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1. 7 2 7 2 1 Wiping off Front Cover Window uu eee eee cseeseceeeeseceecesecneenseeereeeeees 7 2 7 2 2 Inspection of Degree of Dryness Within the Converter 0 0 00 eee 7 2 1 23 Replacement of FUSE srsti scscsvesbasesehavdvadeas sasssbetedesvensesdycsseeveaeseess 7 2 Troubleshoot icsc 5civecsietiycespectinasiietpecs ashes Geass aoc ee ROL 8 1 Corrective Actions in Case of a Converter Malfunction ccecsseesseeeerees 8 1 8 1 1 Case Where ORP Converter Fails to Function 00 ccccscessesceeesseceereees 8 1 8 1 2 Case Where Problems are Found with Operation Keys or Displays 8 1 8 2 Corrective Actions in Case of Failure Error Detection ccecsseeeseeeeerees 8 2 vi IM 12C4C1 01E 8 3 Corrective Actions in the Case of a Measurement Failure E Worksheet for Operation Parameter Setting scccsscccssssccsssscsssscssssscsssscsssesees I Customer Maintenance Parts List cccccccssssssssssssssssssssseeees CMPL 12C04C01 01E REVISION RECORD occccscescccssctscccscscccvecesessccssccascccecescacdcaceseessssesssnessececcscdsceccceceseececsesesssssovescosesed I IM 12C4C1 01E vii 1 Procedures for Key Operation 1 Procedures for Key Operation This chapter introduces the basic patterns of key operation fer the OR400G ORP Converter These key operations are introduced to demonstrate how to use the keys and how to check the performance of the instrument before ins
2. 80 144 Cable inlet port 13 5 dia holes 36 For JIS A8 cable gland Cable inlet port 21 dia holes equivalent to JIS A15 cable gland For output signal contact input For sensor cable For power supply For contact output S1 and S2 For contact output S3 and FAIL 38 lt wo D moov F2 3E eps Ground terminal M4 screw Adapter for conduit work option code AFTG ANSI Unit mm Lo 1O Adaptor 3 49 Q lt G 1 2 female AFTG 1 2 NPT female ANSI F2 4E eps 2 6 IM 12C4C1 01E 2 Overview Pipe Mounting Bracket Wall Mounting Bracket option code U Example of bracket used for pipe mounting 1 Bg gt Unit mm CI 174 i ll A 50 Yy Nominal 50 A O D 60 5mm mounting pipe Example of bracket used for wall mounting i 135 T 13 M6 4 screws 224 200 y 10mm dia 3 holes ee Mounting Bracket option code PM 23 t ae max panel thickness M64 Screws niten 100 137 137 Panel cutout dimensions F2 6E eps IM 12C4C1 01E 2 7 3 Installation and Wiring 3 Installation and Wiring The OR400G ORP Converter must be installed in a location where the operator can view the display
3. Setting of Burn up down function IN X L 0 OFF 1 Burn up 2 Burn down Pressing the MODE key enters the measurement mode or hold selection mode F5 12E eps Figure 5 12 Flow for Operating with Mode for Setting Burn up down Function 5 14 IM 12C4C1 01E IM 12C4C1 01E 5 Parameter Setting CODE 07 Mode for Setting Automatic return to measurement mode Function RET Setting upon shipment 1 ON This mode allows the converter to automatically return to the measurement mode if no key operation is performed for 10 minutes one hour if the converter is under calibra tion at each level In this mode select either ON or OFF of the automatic return to measurement mode function If you enter CODE 07 to go into this mode the message display shows RET The converter then asks you to select either ON or OFF of the automatic return to measure ment mode function If you want the function turned off press the ENT key with 0 shown on the data display If you want the function turned on press the ENT key with 1 shown on the data display Figure 5 13 shows the flow for operating with the mode for setting this function Selection between ON OFF of automatic return to measurement SERVICE mode function N L 0 OFF 1 ON F5 13E eps Pressing the MODE key enters the measurement mode or hold selection mode Figure 5 13 Flow for Operating with Mode for Setting Automatic return to
4. Adjust the length of the portion of the cable housed within the converter and fix the cable by reassembling the parts through which the cable passes to the cable gland After connection to the external wiring terminals described in Subsections 3 2 1 to 3 2 7 is completed mount the terminal cover IM 12C4C1 01E 3 11 3 Installation and Wiring 3 2 8 Ground Wiring 3 12 The grounding terminal is located on the left side of the case as shown in Figure 3 10 Ground the terminal using a wire having a nominal cress section of 2 mm or more complying with JIS class 3 grounding the ground resistance must be 100 Q or less The terminal screw is M4 threaded Attach a crimping terminal lug matching the M4 screw to the tip of the wire a Grounding terminal screw M4 pne Washer T Grounding wire nominal cross section of 2 mm or more F3 10E eps Figure 3 10 Grounding Terminal A CAUTION If grounding is not possible from the converter case ground the converter at the power supply using the power cable conductor In this case use a three conductor cable or a two conductor shielded cable for power supply wiring and connect the grounding conductor to terminal for grounding in the converter IM 12C4C1 01E 4 Operation 4 Operation This chapter describes the operation of the ORP Metering System by mainly referring to the operating procedures for the OR400G ORP Converter 4 1 Preparing for Operation Ready
5. Automatic manual cleaning cleaning cleaning Press the YES key to select manual cleaning Press the YES key to turn off the timer OFF Press the YES key to turn on the timer 0 1 to 36 0 h 10 0 h 0 1 to 10 0 min 0 1 min Relaxation time mi 0 1 to 10 0 min 0 2 min T5 2E eps Note The contact outputs S1 S2and S3 are all turned off with CODE14 CODE15 and CODE16 at the service level Remarks The values in parentheses under Default become effective only when their respective functions are tuerned on 5 4 IM 12C4C1 01E 5 2 3 Items Set at Service Level 5 Parameter Setting At the service level you can select the appropriate code number to mode Table 5 3 Items Set at Service Lever Mode Setting Item Display Remarks conditions Defaut CODE03 Mode for setting asymmetric potential check function Selection between ON OFF CODE05 Burn up down function setting mode Selection between ON OFF CODE07 Mode for setting automatic return to measurement mode Selection between ON OFF CODE12 Mode for setting output signal transmission Selection between ON OFF CODE14 Mode for setting the function of contact output S1 Selection of function Type of high low limit alarm output CODE15 Mode for setting the function of contact output S2 Selection of function Type of high low limit alarm output CODE16 Mode for setting the function of contact output S3 Sel
6. During the warranty period for repair under warranty carry or send the product to the local sales representative or service office Yokogawa will replace or repair any damaged parts and return the product to you Before returning a product for repair under warranty provide us with the model name and serial number and a description of the problem Any diagrams or data explaining the problem would also be appreciated If we replace the product with a new one we won t provide you with a repair report Yokogawa warrants the product for the period stated in the pre purchase quotation Yokogawa shall conduct defined warranty service based on its standard When the customer site is located outside of the service area a fee for dispatching the mainte nance engineer will be charged to the customer In the following cases customer will be charged repair fee regardless of warranty period e Failure of components which are out of scope of warranty stated in instruction manual e Failure caused by usage of software hardware or auxiliary equipment which Yokogawa Electric did not supply e Failure due to improper or insufficient maintenance by user e Failure due to modification misuse or outside of specifications operation which Yokogawa does not authorize e Failure due to power supply voltage frequency being outside specifications or abnormal e Failure caused by any usage out of scope of recommended usage e Any damage
7. iei laon tile aii 6 1 6 1 2 Manual Calibration cccccecesccesssecesecceesseeceseseecsesceeseeecsesaeeeseeeesssneeenenees 6 1 6 1 3 Checkup Solution sssi sreo wasssessscessassbsscascssgehecvascbvcbsenssessstasesssasusabssesstans 6 1 6 1 4 Errors Occurring in Calibration ssseeseseeeeseeeeseseesrseesrsresrerrsseerssrerrsreeesreeee 6 1 6 2 Electrode Checkup Manual Calibration Emf Correction Procedure 6 2 6 2 F Preparation s scsss sscisesusasscscgencesss cists os egeebsgeh E e odie cb EEE eaa a EE ESS 6 2 6 2 2 Electrode Checkup Operation essssesseseeeesseeessseesesresrsrrsrerrsseerssreresreersrese 6 3 6 2 3 Manual Calibration Emf Correction cceccceeseceseseeceeeceeseeeeesseeeenenees 6 3 6 3 Manual Calibration Tune in Procedure cccccsscecssseceseseeceeececseeeeeeseeeenenees 6 4 6 3 1 Preparation escccs ee teisit treisi nie eves dee ses Alani Reese Baek 6 4 6 3 2 Manual Calibration Tune in cecccecsssceeesseecsecceeesseeceeaeecseeeeessseeenenees 6 4 7 Inspection and Maintenance cccccscscccsssccsssscesssscssssscssscccsscsssssssssssssssssssssessssseces 771 7 1 Regarding Overall 4 wire ORP Metering System oe eeeeeetneeeseenees 7 1 7 1 1 Inspection and Maintenance to be Implemented Periodically 7 1 7 1 2 Inspection and Maintenance to be Implemented on Occasion 7 1 7 2 Inspection and Maintenance Procedure for OR400G ORP Converter
8. measurement mode Function CODE 12 Mode for Setting Output Signal Transmission Function mA COD Setting upon shipment 1 ON This function controls the transmission of a 4 to 20 mA DC output signal If the function is set to OFF the converter transmits a fixed signal of 3 6 mA If the function is set to ON the converter transmits a signal of 4 to 20 mA DC appropriate for the given measuring range If you enter CODE 12 to go into this mode the message display shows mA COD The converter then asks you to select either ON or OFF of the output signal transmission function If you want the function turned off press the ENT key with 0 shown on the data display If you want the function turned on press the ENT key with 7 shown on the data display Figure 5 14 shows the flow for operating with the mode for setting this function x CODE Selection between ON OFF of output signal transmission function IN SERVC mA COD ENT X L 0 OFF Pressing the MODE key enters the 1 ON measurement mode or hold selection mode F5 14E eps Figure 5 14 Flow for Operating with Mode for Setting Output Signal Transmission Function 5 15 5 Parameter Setting CODE 14 Mode for Setting the Function of Contact Output S1 Setting upon shipment 0 0 Contact output S1 can be used as the high low limit alarm for a measured ORP value or as a hold setting signal In this mode select the fun
9. PM is specified Shading hood K9664CA Attached when option code H3 is specified Shading hood K9664CC Attached when option code H4 is specified Tag plate Y9412NP Attached when option code SCT is specified Conduit adpter Y9313PN Attached when option code AFTG is specified Conduit adpter Y9313PW Attached when option code ANSI is specified T2 5E eps IM 12C4C1 01E 2 5 Customer Model OR400G EDA oF Maintenance 4 Wire ORP Metering System Parts List ORP Converter LIS Q ANASSSAVALS SELVA foe N NJ Item Part No Qty Description 1 K9313PS 1 Fuse Time Lag Fuse 2 B1002JZ 4 Cable Gland 3 K9334CN 3 Insert 4 K9141TX 4 Fitting for Option Code AFTG K9311KQ 4 Adapter for Option Code ANSI 5 1 Terminal Cover 6 1 Screw 7 K9313DW 1 Cover Assembly 8 Y9101XA 4 O Ring 9 Y9420LU 4 Screw YOKOGAWA All Rights Reserved Copyright 1995 Yokogawa Electric Corporation COMPL 12C04C01 01E Subject to change without notice 2nd Edition July 2001 YK Yokogawa Electric Corporation Pipe Wall Mounting Hardware 2 Option Code U Sun Protection Cover Option Code H3 H4 Panel Mounting Hardware Option Code PM Item Part No Qty Description 1 K9171SS 1 Mounting Set U 2 Y9608KU 4 Screw 3 DO117XL A 1 U Bolt Assembly 4 K9171SY 1 Plate 5 K9171SX 1 Bracket 6 K9171ST 1 Mounting Set PM 7 Y9520LU 2 Screw 8 K9171SW
10. claeaning does not start even if the cleaning start time is reached when the FAIL contact output is on Figure 4 3 Output Timing of Cleaning Contact Signal S3 and Holding of Output Signal Procedure for Canceling E11 Error Error in Return to half value Time An E11 error can be canceled by key operation at CODE 25 on the service level Errors other than E11 cannot be canceled unless the system recovers to normal operation F4 3E eps 4 6 IM 12C4C1 01E 4 Operation 4 2 Steady Operation Normally it is not necessary to adjust the OR400G ORP Converter except when you check the electrode periodically In principle also check and service the sensor when you check the electrode This is not true however if any failure should occur mean while 4 2 1 Corrective Actions Against Failure If the OR400G ORP Converter detects a failure the FAIL contact output turns on If the Burn up down function is active the output signal either burns up current output 22 mA or burns down current output 3 6 mA The content of the failure is given in the data display through an error number If a failure occurs confirm the details of the failure and take prompt corrective action Table 4 1 summarizes the error numbers for failures occurring in the measurement mode For details on each failure see Section 8 2 Table 4 1 Failures Occurring in Measurement Mode Error No Cause of Failure Corrective Action E9 Failure in mea
11. replace it with a new one If fuses frequently blow and the cause is not clear request an inspection by Yokogawa If the fuse is normal examine the wired cables 8 1 2 Case Where Problems are Found with Operation Keys or Displays If the operation keys do not operate smoothly or the display fails e g a character segment does not light up the printed circuit board digital board must be repaired or replaced with a new one After the printed circuit board has been replaced operation checks and parameter settings are necessary Contact Yokogawa and request board replacement work If you want to check the software version select CODE 23 at the service level Display of software version YES MODE Pressing the MODE key enters the measurement mode or hold selection mode Pressing the MODE key enters the measurement mode or hold selection mode ae 1E eps Figure 8 1 Operation to Show Software Version IM 12C4C1 01E 8 1 8 Troubleshooting 8 2 Corrective Actions in Case of Failure Error Detection If a failure is detected through a selfdiagnosis of the OR400G ORP Converter the FAIL contact signal turns on Also the FAIL lamp on the operation panel lights up and an error number appears in the message display However in the case of type E2 E17 and E19 errors neither the lt FAIL gt lamp nor the FAIL output signal turns on except that an error number appears in the message display A T
12. 2 Bracket 9 Y9608KU 4 Screw 10 Sun Protection Cover K9664CA 1 Cabon steel H3 K9664CC 1 Stailess steel H4 CMPL 12C04C01 01E 2nd Edition Jan 2001 YK
