Yokogawa EXAxt SC450 4-Wire Analyzer for Conductivity/Resistivity User Manual
User’s manual
Table of contents
Document Outline
- PREFACE
- 1. INTRODUCTION AND GENERAL DESCRIPTION
- 2. GENERAL SPECIFICATIONS OF EXAxt SC450G
- 3. INSTALLATION AND WIRING
- 4. OPERATION OF EXAxt SC450G
- 4-1. Main display functions
- 4-2. Trending graphics
- 4-3. Zoom in on details
- 4-3-1. Actual mA1 = the current output in mA of the first current output, which is defined as mA1. The range and function of this mA output can be set in:
- 4-3-2. Actual mA2 = the current output in mA of the second current output, which is defined as mA2. The range and function of this mA output can be set in:
- 4-3-3. S1/S2/S3/S4 = the current state of contacts 1 to 4. The functions and settings of the contacts can be set in:
- 4-3-4. C.C. (factory) = the nominal cell constant as determined by the factory calibration during production. This value is set during commissioning, and is found on the nameplate of the sensor or the calibration certificate.
- 4-3-5. C.C. (adjusted) = the calibrated cell constant. When the cell constant of the system is adjusted on-line by grab sample or by calibrated solution technique, the new cell constant is recorded here. This value should not deviate greatly from the orig
- 4-3-6. Temp. comp 1 = the chosen temperature compensation method for the primary measurement.
- 4-3-7. Temp. comp 2 = the chosen temperature compensation method for the secondary measurement.
- 4-3-8. Polarization = the polarization is measured by the input circuitry. Monitoring this figure gives a guide to progressive fouling of the sensor.
- 4-3-9. Sensor ohms = the input measurement as an uncompensated resistance value.
- 4-3-10. Last calibrated at = the date of the last calibration
- 4-3-11. Calibration due at = the date scheduled for the next calibration. This field is determined by the calibration interval.
- 4-3-12. Projected calibration at =
- 4-3-13. HART ID = a part of the HART device ID (descriptor)
- 4-3-14. Software revision = the revision level of the software in the instrument.
- 4-3-15. HART Device revision
- 4-3-16. Logbook
- 4.3.17. Trouble shooting
- 4-4. Information function
- 4-5. Setup-Calibration & commissioning
- 4-6. Secondary- primary value display switch
- 4-7. Navigation of the menu structure
- 5. MENU STRUCTURE COMMISSIONING
- 5-1. Configure sensor
- 5-2. Temperature setting
- 5-3. Temperature compensation
- 5-4. Calibration settings
- 5-5. Concentration
- 5-6. mA output setup
- 5-7. Contact output setup
- 5-8. Fail
- 5-9. Simulate
- 5-10. Water for Injection Monitoring (USP 645 and EU 0169).
- 5-11. Input contacts
- 5-12. Error configuration
- 5-13. Logbook configuration
- 5-14. Advanced setup
- 5-15. Display setup
- 6. CALIBRATION
- 7. MAINTENANCE
- 8. TROUBLESHOOTING
- 9. QUALITY INSPECTION
- 10. SPARE PARTS
- APPENDICES
- Appendix 1
- Temperature compensation
- Appendix 2
- TDS readings
- Appendix 3
- Calibration solutions for conductivity
- Appendix 4
- Sensor selection for the EXAxt SC450G
- Appendix 5, How to enter the cell constant for the SC21¨G, SC8SG, and SC4AJ
- Appendix 6, HART HHT (275/375) Menu structure
- Appendix 7, Control drawing for FM approval
- CMPL
- Revision Record