Thermo Scientific Scientific AquaSensors DataStick User Manual page 82

ASCII Command to Initiate a Toroidal Zero Calibration
Function
Zero Calibration
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 progressing. When the last number returned is a 2, the calibration has been successful. Any other number
indicates a specific failure mode (see appendix).
4 . 4 . 3 . 2 O N E - P O I N T S A M P L E C A L I B R A T I O N
Select 1-POINT SAMPLE from the calibration menu to begin a toroidal conductivity span calibration.
When the 1-point sample method is chosen, the status box will prompt the user to enter the desired calibration value.
This calibration should be initiated when the sensor is in a liquid that is at the high end of the expected measuring range.
Stable temperature and sensor readings will also help to establish an accurate calibration.
Once the desired value for calibration is entered, the CALIBRATE button becomes active. Once the displayed sensor
and temperature values are stable and near expected values, click the CALIBRATE button to initiate the calibration
or click EXIT to return to the main measure screen.
Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide
Command Explanation
CALSZERO Initiates a zero calibration of toroidal sensor
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