13. F5 7E eps Figure 5 7 Flow for Operating with Measuring Range Setting Mode The applicable range and factory set default of each parameter in this mode are given as follows Entering a value exceeding the limits causes a type E19 error to occur 4 mA setting upon shipment 1500 mV Setting range 1500 to 1500 mV 20 mA setting upon shipment 1500 mV Setting range 1500 to 1500 mV Associated Setting Mode On off of output signal transmission CODE 12 at service level IM 12C4C1 01E 5 9 5 Parameter Setting 5 3 2 3 SET HD Hold Parameter Setting Mode SET HOLD Setting Procedures 1 Selection Between ON HLD ON and OFF HLD OFF of Hold Function 5 10 For the parameters for holding the output signal determine 1 Whether the hold function is turned on HLD ON or turned off HLD OF 2 Which value you choose when the hold function is turned on the value immediately before holding HD LST or the fixed value HD FIX 3 At what value of current you want the output signal to be held when a fixed value is selected If the hold function is turned on the output signal holds at a given value when the converter is set to the setting or service level or when automatic cleaning or calibration is carried out Figure 5 8 shows the flow for operating with the hold parameter setting mode YES Selection between the value immediately before holding YES or the fixed value Setting of
14. OFF T02C EPS Contact ON OFF a S1 S2 S3 b FAIL Power Power ON OFF ON OFF i ON Closed ON Closed Action Open Action Closed OFF Open OFF Open T02D EPS When closed each indicator lamp is lit corresponding to each contact status Contact type Relay contact output dry contact Contact rating 250 V AC 2 A Max 100 VA 220 V AC 2 A Max 50 W Contact input Supports manual starting of auto wash functions Power supply voltage 88 to 132V AC or 176 to 264V AC at 50 60Hz 2 2 IM 12C4C1 01E 2 Overview Power consumption approx 8 5VA Operating temperature 10 to 55 C Operating humidity 10 to 90 RH Storage temperature 30 to70 C Construction Watertight complying with JIS C0920 equivalent to NEMA 4 water proof construction Materials Case Aluminum alloy casting Cover and Window Polycarbonate Finish Baked polyurethane resin finish Color Cover Deep sea moss green Munsell 0 6GY3 1 2 0 equivalent Case Frosty white Munsell 2 5Y8 4 1 2 equivalent Mounting 50A dia vertical or horizontal pipe wall rack or panel Condition of Installation Installation is possible inside or outside Concerning its condition see chap 3 1 Electrical connections ORP sensor 13 5mm dia hole plastic gland watertight to JIS A8 equivalent Power contacts and output 21mm dia use cable of 9 to 12 mm dia
15. See page 5 16 0 0 See page 5 17 0 0 See page 5 17 0 0 See page 5 18 0 2 s 10 mV See page 5 19 0 0 1 mV See page 5 20 0 T5 3E eps Remarks The values in parentheses under Defaults become effective only when their respective functions are tuened on IM 12C4C1 01E 5 5 5 Parameter Setting 5 3 Setting Procedures The setting mode can be selected by moving and positioning the pointer or by cycling through the menu items on the message display MEASURE MODE note 1 MODE E O owe YES seasesieees X 7 YES lt MAN CAL MAN CAL gt START SETPOINTS SETP SETP 1 No YES p ol YES DISPLAY DISP mA XX X OUTPUT OUTPU cere rs NO NO YES note 2 SETHOLD J SETHDE x HLD OF YES HOLD HOLD HOLD ON oan NO ges INO VES INO C wasu wasn b auto NO YE YES note 1 SERVICE SERVC l 00 CODE i C Pointer indication L Represents an indication in the message display the upper line of a two line indication represents an indication in the data display A square box with borld borders indicates that the converter is in that mode note 1 Under a specific condition this operation may switch to F5 3E eps the hold setting mode of the operation level note 2 Skipped if the corresponding function is turned off Figure 5 3 Switching Between Setting Modes IM 12C4C1 01E 5 6 5 Parameter Setting 5 3 1 Param
16. addition degraded insulation of the wiring terminals may lead to a failure to obtain correct measurements 7 2 3 Replacement of Fuse It is recommended that the fuse in tine converter be replaced every one to two years A CAUTION Be sure to turn off the power before you attempt to replace the fuse The fuse is located on the printed circuit board deep inside the ease see Figure 7 1 Rotate the fuse holder cap the fuse is attached counterclockwise and pull it forward to remove it Use a fuse with a rating meeting the specification Fuse Fuse holder cap ag Figure 7 1 Fuse of Converter 7 2 IM 12C4C1 01E 8 Troubleshooting 8 Troubleshooting This chapter describes the countermeasures for failures classifying the cases into three categories OR400G ORP Converter failure detection of failure with the selfdiagnosis function and abnormal measurements The causes for abnormal measurements are not always limited to equipment failures If an abnormal phenomenon occurs first check whether The property of the measured solution is different from normal The ORP sensor is installed properly 8 1 Corrective Actions in Case of a Converter Malfunction 8 1 1 Case Where ORP Converter Fails to Function lf the converter does not operate even when the power is turned on one cause may be a blown fuse inside the converter First turn off the power and examine the fuse see Subsection 7 2 3 on page 7 2 If the fuse is blown
17. calibration of the ORP Metering System is carried out in the following cases Electrode Checkup When a new ORP sensor is used or after a prolonged shutdown When the ORP sensor electrode or wetted part is cleaned Calibration When the emf of the sensor exceeds tolerable limits When the measured value of the converter needs to be adjusted to that of another instrument This chapter describes the procedure for calibrating the 4 wire EXA OR series ORP Metering System mainly for operation of the OR400G ORP Converter 6 1 General 6 1 1 Electrode Checkup Measure a solution with a known oxidation reduction potential checkup solution and check whether the measured value falls within tolerable limits Check the electrode in the measurement mode The electrode can also be checked in the MAN CAL mode at the operation level 6 1 2 Manual Calibration Manual calibration calibrates the OR400G ORP Converter using a solution with a known ORP value so the converter indicates that value Manual calibration is carried out to adjust the measured value of the OR400G converter to that of another instrument It is also carried out when as the result of an electrode checkup the measured value is slightly off from the tolerable limits Calibration is performed in the MAN CAL mode at the operation level 6 1 3 Checkup Solution To check the electrode use a solution with a known oxidation reduction potential A quinhydrone or ferrous solutio
18. copy On p 2 5 Additions of option code SPS for teflon coated SUS screws and accessories Some revision of CMPL 12C04C01 01E 2nd edition All Rights Reserved Copyright 2007 3rd Edition Apr 2013 YK IM 1 2C4C1 01 E YOKOGAWA amp Subject to change without notice g 3rd Edition Yokogawa Electric Corporation 2 Overview Items detected by self diagnostics ORP measurement value abnormal Zero point shift abnormal Settling time abnormal EEPROM abnormal 2 2 2 Model and Codes Model Suffix Code OPtion Specifications Code OR400G Oi i ee a ery 4 wire ORP Converter Power supply 1 crrtttttts 100 110 V AC 50 60 Hz voltage 2 fossssssese 200 220 V AC 50 60 Hz Language for J Joessssssess Japanese warning etc J E ererrerres English PIETE Always A Option Mounting hardware U Pipe mounting bracket PM Panel mounting bracket Hood H3 Awning hood carbon steel H4 Awning hood stainlss steel X1 Epoxy baked finish Tag plate SCT With stainless tag plate Conduit Adapter AFTB G1 2 1 2NPT Teflon coated SUS steel screws T14 EPS Part Number Label for contact signals K9313PC For display on the operation panel Spare fuse K9313PS 0 1 A for either a 100V or 200V power line Pipe wall mounting bracket K9171SS Attached when option code U is specified Panel mounting bracket K9171ST Attached when option code
19. normally and operate keys properly This chapter explains how to select such a location and install and wire the converter 3 1 Installation 3 1 1 Selection of Location IM 12C4C1 01E The OR400G ORP Converter can be installed both inside and outside Install the OR400G where the following conditions are met Near the ORP sensor Consider the cable length of the sensor the converter is to be combined with including a dedicated extension cable Even if relay terminal boxes are used it is recommended that the total length of the sensor cable and the extension cable be within 25 m No presence of corrosive gases Corrosive gases are not desirable because they may damage the electrical components in the converter Little mechanical vibration Vibration may loosen the connections of the external wiring Normal temperatures with only small fluctuations It is necessary for the temperature not to exceed the range of 10 to 55 C Humidity maintained between 10 to 90 RH Avoid choosing a location likely to be exposed to abnormally high or low humidity over a prolonged period It is recommended that the converter be used at a humidity between 25 to 85 RH No exposure to direct sunlight Direct sunlight may raise the temperature in the converter to abnormal levels If direct sunlight cannot be avoided use a hood for shading optional 3 1 3 Installation and Wiring 3 1 2 Preparation for Installation 3 1 2 1 Assembl
20. of use and the measuring conditions This chapter describes the parameter setting procedures 5 1 Setting Operation Summary 5 1 1 Operation Setting and Service Levels Parameters can be set by selecting the appropriate mode These modes are classified into three levels the operation setting and service levels Operation Level This is basically a level used to perform operations relating to routine inspection and or maintenance manual calibration electrode checkup etc Key operations can be done externally with the front cover mounted only at this level This level allows selection of items appearing on the message display Setting Level There are modes at this level for setting data related to output signals and contact outputs Service Level The OR400G ORP Converter has a number of functions At this level there are modes to select the functions necessary for system operation Measurement mode measuring operation Operation level i MAN CAL mode Operation for manual calibration 7 Selection of items to be shown 1 DISPLAY mode in the message display I Selection of on off of a HOLD mode output signal hold Setting level aoa Setting of output signals Setting data for output signal hold Setting of cleaning data SERVICE Selection of execution stop of CODE mode selection amp 2ch function 03 05 07 12 14 Caution 15 16 17 21 22 Never change the mode 23 25 settings wit
21. operated in a mode other than the measure ment mode the converter operates in the measurement mode If the output signal hold function is active at that time the converter goes into the hold selection mode at the operation level 1 Display in HOLD Selection Mode 2 Display in Measurement Mode EEA mV EE i HOL DONS In the hold selection mode HOLD ON appears Pressing either the YES or NO key in the in the message display and YES and N in the key display shown in 1 goes to the measurement operation displya flash If the current status is mode hold HOLD appears also in the display F5 2E eps Figure 5 2 Displays When MODE Key is Pressed in Mode Other Than Measure ment Mode 5 1 2 3 Automatic Return to Measurement Mode If no key operation is performed for 10 minutes the converter in maintenance operation automatically returns to the measurement mode If the converter is in the lt MAN CAL gt mode however this time is one hour This automatic return is effective only when the function is on no automatic return takes place otherwise IM 12C4C1 01E 5 Parameter Setting 5 1 3 Points to be Noted in Implementing Setting If any change has been made to a particular data item check its relationship with data items set in other modes so that there will net be any inconsistency 1 Items to Cheek When the Measuring Range Is Changed a High low limit high high low low l
22. output S1 Selection of function type of output 0 0 OFF Mode for setting the function of See page 5 17 contact output S2 Selection of function type of output 0 0 OFF Mode for setting the function of See page 5 17 contact output S3 Selection of function type of output 0 0 OFF Mode for setting delay time and See page 5 18 hysteresis of alarm contact output Delay time setting D TIME 0 2 s Hysteresis setting HYST 10 mV Mode for setting function to check See page 5 19 return to half value time Selection between ON OFF HT CHK 0 OFF Setting of allowable return to half HT min 0 1 min value time Mode for setting type of electrode s See page 5 20 reactive element Setting of reactive element Sb SEN 0 precious metal SerPara E eps IM 12C4C1 01E i Worksheet for Operation Parameter Setting Setting level SETPOINTS Alarm point setting mode SETP See page 5 8 Alarm point setting of contact output S1 SETP 1 500 mV Alarm point setting of contact output S2 SETP 2 500 mV High low limit alarm point setting of SETP 3 250 mV contact output S3 Low low limit alarm point setting S3 LOW 1000 mV of contact output S3 H
23. the key operation sisplay pressed in answer to the indication in 1 are flashing As soon as the pointer stops flashing the This indication means Do you want to do message display changes to START a manual calibration Please answer by indicating that the cover has entered pressing the YES or NO key the manual calibration mode Figure 1 4 Examples of Indication at Operation Level 2 Press the NO key for the display in Figure 1 4 1 Each time you press the NO key the display changes After you have cycled through a round with this key operation the converter returns to the display shown in Figure 1 4 1 IM 12C4C1 01E 1 3 1 Procedures for Key Operation 1 3 2 Operation to Switch to Setting Level CX SEE ALSO For more information see Section 5 3 To switch to the setting level remove the front cover In the measurement mode press the gt key setting level selection 5ETP Pana HOLD This symbol appears when the converter is at the setting or service level When you press the key a display appears meaning Do you want to change to the alarm point setting mode Please answer by pressing the YES or NO key 2 MEASURE SETPOINTS RANGE MAN CAL DISPLAY SET HOLD WASH DATA HOLD SERVICE C2 If you press the YES key in Figure 1 5 1 the converte
24. to set the delay time Using the gt or the a key show the value being set in tine data display and then press the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 0 1 to 19 9 s 2 Hysteresis HYST Setting Setting upon shipment 10 mV When you enter the delay time the message display changes to show HYST Using the gt or the A key show the value being set in the data display and then press the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 0 to 1500 mV 5 18 IM 12C4C1 01E 5 Parameter Setting CODE 21 Mode for Setting Function to Check Return to half value Time The converter has a function to check whether the ORP value of a measured solution has returned to the median value between the value immediately before cleaning and the value during cleaning within the allowable time range after automatic cleaning function to check the return to half value time Use this function if the ORP value of a cleaning solution largely differs from that of a measure solution as a rule if the difference is greater than 10 of the span In this mode select either ON or OFF for this function If you have selected ON set the allowable return to half value time When the function is turned on a type E11 error occurs if the ORP value fails to return to the half value within the allowable
