AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | OI/AWT420-EN REV. B
69
Temperature calibration
1 At the Calibrate level, press the key:
The Calibrate menu is displayed:
2 Use the / keys to select the sensor to be calibrated,
and press the key to confirm selection.
The pH calibration menu is displayed:
3 Press the / keys to select Temperature Cal and press
the key to confirm selection.
The temperature calibration screen is displayed:
4 Wait for the displayed value to stabilize and press the key
to proceed to the next step.
The buffer temperature is displayed:
5 Use the / and keys to set the temperature and press
the key to confirm changes.
The temperature calibration process screen is displayed:
On completion the result screen is displayed.
• If the calibration passes the slope and offset values are
displayed.
• If the calibration fails the reason for failure is displayed.
Note. The calibration can be canceled at any time during the
process by pressing the Abort key ( ).
Calibrate
Back
Select
S1 : pH/Redox (ORP)
S2 : pH/Redox (ORP)
pH Buffers
Hold Outputs
Calibrate
Back
Select
Sensor Cal
Temperature Cal
Edit Cal
Sample Collection
Collection Complete
Restore Defaults
Temperature Cal
TMP 25.0 °C
Continue when Stable
Abort
Continue
Temperature Cal
TMP 25.0 °C
New 0025.0
Next
Continue
Temperature Cal
TMP 25.0 °C
Abort
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