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Zachary JenningsAug 17, 2025
What to do if my Hach Accessories say 'CAL OVERDUE'?
- JJanice DiazAug 17, 2025
If your Hach Accessories display a 'CAL OVERDUE' message, you should calibrate the sensor.
To Next PageTo Next PageWhat to do if my Hach Accessories say 'CAL OVERDUE'?
If your Hach Accessories display a 'CAL OVERDUE' message, you should calibrate the sensor.
What to do if my Hach Accessories say 'NOT CALIBRATED'?
If the Hach Accessories show 'NOT CALIBRATED', you should calibrate the sensor.
What does 'REPLACE SENSOR' mean on my Hach Accessories, and what should I do?
If the Hach Accessories display 'REPLACE SENSOR' because the sensor has been in operation for more than 365 days, calibrate the sensor with a reference solution and reset the sensor days. If the calibration fails, call technical support.
General| Brand | Hach |
|---|---|
| Model | POLYMETRON 8312 |
| Category | Measuring Instruments |
| Language | English |