25. value given as a current HLD mA D N ENT 500 Notei HLD mV Note 1 This parameter voltage output siganal is not used F5 8E eps Consequently values set for this parameter have no significance g Figure 5 8 Flow for Operating with Hold Parameter Setting Mode Setting upon shipment ON When you enter the hold parameter setting mode either HLD OF or HLD ON appears in the message display If the message isn t the correct one press the NO key to change to the other message and then press the YES key If you have selected ON HLD ON the output signal hold selection mode at the operation level also turns on The converter automatically goes into that mode when you return from the setting service level to the measurement mode For more information see item 5 3 1 2 on page 5 7 2 Selection Between Value Immediately Before Holding HD LST or Fixed Value HD FIX Setting upon shipment value immediately before holding If you select ON HLD ON either HD LST or HD FIX appears in the message display If you want the output signal fixed at the value immediately before holding press the YES key with the message HD LST value immediately before holding shown on the display If you want the output signal fixed at any desired value press the YES key with the message HD FIX fixed value shown on the display If the current message is not what you want press the NO key to change to ano
26. 1 Terminal Cover 6 1 Screw 7 K9313DW 1 Cover Assembly 8 K9221US 4 O Ring 9 Y9420LU 4 Screw YOKOGAWA All Rights Reserved Copyright 1995 Yokogawa Electric Corporation COMPL 12C04C01 01E Subject to change without notice 2nd Edition July 2001 YK Yokogawa Electric Corporation Option Code U Pipe Wool Mounting Hardware CMPL 12C04C01 01E Part No K9171SS Y9608KU DO117XL A K9171SY K9171SX K9171ST Y9520LU K9171SW Y9608KU Option Code PM Panel Mounting Hardware Qty Description lt a a A a Mounting Set Screw U Bolt Assembly Plate Bracket Mounting Set Screw Bracket Screw 2nd Edition Jan 2001 YK Revision Record Manual Title 4 wire ORP metering System Model OR400G ORP converter Manual Number IM 12C4C1 01E Edition Date Remark s Ist Oct 1995 Newly published 2nd Nov 2006 IM Style amp Format is renewed Revised and Corrected all over After sales warranty added etc 3rd Aug 2007 p ii Revisions of IM No to be refered p 2 5 Additions of option code H3 and H4 for awning hood deletion of H and revisions of accessories p 2 6 Revisions of OR400G external dimensions for H3 and H4 awning hood User s Manual Mode OR400G ORP Converter Supplement Thank you for selecting our Model OR400G ORP Converter The Instruction Manual IM 12C4C1 01E 3rd edition supplied with this product has been amended as follows please make a note in your
27. 4 8 4 3 2 Measures for Restarting eiis ec ec ceseeeecesceeeceeceeeeeeeeeeeeseeseecsessaecasenaeenees 4 8 5 Parameter Setting caiecaisesidsenec svaeceascnnsvsutenececeseceos saascergdeuossneesavecs oopcaveveusssencecsavooeeeeay DL 5 1 Setting Operation SUMMATY iressisse rires hse pepsi eee ceseeeeceeeeeeeeseeeeesaeeeeecaeesaecaeeaeenees 5 1 5 1 1 Operation Setting and Service Levels eee cee cee ceeeeceeeeeeeeeeeees 5 1 5 1 2 Key Operations disein pona nnota seke ase heh asies ae S deiies 5 2 5 1 3 Points to be Noted in Implementing Setting essseeesseeeeeseeeerseeereseeerreesen 5 3 5 2 Setting Itens ortet a a a a e EO a Sueno NE S 5 3 5 2 1 Setting Items at Operation Level eseseesessesessseesesresrsresrrrrssrerssrerrsrrersrese 5 3 52 2 Items S tat Setting Level ar repe eonen aee ae pe Ea ES nE E REES EEA 5 4 5 2 3 Items Set at Service Level siise Biierger erori eser isn oriee inini re oeaan 5 5 5 3 Setting Procedures iire cia se dvsen beter hens ER E E EE SRE E 5 6 5 3 1 Parameter Setting at Operation Level ssesseeesssessrseisreersererssreresresrsrrsen 5 7 5 3 2 Parameter Setting at Setting Level ssessesseeesseresssssrsrssreersreersrreresrsresesse 5 8 5 3 3 Parameter Setting at Service Level 0 eeceeseeeeecreeesecreessecssesaeenees 5 13 6 Electrode Checkup Calibration Procedure sseescoessscsssccssocesocesoosssocsssecssocssoosssossss L Ol GONG a sennie aE R EEE E AE EE 6 1 6 1 1 Electrode Checkup
28. S key in Figure 1 5 2 changes Pressing the ENT key enters the displayed value the display to look like this eah Figure 1 6 Examples of Display During Data Setting 1 5 2 Overview 2 Overview This chapter gives an overview of the EXA OR series 4 wire ORP Metering System and the specifications for the OR400G ORP Converter 2 1 EXA OR series 4 wire ORP Metering System 2 1 1 ORP Sensor The ORP sensor detects a potential generated by the oxidation reduction reaction of a solution ORP sensors include OR8EFG and OR8ERG sensors suited for a regular process and HA485 DPA485 and DPAS485 sensors used for a special process OR8EFG ORP sensor 2 1 2 OR400G ORP Converter The OR400G ORP Converter A to D converts the oxidation reduction potential received from an ORP sensor to indicate it in digital form It outputs the potential as an analog signal of 4 to 20 mA DC The converter is provided with a variety of operation parameter setting functions necessary to measure and control an oxidation reduction potential as well as selfdiagnostic functions Equipment configuring the ORP Metering System includes holders to support the ORP sensor and a relay terminal box with a dedicated extension cable used if the sensor is located away from the converter There are three types of holders a guide holder flow through type holder and submersion type holder These are selected depending on the measurement conditions The flow throug
29. See Chapter 6 4 4 IM 12C4C1 01E 4 Operation 4 1 5 Operation Check When an electrode checkup or manual calibration is complete return the ORP sensor and other equipment to where they were installed initially for system operation Place all the equipment configuring the measurement loop in operation Continue doing a test run for a while After confirming that there are no problems in the entire system place it in steady operation For reference the following summarizes the setting functions signals of the OR400G ORP Converter used to obtain optimum operating conditions 4 1 5 1 Functions Related to Output Signal Normally the output signal is held at the value immediately before or at a desired value during calibration or cleaning or in the setting service level This is to prevent the output signal from adversely affecting the operation of the equipment configuring the measurement loop default setting the output signal is held at the value immedi ately before A signal hold can be canceled to have the system output real time signals actual measured values See item 5 3 1 3 on page 5 10 The output signal can be either Burned up fixed to 22 mA DC or Burned down fixed to 3 6 mA DC if for example the signal needs to be identified from a normal one when a FAIL contact signal is generated default setting no burn up down See CODE 05 on page 5 14 If necessary you can shut down fixed to 3 6 mA DC the trans
30. User s EDLA oF Manual 4 wire ORP Metering System Model OR400G ORP Converter IM 12C4C1 01E vigilantplant YOKOGAWA IM 12C4C1 01E 3rd Editi Yokogawa Electric Corporation wen INTRODUCTION The OR400G ORP Converter is used to configure the EXA OR series 4 wire ORP Metering System The use of this converter in combination with ORP Sensor OR8ERG OR8EFG or HA485 etc allows continuous measurement of ORP Oxidation Reduction Potential in a wide range of process To have the converter deliver its full capabilities read this instruction manual 1 Specification Check Upon arrival of the purchased product unpack it carefully and make sure the product is completely free from any damage that may have occurred during transport It is shipped in strict conformance to the purchaser s specifications By way of precaution confirm that the OR400G ORP Converter is the exact model you ordered Also check that all accessory components see page 2 5 are included When confirming the specifications refer to the model and suffix codes indicated on the nameplate on the instrument For a description of the model and suffix codes refer to Subsection 2 2 2 MODEL OR400G SUPPLY SUFFIX 1 J A Cy ee a ee eee STYLE eee NO Example of Nameplate 2 Before Starting Measurement 3rd Edition Aug 2007 YK The OR400G ORP Converter when put into operation under the condition in which it was delivered operates with the parameter
31. YES Contact S3 closes Setting of cleaning period P N YES Contact S3 opens Setting of cleaning time P IN Setting of relaxation time P N F5 9E eps Figure 5 9 Flow for Operating with Cleaning Parameter Setting Mode Setting Procedures 1 Selection Between Automatic Cleaning AUTO and Manual Cleaning MAN Setting upon shipment Automatic Cleaning When you enter the cleaning parameter setting mode either AUTO or MAN appears in the message display In principle select automatic cleaning AUTO if a holder with a cleaner is used Select manual cleaning MAN when you carry out cleaning manually 2 Selection Between ON T ON and OFF T OFF of Cleaning Timer Setting upon shipment OFF If you select automatic cleaning AUTO either T OFF or T ON appears in the message display If you want automatic cleaning to be carried out in the measurement mode press the YES key with the message T ON shown on the display If the current message is not what you want press the NO key to change to the other message and then press the YES key IM 12C4C1 01E 5 11 5 Parameter Setting 5 12 3 Cleaning Period INT H Setting Setting upon shipment 10 0 hours If you select ON T ON the message display shows INT H asking you to set the cleaning period Set the cleaning period in hours Using the gt or the A key show the value being set in the data display and then pres
32. able housed within the converter and fix the cable by reassembling the parts through which the cable passes to the cable gland IM 12C4C1 01E 3 Installation and Wiring 3 2 5 Wiring for High Low Alarm Contact Output This is the wiring provided to output high and low alarms as contact signals S1 and S2 This wiring can also be used to know that the output signal hold is on at the operation level The ratings of these relay contacts normally on for contact signal outputs are summarized in Table 3 1 A CAUTION Contact outputs S1 and S2 must be open when deenergized Table 3 1 Ratings of Relay Contacts for Contact Outputs DC AC Maximum allowable voltage 220V 250V Maximum allowable current 2A 2A Maximum allowable power 50W 100VA T3 1E eps 3 2 5 1 Cable to Be Used Use a cable with a finished OD of 9 to 12 mm Select either a 2 or 4 conductor cable depending on the number of signals 3 2 5 2 Connecting Procedure 1 End treat the cable Strip off about 40 mm of the insulation from the cable end and attach crimping terminal lugs conforming to an M3 screw to the tip of each conductor 2 Connect each cable conductor to the specified terminals Terminals S1 two conductors for contact output S1 Terminals S2 two conductors for contact output S2 When introducing the cable into the converter first remove the parts attached to the cable gland located at cable inlet D and pass the cable through these pa
33. act output S3 DI IN X 0 L 0 Status Pressing the MODE key enters the 1 Unused measurement mode or hold selection mode 2 Unused 0 0FF 1 Low limit alarm 2 High limit alarm 3 Hold setting signal 4 Cleaning signal F5 17E eps 5 High high limit Low low limit alarm Figure 5 17 Flow for Operating with Mode for Setting the Function of Contact Output S3 IM 12C4C1 01E 5 17 5 Parameter Setting CODE 17 Delay Time D TIME and Hysteresis HYST Setting Mode If the high low limit alarm or high high low low limit alarm is set with either CODE 14 CODE 15 or CODE 16 the delay time and hysteresis must also be set Figure 5 18 takes a low limit alarm as an example to show how the delay time and hysteresis work Low limitalarm RA _Hysteresis setpoint Measured Value Delay time Delay time Contact g Contact siganal OFF signal ON Contact siganal OFF F5 18E eps Time gt Figure 5 18 Delay Time and Hysteresis for Alarm Contact Output example of low limit alarm Delay time setting gt N ENT Hysteresis setting gt ENT Pressing the MODE key enters the measurement mode or hold selection mode F5 19E eps Figure 5 19 Flow for Operating with the Mode for Setting Delay Time and Hysteresis 1 Setting of Delay Time D TIME Setting upon shipment 0 2 second If you enter CODE 17 to go into this mode the message display shows D TIME The converter then asks you
34. age 5 5 Changing set data may impair normal operation of the converter If you have entered a wrong code number by mistake as a rule return to the measurement mode by pressing the MODE key Note If you have not changed the set data at all you can exit that mode with the ENT key 1 2 Example Selection of CODE 03 MODE MODE Nam Name Ey Sy rn rm LJ nf MEASURE a l MEASURE HAN CAL a SETPOINTS CODE perat CODE a ET E PTA gt HOLD BIA Ter gt HOLD SERVICE 5 er Pressing the YES key with SERVC shown Pressing the ENT key with the desired code number on the display switches to this display shown on the display enters that code number The display then changes to the one for setting mode F5 10E eps Figure 5 10 Example of Code Number Entry at Service Level IM 12C4C1 01E 5 13 5 Parameter Setting The setting procedures at the service level are described below in ascending order of the code numbers CODE 03 Mode for Setting Asymmetric Potential Check Function The asymmetric potential check function determines during calibration whether or not the asymmetric potential is within the range from 120 to 120 mV If the asymmetric potential falls outside the range a type E2 error occurs In this mode select between ON OFF of the function Figure 5 11 shows the flow for operating with the mode for setting
35. ained in this product but does not warrant that they are suitable the particular purpose of the user e 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 e This manual does not cover the special specifications This manual may be left unchanged on any change of specification construction or parts when the change does not affect the functions or performance of the product e If the product is not used in a manner specified in this manual the safety of this product may be impaired 2 Safety and Modification Precautions e Follow the safety precautions in this manual when using the product to ensure protec tion and safety of the human body the product and the system containing the product 3 The following safety symbols are used on the product as well as in this manual A 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 A WARNING 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 Ay CAUTION T
