Is my multimeter dying? - SailNet Community
 
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post #1 of 10 Old 03-25-2011 Thread Starter
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Is my multimeter dying?

I bought a digital multimeter about three years ago and have been using it fairly frequently. Sometimes I forget to turn it off, and after a few minutes it beeps to remind me (or maybe turns off on its own, don't quite remember).

The other day I was using the ohmmeter feature and noticed that the reading would increase after the initial reading, even if the probes weren't moving at all on the surface.

If I just touch the probes together, the reading is 00.0 and then immediately starts to increase, and then stops after about four or five seconds. Where it stops is somewhat variable; before I started writing this post it would stop at 1.4 ohms, then just now it stopped at 3.9 ohms, and then 2.8 ohms.

I'm guessing this means that the internal battery is dying, and so can't handle a load. Does that make sense?

I suppose I could remove the battery and test it with another voltmeter :P

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post #2 of 10 Old 03-25-2011
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Yeah.... just change the battery - easy check. If these symptoms disappear you've got it... if not - I guess a better one is in your future!

Ron

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post #3 of 10 Old 03-25-2011 Thread Starter
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There's no convenient door to access the battery, so I think I have to take off the back cover of the thing. Which is probably more effort than posting to a forum

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post #4 of 10 Old 03-26-2011
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In 3 years you have not changed the battery? I think the alkaline battery could be leaked and corroded the terminals or you need a new set of battery.

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post #5 of 10 Old 03-26-2011
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Quote:
Originally Posted by AdamLein View Post
There's no convenient door to access the battery, so I think I have to take off the back cover of the thing. Which is probably more effort than posting to a forum
Yep, seems you have tough job there.
And then theres the recycling to worry about!
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post #6 of 10 Old 03-26-2011
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Battery.....the front half is probably held on to the back half with several soon to be lost screws.

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post #7 of 10 Old 03-26-2011
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Quote:
Originally Posted by AdamLein View Post
There's no convenient door to access the battery, so I think I have to take off the back cover of the thing.
Yeah, mine is the same. Weird, eh? No battery door.
Mine has a lil 9 volt battery in it.

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post #8 of 10 Old 03-26-2011
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Our Fluke meters are the same.. you need to split the case to get at the battery.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
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post #9 of 10 Old 03-26-2011
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Maybe just cut the back off and the duct tape it back on. Wouldn't have to fool with those damn screws.
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post #10 of 10 Old 03-26-2011
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mdbee

Glad you don't have access to my multimeters!

Brian
Living aboard in Victoria Harbour
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