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[SOLVED] Fluke 87-V Not reading current values properly

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DFW Z33

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Hi guys,

I am new to Fluke multimeters, but up until now, I have had no issues. However, I am trying to measure current in one of my projects, and I get some strange values. When I hook up the leads to measure mA, and connect it in series with a resistor, it gets a value that is much lower than the actual current, and then the value will fall slowly until it reads 0mA. I have verified with another multimeter that the current should read 35mA.

I performed a fuse test, and my fuse for the mA lead is reading 1KOhms. Does this very high for a fuse? My other 1A lead has a fuse reading of 0.2 Ohms. Does anyone know what may be wrong?

Thanks,
John

- - - Updated - - -

SOLVED: I did not realize that I had it selected to measure AC current instead of DC current :/
 

Hello John,

I performed a fuse test, and my fuse for the mA lead is reading 1KOhms
Click to expand...
1 KΩ is too much for a fuse. I've check some fuses and for example a fuse of 50mA has a resistance of approximately 90Ω and for a fuse of 200mA it will be approximately 1Ω.

My suggestion for you: Change the fuse. :smile:

For you measuring think also, that the resistance of you instrument is in series with your load. So the current will be a little bit less then the real.

Regards

Rainer
 

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