|
|
|
|
|
Strictly speaking there is no calibration procedure for resistance measurements but the value of the load resistor used in the logger circuit must be entered as an offset into the Calibration Offset box.
The circuit for the measurment of resistance using a GP-HR is:
The Omnilog software needs to know the exact value of R1, the load resistor.
The circuit should be unplugged from the logger and the exact value of the load resistor read in Kohms with an accurate meter.
The value in Kohms is then entered into the Offset box in the calibration area. eg, If the read resistance is 118.23Kohms then 118.23 is entered as the Calibration offset as shown below:
Click the Write Unit, Scaling and Calibration Values to logger button
The Calibration process is now complete