Hach AISE sc, Addendum To The Operator Manual, Page: 22 / 152

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