YOKOGAWA DO202G User Manual
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YOKOGAWA DO202G User Manual

YOKOGAWA DO202G User Manual

2-wire dissolved oxygen transmitter
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User's
Manual
Model DO202G [Style: S2],
DO202S [Style: S3]
2-wire Dissolved Oxygen Transmitter
IM 12J05C01-01E
IM 12J05C01-01E
4th Edition

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  • Page 1 User’s Manual Model DO202G [Style: S2], DO202S [Style: S3] 2-wire Dissolved Oxygen Transmitter IM 12J05C01-01E IM 12J05C01-01E 4th Edition...

  • Page 2: Table Of Contents

    4-5. Display functions ..................4-3 5. PARAMETER SETTING .................. 5-1 5-1. Maintenance mode .................. 5-1 5-1-1. Manual activation of hold ..................5-1 5-1-2. Manual temperature adjustment ................5-2 IM 12J05C01-01E 4th Edition: Oct. 2009(YK) All Rights Reserved, Copyright © 2007, Yokogawa Electric Corporation IM 12J05C01-01E...
  • Page 3 A-2-2. DO202S 2-Wire Dissolved Oxygen Transmitter ........A2-5 A-2-3. DO202G, DO202S Fieldbus Communication ........A2-10 A-2-4. DO202G, DO202S Profibus Communication ........A2-14 Customer Maintenance Parts List (for DO202G Style: S2) CMPL 12J05C01-02E Customer Maintenance Parts List (for DO202S Style: S3) . CMPL 12J05C01-23E Revision Record ......................i In this manual a sign appears if it concerns the DO202G (S)-A, -N, -K. IM 12J05C01-01E...

  • Page 4: Preface

    Handle with care. Yokogawa is not responsible for damage to the instrument, poor performance of the instrument Although the instrument has a weatherproof or losses resulting from such, if the problems are...
  • Page 5 The following safety symbols are used on the prod- Warranty and service Yokogawa products and parts are guaranteed free uct as well as in this manual. from defects in workmanship and material under nor- mal use and service for a period of (typically)
  • Page 6 Se si desidera ricevere i man- uali operativi di prodotti Ex in lingua locale, met- tersi in contatto con l’ufficio Yokogawa più vicino o con un rappresentante. Alle Betriebsanleitungen für ATEX Ex bezo- gene Produkte stehen in den Sprachen Englisch, Deutsch und Französisch zur Verfügung.
  • Page 7 IM 12J05C01-01E...

  • Page 8: Introduction And General Description

    Introduction 1-1 1. INTRODUCTION AND GENERAL DESCRIPTION The Yokogawa EXA 202 is a 2-wire transmitter 1-1. Instrument check designed for industrial process monitoring, meas- urement and control applications. Upon delivery, unpack the instrument carefully and This user’s manual contains the information needed...
  • Page 9 1-2 Introduction FISCO field device DISSOLVED OXYGEN TRANSMITTER DISSOLVED OXYGEN TRANSMITTER IECEx KEM 07.0029X Zone 0 Ex ia IIC T4 MODEL DO202S-P MODEL DO202S-F IP65 SUFFIX SUFFIX SEE CONTROL DRAWING KEMA 07ATEX0054 X Ex ia IIC T4 II 1G SEE CONTROL DRAWING FISCO SUPPLY FISCO...

  • Page 10: Application

    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 EMC Directive 89/336/EEC, to assure the user of continued accurate performance in even the most demanding industrial installations.
  • Page 11 1-4 Introduction IM 12J05C01-01E...

  • Page 12: General Specifications

    H. Power supply Nominal 24 volt DC loop powered system DO202G-A : up to 40 volts DO202S-A, -N: up to 31.5 volts DO202G/S-F, -P: 9-24, 9-17.5 (FISCO) VDC / 26.0 mA DO202S-B, -D: 9-32 VDC / 26.0 mA IM 12J05C01-01E...