36. asceoccscecsosssosceonaccsasonsoosceeededecccessoscewencdccscoseasceseoedecsone 2 1 2 1 EXA OR series 4 wire ORP Metering System ooo eee cee cseceeeteceeeeees 2 1 2 LE ORR Sensor oree ire teea E EE a E A E ter E anh vate 2 1 2 1 2 OR400G ORP Converter ooo eeeceeeccesseceececeseeeseeceneecsecesaceeseeesaeceeecaeeenaecenes 2 1 2I Holders ccd ooa n codes ce cke basen oe gdesteae ec eats opseds cade suaseceadest eens EAEE TR 2 1 2 2 Specifications for OR400G ORP Converter eee eeeeceseeeeecseeeeeeneesneenaes 2 2 2 2 1 Standard Specifications 2 00 eee ee eeceseeeeceeeeeecaeeceeceeaecaceaecnsceeensenseees 2 2 2 22 Model and CodeS eS eia cartoons desired E E EE 2 5 2 2 3 External Dimension S ee rn e E E RE E ea E E 2 6 3 A Installationics oiron satin Beck ase E aia E E EE EE EE EEA han EEEE 3 1 31T Sel ction of Locations ee pn a E Meares eid E E RO E 3 1 3 1 2 Preparation for Installation esseseeeeseeessseeeseseeessreereereesrsserrrseesrsreererenresrsee 3 2 3 1 3 Converter Mounting rr a ei aan E E EEE E E E en ies 3 3 SPAAN i aY AEE EEEE ESEE EEA AEAEE EN 3 4 3 2 1 Types of Wiring for Converter eseeessseeessseeesrreereeresesrsserrrsrerrsreererenresesse 3 4 3 2 2 Cable Inlet Port i cca sits destasen ccities Manes aia e EEA EEE E 3 6 3 2 3 Sensor Cable or Dedicated Extension Cable Connection 068 3 7 3 2 4 Wiring for Output Signal and Remote Cleaning Start Command 3 8 3 2 5 Wiring for Hi
37. ce 7 1 Regarding Overall 4 wire ORP Metering System Tables 7 1 and 7 2 summarize the inspection and maintenance items for equipment composing the 4 wire ORP Metering System The procedure for inspection and mainte nance of the ORP converter is described in Section 7 2 For inspection and maintenance of the sensors and holders see their respective separate instruction manuals 7 1 1 Inspection and Maintenance to be Implemented Periodically Table 7 1 summarizes the items which are recommended to be inspected and maintained periodically Table 7 1 Items for Periodic Inspection and Maintenance of 4 wire ORP Metering System Instrument or Recommended Interval Apparatus All equipment a Electrode checkup 1 to 3 months ORP sensor a Cleaning of reactive element and junction 1 to 3 months b Replenishment of KCI solution 1 to 3 months in the case of an OR8EFG Sensor ORP converter a Check of degree of dryness within the converter 6 months b Replacement of fuse 1 to 2 years Submersible and a Inspection of O ring at sensor hold 6 months flow through b Cleaning of cleaner nozzle 1 to 2 months holders in the case of a jet water cleaner c Inspection for leakage from the selenoid valve 6 months for cleaning utility d Inspection for corrosion in ultrasonic cleaner 6 months T7 1E eps 7 1 2 Inspection and Maintenance to be Implemented on Occasion Carry out the maintenance that is not directly related to
38. ck that piping is provided that supplies the cleaning utility water and air at a specified pressure IM 12C4C1 01E 4 1 4 Operation 4 1 2 Supply of Power First confirm that connected control equipment is not being operated from a signal from the ORP converter Then turn on the switch provided on the power line to bring the converter into operation Turning on the power causes the converter to start operat ing in the measurement mode Main Actions in Measurement Mode depend on the parameters set upon shipment from the factory 1 The measured ORP value mV appears in the data display and the output current of the signal mA in the message display 2 Output signals of 4 to 20 mA DC corresponding to the measurable range 1500 to 1500 mV are sent out 3 lf the ORP converter detects a failure it delivers the FAIL contact output contact is closed A Tip The FAIL contact is also closed during power off lf a failure is detected the output signal is held at the value immediately before 4 2 IM 12C4C1 01E 4 Operation 4 1 3 Check of Setting Parameters and Changes in Their Default Values Set up relevant parameters to meet individual operating requirements In the case of critical parameters confirm that they are given correct settings even if the values set upon ship ment from the factory default values are to apply without change A CAUTION If a holder with a cleaner is used re set the c
39. ction low limit alarm high limit alarm or hold setting signal of the contact output as well as the use or non use of the contact output A Tip A hold setting signal is a signal that causes a relay contact to open when you have selected holding ON in the output signal hold selection mode at the operation level If you key in CODE 14 and press the ENT key the message display shows SZ The converter then asks you to set the function of contact output 1 Show your desired function on the data display and press the ENT key Figure 5 15 shows the flow for operating with the mode for setting the function of contact output S1 Setting of the function of contact output S1 P N X 0 L o Pressing the MODE key enters the Pa eer measurement mode or hold selection mode 2 Unused 0 OFF 1 Low limit alarm 2 High limit alarm 3 Hold setting signal F5 15E eps Figure 5 15 Flow for Operating with Mode for Setting the Function of Contact Output S1 5 16 IM 12C4C1 01E 5 Parameter Setting CODE 15 Mode for Setting the Function of Contact Output S2 Setting upon shipment 0 0 Contact output S2 can be used as the high low limit alarm for a measured ORP value or as a hold setting signal In this mode select the function low limit alarm high limit alarm or Hold setting signal of the contact output as well as the use or non use of the contact output as in the case of CODE 14 If you
40. dance This parameter is not used 90 response time This parameter is not used aaa cae elie aenal F5 4E eps Figure 5 4 Flow for Selecting Parameters to be Shown in the Message Display 5 3 1 2 HOLD Output Signal Hold Selection Mode This mode is used in the measurement mode to determine whether the output signal should be held or not This mode is effective when the hold function is set to HLD ON turned on in the hold parameter setting mode at the setting level If the function is set to HLD OF turned off this mode is skipped XXX HOLD appears in the status display HOLD ON When the hold function is set to HLD ON YES Press if you agree with the current setting NO Press if you disagree with the current setting F5 5E eps Figure 5 5 Flow for Selecting On Off Output Signal Hold If the hold function is set to HLD ON turned on in the hold parameter setting mode at the setting level the system is automatically set to this mode when it returns from any of the levels to the measurement mode YES IM 12C4C1 01E 5 7 5 Parameter Setting 5 3 2 Parameter Setting at Setting Level The main task at the setting level is the setting of data values measuring range etc When setting parameters at this level remove the front cover Note that the function for which you have set a data value at the setting level does not work at all if that function is turned off at the service level For this
41. e gland Cable inlet port 21 dia holes equivalent to JIS A15 cable gland For output signal contact input For sensor cable For power supply For contact output S1 and S2 For contact output S3 and FAIL 38 wo O moov Ground terminal M4 screw F3 8E eps Figure 3 8 Use of Each Cable Inlet When protecting a cable with a conduit use an adapter 4 sets are supplied when the option code AFTG is specified Remove the glands from the A C D and E cable inlets and attach the supplied adapters in place of the above glands as shown in Figure 3 9 No conduit installation is required for sensor cable inlet B Use the gland that is already assembled to the sensor cable nin CAUTION Be sure to use an OR8TBG Relay Terminal Box if it is necessary to protect all the wiring cables to the converter with conduits The cable between the relay terminal box and the converter dedicated extension cable can be protected with a conduit An adapter for that purpose can be supplied attached to the relay terminal box specify accordingly Unit mm ral al Adaptor x 49 Qa lt G 1 2 female AFTG 1 2 NPT female ANSI F3 9E eps Figure 3 9 Conduit Connecting Adapter 3 6 IM 12C4C1 01E 3 Installation and Wiring 3 2 3 Sensor Cable or Dedicated Extension Cable Connection Normally the sensor cable is connected directly to the c
42. ection of function Type of high low limit alarm output CODE17 Mode for setting delay time and hysteresis of alarm contact output Delay time setting Hysteresis setting CODE21 Mode for setting return to half value time check function Selection between ON OFF Return to half value time setting CODE22 Mode for setting type of electrode s reactive element Setting of reactive element CODE CHECK CODE D TIME HYST CODE Sb SEN Typing 03 enters this mode 0 X 0 OFF 1 X 0 ON Typing 05 enters this mode 0 OFF 1 Burn up 2 Burn down Typing 07 enters this mode 0 OFF 1 ON Typing 12 enters this mode 0 OFF 1 ON Typing 14 enters this mode 0 0 OFF 1 X Low limit alarm 2 X High limit alarm 3 0 Hold X 0 Status 1 Unused X 2 Unused Typing 15 enters this mode 0 0 OFF 1 X Low limit alarm 2 X High limit alarm 3 0 Hold X 0 Status 1 Unused X 2 Unused Typing 16 enters this mode 0 0 OFF 1 X Low limit alarm 2 X High limit alarm 3 0 Hold 4 0 Cleaning 5 0 High high limit Low low limit X 0 Status 1 Unused X 2 Unused Typing 17 enters this mode 0 1 to 19 9 s 0 to 1500 mV Typing 21 enters this mode 0 OFF 1 ON 0 1 to 10 0 min Typing 22 enters this mode 0 precious metal platinum or gold 1 antimony See page 5 14 1 X 0 See page 5 14 0 See page 5 15 1 See page 5 15 f
43. eee eeeeeeeeeeeeeeeeeeeee ene pages 5 8 5 16 and 5 17 Setting delay time and hysteresis 2 0 00 ee ceeeeeceeceseceeceseeeeeteeeeeeeeeeeeeeas page 5 18 Specifications of Combined ORP Sensor Entering types of reactive elements metal platinum gold antimony page 5 20 IM 12C4C1 01E 4 3 4 Operation 4 1 4 Electrode Checkup and Calibration Using a checkup solution check the electrode to ensure that the ORP sensor is normal A Tip Electrode Checkup and Calibration Normally an ORP meter is used for the purpose of for example knowing the end of a reaction in a process where absolute values are not a concern In such an application there is no problem in using the ORP meter even if there is a slight difference between the reading given by the electrode and the true ORP value However dirt accumulating on the wetted part or reactive element not only affects the emf of the electrode adversely but also causes other problems such as the degradation of responses It is therefore advisable that the electrode be cleaned at regular intervals so it is maintained in excel lent condition Electrode checkup examination of the emf is carried out to determine whether the electrode is in need of maintenance cleaning of the wetted part or reactive element or not Calibration on the other hand is carried out to correct the output value for a case where because of a degraded electrode the emf slightly exceeds the tolerable limit ev
44. ems detected by self diagnostics ORP measurement value abnormal Zero point shift abnormal Settling time abnormal EEPROM abnormal 2 2 2 Model and Codes Model Suffix Code 2 Overview Specifications OR400G 4 wire ORP Converter Power supply voltage 100 110 V AC 50 60 Hz 200 220 V AC 50 60 Hz Language for warning etc Japanese English Always A Option Mounting hardware Hood Tag plate Conduit Adapter Label for contact signals K9313PC Pipe mounting bracket Panel mounting bracket Awning hood carbon steel Awning hood stainlss steel Epoxy baked finish with stainless tag plate G1 2 1 2NPT T14 EPS For display on the operation panel Spare fuse K9313PS 0 1 A for either a 100V or 200V power line Pipe wall mounting bracket K9171SS Attached when option code U is specified Panel mounting bracket K9171ST Attached when option code PM is specified Shading hood K9664CA Attached when option code H3 is specified Shading hood K9664CC Attached when option code H4 is specified Tag plate Y9412NP Attached when option code SCT is specified Adapter for conduit connection IM 12C4C1 01E K9313PN Attached when option code AFTG is specified T2 5E eps 2 5 2 Overview 2 2 3 External Dimensions Unit mm Hood optional Option code H Four M6 screws 8 deep
45. en after maintenance Note If the emf largely exceeds the tolerable limit the electrode may have reached the end of its service life An electrode failure is suggested by the indication of error code E2 on the display if CODE 03 of the service level is applied to turn on the checking for asymmetric potential Calibration is also carried out to tune the measured value of this system to that of another system 4 1 4 1 Reagent and Apparatus Arrangements When carrying out an electrode checkup and calibration provide the following equip ment and materials Reagent for Preparing Checkup Solution Use this chemical if a checkup solution a chemical with a known ORP value is not readily available Prepare a quinhydrone reagent or a ferrous reagent When using a ferrous reagent approximately 15 ml of concentrated sulfuric acid is also needed when 250 ml of checkup solution are being prepared Note The following chemicals are available as reagents from the manufacturer Quinhydrone reagent Part number K9024EC for preparing 250 ml solution three bags Ferrous reagent Part number K9024ED for preparing 250 ml solution three bags Wide mouth 250 ml Beaker Used to prepare a checkup solution with a quinhydrone or ferrous reagent 200 ml Beaker Used to submerge the ORP electrode in the checkup solution Thermometer Used to measure the temperature of the checkup solution 4 1 4 2 Procedure for Electrode Checkup Calibration
46. er shows an abnormal measurement The converter is slow to respond Measurement presents hunting IM 12C4C1 01E If any failure occurs with a measurement that may interfere with normal system opera tion take corrective actions according to Table 8 2 Note that the causes of most abnormal measurements trace back to the ORP sensor There are varying types of sensors with different structures that are used with the 4 wire ORP Metering System Consequently depending on the type of sensor different corrective actions are taken against a failure For further details see the separate instruction manual for the type of ORP sensor you use Table 8 2 Corrective Actions in the Case of a Measurement Failure The junction is dirty The measured solution flows in the reverse direction from the junction 2 There is deterioration in the insulation around the sensor cable measurement circuit The supply voltage varies in exeess of the tolerable limits The ORP sensor has reached the end of its service life Calibration failure The reactive element is dirty Sensor degradatien The ORP sensor has reached the end of its service life Poor insulation in wiring cables or connections Break in sensor cable Solution stagnates at the measuring point Dirt has accumulated on the sensor s reactive element or the junction is clogged The cleaning utility is leaking The converter picks up external noise Th
