
75 N⋅m (55 lb⋅ft) when B7M bolts are specified.
6. Pressure test the sensor and process cover assembly by applying a hydrostatic pressure
of 150% of the maximum static and overrange pressure (see “Standard Specifications”
on page 12) to both sides of the process cover/sensor assembly simultaneously through
the process connections. Hold pressure for one minute. There should be no leakage of
the test fluid through the gaskets. If leakage occurs, retighten the cover bolts per Step
4 or replace the gaskets and retest.
!
CAUTION
Perform hydrostatic test with a liquid and follow proper hydrostatic test procedures.
77
MI IDP25-T/IDP50-T – August 2016
ISSUE DATES
Dec 2001
OCT 2003
APR 2004
FEB 2005
JUN 2005
FEB 2006
JUN 2007
JUL 2008
APR 2009
APR 2010
MAR 2015
AUG 2016
Vertical lines to the right of text or illustrations indicate areas changed at last issue date.
Invensys Systems, Inc.
38 Neponset Avenue
Foxboro, MA 02035
United States of America
http://www.schneider-electric.com
Global Customer Support
Inside U.S.: 1-866-746-6477
Outside U.S.: 1-508-549-2424
Website: http://support.ips.invensys.com
Copyright 2001-2016 Invensys Systems, Inc.
All rights reserved.
Invensys, Foxboro, and I/A Series are trademarks of
Invensys Limited, its subsidiaries, and affiliates. All other
trademarks are the property of their respective owners.
Invensys is now part of Schneider Electric.
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