|Input||Value R1||Value R2||Fullscale|
Circuit for GP-HR with 3 voltage divider inputs
It is preferable that no part of the circuit is connected to mains earth while the logger is connected to the computer as this may cause ground loop currents.
If the input voltage is floating with respect to mains earth then no precautions need to be taken when connecting the logger to a computer.
Setting up Voltage channels using the OmniLog Software
Connect the GP-HR logger to a computer and Run the OmniLog software
From the Logger Control Screen select Channel and Probe Setup
Select the Channel that you wish to setup (Ch 1, 2 or 3)
From the Probe box select the Volt option as shown
Notice that after the Volt probe has been chosen the Units in the Unit and Scaling box has been set to V
Now give the Channel a meaningful Long and Short name in the Logger Channel Name box as shown below
If you are using a voltage divider, select the value of the Voltage divider from the Select Button in the Units and Scaling box as shown.
Click on the Write Unit, Scaling and Calibration values to the Logger button to send the new settings to the logger.
If you wish to calibrate the Voltage channel at this point, follow the calibration procedure in the OmniLog Help User Manual. You can see this procedure by clicking on the Calibration Notes button in the Calibration box.