  • Page 13: Performance Specifications

    Intrinsically Safe Apparatus Parameters and with simulated inputs, because the Vmax=31.5 V, Imax=100 mA, Factory DO202G can be used with many different Pmax=1.2 W, Ci=22 nF, Li=35 μH Mutual (FM) sensors with their unique characteristics. The following tolerance is added to above...
  • Page 14 Temp. Class: T4, Amb. Temp.: -10 to 55°C by other than authorized representative of Ui(Vmax)=24 V, Ii(Imax)=250 mA, Entity Canadian Pi(Pmax)=1.2 W, Ci=220 pF, Li=0 μH Yokogawa Electric Corporation and will void Standards Ui(Vmax)=17.5 V, Ii(Imax)=380 mA, FISCO Association NEPSI Intrinsically safe certification.
  • Page 15 G. Configuration : Local with 6 keys FOUNDATION FIELDBUS H1 communications A. Input signal: Digital H. Software : Firmware based on Yokogawa stack. B. Supply voltage: 9 to 32 V DC C. Operating current: 26.0 mA (base current) I. Hardware : JYokogawa HART® Modem F9197UB D.

  • Page 16: Model And Suffix Codes

    General Specifications 2-5 F-BUS interfaces from National In- L. Hardware: struments (AT-FBUS, PCMIA-FBUS) M. Other control systems: YOKOGAWA PRM, DTM 2-3. MODEL AND SUFFIX CODES [Style: S2] Model Suffi x Code Option Code Description DO202G --------------------- ----------------------- 2-wire Dissolved Oxygen transmitter...

  • Page 17: Control Drawing Of Do202S Ma Hart Specification (Iecex)

    General Specifications 2-6 2-4. Control Drawing of DO202S mA HART® Specification (IECEx) Intrinsically safe design Ex ia or ib IEC Ex standard Ex ia IIC : T4 for ambient temp. < 55°C Certified safety barrier or pow er T6 for ambient temp. < 40°C with R int=300 C ertificate nr.

  • Page 18: Control Drawing Of Do202S Ma Hart Specification (Atex)

    2-7 General Specifications 2-5. Control Drawing of DO202S mA HART® Specification (ATEX) Intrinsically safe design A TEX A pproved safety barrier ATEX C lass I, D iv.1, G roup ABC D , T4 for ambient temp. < 55°C or pow er supply T6 for ambient temp.
  • Page 19 General Specifications 2-8 2-6. Control Drawing of DO202S mA HART® Specification (FM Intrinsically safe design) Intrinsically safe design FM Approved safety barrier or FM Class I, Div.1, Group ABCD, T4 for ambient temp. < 55°C power supply T6 for ambient temp. < 40°C with Rint = 300 DO202S transmitter (HART compatible)
  • Page 20 2-9 General Specifications 2-7. Control Drawing of DO202S mA HART® Specification (FM Non-incendive design) N o n in c n e n d iv e d e s ig n C la s s I, D iv .2 , G ro u p A B C D , T 4 fo r a m b ie n t te m p .

  • Page 21: Control Drawing Of Do202S Ma Hart Specification

    General Specifications 2-10 2-8. Control Drawing of DO202S mA HART® Specification (CSA) Intrinsically safe design C S A certified safety barrier or C S A E x ia C lass I, D iv.1, G roup A B C D , T 4 for am bient tem p.

  • Page 22: Control Drawing Of Do202S Ff/Pb Specification (Iecex)

    2-11 General Specifications 2-9. Control Drawing of DO202S FF/PB Specification (IECEx) Ex ia IIC T4 for ambient temp. 55 C Ui = 24 V Ui = 17,5 V Ii = 250 mA Ii = 380 mA Pi = 1,2 W Pi = 5,32 W DO202S-F or DO202S-P...

  • Page 23: Control Drawing Of Do202S Ff/Pb Specification (Atex)

