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User’s
Manual
Model SC202G [Style: S3], SC202S [Style: S3]
2-wire Conductivity or
Resistivity Transmitter
IM 12D08B02-01E
IM 12D08B02-01E
8th Edition
TABLE OF CONTENTS
PREFACE
1. Introduction And General Description ............................................................. 1-1
1-1. Instrument check ............................................................................................ 1-1
1-2. Application ...................................................................................................... 1-3
2. general Specifications ....................................................................................... 2-1
2-1. Specifications .................................................................................................. 2-1
2-2. Operating specifications ................................................................................. 2-2
2-3. Model and suffix codes ................................................................................... 2-5
2-4. Control Drawing SC202S mA HART® Specification (IECEx) ......................... 2-6
2-6. Control Drawing SC202S mA HART® Specification ............................................
(FM Intrinsically safe design). .......................................................................... 2-8
2-8. Control Drawing of SC202S mA HART® Specification (CSA) ...................... 2-10
2-9. Control Drawing of SC202S FF/PB Specification (IECEx) ............................2-11
2-10. Control Drawing of SC202S FF/PB Specification (ATEX) .......................... 2-12
2-11. Control Drawing of SC202S FF/PB Specification ..............................................
(FM Intrinsically safe Entity) ........................................................................... 2-13
2-12. Control Drawing of SC202S FF/PB Specification ..............................................
(FM Intrinsically safe FISCO) ......................................................................... 2-15
2-13. Control Drawing of SC202S FF/PB Specification ..............................................
(FM Non-incendive Entity) ............................................................................. 2-17
2-14. Control Drawing of SC202S FF/PB Specification ..............................................
(FM Non-incendive FNICO) ........................................................................... 2-18
2-15. Control Drawing of SC202S FF/PB Specification (CSA) ............................ 2-19
3. Installation And Wiring....................................................................................... 3-1
3-1. Installation and dimensions ............................................................................ 3-1
3-1-1. Installation site .................................................................................................................3-1
3-1-2. Mounting methods ...........................................................................................................3-1
3-2. Preparation ..................................................................................................... 3-3
3-2-1. Cables, terminals and glands ..........................................................................................3-3
3-3. Wiring of sensors ............................................................................................ 3-4
3-3-1. General precautions ........................................................................................................3-4
3-3-2. Additional precautions for installations in hazardous areas - Intrinsic safe ....................3-4
3-3-3. Installation in: Hazardous Area-Non-Incendive ..............................................................3-5
3-4. Wiring of power supply ................................................................................... 3-5
3-4-1. General precautions ........................................................................................................3-5
3-4-2. Connection of the power supply ......................................................................................3-5
3-4-3. Switching the instrument on ............................................................................................3-5
3-5. Sensor wiring .................................................................................................. 3-6
3-6. Other sensor systems ..................................................................................... 3-7
3-6-1. Sensor cable connections using junction box (BA10) and extension cable (WF10) .......3-7
IM 12D08B02-01E
8th Edition: Oct. 2009(YK)
All Rights Reserved, Copyright © 2001, Yokogawa Electric Corporation
IM 12D08B02-01E
7-1. Periodic maintenance for the EXA 202 transmitter ......................................... 7-1
9-2.What is conductivity measurement according to USP? ................................... 9-1
IM 12D08B02-01E
11. Appendix 1 ....................................................................................................... 1-1
11-1. User setting for non-linear output table (code 31and 35) .............................. 1-1
11-2. User entered matrix data (code 23 to 28) ..................................................... 1-1
11-3. Matrix data table (user selectable in code 22) .............................................. 1-2
11-4. Sensor Selection ........................................................................................... 1-3
11-4-1. General ..........................................................................................................................1-3
11-4-2. Sensor selection ............................................................................................................1-3
11-4-3. Selecting a temperature sensor.....................................................................................1-3
11-5. Setup for other functions ............................................................................... 1-3
11-6. User setting table .......................................................................................... 1-4
11-7. Error codes ................................................................................................... 1-6
11-8. Device Description (DD) menu structure ...................................................... 1-7
12. APPENDIX 2 ...................................................................................................... 2-1
12-1. Preface ....................................................................................................... 2-1
12-2. Wiring diagrams ............................................................................................ 2-2
1. Example of Non-Explosionproof System ..............................................................................2-2
2. Example of Intrinsically Safe Explosionproof System ...........................................................2-2
12-3. Sensor wiring ................................................................................................ 2-4
12-4. Supplement of parameter setting .................................................................. 2-5
12-4-1. Set cell constant (service code 03) ...............................................................................2-5
12-4-2. Temperature sensor (service code 10) .........................................................................2-5
12-4-3. Automatic return (service code 50) ...............................................................................2-5
12-4-4. Error setting (service code 53) ......................................................................................2-6
12-4-5. E5 and E6 setting (service code 54) .............................................................................2-6
12-4-6. Communication with PH201G (style B) distributor (service code 60) ...........................2-6
13. Appendix 3 QUALITY INSPECTION ................................................................. 3-1
13-1. SC202G 2-Wire Conductivity Transmitter ..................................................... 3-1
13-2. SC202S 2-Wire Conductivity Transmitter ..................................................... 3-5
13-3. SC202G, SC202S 2-Wire Conductivity Transmitter ..........................................
(Fieldbus Communication) ............................................................................... 3-9
13-4. SC202G, SC202S 2-Wire Conductivity Transmitter ..........................................
(Profibus Communication) ............................................................................. 3-13
Customer Maintenance Parts List SC202G (Style : S3) ........CMPL 12D08B02-03E
Customer Maintenance Parts List SC202S (Style : S3).........CMPL 12D08B02-23E
Revision Record ..........................................................................................................i
IM 12D08B02-01E
PREFACE
DANGER
Electric discharge
The EXA analyzer contains devices that can be damaged by electrostatic discharge. When servicing this equipment, please observe proper procedures to prevent such damage. Replacement components should be shipped in conductive packaging. Repair work should be done at grounded workstations using grounded soldering irons and wrist straps to avoid electrostatic discharge.
Installation and wiring
The EXA analyzer should only be used with equipment that meets the relevant international and regional standards. Yokogawa accepts no responsibility for the misuse of this unit.
Notice
• This manual should be passed on to the end user.
• The contents of this manual are subject to change without prior notice.
• The contents of this manual shall not be reproduced or copied, in part or in whole, without permission.
• This manual explains the functions contained in this product, but does not warrant that they are suitable the particular purpose of the user.
• Every effort has been made to ensure accuracy in the preparation of this manual.
However, when you realize mistaken expressions or omissions, please contact the nearest Yokogawa Electric representative or sales office.
• This manual does not cover the special specifications. This manual may be left unchanged on any change of specification, construction The instrument is packed carefully with shock absorbing materials, nevertheless, the instrument may be damaged or broken if subjected to strong shock, such as if the instrument is dropped. Handle with care.
Although the instrument has a weatherproof construction, the transmitter can be harmed if it becomes submerged in water or becomes excessively wet.
Do not use an abrasive material or solvent when cleaning the instrument.
Do not modify the SC202 transmitter.
WARNING
Electrostatic charge may cause an explosion hazard. Avoid any actions that cause the generation of electrostatic charge, e.g., rubbing with a dry cloth.
Warning label
or parts when the change does not affect the functions or performance of the product.
• If the product is not used in a manner specified in this manual, the safety of this product may be impaired.
Yokogawa is not responsible for damage to the instrument, poor performance of the instrument or losses resulting from such, if the problems are caused by:
• Improper operation by the user.
• Use of the instrument in improper applications
• Use of the instrument in an improper environment or improper utility program
• Repair or modification of the related instrument by an engineer not authorized by Yokogawa.
Safety and Modification Precautions
• Follow the safety precautions in this manual when using the product to ensure protection and safety of the human body, the product and the system containing the product.
Because the enclosure of the Dissolved Oxygen transmitter Type SC202S-A, -P, -F are made of aluminium, if it is mounted in an area where the use of category 1 G Zone 0 apparatus is required, it must be installed such, that, even in the event of rare incidents, ignition sources due to impact and friction sparks are excluded.
IM 12D08B02-01E
The following safety symbols are used on the product as well as in this manual.
DANGER
This symbol indicates that an operator must follow the instructions laid out in this manual in order to avoid the risks, for the human body, of injury, electric shock, or fatalities. The manual describes what special care the operator must take to avoid such risks.
Warranty and service
Yokogawa products and parts are guaranteed free from defects in workmanship and material under normal use and service for a period of (typically) 12 months from the date of shipment from the manufacturer. Individual sales organizations can deviate from the typical warranty period, and the conditions of sale relating to the original purchase order should be consulted. Damage caused by wear and tear, inadequate maintenance, corrosion, or by the effects of chemical processes are excluded from this warranty coverage.
This symbol indicates that the operator must refer to the instructions in this manual in order to prevent the instrument (hardware) or software from being damaged, or a system failure from occurring.
This symbol gives information essential for understanding the operations and functions.
This symbol indicates Protective Ground
Terminal
In the event of warranty claim, the defective goods should be sent (freight paid) to the service department of the relevant sales organization for repair or replacement (at Yokogawa discretion). The following information must be included in the letter accompanying the returned goods:
• Part number, model code and serial number
• Original purchase order and date
• Length of time in service and a description of the process
• Description of the fault, and the circumstances of failure
• Process/environmental conditions that may be related to the installation failure of the device
• A statement whether warranty or non-warranty service is requested
• Complete shipping and billing instructions for return of material, plus the name and phone number of a contact person who can be reached for further information.
This symbol indicates Function Ground Terminal
(Do not use this terminal as the protective ground terminal.)
This symbol indicates Alternating current.
Returned goods that have been in contact with process fluids must be decontaminated/disinfected before shipment. Goods should carry a certificate to this effect, for the health and safety of our employees. Material safety data sheets should also be included for all components of the processes to which the equipment has been exposed.
This symbol indicates Direct current.
IM 12D08B02-01E
ATEX Documentation
This procedure is only applicable to the countries in European Union.
GB
All instruction manuals for ATEX Ex related products are available in English, German and French.
Should you require Ex related instructions in your local language, you are to contact your nearest
Yokogawa office or representative.
DK
Alle brugervejledninger for produkter relateret til ATEX Ex er tilgængelige på engelsk, tysk og fransk. Skulle De ønske yderligere oplysninger om håndtering af Ex produkter på eget sprog, kan
De rette henvendelse herom til den nærmeste
Yokogawa afdeling eller forhandler.
I
Tutti i manuali operativi di prodotti ATEX contrassegnati con Ex sono disponibili in inglese, tedesco e francese. Se si desidera ricevere i manuali operativi di prodotti Ex in lingua locale, mettersi in contatto con l’ufficio Yokogawa più vicino o con un rappresentante.
E
Todos los manuales de instrucciones para los productos antiexplosivos de ATEX están disponibles en inglés, alemán y francés. Si desea solicitar las instrucciones de estos artículos antiexplosivos en su idioma local, deberá ponerse en contacto con la oficina o el representante de Yokogawa más cercano.
NL
Alle handleidingen voor producten die te maken hebben met ATEX explosiebeveiliging (Ex) zijn verkrijgbaar in het Engels, Duits en Frans.
Neem, indien u aanwijzingen op het gebied van explosiebeveiliging nodig hebt in uw eigen taal, contact op met de dichtstbijzijnde vestiging van
Yokogawa of met een vertegenwoordiger.
SF
Kaikkien ATEX Ex -tyyppisten tuotteiden käyttöhjeet ovat saatavilla englannin-, saksan- ja ranskankielisinä. Mikäli tarvitsette Ex -tyyppisten tuotteiden ohjeita omalla paikallisella kielellännne, ottakaa yhteyttä lähimpään Yokogawa-toimistoon tai -edustajaan.
P
Todos os manuais de instruções referentes aos produtos Ex da ATEX estão disponíveis em Inglês,
Alemão e Francês. Se necessitar de instruções na sua língua relacionadas com produtos Ex, deverá entrar em contacto com a delegação mais próxima ou com um representante da Yokogawa.
F
Tous les manuels d’instruction des produits
ATEX Ex sont disponibles en langue anglaise, allemande et française. Si vous nécessitez des instructions relatives aux produits Ex dans votre langue, veuillez bien contacter votre représentant
Yokogawa le plus proche.
D
Alle Betriebsanleitungen für ATEX Ex bezogene
Produkte stehen in den Sprachen Englisch,
Deutsch und Französisch zur Verfügung. Sollten
Sie die Betriebsanleitungen für Ex-Produkte in
Ihrer Landessprache benötigen, setzen Sie sich bitte mit Ihrem örtlichen Yokogawa-Vertreter in
Verbindung.
S
Alla instruktionsböcker för ATEX Ex (explosionssäkra) produkter är tillgängliga på engelska, tyska och franska. Om Ni behöver instruktioner för dessa explosionssäkra produkter på annat språk, skall Ni kontakta närmaste Yokogawakontor eller representant.
GR
IM 12D08B02-01E
LT
LV
EST
SK
CZ
IM 12D08B02-01E
PL
SLO
H
BG
RO
M
CONFIGURATION CHECKLIST FOR SC202
Primary choices
Measurement
Range
Temperature unit
Sensor
Cell constant
Sensor type
Temperature compensator
Choices
Communication
Burn out
Temperature compensation
USP functionality
HOLD during maintenance
Calibration temperature
ZERO calibration
Diagnostics
Cell fouling alarm
Password protection
Output in Concentration units default alternatives
Conductivity Resistivity
0-1000 μ S/cm max. 1999 mS/cm
Celsius Fahrenheit
0.1 /cm
2-electrode
Pt1000 any value between 0.08 and 50
4- electrode
Ni100, Pt100, 8k55, Pb36 reference on page
5.8- 5.9
5.3
5.10- 5.11
5.8-5.9, 6.1- 6.3
5.8- 5.9
5.10-5.11
enabled inactive disable HART (R) , PH201*B
HI or LO output on fail
NaCl in water fixed T.C., matrix inactive Fail if USP limits are inactive exceeded
HOLD last value or fixed value inactive inactive adjustment +/- 15 °C adjustment +/-1 μ S/cm hard alarm on hard or soft choices all errors active inactive except E13 inactive password for different levels inactive linearization of output, w% on LCD
5.19
5.14- 5.15
5.12, 5.13, 5.5
9.1, 9.2, 5.17
5.17, 5.3- 5.4
5.11
5.9
5.17
5.9
5.17
5.14 - 5.17
menu
SC 01
“range”
SC 11
SC 03
SC 02
SC 10
SC 60- 62
SC 32
SC 20- 28; “temp”
SC 57
“hold”, SC 50
SC 12
SC 04
SC 53
SC 05
SC 52
SC 31/35/55
IM 12D08B02-01E
Introduction 1-1 mA
1. INTRODUCTION AND GENERAL DESCRIPTION
The Yokogawa EXA 202 is a 2-wire transmitter designed for industrial process monitoring, measurement and control applications. This user’s manual contains the information needed to install, set up, operate and maintain the unit correctly. This manual also includes a basic troubleshooting guide to answer typical user questions.
Yokogawa can not be responsible for the performance of the EXA analyzer if these instructions are not followed.
1-1. Instrument check
Upon delivery, unpack the instrument carefully and inspect it to ensure that it was not damaged during shipment. If damage is found, retain the original packing materials (including the outer box) and then immediately notify the carrier and the relevant Yokogawa sales office.
Make sure the model number on the textplate affixed to the side of the instrument agrees with your order. Examples of nameplates are shown below.
CONDUCTIVITY TRANSMITTER
MODEL
SUFFIX
SC202
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
24V DC
4 20mA DC
-10 55°C
Made in Japan Tokyo 180-8750 JAPAN
N200
II 1G
No. IECEx KEM 06.0053X
Zone 0 Ex ia IIC T4
Zone 0 Ex ia IIC T6 for Ta:40 °C
IP65
SEE CONTROL DRAWING
No. KEMA 06ATEX0220 X
Ex ia IIC T4
Ex ia IIC T6 for Ta:40 °C
SEE CONTROL DRAWING IP65
IS CL I, DIV 1, GP ABCD
AND AEx ia IIC
T4
Type 4X
Install per CONTROL DRAWING
IKE026-A10 P.5 to P.6
R
CL I, DIV 1, GP ABCD
Ex ia IIC T4
Ex ia IIC T6 for Ta:40 °C
SEE CONTROL DRAWING
LR81741 C
IP65 Type 3S
WARNING
Substitution of components may impair intrinsic safety
AVERTISSEMENT
La substitution de composants peut compromeltre la securite intrinseque.
SC202S-A
0344
II 3 G
No. IECEx KEM 06.0053X
Ex nA[nL] IIC T4
Ex nA[nL] IIC T6 for Ta:40 °C
IP65
SEE CONTROL DRAWING
No. KEMA 06ATEX0221
EEx nA[nL] IIC T4
EEx nA[nL] IIC T6 for Ta:40 °C
IP65
SEE CONTROL DRAWING
NI CL I, DIV 2, GP ABCD AND
CL I, ZN 2, GP IIC
T4
Type 4X
Install per CONTROL DRAWING
IKE026-A10 P.7 to P.8
LR81741 C
R
WARNING
Substitution of components may impair suitability for class I, Division 2.
Ex nA[nL] IIC
NI CL I, DIV 2, GP ABCD
T4
T6 for Ta:40 °C
IP65 Type 3S
SEE CONTROL DRAWING
AVERTISSEMENT
La substitution de composants peut rendre ce materiel inacceptable pour les emplacements de
Classe I, Division 2.
SC202S-N
DISSOLVED OXYGEN TRANSMITTER
MODEL
SUFFIX
SC202G-F
DISSOLVED OXYGEN TRANSMITTER
MODEL
SUFFIX
SC202G-P
CONDUCTIVITY TRANSMITTER
MODEL
SUFFIX
SC202S-K
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
9 TO 32VDC
FF-TYPE113
-10 55°C
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
9 TO 32VDC
PROFIBUS-PA
-10 55°C
Made in Japan Tokyo 180-8750 JAPAN
N200
Figure 1-1. Nameplate
Made in Japan Tokyo 180-8750 JAPAN
N200
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
24V DC
4 20mA DC
-10 55°C
Cert No. GYJ081157X
Ex ia IIC T4
Ex ia IIC T6 for Ta:40 ˚ C
SEE USER’S MANUAL BEFORE USE
Made in Japan Tokyo 180-8750 JAPAN
IM 12D08B02-01E
1-2 Introduction
CONDUCTIVITY TRANSMITTER
MODEL
SUFFIX
SC202S-F
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
FISCO
17.5VDC
or 24VDC
/380mA/5.32W
/250mA/1.2W
FF-TYPE111 or 511
Li=0 μ H, Ci=220pF
-10 55°C
Made in Japan Tokyo 180-8750 JAPAN
0344 N200
CONDUCTIVITY TRANSMITTER
MODEL
SUFFIX
SC202S-P
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
FISCO
17.5VDC
or 24VDC
/380mA/5.32W
/250mA/1.2W
PROFIBUS-PA
Li=0 μ H, Ci=220pF
-10 55°C
Made in Japan Tokyo 180-8750 JAPAN
0344 N200
FISCO field device
No.
IECEx KEM 07.0027X
Zone 0 Ex ia IIC T4
IP65
SEE CONTROL DRAWING
II 1G
No.
KEMA 07ATEX0050 X
Ex ia IIC T4
SEE CONTROL DRAWING
IP65
IS CL I, DIV 1, GP ABCD
AND AEx ia IIC
T4 Type 4X
Install per CONTROL DRAWING
IKE027-A10 P.5 to P.8
LR81741 C
R
CL I, DIV 1, GP ABCD
Ex ia IIC T4
SEE CONTROL DRAWING
IP65 Type 3S
WARNING
Substitution of components may impair intrinsic safety
AVERTISSEMENT
La substitution de composants peut compromeltre la securite intrinseque.
SC202S-F/-P
CONDUCTIVITY TRANSMITTER
MODEL
SUFFIX
SC202S-B
CONDUCTIVITY TRANSMITTER
MODEL
SUFFIX
SC202S-D
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
9 TO 32VDC
FF-TYPE 113
-10 55°C
SUPPLY
OUTPUT
AMB.TEMP.
STYLE
No.
9 TO 32VDC
PROFIBUS-PA
-10 55°C
Made in Japan Tokyo 180-8750 JAPAN
N200
Figure 1-2. Nameplate
Made in Japan Tokyo 180-8750 JAPAN
N200
FNICO field device
II 3 G
No.
IECEx KEM 07.0027X
Ex nA[nL] IIC T4
Ex nA[nL] IIC T6 for Ta:40 °C
IP65
SEE CONTROL DRAWING
No.
KEMA 07ATEX0051
EEx nA[nL] IIC T4
EEx nA[nL] IIC T6 for Ta:40 °C
IP65
SEE CONTROL DRAWING
NI CL I, DIV 2, GP ABCD AND
CL I, ZN 2, GP IIC
T4
Type 4X
Install per CONTROL DRAWING
IKE027-A10 P.9 to P.10
LR81741 C
R
WARNING
Substitution of components may impair suitability for class I, Division 2.
Ex nA[nL] IIC
NI CL I, DIV 2, GP ABCD
T4
T6 for Ta:40 °C
IP65 Type 3S
SEE CONTROL DRAWING
AVERTISSEMENT
La substitution de composants peut rendre ce materiel inacceptable pour les emplacements de
Classe I, Division 2.
SC202S-B/-D
NOTE : Check that all the parts are present, including mounting hardware, as specified in the option codes at the end of the model number.
For a description of the model codes, refer to Chapter 2 of this manual under General
Specifications.
Basic Parts List:Transmitter SC202
User’s Manual English
Optional mounting hardware when specified (See model code)
IM 12D08B02-01E
Introduction 1-3
1-2. Application
The EXA transmitter is intended to be used for continuous on-line measurement in industrial installations. The unit combines simple operation and microprocessor-based performance with advanced selfdiagnostics and enhanced communications capability to meet the most advanced requirements. The measurement can be used as part of an automated process control system. It can also be used to indicate dangerous limits of a process, to monitor product quality, or to function as a simple controller for a dosing/neutralisation system.
Yokogawa designed the EXA analyzer to withstand harsh environments. The transmitter may be installed either indoors or outside because the IP65 (NEMA 4X) housing and cabling glands ensure the unit is adequately protected. The flexible polycarbonate window on the front door of the EXA allows pushbutton access to the keypad, thus preserving the water and dust protection of the unit even during routine maintenance operations.
A variety of EXA hardware is optionally available to allow wall, pipe, or panel mounting. Selecting a proper installation site will permit ease of operation. Sensors should normally be mounted close to the transmitter in order to ensure easy calibration and peak performance.
The EXA is delivered with a general purpose default setting for programmable items. (Default settings are listed in Chapter 5 and again in Chapter 11). While this initial configuration allows easy start-up, the configuration should be adjusted to suit each particular application. An example of an adjustable item is the type of temperature sensor used. The EXA can be adjusted for any one of five different types of temperature sensors.
