Analog Channel Calibration - Global Water GL400 User Manual

Analog Channel Calibration

Change the Sensor Type or EU (engineering units) field to the unit type you are calibrating to (i.e. meters,
feet, etc.) by clicking in the field and typing the unit name. Note that the Sensor Type or EU field is only a
text label. Actual readings are determined by the following calibration steps.
In case you make a mistake during the calibration process, write down the existing values in the High Raw
and Low Raw fields before continuing (in this case 64435 and 12704). Click the Calibrate button.
If performing a lab calibration, insert the sensor into the appropriate calibration meter and set to full scale
range of the sensor. If performing an environmental calibration, insert sensor into its targeted environment
at conditions of at least 10% of full scale range. For example a 120' water level sensor should be calibrated
at a water depth of at least 12'. Calibrating at greater percentages (up to 100%) provides greater accuracy.
Global Water ● (800)876-1172 ● www.globalw.com
Using Global Logger Software
Enter the maximum unit range of the
sensor (120 for a 120' level sensor in
this example) in the highest value text
field and click the Next button.
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