47. erating with Output Signal Hold Setting Mode The applicable range and factory set default of each parameter in this mode are given as follows Entering a value exceeding the limits causes a type E19 error to occur SETP 1 setting upon shipment 500 mV Setting range 1500 to 1500 mV1 SETP 2 setting upon shipment 500 mV Setting range 1500 to 1500 mV SETP 3 setting upon shipment 250 mV Setting range 1500 to 1500 mV 3 LOW setting upon shipment 1000 mV Setting range 1500 to 1500 mV 3 HIGH setting upon shipment 1000 mV Setting range 1500 to 1500 mV 5 8 IM 12C4C1 01E 5 Parameter Setting Associated Setting Mode Selection of alarm action CODEs 14 15 and 16 at service level Delay time and hysteresis CODE 17 at service level 5 3 2 2 OUTPU Measuring Range Setting Mode Set the measuring range corresponding to the current output signal 4 to 20 mA DC Set the range by entering an ORP value appropriate for the minimum value of the output signal 4 mA and the one appropriate for the maximum value 20 mA Set the range such that the span is greater than 100 mVI If the span is smaller than the tolerable lower limit a type E17 error occurs Figure 5 7 shows the flow for operating with the measuring range setting mode YES OUTPUT x OUTPU PIIN PIIN Note 1 This parameter voltage output signal is not used Consequently values set for this parameter have no significance
48. ere is a poor contact in the wiring around the sensor cable measurement circuit Measures 1 Clean the junction Check the pressure of the measured solution if a sensor feeding a KCI solution is used Restore the insulation s quality to 108 Q or more Improve the situation Use a new ORP sensor Re calibrate the sensor Clean the element Use a new ORP sensor Use a new ORP sensor Restore the insulation s quality between the cable connections and terminals to 108 Q or more Replace the ORP sensor Correct the condition Clean the element If the problem persists replace the electrode Correct the condition e g replace the solenoid valve Locate the noise source and take proper measures Repair the dafective portion of the wiring cables T8 2E eps 8 3 Worksheet for Operation Parameter Setting E Worksheet for Operation Parameter Setting Service level Mode for setting asymmetric potential See page 5 14 check function Selection between ON OFF CHECK 1 ON Burn up down function setting mode See page 5 14 Selection of the function 0 OFF Mode for setting automatic return to See page 5 15 measurement mode Selection between ON OFF 1 ON Mode for setting output signal See page 5 15 transmission Selection between ON OFF 1 ON Mode for setting the function of See page 5 16 contact
49. eter Setting at Operation Level The operation level offers two categories of modes the setting and calibration operation modes This subsection explains only the operating procedures used in the setting mode DISPLAY and HOLD The calibration operation MAN CAL mode is discussed in Chapter 6 5 3 1 1 DISP Mode for Selecting Items to be Shown in the Message Display This mode is used in the measurement mode to select items to be shown in the message display There are five items for selection as shown below Each pressing of the NO key moves from one item to another Note that three of the parameters the output signal given as a voltage reference electrode impedance and 90 response time are not used in this system Consequently values given for these parameters have no significance 1 mA XX X Output signal given as a current 2 mV 250 Output signal given as a voltage This parameter is not used 3 XXX AS Asymmetric potential 4 XX RZ Reference electrode impedance This parameter is not used 5 RES XX 90 response time This parameter is not used Pressing the YES key while the desired item is on display enters that item The converter then goes to the measurement mode or the hold selection mode The default setting is the output signal given as a current YES Output signal given as a current Output signal given as a voltage This parameter is not used Asymmetric potential Reference electrode impe
50. for operation all equipment composing the ORP Metering System For details on equipment other than the ORP converter see their respective separate instruction manuals 4 1 1 Checking the Conditions in Which Converter is Installed Piped and Wired Inspection of Installation 1 Check that the ORP sensor is ready for measurement see the appropriate instruction manual and the holder is securely fixed Inspection of Wiring 1 Check that all necessary wiring has been completed and the cables are properly connected After checking the connection to the ORP converter be sure to mount the terminal cover 2 Check that all unused cable inlets are plugged with a blind Inspection of Piping The types of piping include sampling piping when a flow through type holder is used and cleaning utility piping when a holder with a jet or brush cleaner is used In some applications where an OR8EFG ORP Sensor is used an air pipe for pressurizing the KCl reservoir tank may be installed Likewise in some applications where a 797M Detach able Holder is used a steam pipe for sterilization may be installed 1 Check that all necessary piping has been completed 2 If a flow through type holder is used check that the specifications of the pipe material diameter etc conform to the requirements of the measured solution that flows through the pipe flow rate pressure temperature etc 3 If a holder with a jet or brush cleaner is used che
51. from 0 mV as possible but still within the measuring range 6 3 2 Manual Calibration Tune in Figure 6 5 shows the flow of operations used in manual calibration wi KK Dip the sensor into the checkup solution With the and gt keys key in the oxidation reduction potential indicated CHANGE by the reference ORP meter ENT Calibration starts Wait until the indication stabilizes and then press the YES key XXX YES NO NO This display appears when the calculation YES NO Note 1 based on the keyed in value ends The converter checks the asymmetric potential Note 2 if the checkup function is turned on If the potential is within the tolerable limits calibration is complete E Nt a E cn ETE eta wien Do not press the NO key If you carry out re calibration in this operation the converter will not be calibrated accurately If the asymmetric potential is out of the tolerable limits a type E2 error occurs no calibration is carried out F6 5E eps Figure 6 5 Flow of Manual Calibration IM 12C4C1 01E 7 Inspection and Maintenance 7 Inspection and Maintenance It is important for maintaining the accuracy of the EXA OR series of the 4 wire ORP Metering System to perform inspection and maintenance at fixed intervals It also serves to prevent problems from arising This chapter describes daily inspection and mainte nance for the purpose of maintaining system performan
52. from fire earthquake storms and floods lightning disturbances riots warfare radiation and other natural changes Yokogawa does not warrant conformance with the specific application at the user site Yokogawa will not bear direct indirect responsibility for damage due to a specific application Yokogawa Electric will not bear responsibility when the user configures the product into systems or resells the product Maintenance service and supplying repair parts will be covered for five years after the production ends For repair for this product please contact the nearest sales office described in this instruction manual IM 12C4C1 01E jii For the safe use of this equipment The topics and information that need your special attention in handling the product are given in the text of this manual along with cautionary notes such as WARNING or CAUTION depending on the importance of the information For safety reasons or to avoid possible damage to your equipment strictly adhere to every cautionary note that appears in this manual For a notation such as a warning also indicated on the product there is an alert mark in the manual 1 About This Manual e This manual should be passed on to the end user e The contents of this manual are subject to change without prior notice e The contents of this manual shall not be reproduced or copied in part or in whole without permission e This manual explains the functions cont
53. gh Low Alarm Contact Output 0 eee eee eeeeeeeneeeeeeeee 3 9 3 2 6 Wiring for Cleaning or Alarm FAIL Contact Output 0 3 10 3 2 7 Wiring for Power Supply eececeseceeceseeeeceseeeeceeeeeeceseeeaecaeeeaeseesaeenaes 3 11 3 2 8 Ground WINS wernane erein a e E bs tigations Shee seesbeolieeh Gestion 3 12 Ae Operatii fie siaecasdnacsvenssiwsncecsaacnas nn n an eavatuceduaaes en sounvscaserdowes soveeseetarsivccn 4 L 4 1 Preparing for Operation o ssc 35 ss2 iesc ssecsssteassssnstsescossassadvesesnss ideas oo biesieavsastostevensoons 4 1 4 1 1 Checking the Conditions in Which Converter is Installed Piped and Wired 4 1 4 1 2 Supply Of Powercssissessssccssapusssscveys a iee ara EE aa E 4 2 4 1 3 Check of Setting Parameters and Changes in Their Default Values 4 3 IM 12C4C1 01E 4 1 4 Electrode Checkup and Calibration 2 00 0 ee eceeeeceeeeeeeeseeceessecseenaeenees 4 4 4 1 5 Operation Check isch ais g sn iove eierniie tects des estas EE tes ENE S E eons 4 5 42 Steady Operation sanee eee eiiean E Aiea E E E AE bey 4 7 4 2 1 Corrective Actions Against Failure seeeeseeeeseeessererrereserresreresreerereereees 4 7 4 2 2 Inspection and Maintenance ss eeseeeseeseeeeeesseeseeestsreesrrsseserssererseeseeeseeseet 4 7 4 3 Shutdown and REStart cove sess cesses roten opar e oee Na Ere pE EE e Eh EO ET S sess 4 8 4 3 1 Measures for Shutdown eee cecesecesceseeeeeeeeceeeeseeeseeseecaecaecaeenaeeaees
54. h codes other than the ones shown to the left Note The HOLD mode is skipped if the function is not active 2 mmnm mmm n m n m n l F5 1E eps Figure 5 1 Classification of Modes Related to Level Settings IM 12C4C1 01E 5 1 5 Parameter Setting 5 1 2 Key Operations 5 1 2 1 Interactions Keys can be operated in an interactive manner Operate the keys according to the information in the data or message display information pointed to by the pointer mode indication and or information in the key operation display For basic key operations see Chapter 1 Flashing pointer This inquires whether you want to go to tine mode being pointed at or move the pointer to the next mode When the system indicates the modes for the setting or service level the message is preceded by an asterisk When you enter one of the modes the pointer stops flashing and remains continuously lit Flashing key operation display Select from the items shown in the display and press the corresponding key Flashing data display numerals This inquires whether you want to change the flashing numeral or move to the next digit and have it flash Press the appropriate key If neither of these actions is required press the ENT key 5 1 2 2 Aborting Setting Operation Returning to Measurement Mode Press the MODE key Normally the MODE key is used to move from the measurement mode to a mode at the operation level If the MODE key is
55. h type and submersion type holders are available in versions having cleaners jet brush or ultrasonic that remove dirt from the sensor s membrane Flow through holder Submersion type holder with cleaner IM 12C4C1 01E 2 4 2 Overview 2 2 Specifications for OR400G ORP Converter The OR400G ORP Converter delivers an analog signal relative to an oxidation reduction potential and many different contact signals such as upper lower limit alarms Provided with many operation parameter setting functions the converter lends itself to a wide variety of applications It also has several self diagnostic functions which simplify maintenance work 2 2 1 Standard Specifications Measurement Oxidation reduction potential ORP of a solution Measuring range 1500 to 1500 mV Display digital LCD range 1500 to 1500 mV Converter output 4 to 20 mA DC isolated floating maximum load resistance 600V Converter range output may be set to correspond to an arbitrary input span of at least 100 mV Ship ping time default is for output to correspond to 1500 to 1500 mV measuring range Contact output Contact output function that can be set Contact Function Setting freely selectable Operation freely selectable S1 OFF Low limit High limit ON OFF HOLD s2 OFF Low limit High limit Ditto HOLD OFF Low limit High limit Ditto S3 HOLD Cleaning timer Hi Hi limit Lo Lo limit FAIL Failure ON
56. his symbol gives information essential for understanding the operations and functions A Tip This symbol gives information that complements the current topic CN SEE ALSO This symbol identifies a source to be referred to IM 12C4C1 01E Table of Contents l Specification CHECK meena ao A A E E E RA EAE i 2 Before Starting Measurement 00 0 0 eesi serorea es Eaei aE EE EEEE eT EE Easa i i 3 Information Covered in This Manual ssssesseseseesesessseesesteereresrerrsresrsserrrsreerereeree ii After sales Warranty a sereia ren n EE a EE A ii For the safe use of this equipment ccccecccscsesscssescecsececscescseeseseesesessecesseceeseees iv 1 Procedures for Key Operation c ccsssccsssscsssssccssssccsssscssseccssssscssssccssssccssssccsssscces Lod 1 1 Display Panel Section and Keys on Operation 00 0 0 ee eeeseeseseeeecneetneeneenees 1 1 1 2 Operating the ORP Converter orrore are oee E E E Eno peken E SP rr 1 2 1 2 1 Connection of the ORP Sensor and Supply of Power eee eee eee 1 2 1 3 Basic Key Operation i ccs Ascctcesgsce vias ca Ricans cinch is EE ES 1 3 1 3 1 Mode Selection at Operation Level o0 eee ee eseseecseceseceeceeeeeeeseeeeeneeees 1 3 1 3 2 Operation to Switch to Setting Level oe ee ceeee cee ceeceeeeseeeeeeeees 1 4 1 3 3 Operation to Enter Data Numerical Values 0 ceeeeeeecsseceneecereeeeeeeees 1 5 Ds COVER VIEW siccecsbonsssccdccccccascascsonaccscdonde
57. igh high limit alarm point setting S3 HIGH 1000 mV of contact output S3 Measuring range setting mode OUTPU See page 5 9 Minimum value setting in 4mA 1500 mV the measuring range Maximum value setting in 20MA 1500 mV the measuring range Hold parameter setting mode SET HD See page 5 10 Selection of ON OFF of hold HLD OF OFF OFF OFF HLD ON ON ON Selection of the value immediately HD LST Value Value immedi L Value immedi Value immedi s ately before ately before ately before before holding or the fixed value oeae i holding holding holding efore holding Current signal level of HD FIX Fixed value Fixed value Fixed value the fixed value HLD mA 12 0 mV Cleaning parameter setting mode See page 5 11 Selection between ON OFF of OFF cleaning timer Cleaning period 10 0 h Cleaning time 0 1 min Relaxation time 0 2 min SetPara E eps ii IM 12C4C1 01E Customer Model OR400G EDLA oF Maintenance 4 Wire ORP Metering System Parts List ORP Converter y AASASSNAN SARL Item Part No Qty Description 1 K9313PS 1 Fuse Time Lag Fuse 2 B1002JZ 4 Cable Gland 3 K9334CN 3 Insert 4 K9141TX 4 Fitting for Option Code AFTG K9311KQ 4 Adapter for Option Code ANSI 5