To record such configuration adjustments, write changes in the space provided in Chapter 11 of this manual. Because the EXA is suitable for use as a monitor, a controller or an alarm instrument, program configuration possibilities are numerous.
Details provided in this user’s manual are sufficient to operate the EXA with all Yokogawa sensor systems and a wide range of third-party commercially available probes. For best results, read this manual in conjunction with the corresponding sensor user’s manual.
Yokogawa designed and built the EXA to meet the CE regulatory standards. The unit meets or exceeds stringent requirements of EN61326 Class A without compromise, to assure the user of continued accurate performance in even the most demanding industrial installations.
IM 12D08B02-01E
1-4 Introduction
IM 12D08B02-01E
Specifications 2-1
2. GENERAL SPECIFICATIONS
2-1. Specifications
A. Input specifications
: square wave excitation. Cell constants from
0.008 to 50 cm -1 .
B. Detection method
: voltage are dynamically optimized.
5 preprogrammed matrixes and a 25point user-programmable matrix.
H. Logbook
: nostic data. Available through HART® link, with diagnostic information available in the display.
C. Input ranges
- Conductivity :
Minimum : 0 μ S/cm
Maximum : 200 mS x (Cell constant)
(overrange 1999 mS / cm).
- Resistivity :
Minimum : 0.005 k
Maximum : 999 M
- Temperature
Pt1000
Ω
Ω / (Cell constant)
x cm
: -20 to +250 °C (0 to 500 °F)
Pt100 and Ni100 : -20 to +200 °C (0 to 400 °F)
8K55 NTC : -10 to +120 °C (10 to 250 °F)
PB36 NTC : -20 to +120 °C (0 to 250 °F)
D. Output Span
- Conductivity : - min 0.01
μ S/cm
: - max. 1999 mS/cm. (max 90% zero suppression)
- Resistivity : - min 0.001k
Ω xcm
: - max. 999 M Ω x cm. (max 90% zero suppression)
I. Display
: play of 31/2 digits 12.5 mm high. Message display of 6 alpha numeric characters, 7 mm high.
Warning flags and units (mS/cm, k Ω ·cm, μ S/ cm and M Ω ·cm) as appropriate.
J. Power supply
:
SC202G ; 17 to 40 volts, see Fig.2-1
SC202S : 17 to 31.5 volts, see Fig.2-2
Maximum load resistance
For the SC202G, see Fig. 1
200 Ω or less with the PH201G
50 Ω or less with the SDBT
For the SC202S, see Fig. 2-2
1150
1000
800
600
400
E. Transmission Signal
: Isolated output of 4-20 mA DC
Burn up (21 mA) or Burn down
(3.6 mA when HART® or distributor comm. is non-used, 3.9 mA when HART® or distributor comm. is used) or pulse of 21 mA to signal failure.
F. Temperature compensation
: under C (inputs).
- Reference temp.
: programmable from 0 to 100 °C or 30 to 210 °F
(default 25 °C).
G. Compensation algorithm
-NaCl :
(default).
-T.C.
- Matrix
Two independent user programmable temperature coefficients, from -0.0% to 3.5% per °C (°F) by adjustment or calibration.
: Conductivity function of concentration and temperature. Choice out of
Possible
0
0 10 17 18 20
Voltage (V)
30 40
F06.EPS
Fig.2-1 Supply voltage/ load diagram for the SC202G
800
775
600
425
400
200
Possible
0
12 16
17
20 24 28
Voltage (V)
Fig.2-2 Supply voltage/ load diagram for the SC202S
32
31.5 V
K. Input isolation
:
L. Weight
Body weight : approx. 1.6 kg
Mounting brackets weight: approx. 0.7 kg.
IM 12D08B02-01E
2-2 Specifications
2-2. Operating specifications
A. Performance (under reference conditions with sensor simulation)
Conductivity
- Accuracy : ±0.5% F.S.
Conductivity (1
μ
μ
S x K cm
S x K cm
-1
-1
to 200 mS x K cm
to 2
- Accuracy : ±1% F.S.
μ S x K cm -1 )
-1 )
H. Operation protection
: 3-digit programmable password.
I. EMC Conformity standards
EN 61326-1 Class A, Table 2
(For use in industrial locations)
EN
,
61326-2-3
EN 61326-2-5 (pending)
Resistivity Ω / K cm -1 to 0.5M
Ω / K cm -1 )
- Accuracy :
Resistivity
- Accuracy :
Ω
±0.5% F.S.
/ K cm -1 to 1M Ω / K cm -1
±1% F.S.
)
CAUTION
This instrument is a Class A product, and it is designed for use in the industrial environment.
Please use this instrument in the industrial environment only.
Temperature Ω , PB36 NTC, Ni100)
- Accuracy : ±0.3°C
Temperature Ω , 8.55k
Ω NTC)
- Accuracy : ±0.4°C
- NaCl table :
- Matrix compensation
:
±1 %
±3 %
Note on performance specifications: mA
"F.S." means maximum setting value of transmitter output. "K" means cell constant.
YOKOGAWA provides conductivity sensors which cell constant are 0.1 to 10 cm -1 .
The following tolerance is added to above performance.
"4 - 20 mA" mA output tolerance : ± 0.02 mA of
Step response: 90 % (< 2 decades) in 7 seconds
B. Ambient operating temperature
:
C. Storage temperature
: -30 to +70 °C (-20 to 160 ºF)
D. Humidity
: 10 to 90% RH non-condensing
E. Housing
: Cast aluminium case with chemically resistant coating, cover with flexible polycarbonate window. Case color is off-white (Equivalent to Munsell 2.5Y8.4/1.2) and cover is
Deepsea Moss green (Equivalent to Munsell
0.6GY3.1/2.0). Cable entry is via two PG13.5 nylon glands. Weather resistant to IP65 and
NEMA 4X standards. Pipe wall or panel mounting, using optional hardware.
F. Data protection
EEPROM for configuration and logbook
G. Automatic safeguard
: stroke is made for 10 min.
IM 12D08B02-01E
J. Explosionproof type
Item
Refer to control drawings.
Description
Factory
Mutual (FM)
FM Intrinsically safe Approval
Applicable standard: FM3600, FM3610, FM3810
Intrinsically Safe for Class I, Division 1, Groups ABCD
Class I, Zone 0, AEx ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Intrinsically Safe Apparatus Parameters
Vmax=31.5 V, Imax=100 mA,
Pmax=1.2 W, Ci=22 nF, Li=35 μ H
FM Non-incendive safe Approval
Applicable standard: FM3600, FM3611, FM3810
Non-incendive Safe for Class I, Division 2,
Groups ABCD, Zone 2
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Non-incendive Safe Apparatus Parameters
Vmax=31.5 V, Ci=22 nF, Li=35 μ H
CENELEC
ATEX
CENELEC ATEX (KEMA) Intrinsically safe Approval
Applicable standard: EN60079-0, EN50020
EN60079-26
Certificate: KEMA 06ATEX0220 X
Ex ia IIC, Group: II, Category: 1G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=31.5 V, Ii=100 mA, Pi=1.2 W, Ci=22 nF, Li=35 μ H
CENELEC ATEX (KEMA) Type of protection "n"
Applicable standard: EN60079-0:2006,
EN60079-15:2003
Certificate: KEMA 06ATEX0221
EEx nA [nL] IIC, Group: II, Category: 3G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=31.5 V, Ci=22 nF, Li=35 μ H
Item
Factory
Mutual (FM)
Description
FM Intrinsically safe Approval
Applicable standard: FM3600, FM3610, FM3810
Intrinsically Safe for Class I, Division 1, Groups ABCD
Class I, Zone 0, AEx ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Intrinsically Safe Apparatus Parameters
Entity
Vmax=24 V, Imax=250 mA,
Pmax=1.2 W, Ci=220 pF, Li=0 μ H
FISCO
Vmax=17.5 V, Imax=380 mA,
Pmax=5.32 W, Ci=220pF, Li=0 μ H
FM Non-incendive safe Approval
Applicable standard: FM3600, FM3611, FM3810
Non-incendive Safe for Class I, Division 2,
Groups ABCD, Zone 2
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Non-incendive Safe Apparatus Parameters
Entity
Vmax=32 V, Pmax=1.2 W,
Ci=220 pF, Li=0 μ H
FNICO
Vmax=32 V, Pmax=5.32 W,
Ci=220 pF, Li=0 μ H
Code
-A
-N
-A
-N
2.EPS
Code
-P or
-F
-B or
-D
FM.EPS
mA
Item
CENELEC
ATEX
Entity
CENELEC
ATEX
FISCO
CENELEC
ATEX
Description
CENELEC ATEX (KEMA) Intrinsically safe Approval
Applicable standard: EN60079-0, EN50020
EN60079-26
Certificate: KEMA 07ATEX0050 X
Ex ia IIC, Group: II, Category: 1G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Ui=24 V, Ii=250 mA, Pi=1.2 W, Ci=220 pF, Li=0 μ H
CENELEC ATEX (KEMA) Intrinsically safe Approval
Applicable standard: EN60079-0, EN50020
EN60079-26,
Certificate: KEMA 07ATEX0050 X
Ex ia IIC, Group: II, Category: 1G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Ui=17.5 V, Ii=380 mA, Pi=5.32 W, Ci=220 pF, Li=0 μ H
CENELEC ATEX (KEMA) Type of protection "n"
Applicable standard: EN60079-0:2006,
EN60079-15:2003
Certificate: KEMA 07ATEX0051
EEx nA [nL] IIC, Group: II, Category: 3G
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=32 V, Ci=220 pF, Li=0 μ H
Code
-P or
-F
-B or
-D
ATEX.EPS
Item
Canadian
Standards
Association
(CSA)
IECEx
Scheme
Description
CSA Intrinsically safe Approval
Applicable standard: C22.2, No. 0-M1991,
C22.2, No. 04-M2004, C22.2, No. 157-M1992,
C22.2, No. 61010-1
Ex ia Class I, Division 1, Groups ABCD
Ex ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui(Vmax)=31.5 V, Ii(Imax)=100 mA,
Pi(Pmax)=1.2 W, Ci=22 nF, Li=35 μ H
CSA Non-incendive safe Approval or type of protection "n"
Applicable standard: C22.2, No.0-M1991,
C22.2, No.04-M2004, C22.2, No.157-M1992,
C22.2, No.213-M1987, C22.2, No.61010-1
Class I, Division 2, Groups ABCD
Ex nA [nL] IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui(Vmax)=31.5 V, Ci=22 nF, Li=35 μ H
IECEx Intrinsically safe
Applicable standard: IEC 60079-0, IEC60079-11,
IEC60079-26
Certificate: IECEx KEM 06.0053X
Zone 0 Ex ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=31.5 V, Ii=100 mA, Pi=1.2 W, Ci=22 nF, Li=35 μ H
IECEx Type of protection "n"
Applicable standard: IEC 60079-15:2001,
IEC 60079-0:2004
Certificate: IECEx KEM 06.0053X
Ex nA [nL] IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=31.5 V, Ci=22 nF, Li=35 μ H
Code
-A
-N
-A
-N
T12E.EPS
Item
Canadian
Standards
Association
(CSA)
Description
CSA Intrinsically safe Approval
Applicable standard: C22.2, No. 0-M1991,
C22.2, No. 04-M2004, C22.2, No. 157-M1992,
C22.2, No. 61010-1
Ex ia Class I, Division 1, Groups ABCD
Ex ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Entity
Ui(Vmax)=24 V, Ii(Imax)=250 mA,
FISCO
Pi(Pmax)=1.2 W, Ci=220 pF, Li=0 μ H
Ui(Vmax)=17.5 V, Ii(Imax)=380 mA,
Pi(Pmax)=5.32 W, Ci=220 pF, Li=0 μ H
CSA Non-incendive safe Approval or type of protection "n"
Applicable standard: C22.2, No.0-M1991,
C22.2, No.04-M2004, C22.2, No.157-M1992,
C22.2, No.213-M1987, C22.2, No.61010-1
Class I, Division 2, Groups ABCD
Ex nA [nL] IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Entity:
FNICO:
T6, Amb. Temp.: -10 to 40°C
Ui(Vmax)=32 V, Ci=220 pF, Li=0
Ui(Vmax)=32 V, Ci=220 pF, Li=0
μ
μ
H
H
Code
-P or
-F
-B or
-D
CSA.EPS
Specifications 2-3
Item
IECEx
Scheme
Entity
IECEx
Scheme
FISCO
IECEx
Scheme
Description
IECEx Intrinsically safe
Applicable standard: IEC 60079-0, IEC60079-11,
IEC60079-26
Certificate: IECEx KEM 07.0027X
Zone 0 Ex ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Ui=24 V, Ii=250 mA, Pi=1.2 W, Ci=220 pF, Li=0 μ H
IECEx Intrinsically safe
Applicable standard: IEC 60079-0, IEC60079-11,
IEC60079-26, IEC60079-27
Certificate: IECEx KEM 07.0027X
Zone 0 Ex ia IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
Ui=17.5 V, Ii=380 mA, Pi=5.32 W, Ci=220 pF, Li=0 μ H
IECEx Type of protection "n"
Applicable standard: IEC 60079-15:2001,
IEC
Certificate: IECEx KEM 07.0027X
Ex nA [nL] IIC
Temp. Class: T4, Amb. Temp.: -10 to 55°C
T6, Amb. Temp.: -10 to 40°C
Ui=32 V, Ci=220 pF, Li=0 μ H
Code
-P or
-F
-B or
-D mA
NEPSI Certification (SC202S-K)
IEC.EPS
NEPSI Intrinsically Safe Type
Cert No. GYJ081157X
• Applicable Standard:
GB3836.1-2000, GB3836.4-2000
• Type of Protection and Marking Code:
Ex ia IIC T4/T6
• Ambient Temperature :
T6; –10 to 40°C, T4; –10 to 55°C
Note 1 Entity Parameters
• Intrinsically safe input parameters
(terminal + and -):
Maximum Input Voltage (Ui) = 31.5 V
Maximum Input Current (Ii) = 100 mA
Maximum Input Power (Pi) = 1.2 W
Maximum Internal Capacitance (Ci) = 22 nF
Maximum Internal Inductance (Li) = 35 μ H
• Intrinsically safe output parameters and maximum external parameters
(terminal 11 and 16):
Uo=14.4 V, Io=13 mA, Po=185 mW, Co=59 nF, Lo=200 mH
Note 2 Installation
• Electrostatic charges on the display window shall be avoided.
• The external earth connection facility shall be connected reliably.
• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric
Corporation and will void NEPSI Intrinsically safe certification.
• The user shall not change the configuration in order to maintain/ensure the explosion protection performance of the equipment. Any change may impair safety.
• For installation, use and maintenance of the product, the end user shall observe the instruction manual and the following standards:
GB50257-1996 "Code for construction and acceptance of electric device for explosion atmospheres and fire hazard electrical equipment installation engineering''.
IM 12D08B02-01E
2-4 Specifications
GB3836.13-1997 "Electrical apparatus for explosive gas atmospheres Part 13: Repair and overhaul for apparatus used in explosive gas atmospheres".
GB3836.15-2000 "Electrical apparatus for explosive gas atmospheres- Part 15: Electrical installations in hazardous area (other than mines)" .
GB3836.16-2006 "Electrical apparatus for explosive gas atmospheres- Part 16: lnspection and maintenance of electrical installation (other than mines)".
mA mA-HART® communication
A. Input : Two wire system 4-20 mA
B. Power supply :
SC202G :
SC202S :
Note:
up to 40 volts
up to 31.5 volts
The transmitter contains a switched power supply, drawing its energy from the 0-4 mA section of the signal. Consequently the 17 volt limit is applied at 4 mA. The characteristic of the unit is such that above about
7 mA on the output, the terminal voltage can drop to 14.5 volts without problem. (see figure 2-2)
C. Transmission: Isolated output of 4 to 20 mA DC.
D. Signal : Maximum load 425
(see fi gure 2-1)
Ω at 24 VDC.
Burn to signal failure acc
NAMUR Recommendation NE43
(18.01.1994)
E. Operating range : 3.9 to 21mA
F. Communication
HART®, 1200 Baud, FSK modulated on 4 to 20 mA signal
G. Configuration : Local with 6 keys
H. Software :
I. Hardware :
Firmware based on Yokogawa stack.
Yokogawa HART® Modem F9197UB
J. Other Control systems
: Yokogawa PRM, Rosemount
AMS, Siemens PDM
K. Hand Terminal : Rosemount HHT 275/375
L. Other control systems: mount AMS, Siemens PDM
M. Output span :
- Conductivity : min 0.01
μ S/cm, max. 1999 mS/
- Resistivity : min 0.001k
Ω ·cm, max. 999
IM 12D08B02-01E
M Ω
Yokogawa PRM, Rosecm.
(max 90% zero suppression)
·cm.
(max 90% zero suppression)
The instrument is user programmable for linear or non-
N. Cable specification
0.5 mm diameter or 24 AWG over maximum length of 1500 m
O. DD specification
The SC202 Device Description is available enabling communications with the Handheld Communicator and compatible devices.
PROFIBUS-PA communications
A. Input signal: Digital
B. Supply voltage: 9 to 32 V DC
C. Operating current: 26.0 mA
D. Operating values: According to IEC 1158-2
E. Bus connection
Fieldbus interface base on
IEC1158-2 according to FISCO-
Model
F. Power supply: Power supply is achieved dependant on the application by means of segment coupler
G. Data transfer: According to PROFIBUS- PA profile class B based on EN 50170 and
H. GSD file:
I. Software: Firmware based on Siemens
DPC31 stack.
J. Hardware:
DIN 19245 part 4
The actual file can be downloaded from www.profibus.com Configuration: Local with 6 keys
PC- or PCMCIA-interfaces from
Siemens
K. Other control: Siemens PDM systems
L Electrical
M. Fieldbus-cable-types: connection:
Terminals acc. to IEC 1158-2
Twisted and shielded two wire cable according to recommendation based on IEC 1158-2 Cable diameter: 6 to 12 mm (0.24 to 0.47 inch)
FOUNDATION FIELDBUS H1 communications
A. Input signal : Digital
B. Supply voltage : 9 to 32 V DC
C. Operating current : 26.0 mA (base current)
D. Operating values : According to IEC 1158-2
E. Bus connection
Fieldbus interface based on IEC
1158-2 according to FISCO-Model
F. Power supply :
Power supply is achieved dependant on application by means
G. Data transfer: of segment coupler
FF specification Rev. 1.4 Basic device
H. Function blocks :
3 x AI, Transducer, Resource
I. Files : Actual file can be downloaded from our homepage
J. Configuration : locally with 6 keys
K. Software : National Instruments:
Specifications 2-5
NI-FBUS configurator
L. Hardware : F-BUS interfaces from National Instruments (AT-FBUS, PCMIA-FBUS)
M. Other control systems:
YOKOGAWA PRM, DTM
2-3. Model and suffix codes
1. 2-wire Conductivity transmitter (General purpose)
[ Style : S3 ]
Model Suffix Code Option Code Description
SC202G
Type -A
-P
-F
Language -J
-E
Option Mounting Hardware
Hood
/U
/PM
/H
/H2
/AFTG
/ANSI
/TB
/X1
2-wire conductivity transmitter mA with HART
Profibus
FF
Japanese
English
Pipe, wall mounting bracket (Stainless steel)
Panel mounting bracket (Stainless steel)
Hood for sun protection (Carbon steel)
Hood for sun protection (Stainless steel)
Stainless steel tag plate
G1/2
1/2NPT
Screw terminal (*1)
Epoxy baked finish (*2)
(*1) It can be specified when the suffix code -A is selected.
(*2) The housing is coated with epoxy resin.
2. 2-wire Conductivity transmitter (Explosionproof type)
[ Style : S3 ]
Model Suffix Code Option Code Description
SC202S
Type -A
-K
-P
-F
-B
-N
-D
Language -J
-E
Option Mounting Hardware
Hood
/U
/PM
/H
/H2
/AFTG
/ANSI
/X1
2-wire conductivity transmitter
Intrinsic safe mA with HART (ATEX, CSA, FM)
Intrinsic safe mA with HART (NEPSI)
Intrinsic safe Profibus (ATEX, CSA, FM)
Intrinsic safe FF (ATEX, CSA, FM)
Non-incendive FF (ATEX, CSA, FM) (*2)
Non-incendive mA with HART (ATEX, CSA, FM) (*2)
Non-incendive Profibus (ATEX, CSA, FM) (*2)
Japanese
English
Pipe, wall mounting bracket (Stainless steel)
Panel mounting bracket (Stainless steel)
Hood for sun protection (Carbon steel)
Hood for sun protection (Stainless steel)
Stainless steel tag plate
G1/2
1/2NPT
Epoxy baked finish (*1)
(*1) The housing is coated with epoxy resin.
(*2) When the instrument with Suffix Code "-B,-N,-D" is used, take measures so that
the display window is not exposed to direct sunlight.
IM 12D08B02-01E
2-6 Specifications
2-4. Control Drawing SC202S mA HART® Specification (IECEx)
Intrinsically safe design
IEC Ex standard Ex ia IIC : T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
C ertificate nr. IEC Ex K EM 06.0053X
SC 202S (C onductivity/R esistivity-transmitter)
Ex ia or ib
C ertified safety barrier or pow er w ith R int= 300 :
(HA R T compatible)
+
_
G
SE N SO R (S) term inals 11-16
H azardous area
Zo ne 0 o r 1
Functional earth
Functional
earth
Safe area
U o = 31.5 V o lt D C
Io = 100 mA
Load
R esistance
24 volts D C N ominal
Supply V oltage.
+
_
Intrinsically safe design
IEC Ex standard Ex ia IIC : T4 for ambient temp. < 55°C
T6 for ambient temp.< 40°C
C ertificate nr. IEC Ex K EM 06.0053X
SC 202S (C onductivity/R esistivity-transmitter)
Ex ia or ib C ertified R epeater
Pow er Supply
(HA R T C ompatible)
O utput
+
_
G
+
_
U o = 31.5 V o lt D C
Io = 100 mA
Po = 1.2 W att
Supply
SEN SO R (S) term inals 11-16
H azardous area
Zo ne 0 o r 1
Functional
earth
Safe area
・ Sensor(s) are of a passive type to be regarded as ‘simple apparatus’.
・ Electrical data of the SC202S.
- Supply and output circuit (terminals + and -):
Maximum input voltage U i
= 31.5 V.
Maximum input current I i
= 100 mA.
Maximum input power P i
= 1.2 W.
Effective internal capacitance
Effective internal inductance
C
L i i
= 22 nF.
= 35 P H.
- Sensor input circuit (terminals 11 through 16):
Maximum output voltage U o
= 14.4 V.
Maximum output current I o
= 13 mA.
Maximum allowed external capacitance Co = 59 nF (for SC202S-A),
Co = 2.9 P F (for SC202S-N).
