Yokogawa EXAxt PH450 4-Wire Analyzer for pH and ORP Manual do Utilizador Página 1

IM 12B07C05-01E4th EditionUser’sManualModel PH450G [Style: S2]pH and ORP Converter

2 IM 12B07C05-01E2. GENERAL SPECIFICATIONS OF EXAxt PH450GA) Inputs specs :Dualhighimpedanceinput(≥1012Ω) (under referance conditions)B) In

3IM 12B07C05-01E2 GENERALSPECIFICATIONSF) Contact input : Remote wash cycle start.G) Temperature compensation Function :Automaticormanual C

4 IM 12B07C05-01ECAUTION This instrument is a Class A product, and it is designed for use in the industrial environment. Please use this instrument i

5IM 12B07C05-01E3 INSTALLATIONANDWIRING3-1. Installation and dimensions3-1-1. Installation siteThe EXAxt 450 converter is weatherproof and can be i

6 IM 12B07C05-01Emin.185 (7.25")min.195(7.75")138(5.43")138(5.43")M6M6M5138(5.43")+1 0138(5.43")+1 0Figure 3-2. Opt

7IM 12B07C05-01E3 INSTALLATIONANDWIRING3-2. Wiring3-2-1. PreparationRefer to figure 3-4. The relay contact terminals and power supply connections a

8 IM 12B07C05-01EHigh voltage sectionContact(S1, S2)outputcablesmAcablesContact(S3, S4)outputcablesSensorCablesInputcontactPowercableSuitable for cabl

9IM 12B07C05-01E3 INSTALLATIONANDWIRING3-3. Wiring the power supply3-3-1. General precautionsMake sure the power supply is switched off. Also, make

10 IM 12B07C05-01E3-3-5. Grounding the housingForthesafetyoftheuserandtoprotecttheinstrument against interference, the housing must always b

11IM 12B07C05-01E3 INSTALLATIONANDWIRING3-4. Wiring the contact signals3-4-1. General precautionsThe contact output signals consist of volt-age-fre

CommissioningNoteThis page may be referred to when reading pages where subsequent submenu screens are shown in the text. Connection to the relevant su

12 IM 12B07C05-01ETable 3-1. Impedance measuring jumpersJumper Settings Application & Sensor Connections1613 17 15NormalpHsensors(includingFU2

13IM 12B07C05-01E3 INSTALLATIONANDWIRING3-7. Sensor wiringRefer to figure 3-10, which includes drawings that outline sensor wiring.The EXAxt 450 ca

14 IM 12B07C05-01E* ***GreenYellowRedRedBlueBlueBlueRedBlackRedCable markers11 Temperature12 Temperature13 Reference14 Solution ground15 Glass (meas

15IM 12B07C05-01E3 INSTALLATIONANDWIRINGFigure 3-10.c. Sensor wiring for redox measurement11 TEMPERATURE12 TEMPERATURE13 REFERENCE14 SOLUTION

16 IM 12B07C05-01ERemovestandard tuleFigure 3.11.b. Content of grommet setFigure 3.11.a. Grommet set use3-7-2. Sensor cable connection with special g

17IM 12B07C05-01E3 INSTALLATIONANDWIRING3-7-3. Sensor cable connections using junc-tion box (BA10) and extension cable (WF10)Where a convenient in

18 IM 12B07C05-01EExtension cable may be purchased in bulk quantities or in pre-finished lengths. In the case of bulk quantities cut to length, then i

19IM 12B07C05-01E4OPERATIONOFEXAxtPH450G4-1. Main display functionsT ag:EXAxt PH45 0 HOLD W AS H 25.0 236.0 mV S4 S3 S2 S1 Go to trend screenGo to

20 IM 12B07C05-01Eofthesensor(default7.00pH).TheZEROvalue indicates the condition of the sensor. If the value exceeds +/- 120 mV (or user defi

21IM 12B07C05-01E4OPERATIONOFEXAxtPH450G4-3-11. HART ID =apartoftheHARTdeviceID(descriptor)4-3-12. Software revision =therevisionlevel

PREFACEElectrostatic dischargeThe EXAxt converter contains devices that can be damaged by electrostatic discharge. When servicing this equipment, plea

22 IM 12B07C05-01E4-7. Navigation of the menu structure“HOMEKEY”returntomaindisplay“RETURNKEY”exittopreviousdisplayMain displayPrimary setup

23IM 12B07C05-01E4OPERATIONOFEXAxtPH450G

24 IM 12B07C05-01E5-1. Sensor setupSensortype:Thesensorconnectiontotheter-minals is determining the setting of this parameter. Three selec-tio

25IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGMenu Parameter Default Range values min. max.Manual ManualTemp. 25ºC,77ºF -30ºC,-22ºF

26 IM 12B07C05-01E5-5. Calibration settingsCalibration settings for a pH converter involve slope (sensitivity), zero (aspot) and ITP (iso thermal poin

27IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGMenu Parameter Default Range values min. max.Limitsandtiming Zerohigh 120mV 0mV  53

28 IM 12B07C05-01E5-7. mA output setupThe general procedure is to first define the function (control, output, simulate, off) of the output and second

29IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGmA2 similar structure to mA1Menu Parameter Default Range values min. max.mA1 (control) Expir

30 IM 12B07C05-01EExpire timeIftheoutputisover100%forlongerthantheexpiretime,theoutputwillreturnto0%.Damping timeThe response to a st

31IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGS2, S3, S4 Similar structure to S1 Menu Parameter Default Range values min. max.PID-control

ii The following safety symbols are used on the product as well as in this manual.DANGERThis symbol indicates that an operator must follow the instruc

32 IM 12B07C05-01E5-9. FailA fail contact is energized when a fail situation occurs.Failsituationsareconfiguredinsection5-10.ForSOFTFailsth

33IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGMenu Parameter Default Range values min. max.Generic wash settings Interval time 6 hour 0.