58. imit alarm setpoints and contact output hysteresis b Fixed value for output signal hold 2 Item to Check When Cleaning Function is Changed from Stop to Execute a Setting of execute stop of return to half value time check 3 Items to Check When High Low limit High high Low low limit Alarm Setpoints are Changed a Measuring range b Alarm actions low limit alarm or high limit alarm operation c Delay time and hysteresis 5 2 Setting Items Subsections 5 2 1 to 5 2 3 show the setting items for each level 5 2 1 Setting Items at Operation Level Table 5 1 Setting Items at Operation Level Mode Setting item Display Remarks Default MAN CAL Operation for manual calibration MAN CAL gt DISPLAY Selection of Items to be shown Pressing the YES key enters this mode See page 5 7 in the message display Output signal given as a current Asymmetric This function is not used Potential Output current This function is not used This function is not used HOLD Output siganal hold selection mode HOLD Pressing the YES key enters this mode ON OFF HOLD ON Press the YES key to turn on See page 5 7 Press the NO key to turn off Note The output signal hold selection mode is skipped if HOLD OF is seleeted in the hold parameter setting mode at the setting level Remarks The Display column lists the items as they appear on the message display X in the Display column indicates an
59. ip If an error is detected during key operation or while a certain action is in progress the FAIL contact signal turns on immediately though the error number is displayed only after that key operation or action is complete If a FAIL contact signal has turned on take measures according to Table 8 1 Table 8 1 Corrective Actions in Case of Failure Error Detection Relevant Mode Relevant Mode Description ot Enors andTheir causes of Errors and Their Causes Corrective Actions MAN CAL mode SS potential failure Eliminate the causes and check the Occurs if the asymmetric potential exceeds the range electrode If the failure is not corrected from 120 to 120mV detected when the asymmetric replace the ORP sensor potential checkup function is turned on The keyed in ORP value is incorrect The reactive element or junction of the sensor is contaminated The ORP sensor has deteriorated reached the end of its service life Setpoint failure Clean the reactive element of the sensor Measurement Occurs if the measured value exeeeds the range and perform an electrode checkup from 1500 to 1500 mV If the error is detected again examine the There is a problem with the sensor cable wired cables such as a break There is a problem with the junction of the sensor contaminated with dirt reversed flow of measured solution etc All modes Unsuccessful writing to EEPROM First turn off the power to check whether the problem
60. is corrected If the error is detected once again request repair by Yokogawa Measurement mode Time error in return to half value Check the eleetrode to ensure that the during automatic Occurs if the ORP value fails to return to its half value sensor is normal Then check the allowable cleaning within the preset time range detected when the function return to half value time set in CODE 21 to check the return to haif value time is set to ON The difference between the ORP value of the measured solution and that of the cleaning solution is very marginal The reactive element or wetted part of the sensor is contaminated Incorrect span Change the maximum or minimum value of measurement A value that causes the span to fall below 100mV was the range so the span becomes greater than range setting mode set in the measurement range setting mode the tolerable limit During data entry Setpoint failure Reenter the value within the tolerable limits A value exceeding the tolerable limits was entered All modes Instrument initialization failure The converter needs to be repaired Request A failure occurred in the besic data values of service from Yokogawa the instrument T8 1E eps 8 2 IM 12C4C1 01E 8 Troubleshooting 8 3 Corrective Actions in the Case of a Measurement Failure Phenomenon The actual measurement is stable but the converter shows an unstable measurement The converter shows a large error The convert
61. key in CODE 15 and press the ENT key the message display shows 2 The converter then asks you to set the function of contact output S2 Show your desired function on the data display and press the ENT key Figure 5 16 shows the flow for operating with the mode for setting the function of contact output S2 Setting of the function of contact output S2 P N X 0 L_ 0 Status Unused 2 Unused 0 OFF 1 Low limit alarm 2 3 Pressing the MODE key enters the measurement mode or hold selection mode High limit alarm Hold setting signal F5 16E eps Figure 5 16 Flow for Operating with Mode for Setting the Function of Contact Output S2 CODE 16 Mode for Setting the Function of Contact Output S3 Setting upon shipment 0 0 Contact output S3 can be used as the high low limit or high high low low limit alarm for a measured ORP value or as a cleaning or a hold setting signal In this mode select the function low limit alarm high limit alarm or hold setting signal of the contact output as well as the use or non use of the contact output If you key in CODE 16 and press the ENT key the message display shows 3 The converter then asks you to set the function of contact output S3 Show your desired function on the data display and press the ENT key Figure 5 17 shows the flow for operating with the mode for setting the function of contact output S3 Setting of the function of cont
62. knob at the lower right of the front panel to open the panel Sensor cable output signal wiring connection terminal Contact output power cord terminal Terminal cover HIGH VOLTAGE Warning Be careful not to touch the terminals while power is being supplied Grounding terminal M4 screw Located on the left side of the case F3 6E eps Figure 3 6 Position of terminal blocks for external wiring cable connection 3 4 IM 12C4C1 01E Wiring Output signal 4 to 20mA DC Contact input cleaning start command Sensor cable or dedicated extension cable OR400G Note External wiring connection terminal size is for M3 screw 3 Installation and Wiring Power supply Contact output S1 High and low alarms Contact output S2 Contact output S3 cleaning or high and low alarms Contact output FAIL failure Grounding terminal M4 screw Grounding 100Qor less F3 7E eps Figure 3 7 External Wiring Cable Connection Terminals and Hookup IM 12C4C1 01E 3 5 3 Installation and Wiring 3 2 2 Cable Inlet Port There are four cable inlets on the OR400G ORP Converter in addition to the one for a sensor cable These inlets have cable glands for a cable with an OD of 9 to 12 mm Introduce cables through their respective inlets shown in Figure 3 8 If there is any cable inlet not used seal the opening so that no dust gets in Cable inlet port 13 5 dia holes 36 For JIS A8 cabl
63. le return to half value time Using the gt or the A key show the value being set in the data display and then press the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 0 1 to 10 0 min A CAUTION The allowable return to half value time you enter must be shorter than the relaxation time set in the cleaning parameter setting mode at the setting level CODE 22 Mode for Setting the Type of Electrode s Reactive Element Setting upon shipment 0 Metal Enter the type of the ORP sensor electrode being used The types allowed to be entered are a precious metal electrode or antimony electrode If you enter CODE 22 to go into this mode the message display shows Sb SEN The converter then asks you to select the type of electrode To select a precious metal electrode platinum or gold press the ENT key with 0 shown on the data display To select the antimony electrode press the ENT key with Z shown on the data display Entry of type of electrode s reactive element Sb SEN N X L_ 0 precious metal platinum or gold Pressing the MODE key enters the 1 antimony measurement mode or hold selection mode F5 22E eps Figure 5 22 Flow for Operating with Mode for Setting Type of Electrode s Reactive Element IM 12C4C1 01E 6 Electrode Checkup Calibration Procedure 6 Electrode Checkup Calibration Procedure Electrode checkup and
64. leaning timer at Execute If default values have been changed it is convenient to record the data in the Notes on Operation Parameter Settings for example attached at the end of this manual The types and functions of setting parameters are detailed in Chapter 5 Refer to this information before you start setting parameters For reference the pages describing the main setting parameters and key operations are shown below Key Operation Procedures Basic patterns of key Operation 0 eee eee csesecseceseceeceseeeeceeeeeeeeeeeeeeseeees page 1 3 Switching from measurement mode to setting level 1 0 0 0 page 1 4 Selecting numeric values and digits data entry ee page 1 5 Aborting setting operation returning to measurement mode page 5 2 Moving through setting items en the setting level oe eee eeeeeeee page 5 6 Selecting setting parameters on the service level eee ee eeeeeee certs page 5 13 Output Signal Changing the measuring range oo eee ee eeeeeeeeseecaeeseecneeaecaeceseeeeeneeseeees page 5 9 Holding the output signal during calibration cleaning or maintenance page 5 10 Output signal Burn up burn down at occurrence of FAIL signal page 5 14 Shutting down transmission of output signals 2 0 0 0 eee eeeeeeeeeeeeeeees page 5 15 Contact Output Execution of automatic cleaning oe eee ee eeeeeeecreeseeceeeaecneeeseeneensees page 5 11 Providing alarm setpoints 0 000
65. lication No OR400G ORP Convertor IM 12C4C1 01E OR8ERG ORP Sensor KCI refillable tvpe IM 12C04K01 01E OR8EFG ORP Sensor KCI filling type IM 12C04J01 01E HA485 Solid Electrolyte Xerolite ORP Sensor IM 12C4Q1 02E DPA485 ORP Sensor Fer Chemical Processes IM 12C4Q1 03E DPAS485 ORP Sensor For Small Fermentation Tanks IM 12C4Q1 05E PH8HG Guide Holder IM 12B07M02 01E PH8HF Flow through type Holder IM 12B07N01 01E PH8HS Submersion type Holder IM 12B7M1 01E PHEUSG PHEPUT Sys TO1E eps Conventions Specific to This instruction Manual In principle this manual uses the following conventions to indicate specifically the labels on the keys the information shown on the display panel and the labels on the instrument 1 Operation key Indicated with Example key means YES key 2 Information shown in the display section Indicated with Example On status display How means HOLD Example operation key indicator ves means YES Example message display WASH Example data display gt 205 lit 205 flashing 3 Labels on instrument Indicated with lt and gt Example contact output indicator lamp gt lt S3 gt on status lt OS3 gt off status Example Measurement mode gt lt MEASURE gt mode 4 Indication of flashing in figures Appears in a light shade of gray Flashing R rm Lit F z i P Na IM 12C4C1 01E After sales Warranty
66. measurement functions and maintenance associated with errors at any required time Table 7 2 Items for Occasional Inspection and Maintenance of 4 wire ORP Metering System Faulty Phenomenon Content of Inspection E2 Error Check whether the reactive element or the wetted part of the ORP sensor is contaminated Check whether the cleaner nozzle is clogged in the case of a jet water cleaner E9 Error Check whether the reactive element or the wetted part of the ORP sensor is contaminated Check whether there is any deteriorated insulation or break in the sensor cable Reduced visibility of Wipe off the dirt on the transparent window using a tissue or the like the inside of the converter Use detergent for hard to clean dirt through the window T7 2E eps IM 12C4C1 01E 7 1 7 Inspection and Maintenance 7 2 Inspection and Maintenance Procedure for OR400G ORP Converter 7 2 1 Wiping off Front Cover Window A CAUTION Do not wipe organic solvents on the window Otherwise this may cause blurring or cracks Wipe off any dirt on the window material weather resistant polycarbonate resin on the front cover with a tissue or soft cloth dampened in water If the dirt is difficult to remove wipe it off using detergent 7 2 2 Inspection of Degree of Dryness Within the Converter Check that the converter does not have condensation on the inside of the front cover window High humidity adversely affects electrical components In
67. mission of the output signal in the measurement mode See CODE 12 on page 5 15 4 1 5 2 Functions Related to High Low limit Alarm Contact Output If control is improper the delay time and hysteresis can be changed default setting delay time of 0 2 second hysteresis of 0 10 mV See CODE 17 on page 5 18 pe imit alarm 3 N setpoi point t Measured value Hysteresis Contact signal OFF oman Contact signal OFF ontact signa Status output OFF F4 1E eps Figure 4 2 Delay Time end Hysteresis for Alarm Contact Output example of high limit alarm IM 12C4C1 01E 4 5 4 Operation 4 1 5 3 Functions Related to Cleaning Contact Output If in an application where a holder with a cleaner is used the cleaning timer is set to execute default setting stop automatic cleaning is carried out with the timing shown in Figure 4 3 However automatic cleaning is not executed unless the converter is set in the measurement mode The cleaning period default setting 10 hours and cleaning time default setting 0 1 minute can be changed depending on the property of the measured solution so that the sensor will be able to receive sufficient cleaning The relaxation time default setting 0 2 minute is the interval for holding an output signal until the measured value becomes unaffected by the cleaning utility after cleaning is completed This is effective only when the output signal hold is
68. mode gt Press to select a digit in data setting a Press to select a numeral in data setting ENT Press to enter a keyed in data item F1 1E eps Figure 1 1 Operation Panel IM 12C4C1 01E 1 1 1 Procedures for Key Operation 1 2 Operating the ORP Converter 1 2 1 Connection of the ORP Sensor and Supply of Power 1 2 The OR400G ORP Converter operates on an AC power supply at the specified voltage Before turning on the power connect the ORP sensor The ORP sensor can be con nected with the membrane protective covering for storage left on A WARNING The converter has no power switch In order to avoid electrical shock or damage to the instrument properly wire the sensor to the predetermined external wiring termi nals of the converter before turning on the power Carry out wiring after removing both the front and terminal covers as shown in Figure 1 2 Sensor connection terminals Tn ee aes ia Power connection P Terminal cover eed Grounding terminal 7 Vam This is located on the left side of the case and in principle must be grounded Figure 1 2 External Wiring Terminals When turned on the converter starts in the measurement mode the data display indicates an ORP value and the message display the current of an output signal initial status If the converter detects a failure FAIL appears the lt FAIL gt indicator lamp lights up and the message display i
69. n can be used as the checkup solution 6 1 4 Errors Occurring in Calibration An etror occurring in relation to calibration is a type E2 error asymmetric potential failure A type E2 error occurs if the asymmetric potential exceeds the range from 120 to 120 mV when the checkup function is turned on IM 12C4C1 01E 6 1 6 Electrode Checkup Calibration Procedure 6 2 Electrode Checkup Manual Calibration Emf Correction Procedure 6 2 1 Preparation Cleaning of ORP Sensor Move the ORP sensor to a maintenance site and wash off any dirt on the electrode and wetted part with water Preparation of Checkup Solution and Equipment The equipment necessary for an electrode checkup are a thermometer 250 ml wide mouth beaker for preparing the checkup solution and 200 ml beaker If you have an OR8AX Accessory Tool Kit use it Prepare a checkup solution of approximately 100ml If you do not have a usable checkup solution make one using a quinhydrone reagent or a ferrous reagent A Tip Procedure for Preparing a Checkup Solution Using Yokogawa supplied Reagents Quinhydrone solution Pour a packet of the reagent into the 250 ml wide mouth beaker Add pure water to dissolve it until you have a solution of 250 ml If the tem perature of the water is too cool the reagent may not dissolve completely with some of the reagent floating en the surface However this is not a problem in using the solution Ferrous solution Pour