Maximum allowed external inductance Lo = 200 mH (for SC202S-A),
Lo = 450 mH (for SC202S-N).
・
Barriers and power supply specification must not exceed the maximum values as shown in the diagram above. These safety descriptions cover most of the commonly used industry standard barriers, isolators and power supplies.
・ The Hand Held Communicator must be of a IECEx certified intrinsically safe type in case it is used on the intrinsically safe circuit in the hazardous area or of a
IECEx certified non-incendive type in case it is used in the non-incendive circuit in the hazardous area.
IM 12D08B02-01E
Specifications 2-7
2-5. Control Drawing SC202S mA HART® Speci fi cation (ATEX)
SE N SO R (S) term inals 11-16
Intrinsically safe design
C EN ELEC standard EEx ia IIC : T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
C ertificate nr. KEM A 06ATEX 0220 X
SC 202S (C onductivity/R esistivity-transmitter)
+
_
G
Functional
H azardous area
Zone 0 or 1
Functional
Safe area
EEx ia or ib
C ertified safety barrier or pow er w ith R int=300 :
(HA R T compatible)
U o = 31.5 V o lt D C
Io = 100 mA
Load
R esistance
24 volts D C N ominal
Supply V oltage.
+
_
Intrinsically safe design
C EN ELEC standard EEx ia IIC : T4 for ambient temp. < 55°C
T6 for ambient temp.< 40°C
C ertificate nr. KEM A 06ATEX 0220 X
SC 202S (C onductivity/Resistivity-transmitter)
+
_
G
SEN SO R (S) term inals 11-16
H azardous area
Zone 0 or 1
Functional earth
EEx ia or ib C ertified R epeater
Pow er Supply
(H AR T C ompatible)
+
_
U o = 31.5 V o lt D C
Io = 100 mA
Po = 1.2 W att
Safe area
O utput
Supply
・ Sensor(s) are of a passive type to be regarded as ‘simple apparatus’.
・ Electrical data of the SC202S.
- Supply and output circuit (terminals + and -):
Maximum input voltage U i
= 31.5 V.
Maximum input current I i
= 100 mA.
Maximum input power P i
= 1.2 W.
Effective internal capacitance
Effective internal inductance
C i
= 22 nF.
L i
= 35 P H.
- Sensor input circuit (terminals 11 through 16):
Maximum output voltage U o
= 14.4 V.
Maximum output current I o
= 13 mA.
Maximum allowed external capacitance Co = 59 nF (for SC202S-A),
Co = 2.9 uF (for SC202S-N).
Maximum allowed external inductance Lo = 200 mH (for SC202S-A),
Lo = 450 mH (for SC202S-N).
・ Barriers and power supply specification must not exceed the maximum values as
shown in the diagram above. These safety descriptions cover most of the commonly used industry standard barriers, isolators and power supplies.
・ The Hand Held Communicator must be of a ATEX certified intrinsically safe type in case it is used on the intrinsically safe circuit in the hazardous area or of a ATEX certified non-incendive type in case it is used in the non-incendive circuit in the hazardous area.
IM 12D08B02-01E
2-8 Specifications
2-6. Control Drawing SC202S mA HART® Specification (FM Intrinsically safe design).
Intrinsically safe design
FM Class I, Div.1, Group ABCD,
SC202S transmitter
T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
FM Approved safety barrier or power supply
with Rint = 300
:
(HART compatible)
24 volts DC Nominal
Supply Voltage.
+
+
_
G
-
Sensor terminals 11-16
Max. cablelength: 60 mtr.
Cable dia. : 3…12 mm.
For electrical data: see text below.
Functional earth
Classified Location
Functional
earth
Unclassified Location
Load
Resistance
Figure 1
Intrinsically safe design
FM Class I, Div.1, Group ABCD,
SC202S transmitter
T4 for ambient temp. < 55°C
T6 for ambient temp. < 40°C
FM Approved
Power Supply
(HART compatible)
+
_
Output
+
_
G
Supply
Sensor
For electrical data: terminals 11-16 see text below.
Max. cablelength: 60 mtr.
Cable dia.: 3…12 mm.
Functional
earth
Classified Location Ùnclassified Location
Figure 2
・ Electrical data of the SC202S.
- Supply circuit (terminals + and ):
Maximum input voltage Vmax = 31.5 V. Maximum input current Imax = 100 mA.
Maximum input power Pmax = 1.2 W.
Effective internal capacitance Ci = 22 nF. Effective internal inductance Li = 35 P H.
- Sensor input circuit (terminals 11 through 16) :
Maximum output voltage Vt = 14.4 V.
Maximum allowed external capacitance
Maximum output current It = 10 mA.
Ca = 59.36 nF.
Maximum allowed external inductance La = 340 mH.
・ If Hand Held Terminal (HHT) is not connected to the power supply lines of the SC202S
(see figure 1):
Any FM Approved barrier or power supply may be used that meets the following requirements.
Voc or Vt d 31.5 V ; Isc or It d 100 mA; Ca t 22nF + Ccable ; La t 35 P H + Lcable
If HHT is connected to the power supply lines of the SC202S (see figure 2):
The Hand Held Terminal must be FM Approved. Refer to the manufacturers control drawing of the
HHT and the barrier/power supply to determine the cable parameters.
(Voc or Vt ) + VHHT d 31.5 V; (Isc or It ) + IHHT d 100 mA;
Ca t 22nF + Ccable+ CHHT ; La t 35 P H + Lcable+ LHHT
When installing this equipment, follow the manufacturer ’s installation drawing.
Installation should be in accordance with ANSI/ISA RP 12.06.01 “Installation of Intrinsically Safe
Systems for Hazardous (Classified) Locations” and the National Electrical Code (ANSI/NFPA 70).
Control equipment connected to the barrier/power supply must not use or generate more than 250
Vrms or Vdc.
・ Resistance between Intrinsically Safe Ground and earth ground must be less than 1.0 Ohm.
・ In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
WARNING
- Substitution of components may impair Intrinsic Safety
- To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing or read, understand and adhere to the manufacturer ’s’live maintenance procedures.
IM 12D08B02-01E Application Doc. No.: IKE026-A10 P.5 to P.6
Specifications 2-9
2-7. Control Drawing SC202S mA HART® Speci fi cation (FM Non-incendive design)
N o n in c e n d iv e d e s ig n
F M C la s s I, D iv .2 , G r o u p A B C D ,
S C 2 0 2 S tra n s m itte r
T 4 fo r a m b ie n t te m p . < 5 5 ° C
T 6 fo r a m b ie n t te m p . < 4 0 ° C
F M A p p r o v e d p o w e r s u p p ly
V o c ≦ 3 1 .5 V D C
+
-
+
_
G
S e n s o r te rm in a ls 1 1 -1 6
F o r e le c t r ic a l d a t a : s e e t e x t b e lo w .
M a x . c a b le le n g th : 6 0 m tr.
C a b le d ia . : 3 … 1 2 m m .
C la s s ifie d L o c a tio n
F u n c tio n a l e a rth
U n c la s s ifie d L o c a tio n
L o a d
R e s is ta n c e
N o n in c e n d iv e d e s ig n
F M C la s s I , D iv .2 , G ro u p A B C D ,
S C 2 0 2 S tr a n s m itte r
T 4 fo r a m b ie n t te m p . < 5 5 ° C
T 6 fo r a m b ie n t te m p . < 4 0 ° C
+
_
G
S e n s o r te rm in a ls 1 1 -1 6
F o r e le c t r ic a l d a t a : se e t e x t b e lo w .
M a x . c a b le le n g th : 6 0 m tr.
C a b le d ia .: 3 … 1 2 m m
F u n c tio n a l
e a rth
C la s s ifie d L o c a tio n
F M A p p r o v e d p o w e r s u p p ly
V o c ≦ 3 1 .5 V D C
+
-
Ù n c la s s ifie d L o c a tio n
・ Electrical data of the SC202S.
- Supply circuit (terminals + and -):
Maximum input voltage Vmax = 31.5 V. Maximum input power P max = 1.2 W
Effective internal capacitance Ci = 22 nF Effective internal inductance Li = 35 μ H
- Sensor input circuit (terminals 11 through 16):
Maximum output voltage Vt = 14.4 V. Maximum output current It = 10 mA.
Maximum allowed external capacitance Ca = 1.71 μ F.
Maximum allowed external inductance La = 600 mH.
・ The Hand Held Terminal must be FM Approved in case it is used in the classified location.
When installing this equipment, follow the manufacturers installation drawing.
Installation shall be in accordance with Article 501.4(B) of the National Electrical Code.
Non-incendive field wiring may be installed in accordance with Article 501 of the National
Electrical Code.
・ Grounding shall be in accordance with Article 250 of the National Electrical code
・ In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
WARNING
- Substitution of components may impair suitability for Division 2
- Do not remove or replace while circuit is live unless area is know to be non-hazardous
- Explosion Hazard – Do not disconnect equipment unless area is know to be
non-hazardous
- Do not reset circuit breaker unless power has been removed from the equipment or the area is know to be non-hazardous
Application Doc. No.: IKE026-A10 P.7 to P.8
IM 12D08B02-01E
2-10 Specifications
2-8. Control Drawing of SC202S mA HART® Specification (CSA)
Intrins ica lly safe d esign
C S A E x ia C lass1 , D iv.1 , G ro u p A B C D , T 4 fo r am bient tem p . < 5 5 °C
T 6 fo r am bient tem p. < 4 0 °C
S C 2 0 2 S transm itte r
C S A certified
sa fe ty b a rrie r o r p o w e r sup p ly
w ith R int= 3 0 0
:
(H A R T c o m p a tib le )
S en so r term in als 1 1 -1 6
+
_
G
Fo r electrical d ata: see text belo w .
Functio na l e arth
H a z ard o us a re a
Func tio na l
e a rth
S a fe are a
S u itable valu es are:
V m ax = 3 1 .5 V o ltD C
Im ax = 1 0 0 m A
Lo a d
R e sis ta nc e
2 4 vo lts D C N o m ina l
S up p ly V o lta ge .
+
_
Intrins ica lly safe d esign
C S A E x ia C lass1 , D iv.1 , G ro u p A B C D , T 4 fo r am bient tem p . < 5 5 °C
T 6 fo r am bient tem p . < 4 0 °C
S C 2 0 2 S transm itte r
S en so r term in als 1 1 -1 6
+
_
G
Fo r electrical d ata: see text belo w .
Func tio na l
ea rth
H a z ard o us a re a
C S A c e rtifie d
P o w e r S up p ly
(H A R T c o m p atib le )
+
_
S uitab le va lue s a re :
V m ax = 3 1 .5 V o ltD C
Im ax = 1 0 0 m A
P m ax = 1 .2 W att
O utp ut
S up p ly
S a fe a re a
・ Sensor is a thermocouples, RTD’s, passive resistive switch devices, or is CSA entity approved and meet connection requirements.
・ Electrical data of the SC202S.
- Supply and output circuit (terminals + and -)
Maximum input voltage Vmax = 31.5 V. Maximum input current Imax = 100 mA.
Maximum input power Pmax = 1.2 W.
Effective internal capacitance Ci = 22 nF. Effective internal inductance Li = 35 P H.
- Sensor input circuit (terminals 11 through 16):
Maximum output voltage Voc = 14.4 V. Maximum output current Isc = 13 mA.
Maximum allowed external capacitance Ca = 59 nF.
Maximum allowed external inductance La = 200 mH.
・ Barriers and power supply should be CSA certified. The specifications must not exceed the maximum values as shown in the diagram above. Installation should be in accordance with Canadian Electrical Code, Part I.
Maximum safe area voltage should not exceed 250 VRMS.
For Class I, Div. 2, Group ABCD the CSA certified barrier is not required, and the Sensor input circuit (terminals 11 through 16) is non-incendive having the parameters :
Maximum output voltage Voc = 14.4 V. Maximum output current Isc = 13 mA.
Maximum allowed external capacitance Ca = 2.9 P F.
Maximum allowed external inductance La = 450 mH.
・ The Hand Held Communicator must be of a CSA certified intrinsically safe type in case it is used on the intrinsically safe circuit in the hazardous area, or of a CSA certified non-incendive type in case it is used on the non-incendive circuit in the hazardous area.
IM 12D08B02-01E
Specifications 2-11
2-9. Control Drawing of SC202S FF/PB Specification (IECEx)
Safe area
Apparatus
+
-
I.S. interface
I.S. certified
Terminator
Ex ia IIC
T4 for ambient temp. d 55 q C
Ui = 24 V or Ui = 17,5 V
Ii = 250 mA Ii = 380 mA
Pi = 1,2 W Pi = 5,32 W
SC202S-F or SC202S-P
+ -
+ -
Transmitter
Sensor
Connections
I.S. certified
Terminator
+ -
Transmitter
Safe area Zone 0 or 1
Hazardous area x Sensor(s) are of a passive type to be regarded as 'simple apparatus'.
x Electrical data of the SC202S-F & SC202S-P:
-
Supply output
Maximum input voltage Ui= 24 V or
Maximum input current Ii= 250 mA
Maximum input power Pi= 1.2 W
Effective internal capacitance Ci= 220 pF;
Effective internal inductance Li= 0
FISCO
Maximum input voltage Ui= 17.5 V
Maximum input current Ii= 380 mA
Maximum input power Pi= 5.32 W
μ H.
Effective internal capacitance Ci= 220 pF;
Effective internal inductance Li= 0 μ H. x
-
Sensor input circuit:
Maximum output voltage Uo= 14.4 V; Maximum output current Io= 13 mA
Maximum allowed external capacitance Co= 59 nF
Maximum allowed external inductance Lo= 200 mH
Any I.S. interface may be used that meets the following requirements:
Uo d 24 V
Io d 250 mA
Po d 1.2 W
Ca t 220 pF + Ccable; La t 0 μ H + Lcable or
FISCO power supply
Uo d 17.5 V
Io d 380 mA
Po d 5.32 W
Ca t 220 pF + Ccable; La t 0 μ H + Lcable x Electrical data of the SC202S-B & SC202S-D (Type of protection “n”)
-
Supply output
Maximum input voltage Ui = 32 V
Effective internal capacitance Ci = 220 pF; Effective internal inductance Li = 0 μ H.
-
Sensor input circuit:
Maximum output voltage Uo= 14.4 V; Maximum output current Io= 13 mA
Maximum allowed external capacitance Co = 2.9 μ F
Maximum allowed external inductance Lo = 450 mH
IM 12D08B02-01E
2-12 Specifications
2-10. Control Drawing of SC202S FF/PB Specification (ATEX)
Safe area
Apparatus
+
-
I.S. interface
I.S. certified
Terminator
Ex ia IIC
T4 for ambient temp. d 55 q C
Ui = 24 V or Ui = 17,5 V
Ii = 250 mA Ii = 380 mA
Pi = 1,2 W Pi = 5,32 W
SC202S-F or SC202S-P
+ -
+ -
Transmitter
Sensor
Connections
I.S. certified
Terminator
+ -
Transmitter x
Safe area Zone 0 or 1
Hazardous area
Sensor(s) are of a passive type to be regarded as 'simple apparatus'. x Electrical data of the SC202S-F & SC202S-P:
- Supply and output circuit:
Maximum input voltage Ui= 24 V
Maximum input current Ii= 250 mA
Maximum input power Pi= 1.2 W
Effective internal capacitance Ci= 220 pF;
Effective internal inductance Li= 0 μ H.
or
FISCO field device
Maximum input voltage Ui= 17.5 V
Maximum input current Ii= 380 mA
Maximum input power Pi= 5.32 W
Effective internal capacitance Ci= 220 pF;
Effective internal inductance Li= 0 μ H.
- Sensor input circuit:
Maximum output voltage Uo= 14.4 V; Maximum output current Io= 13 mA
Maximum allowed external capacitance Co= 59 nF
Maximum allowed external inductance Lo= 200 mH x Any I.S. interface may be used that meets the following requirements:
Uo d 24 V
Io d 250 mA
Po d 1.2 W
Ca t 220 pF + Ccable; La t 0 μ H + Lcable
or power
Uo d d 17.5 V d t
5.32 W
Ca t 0 μ H + Lcable x Electrical data of the SC202S-B & SC202S-D (Type of protection “n”)
-
Supply output
Maximum input voltage Ui = 32 V
Effective internal capacitance Ci= 220 pF; Effective internal inductance Li= 0 μ H.
-
Sensor input circuit:
Maximum output voltage Uo=14.4V; Maximum output current Io= 13 mA
Maximum allowed external capacitance Co = 2.9
μ F
Maximum allowed external inductance Lo = 450 mH
IM 12D08B02-01E
Specifications 2-13
2-11. Control Drawing of SC202S FF/PB Specification (FM Intrinsically safe Entity)
FM Class I, DIV. 1, Group ABCD
T4 for ambient temp. d 55 q C
SC202S-F or SC202S-P
+ -
FM Approved barrier
Voc (Vt) d 24 V
Ioc (It) d 250 mA
Poc (Pt) d 1.2 W
Ca
La t t 220pF+ Ccable
0 H + Lcable
+
-
I.S. certified
Terminator
Sensor
Connections
Max. cablelength: 60 mtr.
Cable dia. : 3…12 mm.
Sensor
Connections
I.S. certified
Terminator
+ -
Transmitter
+ -
Transmitter
Unclassified Location
Division 1
Classified Location x Sensor(s) are of a passive type to be regarded as 'simple apparatus', devices which neither store nor generate voltages over 1.5 V, currents over 0.1 A, power over 25 mW or energy over 20 P J, or are FM Approvals entity approved and meet connection requirements. x Electrical data of the SC202S-F & SC202S-P:
-
Supply
Maximum input voltage Vmax= 24 V
Maximum input current Imax= 250 mA
Maximum input power Pi= 1.2 W
Effective internal capacitance Ci = 220 pF;
Effective internal inductance Li = 0 P H.
-
Sensor input circuit:
Maximum output voltage Vt= 14.4 V; Maximum output current It= 10 mA
Maximum allowed external capacitance Ca= 59.36 nF
Maximum allowed external inductance La= 340 mH x Any FM Approved barrier may be used that meets the following requirements:
Voc or Vt d 24 V
Ioc or It d 250 mA
Poc or Pt d 1.2 W
Ca t 220 pF + Ccable; La t 0 P H + Lcable
When installing this equipment, follow the manufacturer’s installation drawing.
Installation should be in accordance with ANSI/ISA RP 12.06.01 “Installation of
Intrinsically Safe Systems for Hazardous (Classified) Locations” and the National
Electrical Code (ANSI/NFPA 70).
Associated apparatus connected to the barrier must not use or generate more than
250 Vrms or Vdc. x Resistance between Intrinsically Safe Ground and earth ground must be less than 1.0
Ohm.
x In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
WARNING
- Substitution of components may impair Intrinsic Safety
- To prevent ignition of flammable or combustible atmospheres, disconnect power
before servicing or read, understand and adhere to the manufacturer’s live
maintenance procedures.
IM 12D08B02-01E
2-14 Specifications x The cable used to interconnect the devices needs to comply with the following
parameters:
Loop resistance R’: 15 … 150 Ω /km; Inductance per unit length L’: 0,4 … 1 mH/km
Capacitance per unit length C’: 80 … 200 nF/km
(C’ = C’ line/line + 0,5 C’ line/screen if both line are floating)
(C’ = C’ line/line + C’ line/screen if the screen is connected to one line)
Length of spur cable: max. 30 m
Length of trunk cable: max. 1 km
Length of splice : max. 1 m
WARNING
- Substitution of components may impair Intrinsic Safety
- To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing or read, understand and adhere to the manufacturer’s live maintenance procedures.
Application Doc. No.: IKE027-A10 P.5 to P.6
IM 12D08B02-01E
Specifications 2-15
2-12. Control Drawing of SC202S FF/PB Specification (FM Intrinsically safe FISCO)
FM Class I, DIV. 1, Group ABCD
T4 for ambient temp. d 55 q C
SC202S-F or SC202S-P
+ -
Sensor
Connections
Max. cablelength: 60 mtr.
Cable dia. : 3…12 mm.
Sensor
Connections
FM Approved
FISCO barrier
Voc (Vt) d 17,5 V
Ioc (It) d 380 mA
Poc (Pt) d 5,32 W
+
-
FM Approved
Terminator
R = 90..100
Ω
C = 0..2,2 μ F
FM Approved
Terminator
R = 90..100
Ω
C = 0..2,2 μ F
+ -
Transmitter
+ -
Transmitter
Unclassified Location
Division 1
Classified Location x Sensor(s) are of a passive type to be regarded as 'simple apparatus', devices which neither store nor generate voltages over 1.5 V, currents over 0.1 A, power over 25 mW or energy over 20 P J, or are FM Approvals entity approved and meet connection requirements. x Electrical data of the SC202S-F & SC202S-P:
-
Supply circuit: Vmax = 17.5 V; Imax = 380 mA; Pi = 5.32 W; Ci = 220 pF; Li = 0 P H.
-
Sensor input circuit: Vt = 14.4 V; It = 10 mA; Ca = 59.36 nF; La = 340 mH x Any FM Approved FISCO barrier may be used that meets the following requirements:
Voc or Vt d 17.5 V; Ioc or It d 380 mA; Poc or Pt d 5.32 W
When installing this equipment, follow the manufacturer’s installation drawing.
Installation should be in accordance with ANSI/ISA RP 12.06.01 “Installation of
Intrinsically Safe Systems for Hazardous (Classified) Locations” and the National
Electrical Code (ANSI/NFPA 70).
Associated apparatus connected to the FISCO barrier must not use or generate more
than x Resistance between FISCO Intrinsically Safe Ground and earth ground must be less than
1.0 Ohm. x In case of using cable glands in Outdoor location, they shall be UV rated or made of metal. x The FISCO concept allows the interconnection of several I.S. apparatus not specifically examined in such combination. The criterion for such interconnection is that the voltage
(Vmax), the current (Imax) and the power (Pi) which I.S. apparatus can receive and remain intrinsically safe, considering faults, must be equal to or greater that the voltage (Voc, Vt), the current (Ioc, It) and the power (Poc, Pt) which can be providede by the FM approved
FISCO barrier. In addition, the maximum unprotected residual capacitance (Ci) and inductance (Li) of each apparatus (other than the terminator) connected to the Fieldbus must be less than or equal to 5nF and 10 μ H respectively.