    General Specifications 2-12 2-10. Control Drawing of DO202S FF/PB Specification (ATEX) Ex ia IIC T4 for ambient temp. 55 C Ui = 24 V Ui = 17,5 V Ii = 250 mA Ii = 380 mA Pi = 1,2 W Pi = 5,32 W DO202S-F or DO202S-P...
  • Page 24 2-13 General Specifications 2-11. Control Drawing of DO202S FF/PB Specification (FM Intrinsically safe Entity) FM Class I, DIV. 1, Group ABCD Sensor T4 for ambient temp. 55 C Connections Max. cablelength: 60 mtr. DO202S-F Cable dia. : 3…12 mm. or DO202S-P Sensor Connections FM Approved...
  • Page 25 General Specifications 2-14 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’...
  • Page 26 2-15 General Specifications 2-12. Control Drawing of DO202S FF/PB Specification (FM Intrinsically safe FISCO) FM Class I, DIV. 1, Group ABCD Sensor T4 for ambient temp. 55 C Connections DO202S-F Max. cablelength: 60 mtr. or DO202S-P Cable dia. : 3…12 mm. Sensor Connections FM Approved...
  • Page 27 General Specifications 2-16 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 50μA for each connected device.
  • Page 28 2-17 General Specifications 2-13. Control Drawing of DO202S FF/PB Specification (FM Non-incendive Entity) FM Class I, DIV. 2, Group ABCD T4 for ambient temp. 55 C Sensor T6 for ambient temp. 40 C Connections DO202S-B Max. cablelength: 60 mtr. or DO202S-D Cable dia.: 3…12 mm.
  • Page 29 General Specifications 2-18 2-14. Control Drawing of DO202S FF/PB Specification (FM Non-incendive FNICO) FM Class I, DIV. 2, Group ABCD T4 for ambient temp. 55 C Sensor T6 for ambient temp. 40 C Connections DO202S-B Max. cablelength: 60 mtr. or DO202S-D Cable dia.: 3…12 mm.

  • Page 30: Control Drawing Of Do202S Ff/Pb Specification

    2-19 General Specifications 2-15. Control Drawing of DO202S FF/PB Specification (CSA) CSA Ex ia Class I, DIV. 1, Group ABCD T4 for ambient temp. 55 C Ui = 24 V Ui = 17,5 V Ii = 250 mA Ii = 380 mA Pi = 1,2 W Pi = 5,32 W DO202S-F...
  • Page 31 General Specifications 2-20 IM 12J05C01-01E...

  • Page 32: Installation And Wiring

    3-1 Installation and Wiring 3. INSTALLATION AND WIRING 3-1. Installation and dimensions The ambient temperature and humidity of the instal- 3-1-1. Installation site The EXA transmitter is weatherproof and can be installed lation environment must be within the limits of the inside or outside.
  • Page 33 Installation and Wiring 3-2 Unit: mm (inch) (0.14) SPACING PANEL CUTOUT PANEL CUTOUT Fig. 3-2b. Panel mounting using two (2) self-tapping screws Pipe mounting Pipe mounting (Vertical) (Horizontal) (2.20) 2-Ø6.5 (0.26) (7.87) 4-Ø10 (0.4) (4.5) (2.75) Nominal 50 A (O.D. Ø60.5 mm) (2 inch pipe) 4.eps Figure 3-3.

  • Page 34: Wiring Of Power Supply

    3-3 Installation and Wiring Commission the instrument as required or use 3-2. Wiring of power supply the default settings. 5. Replace the cover and secure frontplate with the 3-2-1. General precautions four screws. Do not activate the power supply yet. First make 6.

  • Page 35: Wiring Other Galvanic Sensors

    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.

  • Page 36: Additional Precautions For Installations In Hazardous Areas

    3-5 Installation and Wiring Extension cable may be purchased in bulk quanti- 3-3-6. Additional precautions for installations in ties, cut to length. Then it is necessary to terminate hazardous areas the cable as shown below. Make sure that the total of capacitance and induct- ances connected to the input terminals of the EXA Termination procedure for WF10 cable.
  • Page 37 IM 12J05C01-01E...

  • Page 38: Operation; Display Functions And Setting

    Operation: Display Functions and Settings 4-1 4. OPERATION; DISPLAY FUNCTIONS AND SETTING 4-1. Operator interface LEVEL 2: Commissioning This section provides a survey of the operation of A second menu is exposed when the EXA front the EXA operator interface. The basic procedures for cover is removed and the display board is revealed.

  • Page 39: Explanation Of Operating Keys

    4-2 Operation: Display Functions and Settings Main display Fail flag Menu pointer flags Message display MODE TEMP.MAN FAIL Commissioning function menu %sat YES NO OUTPUT DISPLAY SET HOLD HOLD SERVICE Key prompt flags Commissioning mode access key Selection keys MODE YES : Accept setting : Change setting Adjustment keys...

