Ph Sensor Diagnosis - Thermo Scientific Scientific AquaSensors DataStick User Manual

When the point has been successfully calibrated, measured values will be based on the new calibration. The rate of
change in reading from the old measured value to the new will be dependent on the sensor filter value that is entered
in the configuration menu.
Exiting the calibration menu will return the display to the measure screen.
ASCII Command to initiate a 1-Point Sample pH Calibration
Function
1-Point Sample
All Calibration Commands will respond with "OK" if accepted and "ERROR" if not accepted
The status of the calibration can be reviewed with the CALSTATUS command. When the last number returned is a 1,
the calibration is in process. When the last number returned is a 2, the calibration has been successful. Any other number
indicates a specific failure mode (see appendix).
4.1.4

pH Sensor Diagnosis

ASCII Command to View pH Sensor Slope
Function
Get Sensor
Slope
This command is available in DataStick firmware D3.22 or later. The DataStick firmware version can be obtained using
the GCVSN command.
Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide
Command Explanation
CALS1PS Initiates a 1-point calibration of the pH sensor
Command Response
GSSLOPE A number between 0 and –100
Explanation
The pH sensor slope based
on the most-recent calibration
in mV/pH
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