IM 12D08B02-01E
2-16 Specifications x In each I.S. Fieldbus segment only one active source, normally the FM Approved FISCO barrier, is allowed to provide the necessary power for the Fieldbus system. All other equipment connected to the bus cable has to be passive (not providing energy to the system), except to a leakage current of 50 μ A for each connected device. Seperately powered equipment needs a galvanic isolation to insure that the I.S. Fieldbus circuit remains passive. x The cable used to interconnect the devices needs to comply with the following
parameters:
Loop resistance R’: 15 … 150 Ω /km; Inductance per unit length L’: 0,4 … 1 mH/km
Capacitance per unit length C’: 80 … 200 nF/km
(C’ = C’ line/line + 0,5 C’ line/screen if both line are floating)
(C’ = C’ line/line + C’ line/screen if the screen is connected to one line)
Length of spur cable: max. 30 m
Length of trunk cable: max. 1 km
Length of splice : max. 1 m
WARNING
- Substitution of components may impair Intrinsic Safety
- To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing or read, understand and adhere to the manufacturer’s live maintenance procedures.
Application Doc. No.: IKE027-A10 P.7 to P.8
IM 12D08B02-01E
Specifications 2-17
2-13. Control Drawing of SC202S FF/PB Specification (FM Non-incendive Entity)
FM Class I, DIV. 2, Group ABCD
T4 for ambient temp. d 55 q C
T6 for ambient temp.
d 40 q C
SC202S-B or SC202S-D
+ -
FM Approved
Power Supply
Voc d 32 VDC
+
-
FM Approved
Terminator
R = 90..100
Ω
C = 0..2,2 μ F
Sensor
Connections
Max. cablelength: 60 mtr.
Cable dia.: 3…12 mm.
Sensor
Connections
FM Approved
Terminator
R = 90..100
Ω
C = 0..2,2 μ F
+ -
Transmitter
+ -
Transmitter
Division 2
Unclassified Location Classified Location x Sensor(s) are of a passive type to be regarded as 'simple apparatus', devices which neither store nor generate voltages over 1.5 V, currents over 0.1 A, power over 25 mW or energy over 20 μ J, or are FM Approvals entity approved and meet connection requirements. x Electrical data of the SC202S-B & SC202S-D:
-
Supply circuit: Vmax= 32 V; Pi= 1.2 W; Ci= 220 pF; Li= 0 P H
-
Sensor input circuit: Vt= 14.4 V; It= 10 mA; Ca= 1.71 μ F; La= 600 mH
When installing this equipment, follow the manufacturers installation drawing.
Installation shall be in accordance with Article 501.4(B) of the National Electrical Code
(ANSI/NFPA 79). Nonincendive field wiring may be installed in accordance with Article
501.4(B)(3) x Grounding shall be in accordance with Article 250 of the National Electrical code. x In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
WARNING
- Substitution of components may impair suitability for Division 2.
- Do not remove or replace while circuit is live unless area is know to be non-hazardous
- Explosion Hazard – Do not disconnect equipment unless area is know to be non-hazardous
- Do not reset circuit breaker unless power has been removed from the equipment or the area is know to be non-hazardous
Application Doc. No.: IKE027-A10 P.9
IM 12D08B02-01E
2-18 Specifications
2-14. Control Drawing of SC202S FF/PB Specification (FM Non-incendive FNICO)
FM Class I, DIV. 2, Group ABCD
T4 for ambient temp. d 55 q C
T6 for ambient temp.
d 40 q C
SC202S-B or SC202S-D
+ -
FM Approved
Power Supply
Voc d 32 VDC
+
-
FM Approved
Terminator
R = 90..100
Ω
C = 0..2,2 μ F
Sensor
Connections
Max. cablelength: 60 mtr.
Cable dia.: 3…12 mm.
Sensor
Connections
FM Approved
Terminator
R = 90..100
Ω
C = 0..2,2 μ F
+ -
Transmitter
+ -
Transmitter
Division 2
Unclassified Location Classified Location x Sensor(s) are of a passive type to be regarded as 'simple apparatus', devices which neither store nor generate voltages over 1.5 V, currents over 0.1 A, power over 25 mW or energy over 20 P J, or are FM Approvals entity approved and meet connection requirements. x Electrical data of the SC202S-B & SC202S-D:
-
Supply circuit: Vmax= 32 V; Pi= 5.32 W; Ci= 220 pF; Li= 0 P H
-
Sensor input circuit: Vt= 14.4 V; It= 10 mA; Ca = 1.71 μ F; La = 600 mH
When installing this equipment, follow the manufacturers installation drawing.
Installation shall be in accordance with Article 501.4(B) of the National Electrical
Code (ANSI/NFPA 79).
Non-incendive field wiring may be installed in accordance with Article 501.4(B)(3) x Grounding shall be in accordance with Article 250 of the National Electrical code. x In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
WARNING
- Substitution of components may impair suitability for Division 2.
- Do not remove or replace while circuit is live unless area is know to be non-hazardous
- Explosion Hazard – Do not disconnect equipment unless area is know to be non-hazardous
- Do not reset circuit breaker unless power has been removed from the equipment or the area is know to be non-hazardous
Application Doc. No.: IKE027-A10 P.10
IM 12D08B02-01E
Specifications 2-19
2-15. Control Drawing of SC202S FF/PB Specification (CSA)
Safe area
Apparatus -
+ I.S. interface
I.S. certified
Terminator
CSA Ex ia Class I, DIV. 1, Group ABCD
T4 for ambient temp. d 55 q C
Ui = 24 V or Ui = 17,5 V
Ii = 250 mA Ii = 380 mA
Pi = 1,2 W Pi = 5,32 W
SC202S-F or SC202S-P
+ -
+ -
Transmitter
Sensor
Connections
I.S. certified
Terminator
+
Transmitter
-
Safe area Zone 0 or 1 x x
Hazardous area
Sensor(s) are a thermocouple, RTD's, passive resistive switch devices, or is CSA entity approved and meet connection requirements.
Electrical data of the SC202S-F & SC202S-P:
-
Supply circuit:
Maximum input voltage Ui = 24 V
Maximum input current Ii = 250 mA
Maximum input power Pi = 1.2 W
Effective internal capacitance Ci = 220 pF; Effective internal inductance Li = 0 μ H.
or
FISCO field device
Maximum input voltage Ui = 17.5 V
Maximum input current Ii = 380 mA
Maximum input power Pi = 5.32 W
Effective internal capacitance Ci = 220 pF;
Effective internal inductance Li = 0 μ H.
-
Sensor input circuit:
Maximum output voltage Uo = 14.4 V; Maximum output current Io = 13 mA x
Maximum allowed external capacitance Co = 59 nF
Maximum allowed external inductance Lo = 200 mH
Any CSA approved I.S. interface may be used that meets the following requirements:
Uo d 24 V
Io d 250 mA
Po d 1.2 W
Co t 220 pF + Ccable; Lo t 0 μ H + Lcable or
FISCO field device
Uo d 17.5 V
Io d 380 mA
Po d 5.32 W
Co t 220 pF + Ccable; Lo t 0 μ H + Lcable
Installation should be in accordance with Canadian Electrical Code, Part I or CEC, Part I.
Maximum safe area voltage should not exceed 250 Vrms. x Electrical data of the SC202S-B & SC202S-D (non-incendive):
For Class I, Div.2, Group ABCD the CSA approved I.S. interface is not required, and the sensor input circuit is non-incendive having the parameters:
Maximum output voltage Uo = 14.4 V; Maximum output current Io = 13 mA
Maximum allowed external capacitance Co = 2.9 μ F
Maximum allowed external inductance Lo = 450 mH
IM 12D08B02-01E
2-20 Specifications
IM 12D08B02-01E
Installation and wiring 3-1
3. INSTALLATION AND WIRING
3-1. Installation and dimensions
3-1-1. Installation site
The EXA transmitter is weatherproof and can be installed inside or outside. It should, however, be installed as close as possible to the sensor to avoid long cable runs between sensor and transmitter. In any case, the cable length should not exceed 60 meters (200 feet). Select an installation site where:
• Mechanical vibrations and shocks are negligible
• No relay/power switches are in the direct environment
• Access is possible to the cable glands (see figure 3-1)
• The transmitter is not mounted in direct sunlight or severe weather conditions
When the instrument with Suffix Code "-B,-N,-D" is used, take measures so that the display window is not exposed to direct sunlight
• Maintenance procedures are possible (avoiding corrosive environments)
The ambient temperature and humidity of the installation environment must be within the limits of the instrument specifications. (See chapter 2).
3-1-2. Mounting methods
Refer to figures 3-2 and 3-3. Note that the EXA transmitter has universal mounting capabilities:
• Panel mounting using optinal bracket, refer to Fig. 3-2a.
• Panel mounting using two (2) self-tapping screws, refer to Fig. 3-2b.
• Surface mounting on a plate (using bolts from the back)
• Wall mounting on a bracket (for example, on a solid wall)
• Pipe mounting using a bracket on a horizontal or vertical pipe (nominal pipe diameter JIS 50A)
202 (7.95)
162 (6.4) 155 (6.1)
Panel thickness
1 to 10
(0.04 to 0.39)
Unit: mm (inch)
180
(7)
130
(5.1)
50
(2)
30
(1.2)
(1.2)
30
60 (2.36)
Grounding terminal
(M4 screw)
42
(1.65)
Hood (Option)
Option code : / H □
68 (2.7)
115
77
(3)
(4.5)
34
(1.3)
Sensor cable inlet cable gland (Pg13.5)
38 80 3.9
(1.5) (3.15) (0.15)
PANEL CUTOUT
173 +1.1
0
138
(6.81) (5.43)
156 +1.1
0
(6.14)
185
205
(7.28)
(8.07)
Transmission signal cable inlet
Cable gland : Pg13.5
1.eps
121
(4.76)
Fig. 3-2a. Panel mounting diagram
5.eps
49
(1.93)
Approx.
55
(2.2) Adapter
G1/2 screw (/AFTG)
1/2 NPT screw (/ANSI)
Fig. 3-1. Housing dimensions and layout of glands
2.eps
IM 12D08B02-01E
3-2 Installation and wiring
Unit: mm (inch)
+1 0
SPACING PANEL CUTOUT
18.5 (0.72)
PANEL CUTOUT
Fig. 3-2b. Panel mounting using two (2) self-tapping screws
3.5
(0.14)
56
(2.20)
Pipe mounting
(Vertical)
Unit: mm (inch)
Pipe mounting
(Horizontal)
2-Ø6.5
(0.26)
200
(7.87)
4-Ø10
(0.4)
70
(2.75)
77 (3)
115
(4.5)
Nominal 50 A (O.D. Ø60.5 mm)
(2 inch pipe)
4.eps
Figure 3-3. Wall and pipe mounting diagram
Figure 3-4. Internal view of EXA wiring compartment
IM 12D08B02-01E
Installation and wiring 3-3
3-2. Preparation
Refer to figure 3-4. The power/output connections and the sensor connections should be made in accordance with the diagram on page 3-6. The terminals are of a plug in style for ease of mounting.
To open the EXA 202 for wiring:
1. Loosen the four frontplate screws and remove the cover.
2. The terminal strip is now visible.
3.
4.
Commission the instrument as required or use the default settings.
5. Replace the cover and secure frontplate with the four screws.
6. Connect the grounding terminals to protective earth.
7. The optional hose connection is used to guide the cables coming from an immersion fitting through a protective plastic tubing to the transmitter.
3-2-1. Cables, terminals and glands
The SC202 is equipped with terminals suitable for the connection of finished cables in the size range:
0.13 to 2.5 mm (26 to 14 AWG). The glands will form a tight seal on cables with an outside diameter in the range of 6 to 12 mm (0.24 to 0.47 inches).
Sensor cable gland
Grounding terminal
Power/Output cable gland
Figure 3-5. Glands to be used for cabling
IM 12D08B02-01E
3-4 Installation and wiring
COMPUTER
HAND HELD
COMMUNICATOR
HOLD
YES
>
FAIL MODE
NO
YES NO
ENT
MEASURE
AUT.CAL
MAN.CAL
DISPLAY
TEMP
HOLD
MODE
ENT
YOKOGAWA
OUTPUT/SUPPLY
INPUT
2,5 or 10 m
SENSORS
DISTRIBUTOR
0 1 2 100 1 8 0
Safety Barrier
SC202S only
RECORDER
Figure 3-6. System configuration
3-3. Wiring of sensors
3-3-1. General precautions
Generally, transmission of signals from SC sensors is at a low voltage and current level. Thus a lot of care must be taken to avoid interference. Before connecting sensor cables to the transmitter make sure that following conditions are met:
– the sensor cables are not mounted in tracks together with high voltage and or power switching cables
– only standard sensor cables or extension cable are used
– the transmitter is mounted within the distance of the sensor cables (max. 10 m) + up to 50 m WF10 extension cable.
– the setup is kept flexible for easy insertion and retraction of the sensors in the fitting.
3-3-2. Additional precautions for installations in hazardous areas - Intrinsic safe
Make sure that the total of capacitance and inductances connected to the input terminals of the EXA
SC202S do not exceed the limits given in the certificate.
This sets a limit to the cable and extensions used.
– The intrinsic safe version of the EXA 202 instrument can be mounted in Zone 1.
– The sensors can be installed in Zone 0 or Zone 1 if a safety barrier according to the limits given in the system certificate is used.
– Ensure that the total of capacitance and inductances connected to the terminals of the EXA SC202 do not exceed the limits given in the certificate of the safety barrier or distributor.
– The cable used should preferably have a BLUE colour or marking on the outside.
– Installation for (sensors in Zone 0 or 1):
Generally, the distributor with input/output isolation has no external earth connection. If there is an earth connection on the distributor and the external connection of the transmitter is connected to
“protective” earth, the shield of the 2-wire cable may NOT be connected to “protective” earth at the distributor too.
IM 12D08B02-01E
Installation and wiring 3-5
3-3-3. Installation in: Hazardous Area-Non-Incendive
The SC202S-N may be installed in a Category 3/ Zone 2/ Div.2 area without the use of safety barriers.
Maximum permissible supply voltage 31.5V.
3-4. Wiring of power supply
3-4-1. General precautions
WARNING
Do not activate the power supply yet. First make sure that the DC-power supply is according to the specifications given.
DO NOT USE ALTERNATING CURRENT OR MAINS POWER SUPPLY! !
The cable leading to the distributor (power supply) or safety barrier transports power to and output signal from the transmitter. Use a two conductor shielded cable with a size of at least 1.25 mm 2 and an outside diameter of 6 to 12 mm. The cable gland supplied with the instrument accepts these diameters.
The maximum length of the cable is 2000 metre, or 1500 metres when using the communications. This ensures the minimum operating voltage for the instrument.
Grounding:
• If the transmitter is mounted on a grounded surface (e.g. a metal frame fixed in the soil) the shield of the 2-wire cable may NOT be connected to ground at the distributor.
• If the transmitter is mounted on a non-conducting surface (e.g. a brick wall) it is recommended to ground the shield of the 2-wire cable at the distributor end.
3-4-2. Connection of the power supply
The terminal strip is accessed as was described in section 3-2-1. Use the left-hand gland to insert the supply/ output cable to the transmitter. Connect the supply to the terminals marked +, - and G as is indicated in figures 3-11.
mA 3-4-3. Switching the instrument on
After all connections are made and checked, the power can be switched on from the distributor. Observe the correct activation of the instrument at the display. If for any reason the display does not indicate a value, consult the trouble shooting section.
11
12
13
14
15
16 white brown green yellow grey pink
5
6
4
1 2
3
Fig. 3-7. Connection diagrams
IM 12D08B02-01E
3-6 Installation and wiring
3-5. Sensor wiring
Refer to figure 3-9, which includes drawings that outline sensor wiring.
For the SC4AJ, SC8SG and SC210G sensors, see Appendix 2.
The EXA SC202 can be used with a wide range of commercially available sensor types if provided with shielded cables, both from Yokogawa and other manufacturers. The sensor systems from Yokogawa fall into two categories, the ones that use fixed cables and the ones with separate cables.
To connect sensors with fixed cables, simply match the terminal numbers in the instrument with the identification numbers on the cable ends.
The separate sensors and the WU40-LH □□ cables are also numbered, but the numbers do not always match with the terminal numbers in the instrument. Figure 3-9 indicates how to connect the different sensor types.
CONDUCTIVITY / RESISTIVITY TRANSMITTER
11 TEMPERATURE
12 TEMPERATURE
13 CELL
14 CELL
15 CELL
16 CELL
1
2
1
2
BROWN
BROWN
YELLOW / GREEN
RED
11 TEMPERATURE
12 TEMPERATURE
13 OUTER ELECTRODE
14 OUTER ELECTRODE
15 INNER ELECTRODE
16 INNER ELECTRODE
SEPARATE SENSORS WITH WU40-LH . . CABLE
11 TEMPERATURE
12 TEMPERATURE
13 OUTER ELECTRODE
14 OUTER ELECTRODE
15 INNER ELECTRODE
16 INNER ELECTRODE
SC4A... SENSORS WITH INTEGRATED CABLE
Figure 3-9. Sensor wiring diagrams
SX42-SX . . - . F SENSORS
IM 12D08B02-01E
Installation and wiring 3-7
3-6. Other sensor systems
To connect other sensor systems, follow the general pattern of the terminal connections as listed below:
11 and 12
13 and 14
: Always used for temperature compensation resistor input.
: Normally used for the outer electrode
15 and 16 : Used for inner electrode
In case a 4-electrode measuring system will be used, 14 and 16 should be used for the current electrodes.
Please ensure that shielded cabling will be used.
In figure 3-10 this is shown in a schematic way.
11 12 13 14 15 16 t
2-electrode configuration
Figure 3-10. Connection diagram for other sensors
11 12 13 14 15 16 t
4-electrode configuration
Figure 3-11. Terminal identification label
3-6-1. Sensor cable connections using junction box (BA10) and extension cable (WF10)
Where a convenient installation is not possible using the standard cables between sensors and transmitter, a junction box and extension cable may be used. The Yokogawa BA10 junction box and the WF10 extension cable should be used. These items are manufactured to a very high standard and are necessary to ensure that the specifications of the system are not compromised. The total cable length should not exceed 60 metres (e.g. 5 m fixed cable and 55 m extension cable).
Note : 17 of both WF10 and BA10 do not need to be used.
IM 12D08B02-01E
3-8 Installation and wiring
11 Red
12 Blue
15 Core 16 Screen
White Co-axial cable
14 Overall Screen
13 Core 17 Screen
Brown Co-axial Cable
WF10 Cable
TRANSMITTER / CONVERTER
11
12
17
13
15
16
14
Thermistor (Temperature sensor)
Secondary Coil
Primary Coil
Ground (Shield)
Red
C
E
Overall shield
B White
Brown A
Screen
D
Blue
Fig. 3-12. Connection of WF10 extension cable and BA10/BP10 junction box
NOTE :
See page 3-10 for termination for WF10 cable in combination with EXA SC
>Connections differential 4-electrode
A-15
B-16
C-13
D-14
E-11
F-12
S-3 or 63 temp
IM 12D08B02-01E
Installation and wiring 3-9
Extension cable may be purchased in bulk quantities, cut to length. Then it is necessary to terminate the cable as shown below.
Termination procedure for WF10 cable.
Slide 3 cm of heat shrink tube (9 x 1.5) over the cable end to be terminated.
2.
3 cm heat shrink
9 cm remove insulation
Fig. 3-13a.
Remove loose copper screening, and cut off the cotton packing threads as short as possible.
Strip insulation from the last 3 cm of the brown, and the white coaxial cores.
3 cm cotton threads
Fig. 3-13b.
Extract the coaxial cores from the braid, and trim off the black (low-noise) screening material as short as possible.
Insulate the overall screen and drain wire (14) and the 2 coaxial screens with suitable plastic tubing.
Strip and terminate all ends with suitable (crimp) terminals and identify with numbers as shown.
Red
Blue
Black
11
12
14
White
15
Brown
16
13
17
Fig. 3-13c.
IM 12D08B02-01E
Operation 4-1
4. OPERATION; DISPLAY FUNCTIONS AND SETTING
4-1. Operator interface
This section provides an overview of the operation of the EXA operator interface. The basic procedures for obtaining access to the three levels of operation are described briefly. For a step-by-step guide to data entry, refer to the relevant section of this user’s manual. Figure 4-1 shows the EXA operator interface.
LEVEL 1: Maintenance
These functions are accessible by pushbutton through a flexible front cover window. The functions make up the normal day-to-day operations that an operator may be required to complete. Adjustment of the display and routine calibration are among the features accessible in this way. (See table 4-1).
LEVEL 2: Commissioning
A second menu is exposed when the EXA front cover is removed and the display board is revealed.
Users gain access to this menu by pressing the button marked service menu. (See table 4-1).
LEVEL 3: Service
* in the lower right of the display board.
For more advanced configuration selections, press the button marked * , then press “NO” repeatedly bers in the commissioning menu provide access to the more advanced functions. An explanation of the
Service Codes is listed in chapter 5 and an overview table is shown in chapter 11.
Can operate with front panel shut Need to open front panel cover to operate
Measurement Mode
MODE key
Maintenande Mode
CALIB(ration)
NO key
DISP.1
NO key
DISP.2
NO key
HOLD
NO key
* key
Commissioning Mode
*OUTP Output Range Setting
NO key
*HOLD HOLD Settting
NO key
*TEMP.1 Temperature Setting
NO key
*TEMP.2 Temperature Setting
NO key
Service Mode
*SERV Service Mode
NO key
· Select desired mode and press YES
· The MODE key is used as a "Cancel and Return to Measurement Mode" escape key
Table 4-1. Operations overview
Routine Function
Maintenance
Commissioning
Service
(Access to coded entries from the commissioning level)
CALIB
DISP. 1, 2
HOLD
*OUTP
*HOLD
*TEMP. 1, 2
*SERV
Calibration with a standard solution or sample
Read auxiliary data or set message display
Switch hold on/off (when activated)
Adjust the output range
Activate the hold function
Select method of temperature compensation
Fine tune the specialized functions of the transmitter
Chapter
5
5
5
6
4
5
5
NOTE :
All three levels may be separately protected by a password. See Service Code 52 in chapter 5
Service Code table for details on setting passwords.
IM 12D08B02-01E
4-2 Operation
Output hold flag Fail flag
Menu pointer flags
Units
HOLD FAIL
MODE
Main display
Message display
Commissioning function menu
YES NO
ENT
MEASURE
CAL
DISPLAY
HOLD
OUTPUT
SET HOLD
TEMP.
SERVICE
Key prompt flags
Selection keys
YES : Accept setting
NO : Change setting
Adjustment keys
> : Choose digit to adjust
^ : Adjust digit
ENT : Confirm change
Figure 4-1. SC202 operator interface
YES NO MODE
ENT
Broken line indicates area that can be seen through front cover
Commissioning mode access key
Measure/Maintenance mode key
4-2. Explanation of operating keys
MODE key This key toggles between the measuring and maintenance modes. Press once to obtain access to the maintenance function menu.
CALIB
DISP.1
DISP.2 - (Only when second temp. compensation enabled)
HOLD - (only when enabled)
Press again to return to the measuring mode (press twice when hold is activated).
YES/NO keys These are used to select choices from the menu.
YES is used to accept a menu selection.
DATA ENTRY keys (
NO is used to reject a selection, or to move ahead to the next option.