  • Page 40: Display Examples

    Operation: Display Functions and Settings 4-3 service codes, or by choices made in the commis- 4-4. Display examples sioning menu. The following pages show the sequence of button presses and screens displayed when working in The following deviations are possible: some standard configurations.

  • Page 41: Parameter Setting

    5-1 Parameter Setting 5. PARAMETER SETTING 5-1. Maintenance mode Calibration Air See “calibration” section 6. Standard operation of the EXA instrument involves See “calibration” section 6. use of the Maintenance (or operating) mode to set Sensitivity See “calibration” section 6. up some of the parameters.

  • Page 42: Manual Temperature Adjustment

    Parameter Setting 5-2 5-1-2. Manual temperature adjustment %SAT DISPLAY HOLD MODE Manual temperature Set using >, ,ENT keys. NO 2x TEMP.MAN 5-1-3. Manual pressure adjustment %SAT DISPLAY HOLD MODE Calibration pressure % sat process (process pressure) Set using >, ,ENT keys. Set using >, ,ENT keys.

  • Page 43: Commissioning Mode

    5-3 Parameter Setting 5-2. Commissioning mode Hold The EXA DO202 transmitter has the ability to “HOLD” the output during In order to obtain peak performance from the EXA maintenance periods. This transmitter, you must set it up for each custom parameter should be set up to hold application.

  • Page 44: Hold

    Parameter Setting 5-4 5-2-2. HOLD MODE TEMP.MAN FAIL %sat YES NO OUTPUT DISPLAY HOLD SET HOLD SERVICE MODE HOLD HOLD HOLD YES NO YES NO Set HOLD "fixed value" HOLD HOLD YES NO YES NO HOLD active last measured value. IM 12J05C01-01E...

  • Page 45: Service

    5-5 Parameter Setting 5-2-3. SERVICE MODE TEMP.MAN FAIL %sat YES NO OUTPUT DISPLAY HOLD SET HOLD SERVICE MODE Example: Service Code 01 Select Sensor Type for galvanic sensor Polarization voltage and sensitivity. for polarographic Set using >, ,ENT keys. With the >, ,ENT keys IM 12J05C01-01E...

  • Page 46: Notes For Guidance In The Use Of Service Coded Settings

    Parameter Setting 5-6 5-3. Notes for guidance in the use of service coded settings 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 serv- ice level.
  • Page 47 5-7 Parameter Setting Code Display Function Function detail Default values Parameter Specific functions *S.TYPE Sensor type Galvanic Polarographic *V.POL (Polarographic) 0.675 V Polarization Voltage 7.5 nA /ppm *SENS Sensor sensitivity Polarographic Galvanic 450 nA /ppm (*S.TYPE=0) *SAL.TY Salinity comp. Compensation disabled Compensation enabled *[Cl-] NaCl conc.

  • Page 48: User Interface

    Parameter Setting 5-8 5-3-4. mA output functions Code 31 *OUTP.F For the DO202 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.
  • Page 49 5-9 Parameter Setting Code Display Function Function detail Default values Output Functions Not used *OUTP.F mA output functions Linear Linear Table *BURN Burn function No burnout No Burn. Burnout downscale Burnout upscale Pulse burnout 33, 34 Not used *TABLE Output table for mA Linearization table for mA in 5% steps.

  • Page 50: Communication Setup

    Parameter Setting 5-10 5-3-6. Communication setup Code 60 *COMM. The settings should be adjusted to suit the communicating device connected to the output. The communication can be set to HART®. *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).
  • Page 51 5-11 Parameter Setting Code Display Function Function detail Default values Communication *COMM. Communication Set HART® communication Set HART® communication Communication write enable Write Communication write protect enable *ADDR. Network address Set address 00 to 15 *HOUR Clock setup Adjust to current date and time using *MINUT >, ^ and ENT keys *SECND...

  • Page 52: Calibration Procedure

    Calibration Procedure 6-1 6. CALIBRATION PROCEDURE Calibration of the dissolved oxygen analyzer is per- Note: In normal industrial environments better formed in the following situations: results are obtained with air calibration, which is therefore the recommended method. • When a new dissolved oxygen sensor is installed. •...

