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Currently I have a Digitech analogue multimeter, but its lowest current range is 50uA FSD, which is just barely low enough.

My Henry Fried book on repairing quartz watches talks about a Citizen 3002 meter which by the drawings has a range down to 12uA FSD, which would be much more useful.

I don't like my luck in finding one of those meters for a reasonable price, but is anyone else aware of a brand of analogue multmeters that won't break the bank that has a range that goes down that low?

My local electronics stores Jaycar and Altronics each only has one analogue multimeter and both of them the lowest range is 50uA FSD.

Its not an essential need to get a better meter, but it is something I would like to have.

I'm starting to develop a like for the 1970s and early 1980s better quality quartz movements.

Posted

So far the best I've found only has 25uA FSD, I'm looking for 12uA FSD like the old Timex one

Posted

Finding these citizen meteor on eBay for instance is going to be really tough it occasionally shows up but very seldom. Then Seiko had two analog meters the second one was identical to the citizen and two additional digital meters. I find almost none of these ever show up on eBay.

Finding suitable digital meters is easy finding suitable microamp meters analog is not. Typically the lowest range analog meter you find is 50 µA occasionally you might find a 25 µA but it's usually expensive. The options would be to get a higher range analog meter and Bill the circuit to make it into a microamp meter. Or just give up and go with digital. Personally I really like an analog meter when I'm working on quartz watches for measuring the current consumption. For everything else I use a digital meter.

Then there is another option that I almost forgot about so I'm attaching a picture and a picture of the sins meter so you know what you're looking for. Then attached to the bottom of the analog meter is the power source it lets you use a larger battery. The other option is Bulova meter is a nice big meter with a nice low current range. I think Bulova may even have a tech sheet of showing how to use that for quartz watch if you're interested I'll have to look for it. It basically needs a big capacitor to smooth out the readings.

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