)
is used as a “cursor” key. Each press on this key moves the cursor or flashing digit one place to the right. This is used to select the digit to be changed when entering numerical data.
is used to change the value of a selected digit. Each press on this key increases the value by one unit. The value can not be decreased, so in order to obtain a lower value, increase past nine to zero, then increase to the required number.
When the required value has been set using the > and ^ keys, press ENT to confirm the data entry. Please note that the EXA does not register any change of data until the ENT key is pressed.
* key This is the commissioning mode key. It is used to obtain access to the commissioning menu. This can only be done with the cover removed or opened. Once this button has been used to initiate the commissioning menu, follow the prompts and use the other keys as described above.
IM 12D08B02-01E
Operation 4-3
4-3. Setting passcodes
4-3-1. Passcode protection
In Service Code 52, EXA users can set passcode protection for each one of the three operating levels, or for any one or two of the three levels. This procedure should be completed after the initial commissioning (setup) of the instrument. The passcodes should then be recorded safely for future reference.
When passcodes have been set, the following additional steps are introduced to the configuration and programming operations:
Maintenance
Press MODE key. The display shows 000 and *PASS*
Enter a 3-digit passcode as set in Service Code 52 to obtain access to the Maintenance Mode
Commissioning
Press * key. The display shows 000 and *PASS*
Enter a 3-digit passcode as set in Service Code 52 to obtain access to the Commissioning Mode.
Service
From the commissioning menu, select *SERV by pressing YES key. The display shows 000 and *PASS*
Enter a 3-digit passcode as set in Service Code 52 to obtain access to the Service Mode.
NOTE :
See Service Code 52 for the setting of passcodes.
4-4. Display examples
The following pages show the sequence of button presses and screens displayed when working in some standard configurations. More or less options will be made available by the configuration of some service codes, or by choices made in the commissioning menu.
The following deviations are possible:
Item marked is omitted when switched off in commissioning mode.
Temperature compensation will be displayed dependent on chosen compensation method: NaCl,
TC or matrix.
DISP.2 only appears if a 2nd (different) temperature compensation (*TEMP.2) is set.
W/W % only appears if switched on in service code 55. In display 2 w/w % never appears.
IM 12D08B02-01E
4-4 Operation
4-5. Display functions
Sequence for resistivity function is similar to this conductivity example.
Display Functions
(Sequence for resistivity function equals this conductivity example).
mA
HOLD
YES
μ
S / c m
MODE
YES NO
μ
S / c m
NO
YES (See Calibration menu Chapter 6)
Reference temperature
DISP.1
or
DISP.2
NO
Software release number
YES NO
μ
S / c m
NO
YES
NO
Temperature compensation
NO
YES NO
μ
S / c m
NO
YES
YES NO
μ
S / c m
2nd compensated value
YES NO
μ
S / c m
YES (See Hold menu Chapter 5.1) w/w %
Process temperature
FAIL
MODE
NO
YES NO
ENT
MEASURE
CAL
DISPLAY
HOLD
OUTPUT
SET HOLD
TEMP.
SERVICE
MODE
ENT
Actual cell constant
Uncompensated if
USP is enabled in serv code 57 mA
Current output 1
DISP.1
YES NO
μ
S / c m
NO
YES NO
μ
S / c m
NO
YES NO
μ
S / c m
YES NO
μ
S / c m
NO
NO
YES NO
μ
S / c m
NO
YES NO
μ
S / c m
NO
YES NO
μ
S / c m
NO
YES NO
μ
S / c m
Press YES to fix the selected second line of display
IM 12D08B02-01E
Parameter setting 5-1
5. PARAMETER SETTING
5-1. Maintenance mode
5-1-1. Introduction
Standard operation of the EXA instrument involves use of the Maintenance (or operating) mode to set up some of the parameters.
Access to the maintenance mode is available via the six keys that can be pressed through the flexible window in the instrument front cover. Press the “MODE” key once to enter this dialog mode.
(Note that at this stage the user will be prompted for a passcode where this has been previously set up in service code 52, section 5)
Calibrate : See “calibration” section 6.
Display setting : See “operation” section 4.
Hold Manually switch on/off “hold” (when enabled in commissioning menu). See adjustment procedure 5-2-3.
5-1-2. Manual activation of Hold
YES
FAIL
MODE
NO MODE
ENT
MEASURE
OUTPUT
SET HOLD
TEMP.
SERVICE
MODE
M W .c m
YES NO
NO
NO
NO
CALIBRATE
M W.c m
YES NO
YES
NO
HOLD
M ½ .c m
YES NO
NO
M W.c m
YES NO
YES
HOLD
NO YES
M ½ .c m
MEASURE
IM 12D08B02-01E
5-2 Parameter setting
5-2. Commissioning mode
5-2-1. Introduction
In order to obtain peak performance from the EXA SC202, you must set it up for each custom application.
*OUTP : mA output is set as default to 0-1 mS/cm or 0-19.99 M select for example 5-10 μ S/cm range.
Ω ·cm.
For enhanced resolution in more stable measuring processes, it may be desirable to mA *HOLD : The EXA SC202 transmitter has the ability to “HOLD” the output during maintenance periods. This parameter should be set up to hold the last measured value, or a fixed value to suit the process.
*TEMP.1, 2 : First and second temperature compensation types and values. (see also section 5-2-4)
* NaCl is the default compensation and is used for neutral salt solutions. Strong solutions of salts are compensated, as are process waters and pure, and ultrapure water.
*SERV
* TC temperature coefficient compensation uses a linear temperature compensation factor. This can be set by calibration or configuration.
* Matrix compensation is an extremely effective way of compensation. Choose from standard matrix tables, or configure your own to exactly suit your process.
: This selection provides access to the service menu.
What follows are pictorial descriptions of typical frontplate pushbutton sequences for each parameter setting function. By following the simple YES/NO prompts and arrow keys, users can navigate through the process of setting range, hold and service functions.
IM 12D08B02-01E
5-2-2. Range
MODE
YES NO MODE
ENT
MEASURE
CAL
DISPLAY
HOLD
OUTPUT
SET HOLD
TEMP.
SERVICE
YES NO
NO
YES NO
NO
YES NO
NO
YES mA mA
YES NO
NO
ENT
NO
YES NO
ENT
Parameter setting 5-3
IM 12D08B02-01E
5-4 Parameter setting mA 5-2-3. HOLD
MODE
MEASURE
CAL
DISPLAY
HOLD
OUTPUT
SET HOLD
TEMP.
SERVICE
HOLD
NO
ENT
YES NO
NO
HOLD
ENT
YES NO
NO
YES
YES NO
NO
YES NO
NO
NO
YES NO
YES NO
YES
HOLD
YES NO
HOLD active last measured value.
NO
HOLD
YES
HOLD
ENT
Set HOLD "fixed value"
YES NO
YES
YES NO
YES
IM 12D08B02-01E
Parameter setting 5-5
5-2-4. Temperature compensation
1. Why temperature compensation?
The conductivity of a solution is very dependent on temperature. Typically for every 1 °C change in temperature the solution conductivity will change by approximately 2 %. The effect of temperature varies from one solution to another and is determined by several factors like solution composition, concentration and temperature range. A coefficient ( α ) is introduced to express the amount of temperature influence in % change in conductivity/°C. In almost all applications this temperature influence must be compensated before the conductivity reading can be interpreted as an accurate measure of concentration or purity.
Table 5-1. NaCl-compensation according to IEC 60746-3 with Tref = 25 °C
T Kt α T Kt α T Kt α
25
30
40
50
0
10
20
0.54
0.72
0.90
1.0
1.10
1.31
1.53
1.8 60
1.9 70
2.0 80
--- 90
2.0
2.0
2.1
100
110
120
1.76
1.99
2.22
2.45
2.68
2.90
3.12
2.2
2.2
2.2
2.2
2.2
2.2
2.2
130
140
150
160
170
180
190
200
3.34
3.56
3.79
4.03
4.23
4.42
4.61
4.78
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2. Standard temperature compensation
From the factory the EXA is calibrated with a general temperature compensation function based on a sodium chloride salt solution. This is suitable for many applications and is compatible with the compensation functions of typical laboratory or portable instruments.
A temperature compensation factor is derived from the following equation:
α = K t
- K ref ref
K ref
In which:
α =
(in %/ °C)
T = Measured temperature (°C)
K t
= Conductivity at T
T ref
K ref
= Reference temperature (°C)
= Conductivity at T ref
3. Manual temperature compensation
If the standard compensation function is found to be inaccurate for the sample to be measured, the transmitter can be set manually for a linear factor on site to match the application.
The procedure is as follows:
Take a representative sample of the process liquid to be measured.
2.
3. Measure the conductivity of the sample with the EXA and note the value.
4.
Adjust the display indication to the noted value at the reference temperature.
6.
Insert the conductivity cell into the process again.
4. Other possibilities (section 5-4)
Enter calculated coefficient.
2.
IM 12D08B02-01E
mA mA
5-6 Parameter setting
5-2-5. Temperature compensation selection
MODE
MEASURE
CAL
DISPLAY
HOLD
OUTPUT
SET HOLD
TEMP.
SERVICE
YES NO
NO
YES NO
NO
YES
YES NO
NO
YES
YES NO
NO
YES NO
NO
After briefly displaying
*WAIT* it will be possible to adjust the display reading to the correct value using > ENT keys.
YES
μ S / c m
ENT
ENT
YES NO
NO
YES
TEMP.1
or
TEMP.2
YES NO
NO
YES NO
IM 12D08B02-01E
Parameter setting 5-7
5-2-6. Service code
The figure below shows a typical button sequence to change a setting within the service menu. The specific settings are listed in numerical sequence on the following pages. On the page facing the setting tables are concise explanations of the purpose of the service codes.
MODE
MEASURE
CAL
DISPLAY
HOLD
OUTPUT
SET HOLD
TEMP.
SERVICE
After changing the parameter, the instrument first goes into reset to load the parameter specific default values.
mA mA
YES NO
NO
YES NO
NO
YES NO
NO
YES NO
NO
YES NO
YES
Example: Service Code 01
Select main parameter
for SC
for RES
With the > , , ENT keys
ENT
ENT
ENT
ENT
ENT
ENT
ENT
NO
IM 12D08B02-01E
5-8 Parameter setting
Codes
Don't set or input service code numbers other than the code numbers defined in this manual. Setting an undefined service code may make the transmitter malfunction.
When an undefined service code is input by some accident, push the MODE key and escape from the service level.
5-3-1. Parameter specific functions
Code 01 *SC.RES Choose the required parameter, either conductivity or resistivity. If the parameter is changed the instrument will go into reset to load parameter specific default values, followed by starting measurement. For all other service codes the instrument will return to commissioning mode after the service code setting is finished.
Code 02 *4.ELEC Choose the required sensor type. Normally conductivity and/or resistivity measurements are done with 2-electrode type sensors. At high conductivity ranges, polarization of the electrodes may cause an error in conductivity measurement. For this reason 4-electrode type sensors may be necessary.
Code 03 *0.10xC Enter the factory calibrated cellconstant mentioned on the textplate or on the fixed cable. This avoids the need for calibration. Any value between 0.008 and
50.0 /cm may be entered. The position of the decimal point may be changed according the visual description in the right-handed page of section 5-2-2.
* NOTE : If the actual cell constant is changed after a calibration or if the entered cell constant differs from previous value, then the message “*RESET?” will appear on the second line display. After pressing “YES” the entered value becomes the new nominal and calibrated cell constant. After pressing “NO” the update procedure of the cell constant entry is canceled.
Code 04 *AIR To avoid cable influences on the measurement, a “zero” calibration with a dry sensor may be done. If a connection box (BA10) and extension cable (WF10) are be used, “zero” calibration should be done including this connection equipment.
When using a 4-electrode sensor additional connections are required temporarily Interconnect terminals 13 & 14 with each other and 15 & 16 with each other before making the adjustment. This is necessary to eliminate the capacitive influence of the cables. The links should be removed after this step is completed.
13 14 15 16
Code 05 *POL.CK The EXA SC202 has a polarization check capable of monitoring the signal from the cell for distortion from polarization errors. If there is a problem with the installation or the cell becomes fouled, this will trigger E1. For some application with very low conductivity and long cable runs, this error detection can cause false alarms during operation. Therefore this code offers the possibility to disable/enable this check.
IM 12D08B02-01E
Parameter setting 5-9
Code Display Function
Parameter specific functions
Function detail X Y Z Default values
01 *SC.RES
02 *4.ELEC
03 0.10xC
04
RESET?
*AIR
*START
Select main parameter Conductivity
Select 2/4-EL system 2-Electrode measurement system
Set cell constant
Zero calibration
*”WAIT”
*END
05 *POL.CK
06-09
Polarization check
Resistivity
4-Electrode measurement system
Press NO to step through choice of
Press YES to start, after briefly displaying
“WAIT”, *END will be displayed
Press YES to return to commissioning mode
Polarization check off
Polarization check on
0
1
0
1 multiplying factors on the second display. 0.10xC
0.10xC
1.00xC
10.0xC
100.xC
0.01xC
Press YES to select a factor
Use >, ^, ENT keys to adjust MAIN digits
YES to confirm, NO to cancel
Zero calibration with dry cell connected
Press YES to confirm selection
0
1
0
0
1.000 cm -1
1
Cond.
2-El.
On
* NOTE :
For Code 03: If the actual cell constant is changed after a calibration or if the entered cell constant differs from previous value, then the message “RESET?” will appear on the second line display. After pressing “YES” the entered value becomes the new nominal and calibrated cell constant. After pressing “NO” the update procedure of the cell constant entry is canceled.
For Code 04: The temperature compensation of NaCl should be selected to confirm zero offset after
*AIR operation.
IM 12D08B02-01E
5-10 Parameter setting
5-3-2. Temperature measuring functions
Code 10 *T.SENS Selection of the temperature compensation sensor. The default selection is the Pt1000 Ohm sensor, which gives excellent precision with the two wire connections used. The other options give the flexibility to use a very wide range of other conductivity/resistivity sensors.
Code 11 *T.UNIT Celsius or Fahrenheit temperature scales can be selected to suit user preference.
Code 12 *T.ADJ With the process temperature sensor at a stable known temperature, the temperature reading is adjusted in the main display to correspond. The calibration is a zero adjustment to allow for the cable resistance, which will obviously vary with length. The normal method is to immerse the sensor in a vessel with water in it, measure the temperature with an accurate thermometer, and adjust the reading for agreement.
IM 12D08B02-01E
Parameter setting 5-11
Code Display Function
Temperature measuring functions
Function detail
11
12
*T.UNIT
*T.ADJ
13-19
X Y Z Default values sensor Ω 0
Ni100
Pt100
Ω
Ω
Display in °C or °F °C
°F
Calibrate temperature Adjust reading to allow for cable resistance.
Use >, ^ , ENT keys to adjust value
1
2
3
8k55 NTC) 4
0
1
0 °C
None
IM 12D08B02-01E
5-12 Parameter setting
5-4. Temperature compensation functions
Code 20 *T.R.°C Choose a temperature to which the measured conductivity (or resistivity) value must be compensated. Normally 25°C is used, therefore this temperature is chosen as default value. Limitations for this setting are: 0 to 100 °C.
If *T.UNIT in code 11 is set to °F, default value is 77°F and the limitations are
32 - 212°F.
Code 21 *T.C.1, 2 In addition to the procedure described in section 5-2-4 it is possible to adjust the compensation factor directly. If the compensation factor of the sample liquid is known from laboratory experiments or has been previously determined, it can be introduced here.
Adjust the value between 0.00 to 3.50 % per °C. In combination with reference temperature setting in code 20 a linear compensation function is obtained, suitable for all kinds of chemical solutions.
Code 22 *MATRX The EXA is equipped with a matrix type algorithm for accurate temperature compensation in various applications. Select the range as close as possible to the actual temperature/concentration range. The EXA will compensate by interpolation and extrapolation. Consequently, there is no need for a 100% coverage.
If 9 is selected the temperature compensation range for the adjustable matrix must be configured in code 23. Next the specific conductivity values at the different temperatures must be entered in codes 24 to 28.
Code 23 *T1, T2, T3, Set the matrix compensation range. It is not necessary to enter equal
T4 & T5 °C temperature steps, but the values should increase from T1 to T5, otherwise the entrance will be refused. Example: 0, 10, 30, 60 and 100 °C are valid values for the T1....T5. The minimum span for the range (T1 - T5) is 25 °C.
Code 24-28 *L1xT1 - In these access codes the specific conductivity values can be entered for
5 different concentrations of the process liquid; each one in one specific access code (24 to 28). The table below shows a matrix entering example for 1 - 15%
NaOH solution for a temperature range from 0 - 100 °C.
NOTES :
1. In chapter 11 a table is included to record your programmed values. It will make programming easy for duplicate systems or in case of data loss.
2. Each matrix column has to increase in conductivity value.
3. Error code E4 occurs when two standard solutions have identical conductivity values at the same temperature within the temperature range.
Table 5-2. Example of user adjustable matrix
Matrix
Code 23
Code 24
Code 25
Code 26
Code 27
Code 28
Temperature
Solution 1 (1%)
Solution 2 (3%)
Solution 3 (6%)
Solution 4 (10%)
Solution 5 (15%)
T1...T5
L1
L2
L3
L4
L5
Example
0 °C
31 mS/cm
86 mS/cm
146 mS/cm
195 mS/cm
215 mS/cm
Example
25 °C
53 mS/cm
145 mS/cm
256 mS/cm
359 mS/cm
412 mS/cm
Example
50 °C
76 mS/cm
207 mS/cm
368 mS/cm
528 mS/cm
647 mS/cm
Example
75 °C
98 mS/cm
264 mS/cm
473 mS/cm
692 mS/cm
897 mS/cm
Example
100 °C
119 mS/cm
318 mS/cm
575 mS/cm
847 mS/cm
1134 mS/cm
IM 12D08B02-01E
Parameter setting 5-13
Code Display Function
Temperature compensation functions
23
22
20
21
24
*T.R.°C
*T.C.1
*T.C.2
*MATRX
Set reference temp. Use >, ^, ENT keys to set value
Set temp. coef. 1 Adjust compensation factor if set to TC in section 5-2-5.
Set value with >, ^, ENT keys
Set temp. coef. 2
Select matrix
Adjust compensation factor if set to TC in section 5-2-5.
Set value with >, ^, ENT keys
Choose matrix if set to matrix comp.
*T1 °C (°F) Set temp. range in section 5-2-5, using >, ^, ENT keys
HCl (cation) pure water (0-80 °C)
Ammonia pure water (0-80 °C)
Morpholine pure water (0-80 °C)
HCl (0-5 %, 0-60 °C)
NaOH (0-5 %, 0-100 °C)
User programmable matrix
Enter 1st (lowest) matrix temp. value
*T2..
*T3..
*T4..
*T5..
*L1xT1
*L1xT2
25
26
27
28
*L2xT1
*L3xT1
*L4xT1
*L5xT1
29
Enter conductivity values for lowest
.... concentration
*L1xT5
Concentration 2
Concentration 3
Concentration 4
Concentration 5
Enter 2nd matrix temp. value
Enter 3rd matrix temp. value
Enter 4th matrix temp. value
Enter 5th (highest) matrix temp. value
Value for T1
Value for T2
Value for T5
Similar to code 24
Similar to code 24
Similar to code 24
Similar to code 24
3
4
1
2
5
9
X Y Z Default
25 °C
2.1 % per °C
2.1 % per °C
1 HCI
IM 12D08B02-01E
5-14 Parameter setting mA
5-5. mA output functions
Code 31 *OUTP.F For the SC202 the output may be chosen as linear to input, or configured in a
21 point table to a particular linearization. Enable the table setup in code 31, and configure the table in code 35.
Code 32 *BURN Diagnostic error messages can signal a problem by sending the output signals upscale or downscale (21 mA or 3.6 mA when HART or distributor comm. is non-used, 3.9 mA when HART or distributor comm. is used). This is called upscale or downscale burnout, from the analogy with thermocouple failure signaling of a burned-out or open circuit sensor. The pulse burnout setting gives a 21 mA signal for the first
30 seconds of an alarm condition. After the “pulse” the signal returns to normal.
This allows a latching alarm unit to record the error. In the case of the EXA the diagnostics are extensive and cover the whole range of possible sensor faults.
Code 35 *TABLE The table function allows the configuration of an output curve by 21 steps
(intervals of 5%). The following example shows how the table may be configured to linearize the output with a mA curve.
Table 5-3.
1,000
800
600
400
200
0
0
CONDUCTIVITY (S/cm)
20 40 60
Output in %
80
CONCENTRATION (%)
15
10
5
25
20
0
0 20 40 60
Output in %
80
Fig. 5-1. Linearization of output
Example: 0-25% Sulfuric acid
100
100
Code
Output
4-20 mA
15.2
16.0
16.8
17.6
18.4
19.2
20.0
11.2
12.0
12.8
13.6
14.4
4.0
4.8
5.6
6.4
7.2
8.0
8.8
9.6
10.4
70
75
80
85
90
95
100
45
50
55
60
65
0
5
10
15
20
25
30
35
40
% H
2
SO
4
Service code 55
11.25
12.50
13.75
15.00
16.25
17.50
18.75
20.00
21.25
22.50
23.75
25.00
0.00
1.25
2.50
3.75
5.00
6.25
7.50
8.75
10.00
700
750
800
850
900
950
1000
450
500
550
600
650
0
50
100
150
200
250
300
350
400 mS/cm
Service code 35
655
685
718
735
755
775
791
466
515
555
590
625
0
60
113
180
218
290
335
383
424
Default mS/cm
Concentration Output function is done in de following order:
• Set *OUTP.F. (Service Code 31) to table
• Set the Concentration range in % (Service Code 55)
• Set table values (%output and Conductivity values) in *TABLE (Service Code 35)
IM 12D08B02-01E
Parameter setting 5-15 mA Code Display mA Outputs
30
31 *OUTP.F
32 *BURN
33, 34
35 *TABLE
*0%
*5%
*10%
...
...
*95%
*100%
36-39
Function Function detail X Y mA output functions Linear
Burn function
Table
No burnout
Not used
Output table for mA
Linearization table for mA in 5% steps.
The measured value is set in the main display using the >, ^, ENT keys, for each of the 5% interval steps.
Where a value is not known, that value may be skipped, and a linear interpolation will take place.
2
3
0
1
0
1
Z Default values
0 Linear
0 No Burn.
IM 12D08B02-01E
5-16 Parameter setting
5-6. User interface
Code 50
Code 52
*RET.
*PASS
When Auto return is enabled, the transmitter reverts to the measuring mode from anywhere in the configuration menus, when no button is pressed during the set time interval of 10 minutes.
Passcodes can be set on any or all of the access levels, to restrict access to the instrument configuration.
Code 53 *Err01 to 13 Error message configuration. Two different types of failure mode can be set.