  • Page 53: Calibration Procedure Using Air Calibration Method

    6-2 Calibration Procedure (a convenient way to accomplish this environment is 6-2. Calibration procedure using air calibration to place the sensor in an empty bucket). method Note: If sensors are used without temperature 6-2-1. Preparation Move the sensor to a maintenance site and wash compensating element, the temperature off any dirt on the membrane.

  • Page 54: Calibration Procedure Using Water Calibration Method

    Calibration Procedure 6-3 If both zero and span calibration are used, it is bet- 6-3. Calibration procedure using water calibra- ter to start with span calibration in spite of normal tion method calibration sequence with analog instrumentation. 6-3-1. Preparation Move the sensor to a maintenance site and wash Otherwise the sensor must be rinsed off carefully to off any dirt on the membrane.

  • Page 55: Calibration Procedure Using Manual Calibration Method

    6-4 Calibration Procedure The following precautions must be taken into 6-4. Calibration procedure using manual calibra- account: tion method • The sample must be analyzed directly after sampling to avoid change of dissolved oxygen 6-4-1. Preparation concentration or temperature after sampling •...

  • Page 56: Procedure For Manual Zero (Offset) Calibration

    Calibration Procedure 6-5 6-4-3. Procedure for manual zero (offset) calibration MODE TEMP.MAN FAIL %sat YES NO OUTPUT DISPLAY HOLD SET HOLD SERVICE MODE After briefly displaying WAIT, the display returns to the normal readout. Select the flashing digit with the key.
  • Page 57 6-6 Calibration Procedure Table 6-1. Solubility of oxygen (mg/l) in water as a function of temperature & salinity (ISO 5814) Temp Solubility of oxygen in water in equilibrium Correction to be substracted for each degree of salinity with air expressed in grams per kilogram of total salts in water @101.325kPa[pO [∆pO °C...

  • Page 58: Maintenance

    Maintenance 7-1 7. MAINTENANCE It is important for maintaining the measurement 7-1-1. Inspection and maintenance to be imple- accuracy of the EXA DO series of wire dissolved- mented periodically oxygen metering system to perform inspection and Table 7-1. shows the items which are recommended maintenance at fixed intervals.

  • Page 59: Troubleshooting

    After the printed circuit board is replaced, opera- following items: tion checks and parameter settings are necessary. • Is the property of the measuring solution different Contact Yokogawa and request board-replacement from normal? work. • Is the dissolved-oxygen sensor properly installed? 8-2.
  • Page 60 Electronic circuit failure back on and check whether or not the system returns to normal. If the failure occurs again, contact Yokogawa to request repair. CODE 11 Temperature error correction failure Accurately measure the temperature of The difference between the corrected value...

  • Page 61: Spare Parts

    9-1 Spare Parts 9. SPARE PARTS See Customer Maintenance Parts List. Figure 9-1. Exploded view IM 12J05C01-01E...

  • Page 62: Appendix 1. User Settings

    Appendix 1-1 APPENDIX 1. USER SETTINGS A-1-1. User setting table FUNCTION SETTING DEFAULTS USER SETTINGS Parameter specific functions *S.TYPE Polarographic *V.POL 0.675 *SENS nA/ppm *SAL.TY *[Cl-] g/kg Temperature measuring functions *T.SENS 22k NTC *T.UNIT °C *T.ADJ None *T.MAN Calibration parameter functions *∆T.SEC sec.

  • Page 63: A-1-2 Configuration Checklist For Do202

    (HHT) or through Pactware. This program and TV: % Saturation the Yokogawa DTM library can be downloaded QV: sensor current from YOKOGAWA WEB sites free of charge by Yokogawa customers. Each of these process variables can be decoded into Yokogawa recommends the use of MH-02 modem current output or contact output through the HIM: Hart for HART-RS232 conversion.

  • Page 64: A-1-4. Device Description (Dd) Menu Structure

    A-1-4 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 Communicator (HHC).
  • Page 65 IM 12J05C01-01E...

