Hach AN-ISE sc Addendum To The Operator Manual page 22

Troubleshooting
6.3.2 Troubleshooting during calibration
Symptom
Sensor code
1, 2
Ammonium
Offset
Slopw
Potassium
Offset
Slope
1,3
Nitrate
Offset
Slope
Chloride
Offset
Slope
1
Applies to AN-ISE sc
2
Applies to AISE sc
3
Applies to NISE sc
22
1 applies to AN-ISE sc
3 applies to NISE sc
Possible cause
Sensor code entered incorrectly
Error during the last ammonium correction, sensor
cartridge too old, contaminated, faulty
Error during the last potassium correction, sensor
cartridge too old, contaminated, faulty
Error during the last nitrate correction, sensor
cartridge too old, contaminated, faulty
Error during the last chloride correction, sensor
cartridge too old, contaminated, faulty
Corrective measures
Using the certificate, check whether the
sensor code was entered correctly.
Repeat the correction.
Use the previous correction.
Clean or replace the sensor cartridge.
Repeat the correction.
Use the previous correction.
Clean or replace the sensor cartridge.
Repeat the correction.
Use the previous correction.
Clean or replace the sensor cartridge.
Repeat the correction.
Use the previous correction.
Clean or replace the sensor cartridge.
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