Hard fail gives a steady FAIL flag in the display. A fail signal is transmitted on the mA output when enabled in code 32.
Soft fail gives a flashing FAIL flag in the display. A good example is the dry sensor for a soft fail.
Code 54 *E5.LIM Limits can be set for shorted and open measurement. Dependent on the main
& value to be set (value to be set is the uncompensated conductivity/resistivity value).
Code 55 *% For some applications the measured parameter values may be (more or less) linear to concentration. For such applications it is not needed to enter an output table, but 0 and 100% concentration values directly can be set.
Code 56 *DISP.
Code 57 *USP.
The display resolution is default set to autoranging for conductivity reading. If a fixed display reading is needed, a choice can be made out of 7 possibilities.
For resistivity the default reading is fixed to xx.xx M Ω ·cm.
Automatic checking for compliance with the water purity standard set in USP
(United States Pharmacopeia). For more detailed description see chapter 9.
IM 12D08B02-01E
Parameter setting 5-17
Code Display Function X Y Z Default
User interface
56
55
57
50 *RET. Auto return
51
52 *PASS Passcode
*E6.LIM
*%
*0%
*100%
*DISP.
*USP.
58-59
Auto return to measuring mode Off
Auto return to measuring mode On
Note # = 0 - 9, where Maintenance passcode On
Commissioning passcode Off
1=111, 2=333, 3=777 Commissioning passcode On
4=888, 5=123, 6=957 Service passcode Off
0
1
#
0/1
0
#
54
53 *Err.01
7=331, 8=546, 9=847 Service passcode On
Error setting Polarization too high
*Err.05
*Err.06
*Err.07
*Err.08
*Err.13
*E5.LIM E5 limit setting
Soft/Hard
Temperature sensor open Soft/Hard
Temp. sensor shorted
USP limit exceeded
Soft/Hard
Soft/Hard
Maximum conductivity value
0/1
0/1
0/1
E6 limit setting
Display mA in w/w% mA-range displayed in w/w% off
Display resolution
(Minimum resistivity value)
Minimum conductivity value
(Maximum resistivity value) mA-range displayed in w/w% on
Set 0% output value in w/w%
Set 100% output value in w/w%
Auto ranging display 0
Display fixed to X.XXX μ S/cm or M Ω ·cm 1
Display fixed to XX.XX μ S/cm or M Ω
0
1
·cm 2
Display fixed to XXX.X μ S/cm or M Ω ·cm 3
Display fixed to X.XXX mS/cm or k Ω ·cm 4
Display fixed to XX.XX mS/cm or k Ω ·cm 5
Display fixed to XXX.X mS/cm or k Ω ·cm 6
Display fixed to XXXX mS/cm or k Ω ·cm 7
USP setting Disable the E13 (USP limit exceeded)
Enable the E13 (USP limit exceeded)
0
1
0
#
1
1
1
1
0
1.000
0
0
(2)
0
On
Off
Off
Hard
Hard
Hard
Soft
250 mS
0.004 k
μ
1.000 M
Ω
S
Ω
Off
Auto
Off
IM 12D08B02-01E
5-18 Parameter setting
5-7. Communication setup mA Code 60 *COMM. The settings should be adjusted to suit the communicating device connected to the output. The communication can be set to HART® or to PH201*B distributor
(see Appendix 2).
*ADDR. Select address 00 for point to point communication with 4-20mA transmission.
Addresses 01 to 15 are used in multi-drop configuration (fixed 4mA output).
mA Code 61 *HOUR
*MINUT
*SECND
*YEAR
*MONTH
*DAY
The clock/calendar for the logbook is set for current date and time as reference.
Code 62 *ERASE Erase logbook function to clear the recorded data for a fresh start. This may be desirable when re-commissioning an instrument that has been out of service for a while.
5-8. General
Code 70 *LOAD The load defaults code allows the instrument to be returned to the default set up with a single operation. This can be useful when wanting to change from one application to another.
5-9. Test and setup mode
Code 80 *TEST Not used.
NOTE : Attempting to change data in service code, 80 and above without the proper instructions and equipment, can result in corruption of the instrument setup, and will impair the performance of the unit.
IM 12D08B02-01E
Parameter setting 5-19
Code Display Function
Communication mA mA 61
*ADDR.
*HOUR
*MINUT
*SECND
*YEAR
*MONTH
*DAY
62 *ERASE
63-69
Network address
Clock setup
Erase logbook
Set communication PH201*B On
Communication write enable
Communication write protect
Set address 00 to 15
Adjust to current date and time using
>, ^ and ENT keys
Press YES to clear logbook data
X Y Z Default
2
0
1
00
Write enable
Code Display Function
General
70 *LOAD
71-79
Load defaults Reset configuration to default values
X Y Z Default
Code Display Function
Test and setup mode
80 *TEST Test and setup Not used.
X Y Z Default
IM 12D08B02-01E
Calibration 6-1
6. CALIBRATION
6-1 When is calibration necessary?
Calibration of conductivity/resistivity instruments is normally not required, since Yokogawa delivers a wide range of sensors, which are factory calibrated traceable to NIST standards. The cell constant values are normally indicated on the top of the sensor or on the integral cable. These values can be entered directly in service code 03 (section 5-3-1). If the cell has been subjected to abrasion (erosion or coating) calibration may be necessary. In the next section two examples are given. Alternatively calibration may be carried out with a simulator to check the electronics only.
NOTE :
During calibration the temperature compensation is still active. This means that the readings are referred to the reference temperature as chosen in service code 20 (section 5-4, default 25 °C).
Calibration is normally carried out by measuring a solution with a known conductivity value at a known temperature. The measured value is adjusted in the calibration mode. On the next pages the handling sequence for this action is visualized. Calibration solutions can be made up in a laboratory. An amount of salt is dissolved in water to give a precise concentration with the temperature stabilized to the adjusted reference temperature of the instrument (default 25 °C). The conductivity of the solution is taken from literature tables or the table on this page.
Alternatively the instrument may be calibrated in an unspecified solution against a standard instrument.
Care should be taken to make a measurement at the reference temperature since differences in the type of temperature compensation of the instrument may cause an error.
NOTE :
The standard instrument used as a reference must be accurate and based on an identical temperature compensation algorithm. Therefore the Model SC72 Personal Conductivity Meter of
Yokogawa is recommended.
Typical calibration solutions.
The table shows some typical conductivity values for sodium-chloride (NaCl) solutions which can be made up in a laboratory.
Table 6-1. NaCl values at 25°C (IEC 60746-3)
Weight % mg/kg Conductivity
1
3
5
10
0.05
0.1
0.3
0.5
0.001
0.003
0.005
0.01
0.03
10
30
50
100
300
500
1000
3000
5000
10000
30000
50000
100000
21.4
64.0
106 μ
μ
μ
S/cm
S/cm
S/cm
210 μ S/cm
617 μ S/cm
1.03 mS/cm
1.99 mS/cm
5.69 mS/cm
9.48 mS/cm
17.6 mS/cm
48.6 mS/cm
81.0 mS/cm
140 mS/cm
NOTE :
For resistivity measurement the standard resistivity units of the calibration solution can be calculated as follows:
R = 1000/G k
Example:
Ω ·cm (if G =
0.001 weight %
R = 1000/21.4 = 46.7 k Ω
μ
·cm
S/cm)
IM 12D08B02-01E
6-2 Calibration
6-2. Calibration procedure
MODE
YES NO MODE
ENT
MEASURE
CAL
DISPLAY
HOLD
MODE
YES NO
YES
YES NO
Put the sensor in standard solution. Press YES .
ENT
After the indication is stable, set the value using the > , , ENT key.
ENT
Select the flashing digit with the > key.
Increase its value by pressing the key
When the correct value is displayed, press ENT to enter the change.
After briefing displaying WAIT, the CAL.END message appears.
The calibration is now complete. Put the
sensor back in the process and press YES.
Press the MODE key.
The legend CALIB appears, and the YES/NO key prompt flags flash.
YES NO
ENT
The cell constant is automatically updated after the calibration and the new value can be read on the display as described in section 4.5.
The calculation is as follows: Cell constant in /cm= (Conductivity of calibration solution in mS/cm) x
(Cell resistance in kOhm)
Comparing this calibrated cell constant with the initial nominal cell constant in service code 03 gives a good indication of the stability of the sensor. If the calibrated cell constant differs more than
20% from the nominal cell constant error E3 is displayed.
IM 12D08B02-01E
Calibration 6-3
6-3. Calibration with HOLD active
MODE
YES NO MODE
ENT
MEASURE
CAL
DISPLAY
HOLD
Press the MODE key.
The legend CALIB appears, and the YES/NO key prompt flags flash.
MODE
HOLD
YES NO
YES
HOLD
HOLD
YES NO
HOLD
Put the sensor in standard solution. Press YES .
ENT
After the indication is stable, set the value using the > , , ENT key.
ENT
Select the flashing digit with the > key.
Increase its value by pressing the key
When the correct value is displayed, press ENT to enter the change.
HOLD
HOLD
After briefing displaying WAIT, the CAL.END message appears.
The calibration is now complete. Put the
sensor back in the process and press YES.
HOLD will be displayed. Press NO to turn off
HOLD and return to the measuring mode.
HOLD
YES NO
YES NO
ENT
IM 12D08B02-01E
Maintenance 7-1
7. MAINTENANCE
7-1. Periodic maintenance for the EXA 202 transmitter
The EXA202 transmitter requires very little periodic maintenance. The housing is sealed to IP65 (NEMA
4X) standards, and remains closed in normal operation. Users are required only to make sure the front window is kept clean in order to permit a clear view of the display and allow proper operation of the pushbuttons. If the window becomes soiled, clean it using a soft damp cloth or soft tissue. To deal with more stubborn stains, a neutral detergent may be used.
NOTE :
Never used harsh chemicals or solvents. In the event that the window becomes heavily stained or scratched, refer to the parts list (Chapter 10) for replacement part numbers.
When you must open the front cover and/or glands, make sure that the seals are clean and correctly fitted when the unit is reassembled in order to maintain the housing’s weatherproof integrity against water and water vapour. The measurement otherwise may be prone to problems caused by exposure of the circuitry to condensation.
The EXA instrument contains a lithium cell to support the clock function when the power is switched off. This cell needs to be replaced at 5 yearly intervals (or when discharged). Contact your nearest
Yokogawa service centre for spare parts and instructions.
7-2. Periodic maintenance of the sensor
NOTE :
Maintenance advice listed here is intentionally general in nature. Sensor maintenance is highly application specific.
In general conductivity/resistivity measurements do not need much periodic maintenance. If the EXA indicates an error in the measurement or in the calibration, some action may be needed (ref. chapter
8 troubleshooting). In case the sensor has become fouled an insulating layer may be formed on the surface of the electrodes and consequently, an apparent increase in cell constant may occur, giving a measuring error. This error is:
2 x
Rv
Rcel
x 100 %
where:
Rv = the resistance of the fouling layer
Rcel = the cell resistance
NOTE :
Resistance due to fouling or to polarization does not effect the accuracy and operation of a 4electrode conductivity measuring system. If an apparent increase in cell constant occurs cleaning the cell will restore accurate measurement.
Cleaning methods
1. For normal applications hot water with domestic washing-up liquid added will be effective.
2. For lime, hydroxides, etc., a 5 ...10% solution of hydrochloric acid is recommended.
3. Organic foulings (oils, fats, etc.) can be easily removed with acetone.
4. For algae, bacteria or moulds, use a solution of domestic bleach (hypochlorite).
* Never use hydrochloric acid and bleaching liquid simultaneously. The very poisonous chlorine gas will result.
IM 12D08B02-01E
Troubleshooting 8-1
8. TROUBLESHOOTING
The EXA SC202 is a microprocessor-based analyzer that performs continuous self-diagnostics to verify that it is working correctly. Error messages resulting from faults in the microprocessor systems itself are few. Incorrect programming by the user can be corrected according to the limits set in the following text.
In addition, the EXA SC202 also checks the sensor to establish whether it is still functioning within specified limits.
What follows is a brief outline of some of the EXA SC202 troubleshooting procedures, followed by a detailed table of error codes with possible causes and remedies.
8-1. Diagnostics
8-1-1. Off-line checks
The EXA SC202 transmitter incorporates a diagnostic check of the adjusted cell constant value at calibration. If the adjusted value stays within 80 - 120 % of the nominal value set in service code 03, it is accepted. Otherwise, the unit generates an error (E3). With a HART® communication package it is possible to scroll the calibration data in a logbook function.
The EXA also checks the temperature compensation factor while performing manual temperature compensation as described in section 5.2.5. If the TC factor stays within 0.00% to 3.50% per °C, it is accepted. Otherwise, E2 will be displayed.
8-1-2. On-line checks
The EXA performs several on-line checks to optimize the measurement and to indicate a fault due to the fouling or polarization of the connected sensor. The fault will be indicated by the activation of the FAIL flag in the display.
During measurement the EXA adjusts the measuring frequency to give the best conditions for the actual value being measured. At low conductivity there is a risk of error due to the capacitive effects of the cable and the cell. These are reduced by using a low measuring frequency. At high conductivity the capacitive effects become negligible and errors are more likely to be caused by polarization or fouling of the cell. These errors are decreased by increasing the measuring frequency.
At all values the EXA checks the signal from the cell to search for distortion which is typical of capacitive or polarization errors. If the difference between pulse front and pulse rear is > 20% an error E1 will be displayed and the FAIL flag in the display is activated. In service code 05 it is possible to turn this check on and off.
IM 12D08B02-01E
8-2 Troubleshooting
The following error message table gives a list of possible problems that can be indicated by the EXA.
Table 8-1. Error Codes mA mA
Code Error description Possible cause Suggested remedy
E1 Polarization detected on cell
E2 Temperature coefficient out of limits
(0-3.5%/ºC)
E3 Calibration out of limits
Sensor surface fouled
Conductivity too high
Incorrect field calibration of TC
Clean sensor and calibrate
Replace sensor
Re-adjust
Calibrated value differs more than Check for correct sensor
+/- 20 % of nominal value programmed Check for correct unit ( μ S/cm, in code 03. mS/cm, k Ω ·cm or M Ω ·cm)
E4 Matrix compensation error
E5 Conductivity too high or resistivity too low
(Limits set in service code 54)
E6 Conductivity too low or resistivity too high
(Limits set in service code 54)
E7 Temperature sensor open
Wrong data entered in 5x5 matrix
Incorrect wiring
Internal leakage of sensor
Defective cable
Re-program
Check wiring (3-5)
Replace sensor
Replace cable
Dry sensor
Incorrect wiring
Immerse sensor
Check wiring (3-5)
Defective cable Replace cable
Process temperature too high or too low Check process
Wrong sensor programmed
Incorrect wiring
Check model code sensor
Check connections and cable
E8
(Pt1000 : T > 250°C or 500°F)
(Pt100/Ni100 : T > 200°C or 400°F)
(8k55 : T < -10°C or 10°F)
(PB36 : T < -20°C or 0°F)
Temperature sensor shorted
(Pt1000/Pt100/Ni100 : T < -20°C or 0°F)
(8k55/PB36 : T > 120°C or 250°F)
E9 Air set impossible
E10 EEPROM write failure
E13 USP limit exceeded
E15 Cable resistance influence to temperature exceeds +/- 15°C
Process temperature too high or too low Check process
Wrong sensor programmed Check model code sensor
Incorrect wiring Check connections and cable
Too high zero due to cable capacitance Replace cable
Fault in electronics Try again, if unsuccessful contact Yokogawa
Poor water quality
Cable resistance too high
Corroded contacts
Wrong sensor programmed
E17 Output span too small
E18 Table values make no sense
Incorrect configuration by user
Wrong data programmed
E19 Programmed values outside acceptable limits Incorrect configuration by user
E20 All programmed data lost Fault in electronics
Very severe interference
Check ion exchangers
Check cable
Clean and reterminate
Reprogram
Reprogram
Reprogram
Reprogram
Contact Yokogawa
IM 12D08B02-01E
USP 9-1
9. USP WATER PURITY MONITORING
9-1. What is USP ?
USP stands for United States Pharmacopeia and it is responsible for issuing guidelines for the pharmaceutical industry. Implementing these guidelines is highly recommended for companies wishing to market drugs in the US. This means that USP is important for pharmaceutical companies worldwide. USP recently issued: - USP - recommendations for conductivity measurement. This new USP, aims at the replacement of 5 antiquated laboratory tests by simple conductivity analysis.
9-2. What is conductivity measurement according to USP?
Life would be easy, if the limits for the conductivity of injection water were set to be 1.3 μ S/cm at a reference temperature of 25°C. However, the committee (PHRMA WQC) who made the USP recommendations, could not agree on a simple Sodium Chloride model for water quality determination. Instead, they chose a Chloride-Ammonia conductivity-pH model in water atmospherically equilibrated (CO
2
) at 25 °C.
The objective of the WQC was to find an easy way to establish the water quality, so on-line analysis at process temperature was a necessary requirement. However, if it is not possible to choose one temperature response model to work to, then it is also not possible to choose one temperature compensation algorithm.
We as a manufacturer of analytical equipment do not want to go into the details of whether the limiting conductivity values for water quality are based on the Chloride model or the Ammonia model. Our job is to develop on-line analyzers that make it simple for our customers to meet the water quality that is specified as “stage 1: Conductivity Limit as a Function of Temperature.”
If the water exceeds the limits of stage 1, then it can still be acceptable, but requires the customer to proceed to Stage 2, and possibly Stage 3, to validate the water quality. It is our objective to assure that our customers do not exceed the limits in stage 1 to avoid them having to carry out the complicated laboratory checks in Stages 2 and 3.
9-3. USP in the SC202
1. In SC202 we have defined an Error Code: E13. This is independent of what range the customer is measuring or what temperature compensation method he is using for water quality monitoring. When the display shows E13, then the water quality exceeds the USP limits, and the FAIL flag on the display is activated to signal that the system needs urgent attention.
2. We have introduced uncompensated conductivity in the DISPLAY menu. In the LCD display the user can read the temperature and the raw conductivity to compare his water quality with the USP table.
3. We have kept all the EXA functionality: It is even possible to have the mA Output and Display readings in resistivity units. Most users will have very good water quality and in the resistivity mode they will have better resolution on the recorder or DCS. The readings are simply the reciprocal values of the conductivity values. In the example mentioned above the contact will close at an uncompensated resistivity of 1/1.76 μ S/cm. = 0.568 M Ω ·cm.
IM 12D08B02-01E
9-2 USP
9-4. Setting up SC202 for USP
First enable USP in service code 57. Change the setting from 0 (default) to 1 (enabled).
This activates uncompensated conductivity in the display menu. The E13 feature is also enabled. For
E13 the FAIL flag is triggered when the uncompensated conductivity exceeds the relevant value in the graph.
Fig. 9-1.
Conductivity limit as a function of Temperature
3,5
3
2,5
2
1,5
1
0,5
0
0 25 50 75 100
Temperature in °C
IM 12D08B02-01E
10. SPARE PARTS
See Customer Maintenance Parts List.
Spare Parts 10-1
IM 12D08B02-01E
Appendix 1-1
11. APPENDIX 1
11-1. User setting for non-linear output table (code 31and 35)
Output signal value
% mA
Output 4-20
00 0
00 5
0 10
0 15
0 20
0 25
0 30
00.
4
0 4.8
0 5.6
0 6.4
0 7.2
00.
8
0 8.8
0 35 0 9.6
0 40 10.4
0 45 11.2
0 50 0.
12
0 55 12.8
0 60 13.6
0 65 14.4
0 70 15.2
0 75 0.
16
0 80 16.8
0 85 17.6
0 90 18.4
0 95 19.2
100 20.0
11-2. User entered matrix data (code 23 to 28)
Medium:
Code 23 Temperature
Code 24 Solution 1
Code 25 Solution 2
Code 26 Solution 3
Code 27 Solution 4
Code 28 Solution 5
T1...T5
L1
L2
L3
L4
L5
T1 data T2 data T3 data T4 data T5 data
Medium:
Code 23 Temperature
Code 24 Solution 1
Code 25 Solution 2
Code 26 Solution 3
Code 27 Solution 4
Code 28 Solution 5
T1...T5
L1
L2
L3
L4
L5
T1 data T2 data T3 data T4 data T5 data
IM 12D08B02-01E
1-2 Appendix
11-3. Matrix data table (user selectable in code 22)
Matrix, Solution Temp (°C) Data 1 Data 2 Data 3 Data 4 Data 5
HCL-p (cation) selection 1 0
0 ppb 4 ppb 10 ppb 20 ppb 100 ppb
0.0116 μ S 0.0228 μ S 0.0911
μ S 0.450
10 S 0.0352 μ S 0.565
20 S 0.0550 μ S 0.677
30 S 0.085 μ S 0.787
40 S 0.129 μ S 0.897
μ S 0.220 μ S 1.008
μ S 0.302 μ S 1.123
μ S 0.406 μ S 1.244
μ S 0.533 μ S 1.373
Ammonia-p selection 2 0
0 ppb 2 ppb 5 ppb 10 ppb 50 ppb
0.0116 μ S 0.0229 μ S 0.0966
μ S 0.423
10 S 0.0337 μ S 0.535
20 S 0.0512 μ S 0.648
30 S 0.0788 μ S 0.758
μ S 0.149 μ S 0.866
μ S 0.203 μ S 0.974
μ S 0.278 μ S 1.090
μ S 0.377 μ S 1.225
μ S 0.501 μ S 1.393
Morpholine-p selection 3 0
0 ppb 20 ppb 50 ppb 100 ppb 500 ppb
0.0116 μ S 0.0272 μ S 0.0963
μ S 0.288
10 S 0.0402 μ S 0.431
20 S 0.0584 μ S 0.592
30 S 0.0851 μ S 0.763
μ S 0.181 μ S 0.938
μ S 0.234 μ S 1.12
μ S 0.306 μ S 1.31
μ S 0.403 μ S 1.52
μ S 0.528 μ S 1.77
Hydrochloric Acid 1% 2% 3% 4% 5% selection 4 0
15
65 mS
91 mS
125 mS
173 mS
179 mS
248 mS
229 mS
317 mS
273 mS
379 mS
30
45
60
114 mS
135 mS
159 mS
217 mS
260 mS
301 mS
313 mS
370 mS
430 mS
401 mS
474 mS
549 mS
477 mS
565 mS
666 mS
Sodium Hydroxide 1% 2% 3% 4% 5%
25
50
75
100
53 mS
76 mS
97.5 mS
119 mS
101 mS
141 mS
182 mS
223 mS
145 mS
207 mS
264 mS
318 mS
185 mS
268 mS
339 mS
410 mS
223 mS
319 mS
408 mS
495 mS
IM 12D08B02-01E
Appendix 1-3
11-4. Sensor Selection
11-4-1. General
The inputs of the EXA transmitter are freely programmable for ease of installation. Standard 2-electrode type sensors with a cell constant of 0.100/cm and a Pt1000 temperature sensor, need no special programming. The EXA indicates a fault with a signal in the display field if there is a mismatch of sensors in the connection.