  • Page 66: Appendix 2. Quality Inspection

    Quality DO202G Inspection Dissolved Oxygen Transmitter Standards Scope This inspection standard applies to the DO202G Dissolved Oxygen Transmitter. Inspection Items 2.1 Insulation resistance test 2.2 Current output test 2.3 Temperature indication check * 2.4 Galvanic indication check * 2.5 Polarograph indication check Note: Items marked with an asterisk (*) may only be confirmed by a test certificate.
  • Page 67 2-2 Appendix (2) Setting Password 070. a. Press the [>] key once. The data display will show “000” with the second digit of 0 flashing. b. Press the [ ] key seven times. The data display will show “070” with the second digit of 7 flashing.
  • Page 68 Data Display (nA) 200 ±1 600 ±3 1000 1000 ±5 Press the [ENT] key until the message display shows “READY.” Press the [ENT] key again to finish the tests. DO202G SUPPLY TEMP GALV SENS POL SENS Shorting bar Ammeter Decade...
  • Page 69 2-4 Appendix IM 12J05C01-01E...

  • Page 70: A-2-2. Do202S 2-Wire Dissolved Oxygen Transmitter

    Appendix 2-5 A-2-2. DO202S 2-Wire Dissolved Oxygen Transmitter Quality DO202S Inspection Dissolved Oxygen Transmitter Standards Scope This inspection standard applies to the DO202S Dissolved Oxygen Transmitter. Inspection Items 2.1 Insulation resistance test * 2.2 Dielectric strength test 2.3 Current output test 2.4 Temperature indication check * 2.5 Galvanic indication check * 2.6 Polarograph indication check...
  • Page 71 2-6 Appendix (1) Entering Service Code 87. a. Press the [ ] key. The message display will show “ OUTP.” b. Press the [NO] key twice. The message display will show “ SERV.” c. Press the [YES] key. The data display will show “00” with the first digit of 0 flashing. d.
  • Page 72 Appendix 2-7 Galvanic Indication Check Following Section 3.4, press the [ENT] key until the message display shows “GALVA.” Then turn SW1 off. Change the current of the DC generator 1 and check the data display. The value on the data display must be within the range shown in Table 3. Table 3 Reference (μA) Data Display (μA)
  • Page 73 2-8 Appendix DO202S SUPPLY TEMP GALV SENS POL SENS Shorting bar Ammeter Decade Resistance Generator 1 Generator 2 DC Source 24 V DC Figure 1 Testing Circuit and Test Equipment QIS 12J05C01-21E IM 12J05C01-01E...
  • Page 74 Appendix 2-9 IM 12J05C01-01E...
  • Page 75 DO202G, DO202S Inspection Dissolved Oxygen Transmitter (Fieldbus Communication) Standards Scope This inspection standard applies to the DO202G and DO202S Dissolved Oxygen Transmitters (Fieldbus specification). Inspection Items 2.1 Insulation resistance test * 2.2 Dielectric strength test 2.3 Temperature indication check * 2.4 Galvanic indication check * 2.5 Polarographic indication check...
  • Page 76 Appendix 2-11 In this state, change the resistance value of the decade resistance box as shown in Table 1. The corresponding temperature indication must be within the range. Table 1 Reference Resistance of Data Display (°C) Temperature (°C) Resistance Box (Ω) –9 99.6k –9 ±0.3...
  • Page 77 200 ±1 600 ±3 1000 1000 ±5 Press the [MODE] key to return to normal mode. Fieldbus Communication Functional Check Check for normal function using Fieldbus equipment specified by Yokogawa. DO202 SUPPLY TEMP ● GALV SENS ● ● POL SENS ●...
  • Page 78 Appendix 2-13 IM 12J05C01-01E...
  • Page 79 DO202G, DO202S Inspection Dissolved Oxygen Transmitter (Profibus Communication) Standards Scope This inspection standard applies to the DO202G and DO202S Dissolved Oxygen Transmitters (Profibus specification). Inspection Items 2.1 Insulation resistance test * 2.2 Dielectric strength test 2.3 Temperature indication check * 2.4 Galvanic indication check * 2.5 Polarographic indication check...
  • Page 80 Appendix 2-15 In this state, change the resistance value of the decade resistance box as shown in Table 1. The corresponding temperature indication must be within the range. Table 1 Reference Resistance of Data Display (°C) Temperature (°C) Resistance Box (Ω) –9 99.6k –9 ±0.3...
  • Page 81 1000 ±5 Press the [MODE] key to return to normal mode. Profibus Communication Functional Check Check for normal function using Profibus equipment specified by Yokogawa. In the tests of Item 3.3 to 3.5, check the communication function using Profibus communication. DO202...
  • Page 82 Appendix 2-17 IM 12J05C01-01E...

