Channel Calibration
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MXD70 Dissolved Oxygen
Setup and Operating Guide
Channel Calibration
Calibration Manual Pressure Input
This setting allows a different fixed pressure value to
be used when calibrating. Makes it easier to calibrate
a sensor outside of the process environment.
NB. If the manual pressure input is changed in the
channel setup menu then the calibration manual
pressure is changed to the same value.
Only available when the pressure compensation
mode is set to manual in the channel setup menu.
/ – Increase / Decrease Digit
– Select Next Digit
EXIT
– Cancel
– Save Value
Sensor Zero Calibration
To start the dissolved oxygen sensor’s zero
calibration select the “Sensor Zero Cal” item from the
desired channel’s calibration menu and press enter.
/ – Select Option
EXIT
– Return to Select Calibration Channel
– Enter Sensor Zero Calibration
Place Sensor In Oxygen Purged Environment
Place the sensor in a 0 % saturated solution and press
enter to begin sampling.
If the sensor is new, pressing the “new” button will
reset the existing calibration and add a “new sensor”
entry in the calibration history.
Once the calibration has finished the instrument will
give an update on the sensor’s operating condition.
Press enter to finish the calibration
NEW
– Register New Sensor
EXIT
– Exit Calibration Without Saving
– Initiate Zero Calibration
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