ADC-20 voltage measurement problem?

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Mikko
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Joined: Sat Oct 23, 2010 1:39 pm

ADC-20 voltage measurement problem?

Post by Mikko » Sat Oct 23, 2010 2:11 pm

Hello,

Why voltage measurement ADC-20 data logger is not working like it should? I measurement to voltage that is 24 volts and Uadc should be about 2.5 volts. Ra is the resistance value 866 ohms and Rb 100 ohms. Current measurement operates on all channels correctly, but what's wrong with the measurement of voltage? Perhaps the setting values or not, both can operate at the same time act?

Greetings

-Mikko-
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ziko
Advanced User
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Joined: Fri Dec 01, 2006 10:03 am
Location: St Neots

Re: ADC-20 voltage measurement problem?

Post by ziko » Fri Oct 29, 2010 2:13 pm

Hi,

What do you see in Picolog? Have you tried to use the voltmeter to see what voltage you get after it is attenuated?

Also try using a 10k and 1.1k

Kind regards
Ziko

Technical Specialist
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