70. ndicates an error code Should a failure occur go to Chapter 8 MODE FA MODE m Naa rm m mV a P MEASURE mV T P MEASURE ap saa EQ na nf le HOLD HOLD YES NO MODE CONTACTS MODE CONTACTS O O E l a a gt A ENT O83 gt A O83 Co C DC om CIC J O FAIL Normal Display Display When a Failure Occurs F1 3E eps Figure 1 3 Example of Display in Measurement Mode IM 12C4C1 01E 1 Procedures for Key Operation 1 3 Basic Key Operation 1 3 1 Mode Selection at Operation Level CX SEE ALSO For more information see Section 5 3 To check that key operation from the outside can be done normally attach the front cover in selecting a mode note the following two points Pressing the MODE key in modes other than the measurement mode returns to the measurement mode However pressing the key while the output signal hold is active goes to the lt HOLD gt mode If no key is operated for ten minutes the converter returns to the measurement mode Default setting 1 Press the MODE key once The display shown in Figure 1 4 1 appears 1 2 MEASURE MEASURE MANCAL EE ear 5 TART gt Dera f J vil HOLD HOLD F1 4E eps The pointer indicating lt MAN CAL gt and This is the display when the YES key is YES and N in
71. onductors for contact output S3 FAIL terminals two conductors for contact output FAIL When introducing the cable into the converter remove the parts attached to the cable gland located at cable inlet E and pass the cable through these parts in the proper sequence in advance 3 Fix the cable Adjust the length of the portion of the cable housed within the converter and fix the cable by reassembling the parts through which the cable passes to the cable gland 3 10 IM 12C4C1 01E 3 Installation and Wiring 3 2 7 Wiring for Power Supply Supply AC power of the specified voltage 88 to 132 V or 176 to 264 V and frequency 50 60 Hz to the OR400G ORP Converter A CAUTION The OR400G ORP Converter has no power switch Be sure to provide a double pole switch in the power line Use a power outlet free from any variation that may cause the voltage to exceed the tolerable voltage range 3 2 7 1 Cable to Be Used Use a two conductor cable with a finished OD of 9 to 12mm 3 2 7 2 Connecting Procedure 1 End treat the cable Strip off about 40 mm of the insulation from the cable end and attach crimping terminal lugs conforming to an M3 screw to the tip of each conductor 2 Connect each cable conductor to terminals 1 and 2 When introducing the cable into the converter remove the parts attached to the cable gland located at cable inlet C and pass the cable through these parts in the proper sequence in advance 3 Fix the cable
72. one packet each of the light purple and light green reagents in the 250 ml wide mouth beaker Add 2 mol l solution of concentrated sulfuric acid to dissolve the reagent until you have a solution of 250 ml Note When you prepare a solution using concentrated sulfuric acid first pour approxi mately 150ml of pure water into the beaker that contains the reagents Add 14 ml of concentrated sulfuric acid while stirring the solution Add more pure water to further dissolve the reagent until you have a solution of 250 ml Tolerable range Oxidation reduction potential mV Tolerable range Note The tolerable range is the range of the emf indicated by an electrode that is approved as normal F6 1E eps Temperature C Figure 6 1 Oxidation reduction Potential Given by Quinhydrone and Ferrous Solutions 6 2 IM 12C4C1 01E 6 Electrode Checkup Calibration Procedure 6 2 2 Electrode Checkup Operation An electrode checkup is performed in the measurement mode Hold the output signal if necessary This checkup can also be performed in the lt MAN CAL gt mode at the operation level Figure 6 2 shows the flow of operations used to cheek the electrode at the operation level ves 7K START Dip the sensor into the checkup solution YES NO CRead the indication gt Check that the indication is within Read the Indication the tolerable limits HOLD ON ait until the indication stabilizes before you read the
73. onverter If an OR8TBG Relay Terminal Box is used first connect the sensor cable to the box Then connect the box with the converter using the dedicated extension cable supplied with the OR8TBG Relay Terminal Box The sensor cable and the dedicated extension cable already have a finished end treatment J N CAUTION The end treatment of a dedicated extension cable may differ between the connection with the relay terminal box and the connection with the converter When using a dedicated extension cable examine both ends before wiring the cable 3 2 3 1 Connection Procedure 1 Connect each conductor of the sensor cable to the predetermined terminals of RE SE GE and G J N CAUTION Some types of sensors use a cable lacking the G leadwire These sensors have two SE leadwires Connect both of them to terminal SE When introducing the sensor cable into the converter remove the nut from the sensor cable gland 2 Fix the cable gland Insert the cable gland into the inlet and tighten the nut IM 12C4C1 01E 3 7 3 Installation and Wiring 3 2 4 Wiring for Output Signal and Remote Cleaning Start Command This is wiring for transmitting the converter s output signal to a receiving instrument such as a recorder and for sending a contact input signal to the converter to start cleaning The output signal is a unified 4 to 20 mA DC signal corresponding to any preset range The wiring for the contact input signal is necessary only when y
74. ou use a remote cleaning start command in an application where the holder with a cleaner is used The on off contact input can be identified with input resistances on 10 Q or less for more than 0 25 second off 100 KQ or more Use a dry contact 3 2 4 1 Cable to Be Used Use a shielded cable with a finished OD of 9 to 12 mm Select either a 2 or 4 conductor cable depending on the number of signals 3 2 4 2 Connection Procedure 3 8 1 End treat the cable Strip off about 40 mm of the cable insulation covering from the cable end Cut the exposed shield at its root near the remaining covering and solder a grounding leadwire about the same length as the cable conductors to the shield Protect the soldered point by wrapping it with insulation tape for example Next attach crimping terminal lugs conforming to an M3 screw to the tips of the leadwire and each cable conductor 2 Connect each cable conductor to the specified terminals Plus and minus terminals conductors for 4 to 20 mA DC output signal Grounding terminal conductor grounding R1 and R2 terminals conductors for contact input signal A CAUTION Ground the cable shield only at the OR400G ORP Converter When introducing the cable into the converter remove the parts assembled to the cable gland located at cable inlet A and pass the cable through these parts in the proper sequence in advance 3 Fix the cable Adjust the length of the portion of the c
75. own in Figure 6 4 Figure 6 4 Example of How to Hold the Sensor IM 12C4C1 01E 6 3 6 Electrode Checkup Calibration Procedure 6 3 Manual Calibration Tune in Procedure 6 3 1 Preparation Manual calibration to adjust the reading of the OR400G ORP Converter to that of a reference ORP meter can be carried out by sampling an actual process solution mea sured solution The procedure of this manual calibration is the same as that for correct ing the emf discussed in Section 6 2 Cleaning of ORP Sensor Move the ORP sensor to a maintenance site and wash off any dirt on the electrode and wetted part with water Sampling When taking samples observe the following precautions If it is not possible to compare the measured value of the OR400G ORP Converter with that of a reference ORP meter using the same solution on a real time basis exercise care to prevent any variation in the oxidation reduction potential due to for example a change in temperature avoid such variations by taking samples just before you start calibration or by taking a relatively large sample A Tip If it is not possible to compare ORP values of the same sample on a real time basis it is advisable that you use a portable ORP meter calibrated with the value given by the reference ORP meter PH72 and then adjust the OR400G Converter to indicate that value Take a sample that shows an oxidation Reduction potential with as much deviation
76. plastic gland watertight to JIS A15 equivalent Weight Body Approx 2 5 kg Mounting bracket Approx 0 5 kg Dimensions 144 x 144 x 135 mm Standard Performance Repeatability 0 5 of input span not including sensor Linearity 0 5 of input span not including sensor IM 12C4C1 01E 2 3 2 Overview Operating Functions Display 3 1 2 digital display data display Six digit alphanumerics message or data display Display items ORP value mV mA output Zero shift value Interactive prompts Key entry request for hold value Error display if error occurs Fail display if failure occurs Operation mode actions Message area display content selection Set release output hold setting Manual calibration one point Maintenance mode actions Setting of alarms S1 S2 and S3 Setting of output ranges Setting of hold parameters Enable disable hold Hold last value Hold preset value setting Setting of preset value Setting of wash parameters Selection of auto manual wash Manual wash start stop Auto wash enable disable Wash cycle interval settable 0 1 to 36 hours Settling time settable 0 1 to 10 min Wash cycle duration settable 0 1 to 10 min Service mode actions Zero point check Settling to 50 time check On Off Settling to 50 time setting 0 1 to 10 min Burnout upscale downscale Off Mode auto revert On Off Converter mA output On Off Error reset 2 4 IM 12C4C1 01E It
77. r enters the alarm point setting mode At the same time a display appears meaning Do you want to view the setting of contact output S1 Figure 1 5 Examples of Display at Setting Level F1 5E eps IM 12C4C1 01E 1 Procedures for Key Operation 1 3 3 Operation to Enter Data Numerical Values IM 12C4C1 01E J N CAUTION Entered data are not canceled even when the power is turned off If you have made a temporary change in the data enter the normal fixed data again If you press the YES key for the display in Figure 1 5 2 the converter switches to the display shown in Figure 1 6 1 The following procedure is for a case where you change the data value 1000 mV set in that display to 500 mV 1 Press the A key once to change the flashing 1 to a minus sign only 2 Press the gt key once to have 0 in the hundreds place begin flashing 3 Enter 5 with the A key 4 Press the ENT key This enters the value 500 and the converter then returns to the display shown in Figure 1 5 1 MODE MODE a a gen a e ANNM ENNM EEEE T EET mV Ls om MEASURE mV v w u MEASURE gt MAN CAL RANGE gt MAN CAL RANGE T E T I DISPLAY SET HOLD z E T DISPLAY SETHOLD a J P E A JENTI HOLD SERVICE a J i P lm A JENTI HOLD SERVICE I gt Pressing the YE
78. reason care must be taken when dealing with modes that relate to each other The setting level has the following four setting modes 1 SETP Alarm point setting mode 2 OUTPU Measuring range setting mode 3 SET HD Hold parameter setting mode 4 WASH Cleaning parameter setting mode This subsection explains the setting procedures for modes 1 to 4 in the sequence in which keys are operated to select these modes 5 3 2 1 SETP Alarm Point Setting Mode Set alarm point values when contact outputs S1 S2 and S3 are set for a high limit low limit high high limit or low low limit alarm within CODEs 14 15 and 16 at the service level If none of these contact outputs are set for an alarm skip this mode The defaults for CODEs 14 15 and 16 at the service level are all set to OFF Figure 5 6 shows the operation flow in the alarm point setting mode YES note 1 gt ENT Alarm point setting for contact output S1 gt ENT Alarm point setting for contact output S2 gt A ENT Alarm point setting for contact output S3 gt ENT Low low limit alarm point setting gt A ENT High high limit alarm point setting mv XXX x S3 LOW S3 HGH note 1 Items not set for the alarm are skipped note 2 This parameter appears when the high high limit or low low limit F5 6E eps alarm is set in CODE 16 Figure 5 6 Flow for Op
79. rts in the proper sequence in advance 3 Fix the cable Adjust the length of the portion of the cable housed within the converter and fix the cable by reassembling the parts through which the cable passes to the cable gland IM 12C4C1 01E 3 9 3 Installation and Wiring 3 2 6 Wiring for Cleaning or Alarm FAIL Contact Output In an application where a holder with a cleaner is used the cleaning signal is delivered from the S3 contact output In other applications the S3 contact output can be used for the high or low alarm From the FAIL contact output a failure signal is output if the converter detects a failure This wiring is done if these contact signals are used The ratings of the relay contacts normally open for contact signal outputs are the same as those of contact S1 or S2 shown in Table 3 1 When connecting equipment to these contact outputs make sure that the equipment satisfies the ratings A CAUTION Contact S3 is open at power off while the FAIL contact output is closed 3 2 6 1 Cable to Be Used Use a cable with a finished OD of 9 to 12 mm Select a 2 or 4 conductor cable depend ing on the number of signals applied 3 2 6 2 Connecting Procedure 1 End treat the cable Strip off about 40 mm of the insulation from the cable end and attach crimping terminal lugs conforming to an M3 screw to the tip of each conductor 2 Connect each cable conductor to the specified terminals S3 terminals two c
80. s set upon shipment default data Check whether or not the default data meet your operating conditions Reset the parameters to suit your operating requirements if necessary To check the defaults make use of the sheet Worksheet for Operation Parameter Setting in the back of this manual It is advisable that if any of the operation parameter settings have been changed the new data be noted in this record When you have determined the use of the S1 S2 and S3 contacts attach the accessory seals in a suitable place next to the indicator lamps on the operation panel so the use of the contacts are clearly identified All Rights Reserved Copyright 1995 Yokogawa Electric Corporation IM 12C4C1 01E 3 Information Covered in This Manual This manual covers all of the information for handling the OR400G ORP Converter including instructions on installation setting of operation parameters inspection and maintenance Information necessary to better understand the product is also included For details on the handling of an ORP sensor used in combination with the OR400G and the holder to install the sensor refer to their respective separate instruction manuals Note that the instruction manuals listed in the following table are for the associated equipment used with the EXA OR series 4 wire ORP Metering System Manuals for Associated Equipment Used with the EXA OR series 4 wire ORP Metering System Model o O Title of Manual Pub
