I've got a generator, and I need to set the frequency, so I bought a cheap frequency meter on ebay. It's a Wacline N20394A analog panel meter apparently off an old Kurz & Root generator. It measures 55-65 Hz. It has two terminals on the back, one is marked with a + sign, the other is unmarked. There is a little spring like wire that bridges the two terminals in the back. I have no instructions, diagrams, etc, and have no idea how to hook up this meter. Anyone out there have any ideas?
Ed.
I may easily be wrong, but my first thought was that this may be a dc milli/micro-ammeter with a scale marked in Hz - and not something intrinsically capable of measuring freqency. And that the little spring like wire is simply shorting out the terminals to damp the needle movement during transit.
Is there any other markings on the back or front? Posting links to a photo of front and back may help..
On the front it says "F.S. * 200 UA"
Ed.
That means Full Scale 200 microamps. Sue guessed right.
Here are some meter that are typically found on generators.
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