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Mille
User
Joined: 15 Apr 2008
Posts: 4
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 Posted: Fri Jun 06, 2008 7:36 am Post subject: low voltages measurement |
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I would like to measure continuous low voltages (about 0.1 mV) using the pt104.
If I connect (short-circuit) pins V+ and ground (single ended mode), I read a value around -0.02 mV, using picolog recorder.
When measuring a low voltage, the value is 0.02mV under the value given by a multimeter.
The value 0.02 mV is not really constant so that I cannot just add it to get the real result.
I have tried using the differential mode by connecting (short-circuit) pins V- and ground. The error on the value given by the multimeter is then between -0.01 mV and 0.01 mV, with high frequency variations.
What can I do to get the real value?
Thanks
Sincerely,
Francois |
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picojohn
Site Admin
Joined: 11 Jun 2007
Posts: 391
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Mille
User
Joined: 15 Apr 2008
Posts: 4
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| Posted: Mon Jun 09, 2008 6:24 am Post subject: |
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Hello,
Yes I did ...
Francois |
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picojohn
Site Admin
Joined: 11 Jun 2007
Posts: 391
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| Posted: Mon Jun 09, 2008 12:48 pm Post subject: |
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Hello Francois,
If you could send the .plw file from this setup to support@picotech.com for my attention, then I will take a look.
Regards
John |
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