Why am I unable to clear Calibration Required or Replace Sensor warnings for pHD or ORP sensor?

Document ID

Document ID TE4350

Published Date

Published Date 06/28/2022
Question
Why am I unable to clear Calibration Required or Replace Sensor warnings for pHD or ORP sensor?
Summary
Unable to clear Calibration Required or Replace Sensor warnings for pHD or ORP sensors.
Answer
Check the software version of the sensor using the sc controller interface.  Go to Menu > Sensor Setup > Diag/Test > Sensor Info
There was a software version issue for the Differential pH and ORP sensors that caused the calibration reminder and sensor days counter to not count correctly or be able to be cleared.  This was an issue with sensor software version 2.0 and 2.01.  If this issue happens, a firmware update to V2.1 or greater will fix the issue on the sensors. This is true for any of the sc controllers.

Please find the most up to date version of pHD sc Card Image Software Update

See the following articles for more information on how to clear these warnings
What does it mean if the sc controller is showing "replace sensor" warning for my pHD probe and how do I clear it?
How is the SC sensor or module software updated using the SC200 controller?

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