  • Page 83: Parts List

    Customer Model DO202G [Style: S2] Maintenance Disolved Oxygen Transmitter Parts List Item Part No. Description Cover Assembly K9315CA Polyurethane Coating K9315CN Epoxy-polyester Coating Internal Works Assembly with amplifier assembly K9662AD For mA + HART K9662AE For FF K9662AF For Profibus...
  • Page 84 Pipe/Wall Mounting Hardware (Option Code : /U) Panel Mounting Hardware (Option Code : /SCT) Option Code : /H Hood to sun protection (Option Code : /PM) Item Parts No. Description K9171SS Universal Mount Set (/U) K9311BT Tag Plate (/SCT) K9311KA Fitting Assembly (/PM) K9311KG Hood Assembly (/H)
  • Page 85 Customer Model DO202S [Style: S3] Maintenance Disolved Oxygen Transmitter Parts List Item Part No. Description Cover Assembly K9315CA Polyurethane Coating K9315CN Epoxy-polyester Coating Internal Works Assembly with amplifier assembly For mA + HART For FF For Profibus For mA + HART (Non-incendive) Housing Assembly Polyurethane Coating Epoxy-polyester Coating...
  • Page 86 Pipe/Wall Mounting Hardware (Option Code : /U) Panel Mounting Hardware (Option Code : /SCT) Option Code : /H Hood to sun protection (Option Code : /PM) Item Parts No. Description K9171SS Universal Mount Set (/U) K9311BT Tag Plate (/SCT) K9311KA Fitting Assembly (/PM) K9311KG Hood Assembly (/H)

  • Page 87: Revision Record

    Revision Record Manual Title : Model DO202G [Style: S2], DO202S [Style: S3] 2-wire Dissolved Oxygen Transmitter Manual Number : IM 12J05C01-01E Edition Date Remark (s) Mar. 2007 Newly published Oct. 2007 PREFACE-1, Some of warning description modified; P. 1-1, Some of nameplate in Figure 1-1 changed;...
  • Page 88 2-Wire Dissolved Oxygen Transmitter Manual Supplement Thank you for selecting our Model DO202G [Style: S2] and/or DO202S [Style: S3] 2-Wire Dissolved Oxygen Transmitter. User's Manual, IM 12J05C01-01E, 4th Edition, supplied with the product, some revisions/additions have been made. Please replace the corresponding pages in your copy with the attached, revised pages.
  • Page 89 Yokogawa is not responsible for damage to the shock, such as if the instrument is dropped. Handle instrument, poor performance of the instrument with care.
  • Page 90 Class I, Zone 0, AEx ia IIC and with simulated inputs, because the Temp. Class: T4, Amb. Temp.: -10 to 55°C Intrinsically Safe Apparatus Parameters DO202G can be used with many different Vmax=31.5 V, Imax=100 mA, Factory sensors with their unique characteristics.
  • Page 91 Calibration Procedure 6-3 6-3. Calibration procedure using water calibra- If both zero and span calibration are used, it is bet- tion method ter to start with span calibration in spite of normal 6-3-1. Preparation calibration sequence with analog instrumentation. Move the sensor to a maintenance site and wash Otherwise the sensor must be rinsed off carefully to off any dirt on the membrane.
  • Page 92 User’s Supplement Manual Model DO202G [Style: S2], DO202S [Style: S3] 2-Wire Dissolved Oxygen Transmitter This is a conforming product to KC marking (Korean Certification). Certification No.: KCC-REM-YHQ-EEN242-4 EQUIPMENT NAME : 2-Wire Dissolved Oxygen Transmitter Conductivity DO202G, DO202S DATE OF MANUFACTURE : See the nameplate of the product.

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