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mrdouble
Joined: 10 Oct 2010 Posts: 6
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Posted: Mon Nov 01, 2010 4:08 am Post subject: Why does my fluke autoscale seem to flake out when measuring |
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Why does my fluke autoscale seem to flake out when measuring bad resistors? Example I just measured a 1.5M ohm resistor that I figured was bad but when I measured it ,it read ".0600 M" ohms.
I have seen other DVMs do this but never thought to ask why.
Thanks
Micheal |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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Posted: Tue Nov 02, 2010 2:14 am Post subject: |
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While you may have a calibration issue, I've never seen a problem in measuring resistors in general but I do know that with higher megaohm values, you may get incorrect readings at times. Also make sure the probe tips are shiny clean. Slight bit of tarnish can cause any meter to be way off.
Are you sure it was a 1.5 meg ohm resistor that you were measuring? |
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Guest
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Posted: Tue Nov 02, 2010 3:50 am Post subject: |
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Yes sir. Positive they are 1.5M and the tips are new fluke probes
Thing is , if the resistor is good it has been my observation that it always measures right and scales it accordingly .
It's a Fluke 189 if that means anything.
Weird isn't it. |
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mrdouble
Joined: 10 Oct 2010 Posts: 6
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Posted: Tue Nov 02, 2010 3:54 am Post subject: |
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That was my post above
I guess I'll take the resistor to work and what my meter at work does.
Thank you |
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moped_1
Joined: 21 Nov 2010 Posts: 1 Location: Denmark
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Posted: Sun Nov 21, 2010 5:33 pm Post subject: Re: Why does my fluke autoscale seem to flake out when measu |
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Hi.
Maybe fuse contact inside Fluke is bad or def.
If batt is poor you will get incorrect data
moped_1 _________________ kc |
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