34 IM 12B07C05-01E5-11. Error configurationErrors 1/3 ~ 3/3Errors are intended to notify the user of any unwanted situations. The user can determine w

35IM 12B07C05-01E5MENU STRUCTURECOMMISSIONING

36 IM 12B07C05-01E5-13. Advanced setupDefaultsThe functionality of the EXAxt allows to save and load defaults to come to a known instru-ment setting.

37IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGMenu Parameter Default Range values Low HighHart Network address 0 0 15

38 IM 12B07C05-01E5-14. Display setupMain displayThe main display consists of three lines with Process Values. Each line is user definable with the re

39IM 12B07C05-01E5MENU STRUCTURECOMMISSIONINGMenu Parameter Default Range values Low HighY-axis pH low 0 pH -inf +infY-axis pH high

40 IM 12B07C05-01E6-1. Calibration check with buffer solutions.The following tips will help to produce a good calibration.1. Before starting a calibra

41IM 12B07C05-01E6CALIBRATIONWhen the right buffer tables are entered, automatic calibration is the easiest and most reliable calibration method to u

IM 12B07C05-01EiiiIM 12B07C05-01E4th Edition: Mar. 2012(YK) All Rights Reserved, Copyright © 2007, Yokogawa Electric CorporationTABLE OF CONTENTSPREFA

42 IM 12B07C05-01ETermination of a wash cycleThe user can decide to terminate the current wash cycle. This is done in the main screen (all other scree

43IM 12B07C05-01E7 MAINTENANCE7-1. Periodic maintenance The converter requires very little periodic main-tenance, except to make sure the front windo

44 IM 12B07C05-01EWhere a refillable (flowing electrolyte) refer-ence system is employed, make sure that the reservoir is kept topped up. The rate of

45IM 12B07C05-01E8TROUBLESHOOTING8-1. General The EXAxt is a microprocessor-based con-verter that performs continuous self-diagnostics to verify that

46 IM 12B07C05-01E9. QUALITY INSPECTIONQualityInspectionStandards PH450GpH and ORP Converter QIS 12B07C05-01E1st Edition: Jul. 2007 1. Scope This

47IM 12B07C05-01E9QUALITYINSPECTION2/3 QIS 12B07C05-01EThis test is done on the “HIF” display of “Factory Mode”. a. Touch the [Setup] icon. b. Touc

48 IM 12B07C05-01E3/3 QIS 12B07C05-01ETable 4 Data Display Current Output (mA DC) 4 4 ±0.02 12 12 ±0.02 20 20 ±0.02 After all tests are completed

49IM 12B07C05-01E9QUALITYINSPECTION

50 IM 12B07C05-01E10. SPARE PARTSSeeCustomerMaintenancePartsList.

51IM 12B07C05-01EAAPPENDICESAPPENDICESAppendix 1, Buffer tablesNIST (IEC 60746-2)/DIN 19266°C 0 5 10 15 20 25 30 35 38 40 45 50 55 60 70 80 90 951,

IM 12B07C05-01Eiv 4-3-5. Sensor mV. ...204-3-6. Reference im

52 IM 12B07C05-01EOnline menu Level 1 menu Level 2 menu Level 3 menu Level 4 menuProcess values Primary value (pH)*Secondaryvalue(Temp.)Tertiaryval

53IM 12B07C05-01EAAPPENDICESOnline menu Level 1 menu Level 2 menu Level 3 menuLevel 4 menuMost appl. ErrorCalib / WashError description / remedypH 1pt

54 IM 12B07C05-01EOnline menu Level 1 menu Level 2 menu Level 3 menu Level 4 menuCommissioningMeintenance setup Calib. settings Buffer setSero/Slope/I

55IM 12B07C05-01EAAPPENDICESOnline menuLevel 1 menu Level 2 menu Level 3 menu Level 4 menuCommissioning Output setup HOLD setup HOLD L/FmA1fixed*mA2

56 IM 12B07C05-01EThe matrix can be cleared before entering new values. Next new matrix values can be entered as described above. The EXAxt can interp

57IM 12B07C05-01EAAPPENDICESAppendix 4, Control drawing for FM approval

58 IM 12B07C05-01E

CMPL12B07C05-02ECustomerMaintenanceParts List©Copyright2007,4thEdition:Oct,2011(YK)Subjecttochangewithoutnotice.Model PH450G [Style: S2]pH

CMPL12B07C05-02E24thEdition:Oct.2011(YK)2345311078963Pipe/Wall Mounting Hardware (Option code: /U)Awning Hood (Option code: /H5)Panel Mounting H

Revision RecordManual Title : Model PH450G[Style:S2]pHandORPConverter Manual Number : IM 12B07C05-01E Edition Date Remark (s)1st Jul. 2007

IM 12B07C05-01Ev8. TROUBLESHOOTING ...458-1. General ...

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1IM 12B07C05-01E1 INTRODUCTIONANDGENERALDESCRIPTIONThe Yokogawa EXAxt PH450G is a converter designed for industrial process monitoring, meas-ureme