Electronics > Beginners
Why won't my meters read millivolts?
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billbyrd1945:
I have a Chinese Fluke 16B and a UNI-T UT61E. I'm trying to learn Arduino. I need to measure millivolts on my current project. Both meters will display DC volts, but neither display anything on DC millivolts. I'll appreciate any help.
Nusa:
What does the V range display for the voltage you are trying to measure in mV?
Terry01:
How many Mv are you trying to measure? You may be trying to measure too many so therefor need to move up to the V range. I'm sure after about 400Mv the Mv range shows "OL" and tops out.
ArthurDent:
Here's my UT61E displaying 1.80 millivolts. One thing that might have happened is that you pressed the yellow function button and the meter is set to Hz which on DC would give you all zeros. More info is needed and a photo would help. Is it set to DC and not AC?
billbyrd1945:
Thanks to everyone. I hope these pictures will help you to help me. The sensor has a pos and neg leg and a center output pin. The output of about 0.6v is correct. But, on millivolts on either of my meters I get OL. In the pictures attached, I merely moved the dial from DCvolts to DCmillivolts.
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