Hello,
Is Voltage battery measure single-ended or differential analog reading ?
Thanks
Posted 02 September 2013 - 04:27 AM
Hello,
Is Voltage battery measure single-ended or differential analog reading ?
Thanks
Posted 03 September 2013 - 11:03 AM
For 1 battery, you would usually do single-ended where you connect the - to GND and the + to AINx.
Posted 03 September 2013 - 11:30 AM
ok, Thanks for your reply.
And if i have two batteries to check what is the good practise ?
Posted 03 September 2013 - 04:20 PM
You have to consider ground location and common-mode voltage, among other things:
http://labjack.com/s...l-analog-inputs
What is the voltage of each battery? Are they connected in series? Which LabJack are you using?
Posted 04 September 2013 - 12:37 AM
Each batterys is 12 V and they 're independent of each other.
Labjack is U3 HV
Posted 04 September 2013 - 09:15 AM
If they are independent of each other, the best option is to connect the negatives of both batteries together and run a single wire from there to GND on the U3. Then connect each positive to an AINx channel to make a single-ended measurement of each. Note that you need to use the special range (which is -10 to +20 volts), so depending on software that means you need to set the negative channel to 32.
Posted 05 September 2013 - 01:16 AM
Thanks for your reply. I m going to use this setup.
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