11-4-2. Sensor selection
The EXA SC202 is pre/programmed to accept standard 2-electrode sensors with a Pt1000 temperature sensor. The EXA is universally compatible with all 2- and 4-electrode type of sensors with a cell constant within the range of 0.008/cm to 50.0/cm.
11-4-3. Selecting a temperature sensor
The EXA SC202 reaches its highest accuracy when used with a Pt1000 temperature sensor. This may influence the choice of the conductivity/resistivity sensor, as in most cases the temperature sensor is integrated in the conductivity/resistivity sensor.
11-5. Setup for other functions mA • Current Outputs
Transmission signals for the measured parameters can be set up in service codes 30-39.
• Diagnostic checks
Polarization check and checks on the calibrated cell constant and the adjusted Temperature
Coefficient, are included in the EXA SC202.
mA • Communications
The proprietary HART® communication link allows remote configuration and data retrieval through the PC202 communication package. This is an excellent tool for the maintenance engineer, quality engineer or plant manager. Service codes 60 - 69 are used to set up the communications.
• Logbook
In combination with the communications link, a “logbook” is available to keep an electronic record of events such as error messages, calibrations and programmed data changes. By reference to this log, users can for instance easily determine maintenance or replacement schedules.
Note:
On the pages Appendix 1-4 & 1-5 a reference list for the configuration of the SC202 is shown.
IM 12D08B02-01E
1-4 Appendix
11-6. User setting table mA
FUNCTION SETTING DEFAULTS USER SETTINGS
Parameter specific functions
01 *SC.RES 0
02 *4.ELEC 0
SC
2-Elec.
03 *0.10xC 0.10xC Factor
04 *AIR
1.000
05 *POL.CK 1
/cm
On
Temperature measuring functions
10 *T.SENS 0
11 *T.UNIT 0
12 *T.ADJ
Temperature compensation functions
Pt1000
°C
None
20 *T.R.°C
21 *T.C.1
25
2.1
*T.C.2 2.1
22 *MATRX
23 *T1°C
24 *L1xT1
25 *L2xT1
26 *L3xT1
27
28
*L4xT1
*L5xT1 mA outputs
T. range
Cond. C1
Cond. C2
Cond. C3
Cond. C4
Cond. C5
°C
%/°C
%/°C
None, see 5-2-5
See sep. table, 11-2
See sep. table, 11-2
See sep. table, 11-2
See sep. table, 11-2
See sep. table, 11-2
See sep. table, 11-2
31 *OUTP.F 0
32 *BURN 0
35 *TABLE 21 pt table see code 31, 11-1
IM 12D08B02-01E
mA mA
User Interface
50 *RET
52 *PASS
1
0.0.0
53 *Err.01 1
*Err.05 1
*Err.06 1
*Err.07 1
*Err.08 1
*Err.13 0
On
54 *E5.LIM 250 mS
(0.004) k Ω
*E6.LIM 1.000 μ S
(1.0) M Ω
0
100% 100.0
Off
56 *DISP
57 *USP
0
(2)
0
Auto ranging (SC)
(xx.xxM
Off
Ω ·cm) (RES)
Communication
60 *COMM. 1.0
*ADDR. 00
61 *HOUR
62 *ERASE
00
General
70 *LOAD
Test and setup mode
80 *TEST
Appendix 1-5
IM 12D08B02-01E
1-6 Appendix mA mA
11-7. Error codes
Code Error description Possible cause Suggested remedy
E1 Polarization detected on cell
E2 Temperature coefficient out of limits
(0-3.5%/ºC)
E3 Calibration out of limits
Sensor surface fouled
Conductivity too high
Incorrect field calibration of TC
Clean sensor
Replace sensor
Re-adjust
Calibrated value differs more than Check for correct sensor
+/- 20 % of nominal value programmed Check for correct unit ( μ S/cm, in code 03. mS/cm, k Ω ·cm or M Ω ·cm)
E4 Matrix compensation error
E5 Conductivity too high or resistivity too low
(Limits set in service code 54)
E6 Conductivity too low or resistivity too high
(Limits set in service code 54)
E7 Temperature sensor open
Wrong data entered in 5x5 matrix
Incorrect wiring
Internal leakage of sensor
Defective cable
Re-program
Check wiring (3-6)
Replace sensor
Replace cable
Dry sensor
Incorrect wiring
Immerse sensor
Check wiring (3-6)
Defective cable Replace cable
Process temperature too high or too low Check process
Wrong sensor programmed
Incorrect wiring
Check model code sensor
Check connections and cable
(Pt1000 Ω : T > 250°C or 500°F)
(Pt100 Ω /Ni100 Ω : T > 200°C or 400°F)
(8k55 : T < -10°C or 10°F)
(PB36 : T < -20°C or 0°F)
E8 Temperature sensor shorted Process temperature too high or too low Check process
(Pt1000 Ω /Pt100 Ω /Ni100 Ω : T < -20°C or 0°F) Wrong sensor programmed Check model code sensor
(8k55/PB36 : T > 120°C or 250°F)
E9 Air set impossible
E10 EEPROM write failure
Incorrect wiring
Too high zero due to cable capacitance
Fault in electronics
Check connections and cable
Replace cable
Try again, if unsuccessful contact Yokogawa
E13 USP limit exceeded
E15 Cable resistance influence to temperature exceeds +/- 15°C
Poor water quality
Cable resistance too high
Corroded contacts
Wrong sensor programmed
E17 Output span too small
E18 Table values make no sense
Incorrect configuration by user
Wrong data programmed
E19 Programmed values outside acceptable limits Incorrect configuration by user
E20 All programmed data lost Fault in electronics
E21 Checksum error
Very severe interference
Software problem
Check ion exchangers
Check cable
Clean and reterminate
Reprogram
Reprogram
Reprogram
Reprogram
Contact Yokogawa
Contact Yokogawa
IM 12D08B02-01E
Appendix 1-7 mA
11-8. Device Description (DD) menu structure
The Device Description (DD) is available from Yokogawa or the HART foundation. An example is shown below of the ON LINE menu structure. This manual makes no attempt to explain the operation of the
Hand Held Terminal (HHT). For detailed operating instructions, refer to the HHT user’s manual and the on-line help structure. For menu structure of HHT 375, see next page.
Level 1 menu Level 2 menu Level 3 menu Level 4 menu Level 5 menu
Process variab.
Process value
Second process value
Uncomp. process val.
Weight percentage
Temperature
% of output range
Diag/Service
Status
Hold
Logbook
Error status
Hold on/off
Hold enable/disable
Hold type
Hold value
Logbook conf.
Logbook 1
Logbook 2
Event1...event64
Rec.1...50
Rec.1...50
Basic Setup Tag
Device informat.
Date
Descriptor
Message
Write protect
Manufacture device id
Detailed Setup Param. Specific.
ON LINE MENU
Device setup
Primary value
Analog output
Lower rangeval.
Upper rangeval.
Review
Temp. Specific.
Temp. compens.
Output function
User Interface
Process unit
2 or 4 electrodes
Nominal CC
CC after calibration
Polarization check
Temp.sensor
Temp. unit
Reference temp
Temp. compens.1
TC1 percentage
Temp. Compens.2
TC2 percentage
Matrix selection
Matrix table mA function
Burn function mA-Table
Error programming
Display
Matrix temp. 1...5
Matrix1_1..5_5
Table 0%...100%
Error 1...Error 13
Auto return
E5 limit
E6 limit
Weight 0%
Weight 100%
Display format
USP
Passcode Maintenance
Commissioning
Service
Model
Manufacturer
Distributor
Tag
Descriptor
Message
Date
Device id
Write protect
Universal revision
Transmitter revision
Software revision
Hardware revision
Polling address
Req. preambles
IM 12D08B02-01E
1-8 Appendix
Menu structure for HHT 375 shown below.
ON LINE MENU Level 1 menu
1. Device setup
2. PV
3. AO1
4. LRV
5. URV
1. Process variables
Note:
“2. PV” means
Primary value
“3. AO1” means
Analog output
“4. LRV” means
Lower rangeval
“5. URV” means
Upper rangeval
2. Diag/Service
3. Basic setup
4. Detailed setup
Level 2 menu
1. PV
2. Uncomp
3. Temp
4. PV % rnge
Level 3 menu Level 4 menu
Note:
“Uncomp” means uncompensated value.
“PV % rnge” means % of output range.
1. Status
2. Hold
3. Logbook
1. Hold status
2. Hold fnc.
3. Hold type
1. Logbook conf.
2. Logbook1
3. Logbook2
4. Loop test
1. Tag
2. Device information
1. Param. specific
2. Temp. specific
3. Temp. compensation
1. Date
2. Descriptor
3. Message
4. Write protect
5. Manufacturer
6. Dev id
1. PV unit
2. Electrodes
3. CC nom
4. CC act
5. Pol. check
1. Temp. sens
2. Temp. unit
1. Ref. Temp
2. TC1 type
3. TC2 type
4. Matrix table
1. Powerup
2. Powerdwn
3. Defaults
4. Lg. Erased
5. Low range
6. High range
7. Hold on
8. Hold off
9. Error on
Error off
Temp. adj
Cell const
Air cal
Calibrate
Ref. temp
Temp. coef1
Matrix
Temp. coef2
Level 5 menu
4. Output function 1. mA func.
2. Burn func.
3. mA-table
5. User interface 1. Error prog.
2. Display
5. Review 1. Model
2. Manufacturer
3. Distributor
4. Tag
5. Descriptor
6. Message
7. Date
8. Dev id
9. Write protect
Universal rev
Fld dev rev
Software rev
Hardware rev
Poll addr
Num req preams
(Note):
HART protocol DD files can be downloaded by following URL.
http://www.yokogawa.com/an/download/an-dl-fieldbus-001en.htm
Err.1···Err.13
1. Auto. Ret
2. E5 lim.
3. E6 lim.
4. Percent
5. Fmt
6. USP
7. Passcodes 1. Maintenance
2. Commissioning
3. Service
Note:
“Fmt” means displayed decimal point.
IM 12D08B02-01E
Appendix 2-1
12. APPENDIX 2
12-1. Preface
Feasible combinations of the SC202G conductivity transmitters with different styles of the PH201G distributor are listed in the table below. The distributor has the usual distributor functions (supply power to transmitter, receive current output from transmitter, and provide analog output) as well as contact output functions (maintenance, wash and fail status signals). Since the two transmitters provide different digital signals to control the distributor contact outputs, two distributor styles are provided for compatibility. The
SC202G is not intrinsically safe (explosionproof), so never install it in a hazardous area.
Conductivity transmitter
SC202G
Use of Distoributor PH201G
No use of contact output Use of contact output
Style A & Style B possible Only Style B possible
Refference
Non-Explosionproof type
T1.eps
For information about instruments related to the SC202G, SC202S, refer to the following Instruction
Manuals.
Manual Name
Conductivity Sensor
PH201G distributor (Style B)
SDBT disributor
SDBS disributor
Attachment rack instrument
IM No.
IM 12D08F03-02E
IM 12D08G02-01E
IM 12D08G03-01E
IM 19B01E04-02E
IM 01B04T01-02E
IM 01B04T02-02E
IM 1B4F2-01E
Instruments mentioned
SC4AJ
SC8SG
SC210G
PH201G (Style B) Distributor
SDBT
SDBS
Instruments for rack attachment
IM 12D08B02-01E
2-2 Appendix
12-2. Wiring diagrams
1. Example of Non-Explosionproof System
(a) SC210G-A or SC210G-B
SC210G–A, SC210G–B
Conductivity sensor
*1
T1
T2
T1
T2
C1
C2
C1
C2
11
12
13
14
15
16
SC202G
Conductivity transmitter
12
13
14
15
16 ature sensor
Electrode
+
–
G
*2
Ground
*3 (100 Ω or less)
PH201G (Style B)
Dedicated distributor for EXA202
A(
B (
+
–
)
) b a d c
F
H
C
D
+
–
+
–
Output
(1 to 5V DC)
Output
(1 to 5V DC)
HOLD FAIL
Relay contacts
*2
SDBT distributor
1 (
2 (
+
– )
)
F
H
A
B
+
–
+
–
Output
(1 to 5V DC)
Output
(1 to 5V DC)
F08.EPS
(b) SC4AJ, SC8SG
SC4AJ, SC8SG
Conductivity sensor
*1
11
12
13
14
15
16
SC202G
Conductivity transmitter
11
12
13
14
15
16
Temperature
sensor
Conductivity
sensor
*1 : This cable is specified by the additional code of an conductivity sensor.
*2 : Use a two-conductor shielded cable of OD 6 to 12mm.
The cable length is : Max. 2000m (also the minimum operating voltage of conductivity
transmitter must be obtained)
*3 : Conduct grounding without fail on the conductivity transmitter
(Grounding reistance : 100 ½ or less)
F09.EPS
2. Example of Intrinsically Safe Explosionproof System
(a) SC210G-A or SC210G-B
SC210G-A,SC210G-B
Conductivity sensor
*1
T1
T2
T1
T2
C1
C1
C2
C2
11
12
13
14
15
16
SC202S
Conductivity transmitter
11
12
13
14
15
16
Temperature sensor
Electrode
+
-
G
*2
Safety Barrier Distributor
Output
Ground to earth
*1: This cable is specified by the additional code of an conductivity sensor.
*2: Use two-wire cable with OD (Outside Diameter) of 6 to 12 mm.
(b) SC4AJ, SC8SG
SC4AJ, SC8SG
Conductivity sensor
*1
F007-1.eps
11
12
13
14
15
16
SC202S
Conductivity transmitter
11
12
13
14
15
16
Temperature
sensor
Conductivity
sensor
*1 : This cable is specified by the additional code of an conductivity sensor.
F09.EPS
IM 12D08B02-01E
Appendix 2-3
Cables, terminals and glands
The SC202 is equipped with terminals suitable for the connection of finished cables in the O.D. range:
6 to 12 mm. The glands will form a tight seal on cables with an outside diameter in the range of 6 to 12 mm. Requirement of connecting with external instruments shown below.
Crimp contact
for cable
Usable contact
Torque for fixing
Example of crimp contact *
Terminal for pin cable terminal
Pin-shaped crimp contact with sleeve insulator max. 2.5 mm
0.5 N m or less
Weidmuller Co., Ltd. made:
H0.34/10, H0.5/12, H1/12, H1.5/12S
Screw terminal (option /TB)
Ring-shaped or fork-shaped crimp contact
Crimp contact shown as the figures under this table, which meets M3 screw
1.35 N m (recommended)
JST, Mfg. Co., Ltd. made:
VD1.25-3 (Ring shape),
VD1.25-S3A (Fork shape)
* Note: Other crimp contact may be required , depending on core-cable diameter .
T3.2E.eps
Pin-shaped terminal Ring-shaped terminal Fork-shaped terminal
F3.7.EPS
Connection terminal shown below when /TB option specified.
-
11 13 15
+
G 12 14 16
IM 12D08B02-01E
2-4 Appendix
12-3. Sensor wiring
Refer to figure 12-1, which includes drawings that outline sensor wiring. The EXA SC202 can be used with a wide range of commercially available sensor types if provided with shielded cables, both from
Yokogawa and other manufacturers. The sensor systems from Yokogawa fall into two categories, the ones that use fixed cables and the ones with separate cables.
To connect sensors with fixed cables, simply match the terminal numbers in the instrument with the identification numbers on the cable ends. For details, refer to corresponding IMs.
14
15
16
11
12
13
Temperature
Electrode
11
12
13
14
15
16
Temperature
Electrode
SC4AJ Conductivity Sensor
(two-electrode type)
SC8SG Conductivity Detector
(two-electrode type, four-electrode type)
14
15
16
11
12
13
Temperature
Electrode
SC210G Conductivity Detector
(two-electrode type)
Figure 12-1. Sensor wiring diagrams
IM 12D08B02-01E
Appendix 2-5
12-4. Supplement of parameter setting
12-4-1. Set cell constant (service code 03)
Code 3 *0.10xC First select a multiplying factor, and then set the constant in consideration of this factor. The position of the decimal point can be selected after the first digit has been set
(when the decimal point is flashing).
*How to enter the cell constant
(1) In the case that the only cell constant is mentioned on the text plate of the sensor (SC211G,
SC8SG, SC4AJ). How to enter the cell constant of 0.0195 /cm: Select *0.01xC on the message
display, and then enter the value of 1.950 on the main display.
(2) In the case that the deviation of a nominal cell constant (± X.X%) is mentioned on the text plate
of the sensor (SC210G).
When the nominal cell constant is 5 /cm and the deviation (CORR.% = -1.1) is mentioned:
The cell constant to be entered is calculated as follows:
5 + 5 x (-1.1/100) = 4.945
How to enter the cell constant of 4.945 /cm:
Select *10.0xC on the message display, and then enter the value of 0.495 (rounded to three
decimal places) on the main display. (The first digit in the constant setting only accepts 1 or 2.)
12-4-2. Temperature sensor (service code 10)
Code 10 *T.SENS Selection of the temperature compensation sensor. The default selection is the
PT1000 sensor, which gives excellent precision with the two wire connections used.
The other options give the flexibility to use a very wide range of other conductivity/ resistivity sensors. The temperature sensors for the applicable conductivity sensors are as follows. According to the conductivity sensor used, select the appropriate temperature sensor.
* SC210G
* SC211G
* SC8SG
* SC4AJ
PB36NTC
Pt1000 Ω
Pt1000 Ω
Pt1000 Ω
Code Display Function Function detail X Y Z Default values
Temperature measuring functions
10 *T.SENS Temperature Ω
Ni100 Ω
(PB36NTC)
Pt100 Ω
8k55 Ω NTC) 4
2
3
0 0 Pt1000 Ω
1
12-4-3. Automatic return (service code 50)
If no key is operated for 10 minutes in any mode other than measurement mode or after 10 minutes in
Hold status, Auto-Return (factory setting: On (1) in service code 50) will be activated to return the transmitter to measurement mode. To disable Auto-Return, set the service code 50 to Off (0).
WARNING
When stopping auto-return function, the transmitter doesn't automatically return to measurement mode. Take care of returning measurement mode for re-measurement.
IM 12D08B02-01E
2-6 Appendix
12-4-4. Error setting (service code 53) message
Two different types of failure mode namely, Hard fail and Soft fail can be set.
Hard fail gives a steady FAIL flag in the display. When the distributor PH201G
(Style B) is used and its communication is enabled in Service Code 60, the fail contact of PH201G (Style B) is closed. A fail signal is transmitted on the mA output when enabled in code 32.
Soft fail gives a flashing FAIL flag in the display. In this case the fail contact of
PH201G (Style B) is not closed. A good example is the dry sensor for a soft fail.
A warning that the regular maintenance is due, may not be required to shut down the measurement.
In addition the hold contact of PH201G (Style B) can be activated as it has nothing to do with the setting of Hard or Soft fail.
12-4-5. E5 and E6 setting (service code 54)
Code 54 *E5.LIM & *E6.LIM
Limits can be set for shorted and open measurement. Dependent on the main parameter chosen in code 01, the EXA will ask for a resistivity or conductivity value to be set (value to be set is the uncompensated conductivity/resisitivity value). On the parameter setting screen, you should ignore the unit such as [/cm] and [.cm].
Example: When E5LIM is 250 mS [/cm] and the detector has a cell constant of 10 cm -1 then 250 mS x 10 cm -1 = 2500 mS/cm.
12-4-6. Communication with PH201G (style B) distributor (service code 60)
This communication is a one-way to PH201G (Style B) distributor, a power supplier for the EXA 202 transmitters.
The PH201G (Style B) receives a current signal (4-20 mA DC) and a digital signal superimposed on the
DC signal.
In other words, the PH201G (Style B) provides a measurement signal, a hold-contact signal and a failcontact signal.
The communication with PH201G (Style B) is set in Service code 60.
Code 60 *COM When used with our PH201G (Style B) you can enable or disable contact outputs, namely, Fail contact and Hold contact. The PH201G (Style B) can output Hold contact and Fail contact signals. You can set Service Code 53 to "0" for "soft fail" to disable
Fail contact output. When you set Service Code 53 to "1" for "hard fail", set Service
Code 60 to "2.0" to enable Fail contact output of PH201G (Style B), or set Service
Code 60 to "0.1" to disable Fail contact output of PH201G (Style B).
Function detail X Y Z Default values Code Display Function
Communication
60 *COMM. Communication Set HART communication Off
Set HART communication On
Set communication PH201G*B On
NA
NA
0 1.0
1
2
0
On
1
60.eps
IM 12D08B02-01E
Appendix 3-1
13. APPENDIX 3 QUALITY INSPECTION
13-1. SC202G 2-Wire Conductivity Transmitter
Quality
Inspection
Standards
SC202G, SC202SJ
2-Wire Conductivity Transmitter
1. Scope
This inspection standard applies to the SC202/SC202SJ 2-Wire Conductivity Transmitter.
2.1 Insulation resistance test
2.2 Current output test
2.3 Temperature indication check
2.4 Resistance (conductivity) check
3. Inspection Methods, Standards and Conditions z
Connect the testing circuit as shown in Figure 1. Allow the instrument to warm up for at least
5 minutes before conducting the tests. For the connections for the insulation resistance test, follow the instructions in Section 3.1. z z
Performance tests should be done in the inspection mode where the tests from Section 3.2 through Section 3.4 take place in sequence and cannot be retraced. If the reconfirmation of a test is needed, turn off the power to the transmitter, turn on the power again, and enter the inspection mode to restart the tests.
Set the equipment as follows.
Decade resistance box 1 (temperature): 960.9 :
Decade resistance box 2 (conductivity): 10 :
DC source: 24 VDC
3.1 Insulation Resistance Test
As for the PH202G, follow the instructions below.
(1) Apply 500 V DC between the power supply terminals shorted together (+ and –) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
(2) Apply 500 V DC between the input terminals shorted together (11 to 16) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
As for the PH202SJ, follow the instructions below.
(1) Apply 125 V DC between the power supply terminals shorted together (+ and –) and the earth terminal (G). The insulation resistance must be 9.5 M Ω or greater.
(2) Apply 125 V DC between the input terminals shorted together (11 to 16) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
3.2 Current Output Test
<Test>
(1) Enter Service Code 87 and then password 070.
(2) When the message display shows “*HIF”, press the [YES] key.
(3) Press the [ENT] key. (The date in day-month-year (last 2 digits) order will appear.)
(4) Press the [ENT] key. (The time in hour-minute-second order will appear.)
(5) Press the [ENT] key.
(6) When the message display shows “4 (mA),” the output current must be within the range shown in Table 1.
(7) After confirmation, press the [ENT] key.
(8) To skip the current output if not needed to be checked, just press the [ENT] key.
