YOKOGAWA EXAxt 450 User Manual

IM 12D06D05-01E
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6. CALIBRATION ...........................................................................................................36
6-1.Beforecalibration.................................................................................................36
6-2. Cell constant manual ...........................................................................................38
6-3. Cell constant automatic .......................................................................................38
6-4.Air(zero)calibration............................................................................................38
6-5.Samplecalibration ...............................................................................................38
6-6. Temperature coefficient calibration ...................................................................... 38
6-7. Temperature calibration ......................................................................................39
6-8.Operationofholdfunctionduringcalibration ....................................................... 39
7. MAINTENANCE .........................................................................................................40
7-1. Periodic maintenance .........................................................................................40
7-2. Periodic maintenance of the sensor ....................................................................40
7-3. Cleaning methods................................................................................................40
7-4.LCDadjustment ................................................................................................... 40
8. TROUBLESHOOTING ...............................................................................................42
8-1.General ............................................................................................................... 42
8-2. Calibration check .................................................................................................42
8-3. Predictive maintenance .......................................................................................42
8-4.Poorcalibrationtechnique ................................................................................... 42
8-5. Error displays and actions ...................................................................................42
9. QUALITY INSPECTION ............................................................................................. 43
10. SPARE PARTS ........................................................................................................47
APPENDICES ................................................................................................................48
APPENDIX 1, Temperature compensation .................................................................48
APPENDIX 2, Temperature compensation matrix. .....................................................51
APPENDIX 3, Calibration solutions for conductivity ...................................................52
APPENDIX4,Measurementprinciple ........................................................................53
APPENDIX 5, HART HHT (275/375) Menu structure .................................................54
APPENDIX6,ControldrawingforFMapproval .........................................................58
Customer Maintenance Parts List (for Style: S2) ......................CMPL 12D06D05-02E
Revision Record ..............................................................................................................i

YOKOGAWA EXAxt 450 Specifications

General

Brand	YOKOGAWA
Model	EXAxt 450
Category	Media Converter
Language	English