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Author Topic: Inside old ampere meter  (Read 3062 times)

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Offline norELTopic starter

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Inside old ampere meter
« on: October 29, 2011, 11:43:29 pm »
A little video of inside my old panel mount ampere meter.

http://youtu.be/d1dRea9h7cI
« Last Edit: October 29, 2011, 11:45:07 pm by norEL »
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Offline Kiriakos-GR

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Re: Inside old ampere meter
« Reply #1 on: October 30, 2011, 12:06:39 am »
The current shunt looks like hell  ;D  Other than that Perfect ..  ;)
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Offline tesla500

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Re: Inside old ampere meter
« Reply #2 on: October 30, 2011, 12:37:40 am »
Quote from: Kiriakos-GR on October 30, 2011, 12:06:39 am
The current shunt looks like hell  ;D  Other than that Perfect ..  ;)

That's no shunt, that's the meter's coil, which handles the full measured current.  It has seen better days, but there's virtually no voltage stress between turns. There could be voltage stress to case though, something to watch out for if using the meter.
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Offline amspire

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Re: Inside old ampere meter
« Reply #3 on: October 30, 2011, 01:21:54 am »
Looks like a moving iron meter. If it is, it can do both DC and AC current, and it is true RMS - unlike a moving coil meter.
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