QIS 12D08B02-01E
1st Edition: Feb. 2001(YK)
6th Edition: Mar. 2007(YK)
IM 12D08B02-01E
3-2 Appendix
2/3
(9) After the test at 20 mA, press the [ENT] key twice.
Table 1
Current output (mA) Current output (mA DC)
±0.02
±0.02
(1) Check that the temperature sensor type indicated on the message display is “Pt1000.”
(2) Change the value of the decade resistance box 1 (temperature) as shown in Table 2 and check the data display. The temperature value on the data display must be within the range shown in Table 2.
(3) Press the [ENT] key until the message display shows “8k55.”
(4) Press the [ENT] key. A “*WAIT” message will flash.
Table 2
Decade box 1 resistance ( : ) Data display (°C)
1721.6
1904.6 (*)
75
±0.3
240 ±0.3
(*) This item is checked under measurement mode.
3.4 Resistance (Conductivity) Indication Check
(1) Check that in the message display “*WAIT” has disappeared and instead “RES.1” appears.
(2) Set decade resistance box 2 to 10 : and check the data display. The resistance must be within the range shown in Table 3.
(3) Press the [ENT] key. The message display will show “RES.2.”
(4) Set decade resistance box 2 to 100 : and check the data display. The resistance must be within the range shown in Table 3.
(5) Press the [ENT] key. The message display will show “RES.3.”
(6) Set decade resistance box 2 to 1 k : and check the data display. The resistance must be within the range shown in Table 3.
(7) Press the [ENT] key. The message display will show “RES.4.”
(8) Set decade resistance box 2 to 10 k : and check the data display. The resistance must be within the range shown in Table 3.
(9) Press the [ENT] key. The message display will show “RES.5.”
(10) Set decade resistance box 2 to 100 k : and check the data display. The resistance must be within the range shown in Table 3.
(11) Press the [ENT] key. The message display will show “READY.”
(12) Press the [ENT] key to restart the transmitter.
This completes all the tests.
Table 3
Message display
RES.1
RES.2
RES.3
RES.4
RES.5
Decade box 2 resistance Data display
10 : 10.00
100 : 100.0
1 k : 1.000
10 k : 10.00
100 k : 100.0
QIS 12D08B02-01E
IM 12D08B02-01E
100 :
SC202G, SC202SJ
+
SUPPLY SENSOR
G 11 12 13 14 15 16
DC
+
Milli-
Note 1
+ -
DC source
24V DC
Ground
Decade
Box 1
Decade
Box 2
Note 1: Cable connected to sensor input should be conductivity detector cable of length 2.1 ±0.1 m. Connect pins 13 and 14, also 15 and 16, to Decade box 2 terminals. Use shielded cable, and connect shield to pin 14.
Figure 1 Testing Circuit and Test Equipment
Appendix 3-3
3/3
QIS 12D08B02-01E
IM 12D08B02-01E
3-4 Appendix
IM 12D08B02-01E
Appendix 3-5
13-2. SC202S 2-Wire Conductivity Transmitter
Quality
Inspection
Standards
SC202S
2-Wire Conductivity Transmitter
1. Scope
This inspection standard applies to the SC202
□
2-Wire Conductivity Transmitter.
2.1 Insulation resistance test
* 2.2 Dielectric strength test
2.3 Current output test
2.4 Temperature indication check
2.5 Resistance (conductivity) check
Note: Items marked with an asterisk (*) may only be confirmed by a test certificate.
3. Inspection Methods, Standards and Conditions z
Connect the testing circuit as shown in Figure 1. Allow the instrument to warm up for at least
5 minutes before conducting the tests. For the connections for the insulation resistance test, follow the instructions in Section 3.1 and for the connections for the dielectric strength test, follow the instructions in Section 3.2. z z
Performance tests should be done in the inspection mode where the tests from Section 3.3 through Section 3.5 take place in sequence and cannot be retraced. If the reconfirmation of a test is needed, turn off the power to the transmitter, turn on the power again, and enter the inspection mode to restart the tests.
Set the equipment as follows.
Decade resistance box 1 (temperature): 960.9 :
Decade resistance box 2 (conductivity): 10 :
DC source: 24 VDC
3.1 Insulation Resistance Test
(1) Apply 500 V DC between the power supply terminals shorted together (+ and –) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
(2) Apply 500 V DC between the input terminals shorted together (11 to 16) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
3.2 Dielectric strength test
Apply 600 V AC, an AC voltage of substantially sinusoidal waveform with a frequency of 50 Hz or 60 Hz, between the terminals shown below, for at least 2 seconds. The insulation must withstand this voltage. (The sensed current should be 10 mA.)
(1) Between the power supply terminals shorted together (+ and –) and the earth terminal (G)
(2) Between the input terminals shorted together (11 to 16) and the earth terminal (G)
(3) Between the input terminals shorted together (11 to 16) and the power supply terminals shorted together (+ and –)
3.3 Current Output Test
<Test>
(1) Enter Service Code 87 and then password 070.
(2) When the message display shows “*HIF”, press the [YES] key.
QIS 12D08B02-21E
1st Edition: Mar. 2007(YK)
IM 12D08B02-01E
3-6 Appendix
2/3
(3) Press the [ENT] key. (The date in day-month-year (last 2 digits) order will appear.)
(4) Press the [ENT] key. (The time in hour-minute-second order will appear.)
(5) Press the [ENT] key.
(6) When the message display shows “4 (mA),” the output current must be within the range shown in Table 1.
(7) After confirmation, press the [ENT] key.
(8) To skip the current output if not needed to be checked, just press the [ENT] key.
(9) After the test at 20 mA, press the [ENT] key twice.
Table 1
Current output (mA) Current output (mA DC)
±0.02
±0.02
(1) Check that the temperature sensor type indicated on the message display is “Pt1000.”
(2) Change the value of the decade resistance box 1 (temperature) as shown in Table 2 and check the data display. The temperature value on the data display must be within the range shown in Table 2.
(3) Press the [ENT] key until the message display shows “8k55.”
(4) Press the [ENT] key. A “*WAIT” message will flash.
Table 2
Decade box 1 resistance ( : ) Data display (°C)
-10
1289.8
1721.6
1904.6 (*) 240 ±0.3
(*) This item is checked under measurement mode.
3.5 Resistance (Conductivity) Indication Check
(1) Check that in the message display “*WAIT” has disappeared and instead “RES.1” appears.
(2) Set decade resistance box 2 to 10 : and check the data display. The resistance must be within the range shown in Table 3.
(3) Press the [ENT] key. The message display will show “RES.2.”
(4) Set decade resistance box 2 to 100 : and check the data display. The resistance must be within the range shown in Table 3.
(5) Press the [ENT] key. The message display will show “RES.3.”
(6) Set decade resistance box 2 to 1 k : and check the data display. The resistance must be within the range shown in Table 3.
(7) Press the [ENT] key. The message display will show “RES.4.”
(8) Set decade resistance box 2 to 10 k : and check the data display. The resistance must be within the range shown in Table 3.
(9) Press the [ENT] key. The message display will show “RES.5.”
(10) Set decade resistance box 2 to 100 k : and check the data display. The resistance must be within the range shown in Table 3.
(11) Press the [ENT] key. The message display will show “READY.”
(12) Press the [ENT] key to restart the transmitter.
This completes all the tests.
QIS 12D08B02-21E
IM 12D08B02-01E
Appendix 3-7
3/3
Table 3
Message display
RES.1
RES.2
RES.3
RES.4
RES.5
Decade box 2 resistance Data display
10 : 10.00
100 : 100.0
1 k : 1.000
10 k : 10.00
100 k : ±0.5
100 :
SC202S
+
SUPPLY SENSOR
G 11 12 13 14 15 16
DC
+
Milli-
Note 1
+ -
DC source
24V DC
Ground
Decade
Box 1
Decade
Box 2
Note 1: Cable connected to sensor input should be conductivity detector cable of length 2.1 ±0.1 m. Connect pins 13 and 14, also 15 and 16, to Decade box 2 terminals. Use shielded cable, and connect shield to pin 14.
Figure 1 Testing Circuit and Test Equipment
QIS 12D08B02-21E
IM 12D08B02-01E
3-8 Appendix
IM 12D08B02-01E
Appendix 3-9
13-3. SC202G, SC202S 2-Wire Conductivity Transmitter (Fieldbus Communication)
Quality
Inspection
Standards
SC202G, SC202S
2-Wire Conductivity Transmitter
(Fieldbus Communication)
1. Scope
This inspection standard applies to the SC202G and SC202S 2-Wire Conductivity Transmitters
(Fieldbus specification).
2.1 Insulation resistance test
* 2.2 Dielectric strength test
2.3 Temperature indication check
2.4 Conductivity indication check
* 2.5 Fieldbus communication functional check
Note: Items marked with an asterisk (*) may only be confirmed by a test certificate.
3. Inspection Methods, Standards and Conditions z z
Connect the testing circuit as shown in Figure 1. Allow the instrument to warm up for at least
5 minutes before conducting the tests. For the connections for the insulation resistance test, follow the instructions in Section 3.1 and for the connections for the dielectric strength test, follow the instructions in Section 3.2.
Use test equipment shown in Figure 1, or equivalent, for the tests.
3.1 Insulation Resistance Test
(1) Apply 500 V DC between the power supply terminals shorted together (+ and –) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
(2) Apply 500 V DC between the input terminals shorted together (11 to 16) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
3.2 Dielectric Strength Test (Required Only for SC202S)
Apply 600 V AC, an AC voltage of substantially sinusoidal waveform with a frequency of 50 Hz or 60 Hz, between the terminals shown below, for at least 2 seconds. The insulation must withstand this voltage. (The sensed current should be 10 mA.)
(1) Between the power supply terminals shorted together (+ and –) and the earth terminal (G)
(2) Between the input terminals shorted together (11 to 16) and the earth terminal (G)
(3) Between the input terminals shorted together (11 to 16) and the power supply terminals shorted together (+ and –)
Connect the instruments as shown in Figure 1, and set them as follows.
Decade resistance box 1: 960.9 :
Decade resistance box 2: 10 Ω
QIS 12D08B02-61E
1st Edition: Apr. 2007
IM 12D08B02-01E
3-10 Appendix
2/3
In this state, change the resistance value of the decade resistance box 1 as shown in Table 1.
The corresponding temperature indication must be within the range.
Table 1 Temperature Indication Check
Reference
Temperature
–10 °C
75 °C
Resistance of
Resistance Box 1
960.9 :
1289.8 :
190 °C
240 °C
Indication Range
1721.6 Ω 190
1904.6 Ω 240
3.4 Conductivity Indication Check
Connect the instruments as shown in Figure 1, and set them as follows.
Decade resistance box 1: 100 Ω
Decade resistance box 2: 10 Ω
In this state, change the resistance value of the decade resistance box 2 as shown in Table 2.
The corresponding conductivity indication must be within the range.
Table 2 Conductivity Indication Check (Cell Constant : 0.1/cm)
Reference
Conductivity
Resistance of
Resistance Box 2
Indication Range
10 mS/cm
1 mS/cm
100 μ S/cm
10 μ S/cm
10 Ω 10
100 :
1 k :
10 k :
100 ±0.5 μ S/cm
±0.05 S/cm
1 μ S/cm 100 k :
Check for normal function using Fieldbus equipment specified by Yokogawa.
QIS 12D08B02-61E
IM 12D08B02-01E
Appendix 3-11
3/3
Figure 1 Testing Circuit and Test Equipment
QIS 12D08B02-61E
IM 12D08B02-01E
3-12 Appendix
IM 12D08B02-01E
13-4. SC202G, SC202S 2-Wire Conductivity Transmitter (Profibus Communication)
Quality
Inspection
Standards
SC202G, SC202S
2-Wire Conductivity Transmitter
(Profibus Communication)
Appendix 3-13
1. Scope
This inspection standard applies to the SC202G and SC202S 2-Wire Conductivity Transmitters
(Profibus specification).
2.1 Insulation resistance test
* 2.2 Dielectric strength test
2.3 Temperature indication check
2.4 Conductivity indication check
* 2.5 Profibus communication functional check
Note: Items marked with an asterisk (*) may only be confirmed by a test certificate.
3. Inspection Methods, Standards and Conditions z z
Connect the testing circuit as shown in Figure 1. Allow the instrument to warm up for at least
5 minutes before conducting the tests. For the connections for the insulation resistance test, follow the instructions in Section 3.1 and for the connections for the dielectric strength test, follow the instructions in Section 3.2.
Use test equipment shown in Figure 1, or equivalent, for the tests.
3.1 Insulation Resistance Test
(1) Apply 500 V DC between the power supply terminals shorted together (+ and –) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
(2) Apply 500 V DC between the input terminals shorted together (11 to 16) and the earth terminal (G). The insulation resistance must be 100 M Ω or greater.
3.2 Dielectric Strength Test (Required Only for SC202S)
Apply 600 V AC, an AC voltage of substantially sinusoidal waveform with a frequency of 50 Hz or 60 Hz, between the terminals shown below, for at least 2 seconds. The insulation must withstand this voltage. (The sensed current should be 10 mA.)
(1) Between the power supply terminals shorted together (+ and –) and the earth terminal (G)
(2) Between the input terminals shorted together (11 to 16) and the earth terminal (G)
(3) Between the input terminals shorted together (11 to 16) and the power supply terminals shorted together (+ and –)
Connect the instruments as shown in Figure 1, and set them as follows.
Decade resistance box 1: 960.9 :
Decade resistance box 2: 10 Ω
QIS 12D08B02-71E
1st Edition: Sep. 2007
IM 12D08B02-01E
3-14 Appendix
2/3
In this state, change the resistance value of the decade resistance box 1 as shown in Table 1.
The corresponding temperature indication must be within the range.
Table 1 Temperature Indication Check
Reference
Temperature
–10 °C
75 °C
Resistance of
Resistance Box 1
960.9 :
1289.8 :
190 °C
240 °C
Indication Range
1721.6 Ω 190
1904.6 Ω 240
3.4 Conductivity Indication Check
Connect the instruments as shown in Figure 1, and set them as follows.
Decade resistance box 1: 100 Ω
Decade resistance box 2: 10 Ω
In this state, change the resistance value of the decade resistance box 2 as shown in Table 2.
The corresponding conductivity indication must be within the range.
Table 2 Conductivity Indication Check (Cell Constant : 0.1/cm)
Reference
Conductivity
Resistance of
Resistance Box 2
Indication Range
10 mS/cm
1 mS/cm
100 μ S/cm
10 μ S/cm
10 Ω 10
100 :
1 k :
10 k :
100 ±0.5 μ S/cm
±0.05 S/cm
1 μ S/cm 100 k :
IM 12D08B02-01E
QIS 12D08B02-71E
Appendix 3-15
3/3
3.5 Profibus Communication Functional Check
Check for normal function using Profibus equipment specified by Yokogawa.
In the tests of Item 3.3 to 3.4, check the communication function using Profibus communication.
+
SUPPLY
–
G 11
TEMP
12
SC202
13 14 16 15
C R
C R
R=50 １
C=2 μ F ± 0.4
μ F
Decade
Resistance
Box 1
DA/PA Coupler
Decade
Resistance
Box 2
+
–
DC
Source
24VDC
Profibus Equipment Specified by Yokogawa
Figure 1 Testing Circuit and Test Equipment
QIS 12D08B02-71E
IM 12D08B02-01E
3-16 Appendix
IM 12D08B02-01E
Customer
Maintenance
Parts List
Model SC202G [Style: S3]
Conductivity and Resistivity Transmitter
11
10
14
9
8
5
4
6,7
3
2
13
12 1
Item Part No. Qty Description
1 Cover Assembly
K9315CA 1 Polyurethane Coating
K9315CN 1
2
K9661CD 1
K9661CE 1
K9661CF 1
3
K9661HA 1
K9661HB 1
4 L9811FV
5 K9660AQ 1
6 A1726JD
7 K9184AA 1
8 K9661HR
*9
2
1
2
K9661SA 1
K9661SC 1
Epoxy-polyester Coating
Internal Works Assembly with amplifier assembly
For mA + HART
For FF
For Profibus
Housing Assembly
Polyurethane Coating
Epoxy-polyester Coating
Cable Gland Assembly
Flat Cable
Pin Terminal Unit 3 terminals type
Screw Terminal Unit when /TB specified
Stud
Analog Board Assembly
For mA + HART
For FF/Profibus
*10
K9661CV 1
K9661CW
11 K9660YQ
12 K9660YP
1 Digital/Display
1
1
1
For mA + HART
For FF/Profibus
Screw Assembly to fix amplifier
Stainless steel screw assembly to fix cover
13
K9414DH 1
K9414DJ
*14
1
K9661MC 1
K9661NC 1
Adapter Assembly
For G1/2 screw when /AFTG specified (2 units).
For 1/2NPT screw when /ANSI specified (2 units).
Comm. Board Assembly
For FF
For Profibus
* Do not exchange these parts. Call service personnel.
©Copyright 2007, 1st Edition: Apr, 2007 (YK)
Subject to change without notice.
CMPL 12D08B02-03E
2nd Edition : Aug.2007 (YK)
1
Pipe/Wall Mounting Hardware (Option Code : /U)
1
2
Panel Mounting Hardware
(Option Code : /SCT)
2 3
Hood to sun protection
4
Option Code : /H
/H2
(Option Code : /PM)
Item
1
2
3
4
Parts No.
K9171SS
K9311BT
K9311KA
K9311KG
K9660JA
Qty
1
1
1
1
1
Description
Universal Mount Set (/U)
Tag Plate (/SCT)
Fitting Assembly (/PM)
Hood Assembly (/H)
Hood Assembly (/H2)
CMPL 12D08B02-03E
2nd Edition : Aug.2007 (YK)
Customer
Maintenance
Parts List
Model SC202S [Style : S3]
Conductivity and Resistivity Transmitter
11
10
14
9
8
5
4
6
3
2
13
12
1
Item Part No. Qty Description
1
K9315CA
K9315CN
2
Cover Assembly
1 Polyurethane Coating
1
1
1
1
1
Epoxy-polyester Coating
Internal Works Assembly with amplifier assembly
For mA + HART
For FF
For Profibus
For mA + HART (Non-incendive)
3
4 L9811FV
5
6
8
9
10
11
12 K9660YP
13
K9414DH
K9414DJ
14
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
Housing Assembly
Polyurethane Coating
Epoxy-polyester Coating
Cable Gland Assembly
Flat Cable
Pin Terminal Unit 3 terminals type
Stud
Analog Board Assembly
For mA + HART
For FF/Profibus
For mA + HART (Non-incendive)
Digital/Display Board
For mA + HART
For FF/Profibus
Screw Assembly to fix amplifier
Stainless steel screw asssembly to fix cover
Adapter Assembly
For G1/2 screw when /AFTG specified (2 units).
For 1/2NPT screw when /ANSI specified (2 units).
Comm. Board Assembly
FF
Profibus
©Copyright 2008, 1st Edition: Feb, 2008 (YK)
Subject to change without notice.
CMPL 12D08B02-23E
2nd Edition : Nov.2008 (YK)
1
Pipe/Wall Mounting Hardware (Option Code : /U)
1
2
Panel Mounting Hardware
(Option Code : /SCT)
2 3
Hood to sun protection
4
Option Code : /H
/H2
(Option Code : /PM)
Item
1
2
3
4
Parts No.
K9171SS
K9311BT
K9311KA
K9311KG
K9660JA
Qty
1
1
1
1
1
Description
Universal Mount Set (/U)
Tag Plate (/SCT)
Fitting Assembly (/PM)
Hood Assembly (/H)
Hood Assembly (/H2)
CMPL 12D08B02-23E
2nd Edition : Nov.2008 (YK)
Revision Record
Manual Title : Model SC202G [Style: S3], SC202S [Style: S3]
2-wire Conductivity or Resistivity Transmitter
Manual Number : IM 12D08B02-01E
Edition Date Remark
1st
2nd
3rd
4th
5th
6th
7th
Feb. 2001 Newly published
Feb. 2004 Style of SC202G changed to S2.
May. 2004 HART function is additionally described over all.
Mar. 2005 Intrinsically safe type transmitter SC202SJ [Style: S1] added.
Mar. 2007 All over revised. SC202SJ’s IM separated to IM 12D08B02-11E.
Style of SC202G changed to S3, style of SC202S changed to S2.
Oct. 2007 PREFACE-1, Some of warning description modified; P. 1-1, Some of nameplate in Figure 1-1 changed; P. 1-2, Some of nameplate in Figure 1-2 changed; P. 2-2, EN 61000-3-3 deleted from "I. Regulatory compliance."; P.
2-3, Certificate no. of CENELEC ATEX and IECEx Scheme explosionproof added, CSA explosionproof description added; P. 2-4, P. layout changed; P. 2-
5, Note added to Model and suffix codes; P. 2-8, Control Drawing for mA HART
Specification (FM Intrinsically safe design) corrected; P. 2-9, Control Drawing for mA HART Specification (FM Non-incendive design) corrected; P. 2-10,
Control Drawing for mA HART Specification (CSA) corrected; P. 2-11, Control
Drawing for FF/PB Specification (IECEx) corrected; P. 2-12, Control Drawing for FF/PB Specification (ATEX) corrected; P. 2-13, Control Drawing for FF/PB
Specification (FM Intrinsically safe Entity) corrected; P. 2-15, Control Drawing for FF/PB Specification (FM Intrinsically safe FISCO) corrected; P. 2-17,
Control Drawing for FF/PB Specification (FM Non-incendive Entity) corrected;
P. 2-18, Control Drawing for FF/PB Specification (FM Non-incendive FNICO) corrected; P. 2-19, Control Drawing for FF/PB Specification (CSA) corrected; P.
5-8, Subsection 5-3, "Notes for guidance in the use of service code settings:"
Added some cautions; Sec. 13 APPENDIX 3 QUALITY INSPECTION added;
CMPL 12D08B02-03E, -22E revised to 2nd edition because some part no. changed.
Apr. 2008 Style of SC202S changed to S3 and related description changed as follows.
P.2-5, Style of SC202S changed to S3 for FM approval; P.3-1, Some of dimensions in Figure 3-1 corrected; P.5-9, NOTE to confirm zero offset after
*AIR operation added to code 04; P.1-7 (Appendix), Note of HART protrocol
DD files URL added; CMPL 12D08B02-23E 1st edition added for SC202S style
S3.
IM 12D08B02-01E
Edition Date Remark
8th Oct. 2009 PREFACE, "Zone 0" added to Warning label explanation; P.1-1, Name plate of
SC202S-K (NEPSI) added to Figure 1-1; P.2-2, Some revision of I. Regulatory compliance (description for EMC revised); P.2-3 to 2-4, Some revision of
IECEx Intrinsically safe description ("Zone 0" added), and NEPSI Certification added to page 2-3 and 2-4; P.2-5, NEPSI suffix code of "-K" added to the
SC202S MS-code; CMPL 12D08B02-23E of SC202S(S3) revised to 2nd edition (some parts no. deleted).
IM 12D08B02-01E
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