81. s the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 0 1 to 36 0 h 4 Cleaning Time WT min Setting Setting upon Shipment 0 1 minute When you enter the cleaning period W7 min appears in the message display asking you to set the cleaning time Set the cleaning time in minutes Using the gt or the A key show the value being set in the data display and then press the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 0 1 to 10 0 min 5 Relaxation Time RT min Setting Setting upon shipment 0 2 minute If you enter the cleaning time the message display shows RT min asking you to set the relaxation time Set the relaxation time in minutes Using the gt or the A key show the value being set in the data display and then press the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 0 1 to 10 0 min Note that if the hold function is set to OFF in the hold parameter setting mode the output signal does not hold during the cleaning interval including the relaxation time IM 12C4C1 01E 5 Parameter Setting 5 3 3 Parameter Setting at Service Level Enter the appropriate code number to go into each setting mode at the service level A CAUTION Do not enter codes other than those listed in Table 5 3 p
82. set execute If cleaning is aborted with the MODE key the relaxation time is deleted The harm resulting from the effects exercised by the cleaning utility upon measured values can be known by turning on the function to check the return to half value time of CODE 21 in the service level default setting OFF When this function is active an E11 error will result if the converter fails to return to a half value within the allowable time range Consequently the FAIL contact signal turns on To cancel the error select CODE 25 in the service level Output signal Hold When hold is on a Relaxation Cleaning time time Cleaning period Cleaning period Contact output S3 ON j f j Cleaning signal or _ IULIU OL o Cleaning periog Cleaning period Cleaning start Approx 0 25 second ON 100 contact input OFF 100kQ minimum maximum remote command Start in the lt WASH gt mode Have the display START YES STOP YES show he YES key Manual cleaning show MAN and press the YES key AL Point in time when the power is turned on or the cleaning parameter setting is completed F4 2E eps The cleaning time does not reset even if cleaning started with the remote cleaning start command Pressing the MODE key during the cleaning time immediately enters the measurement mode Cleaning continues even if the FAIL contact output turns on during the cleaning time However
83. sured value out of the range Check the sensor cable for any failure from 1500 to1500mV Detection of EEPROM memory check error Request repair by YOKOGAWA Failure in return to half value time Check the electrode E20 Failure in initially adjusted data values Request repair by YOKOGAWA T4 1E eps 4 2 2 Inspection and Maintenance Check the electrode of the ORP sensor at such intervals that the emf does not exceed the tolerable limits A period of one to three months is the recommended interval Clean the ORP sensor and the wetted part of the holder also when you check the electrode IM 12C4C1 01E 4 7 4 Operation 4 3 Shutdown and Restart 4 3 1 Measures for Shutdown Data set in the converter are retained even when the power is turned off If the system needs to be shut down over a prolonged period turn off the power If the ORP sensor is dismounted at that time completely remove any dirt from the sensor for more informa tion see the instruction manual for the ORP sensor 4 3 2 Measures for Restarting When the power is turned on again the ORP converter goes into the measurement mode Check the electrode before you start measurement For measures taken at the restart of equipment other than the ORP converter see their respective separate instruc tion manuals 4 8 IM 12C4C1 01E 5 Parameter Setting 5 Parameter Setting When using the OR400G ORP Converter set data and select functions according to your purpose
84. t Pipe mounting bracket Nut 2 pcs bol U bolt Washers 2 pcs Stanchion 60 5 mm pipe F3 3E eps Figure 3 3 Pipe Mounting Procedure 2 Wall mounting Figure 3 4 illustrates the wall mounting procedure Converter Mounting hole 3 places M8 bolts not supplied Provide bolts of a length suitable for the mounting holes Pipe mounting bracket is attached Only bracket is used when wall mounting Bracket F3 4E eps Figure 3 4 Wall Mounting Procedure 3 Panel mounting Figure 3 5 illustrates the panel mounting procedure Converter Bracket Mount the OR400G after inserting it into the panel cut opening before attaching the bracket Fixing screws 2 pcs F3 5E eps Figure 3 5 Panel Mounting Procedure IM 12C4C1 01E 3 3 3 Installation and Wiring 3 2 Wiring 3 2 1 Types of Wiring for Converter Provide the following types of wiring on the OR400G ORP Converter However do not wire for unused functions 1 Sensor cable or extension cable connection see Subsection 3 2 3 2 Wiring for output signal and for remote cleaning start command contact input see Subsection 3 2 4 3 Wiring for high and low alarms S1 and S2 contact outputs see Subsection 3 2 5 4 Wiring for cleaning or alarm S3 contact output failure FAIL contact output see Subsection 3 2 6 5 Wiring for power supply see Subsection 3 2 7 6 Ground wiring see Subsection 3 2 8 Operation panel Pull on the
85. tallation For key operations used to check or change preset parameter settings see Chapter 5 1 1 Display Panel Section and Keys on Operation Figure 1 1 shows the operation panel of the OR400G ORP Converter There are opera tion keys and a display section on the panel The six keys that can be seen through the front cover can be operated from the outside iesene The broken line indicates the area thet can be viewed through the front cover m Liquid crystal Operation modes i display LCD Setting Service levels HOLD rai MODE O00 mV vv Gal ri ra a i MEASURE MAN CAL CF ec oD T ee A n AN A CA A A TS A ENT Status display ie Data Display SETPOINTS Pointer display Message display ae HOLD Key operation display 7 7777 YES NO MODE CONTACTS T gt E Eo gt gt a i i CC Setting level selector key Lamps indicating output YOKOGAWA of contact signals Operation keys YES Press to answer Yes to the given message in conjuction with the flashing key operation display NO Press to answer Yes to the given message in conjuction with the flashing key operation display MODE _ Press to change from the measurement mode to the operation level Also press this key to return to the measurement mode from other
86. the asymmetric potential check function Selection between ON OFF of the asymmetric potential check function gt N X X 0 L_ 0 Set to the default Pressing the MODE key enters the ra saa aed measurement mode or hold selection mode 0 OFF 1 ON F5 11E eps Figure 5 11 Flow for Operating with Mode for Setting Asymmetric Potential Check Function CODE 05 Mode for Setting Burn up down Function Setting upon shipment 0 OFF The converter is provided with a function that causes the output signal to burn up to 22 mA or burn down to 3 6 mA if it detects a failure FAIL appears on the display In this mode select either ON or OFF of the function and then either burn up or burn down Note The maximum current due to overrange in normal operation is 20 5 mA If you enter CODE 05 to go into this mode the message display shows BURN The converter then asks you to select either ON or OFF of the burn up down func tion If you have selected ON it further asks you to select either Burn up or Burn down If you want the burn up down function turned off press the ENT key with 0 shown on the data display If you want the burn up function turned on press the ENT key with Z shown on the data display If you want the burn down function turned on press the ENT key with 2 shown on the data display Figure 5 12 shows the flow for operating with the mode for setting the burn up down function
87. ther message and then press the YES key If you have selected the value immediately before holding HD LST the hold function becomes active at this moment IM 12C4C1 01E 5 Parameter Setting 3 Setting of Output Value Given as a Current HLD mA Setting upon shipment 12 0 mA If you select the fixed value HD FIX the message display shows HLD mA asking you to set an output value given as a current Using the gt or the A key show the value being set in the data display and then press the ENT key to enter it Entering a value exceeding the following limits causes a type E19 error to occur Setting range 04 0 to 20 5 mA 5 3 2 4 WASH Cleaning Parameter Setting Mode If you have configured contact output S3 to serve as a cleaning signal in CODE 16 at the service level set the cleaning related parameters in this mode If you have otherwise configured the contact output this mode is skipped The cleaning related parameters are the cleaning period cleaning time and relaxation time interval in which the output signal is held even after cleaning is complete so the measured value is not affected by the cleaning utility In this mode you can select between ON OFF of the cleaning timer and use the operation for manual cleaning For details on the cleaning operation see the time chart shown in Figure 4 3 on page 4 6 Figure 5 9 shows the flow for operating with the cleaning parameter setting mode YES
88. time range turning on the FAIL contact signal Error E11 can be canceled by selecting CODE 25 at the service level ORP value A oo No error occurs A B 2 Error 11 occurs i t hait allowable return to half i value time B j 777777 tw cleaning time tr relaxation time F5 20E eps Time gt Figure 5 20 Graphical Representation of Function to Check Return to half value Time Selection between ON 1 and OFF 0 Setting of the allowable return to half value time D IN Pressing the MODE key enters the F5 21E eps measurement mode or hold selection mode Figure 5 21 Flow for Operating with the Mode for Setting the Function to Check Return to half value Time 1 Selection of Function to Check the Return to half value Time HT CHK Setting upon shipment 0 OFF If you enter CODE 21 to go to this mode the message display shows HT CHK The converter then asks you to select either ON or OFF of the function to check the return to half value time If you want the function turned off press the ENT key with 0 shown on the data display If you want the function turned on press the ENT key with 1 shown on the data display IM 12C4C1 01E 5 19 5 Parameter Setting 5 20 2 Setting of Allowable Return to half value Time HT min Setting upon shipment 0 1 minute When you select ON the message display changes to show HT min asking you to set the allowab
89. unspecified numeral T5 1E eps IM 12C4C1 01E 5 3 5 Parameter Setting 5 2 2 Items Set at Setting Level Table 5 2 Items Set at Setting Level Mode Setting Item Display Remarks conditions Defaut Pressing the YES key enters this mode See page 5 8 1500 to 1500 mV 500 mV 1500 to 1500 mV 500 mV Alarm point setting of contact output S3 4 1500 to 1500 mV 250 mV Low low limit alarm point setting of 3 1500 to 1500 mV 1000 mV contact output S3 High high limit alarm point setting of 1500 to 1500 mV 1000 mV contact output S3 Measuring range setting mode Pressing the YES key enters this mode See page 5 9 Minimum value setting in the 1500 to 1500 mV 1500 mV mesuring range Maximum value setting in the 1500 to 1500 mV 1500 mV mesuring range Hold parameter setting mode Pressing the YES key enters this mode See page 5 10 Press the YES key to turn the hold off Press the YES key to turn the hold on ON Selection of the value immediately Press the YES key to select the value before holding or the fixed value immediately before holding Press the YES key to select the fixed value Value immediately before holding Current signal level of the fixed value 4 0 to 20 5 mA 12 0 mV Cleaning parameter setting mode Pressing the YES key enters this mode See page 5 11 Selection between automatic cleaning Press the YES key to select automatic
90. value Maesure the temperature of the checkup solution Check the oxidation reduction potential for that temperature by referring to Figure 6 1 MODE F6 2E eps Figure 6 2 Flow of Operations Used to Check Electrode 6 2 3 Manual Calibration Emf Correction Figure 6 3 shows the flow of manual calibration one point performed to correct the emf of the electrode _ START rc Dip the sensor into the checkup solution YES XXX A Key in the oxidation reduction potential CHANGE _ With the and gt keys YES Calibration starts Wait until the indication stabilizes and then press the YES key This display appears when the calculation based on the keyed in value ends The converter checks the asymmetric potential if the checkup function is turned on If the potential is within the tolerable limits calibration is complete Note 1 Do not press the NO key If you carry out re calibration in this operation the converter will not be calibrated accurately Note 2 If the asymmetric potential is out of the tolerable limits a type E2 error occurs no calibration is carried out FegEeps Figure 6 3 Flow of Manual Calibration Manual calibration for the purpose of correcting the emf can be carried out by dipping tine ORP sensor into the checkup solution If you have an OR8AX Accessory Tool Kit use the sensor stand that comes with it Place the stand so it holds the sensor properly as sh
91. y of Separate Attachments Parts specified with the option codes hood mounting bracket adapter for conduit connection etc are delivered as separate attachments To avoid losing these parts it is recommended that you attach them to the converter before installation For details on assembly see Subsections 2 2 3 and 3 1 3 3 1 2 2 Installation Provisions Make provisions to install the OR400G ORP Converter in a position for easy operation 1 Pipe mounting The OR400G converter is fixed to a stanchion pipe with a U bolt Install a rigid pipe with an OD of 60 5 mm in an upright position a horizontal position is also acceptable 2 Wall mounting Fix the OR400G converter with three M8 bolts not supplied Drill the mounting surface of the wall as shown in Figure 3 1 Unit mm 144 102 Center of the OR400G 35 Three M8 screw holes or three 10 dia through holes F3 1E eps Figure 3 1 Drilling for Wall Mounting 3 Panel mounting Provide a cutout on the panel as shown in Figure 3 2 178 Unit mm k Width of the mounting bracket 137 3 137 F3 2E eps Figure 3 2 Cutout for Panel Mounting 3 2 IM 12C4C1 01E 3 Installation and Wiring 3 1 3 Converter Mounting 1 Pipe mounting Figure 3 3 shows the pipe mounting bracket and the mounting procedure Bracket mounting screws Note If a hood see 2 2 3 is to be attaehed fix it making use of the two upper bracket mounting screws Converter Bracke

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