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Old 22-10-17, 06:30 PM   #1
1956ld1
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Default AVO Model 7 question

Hi all,
Ive had my model 7 for a while now and I love using it. Ive read the back a few times and ive noticed the meter is capable of reading capacity. It does give instructions but im confused. Is it as simple as putting a capacitor in series with the mains and hooking it in to the normal terminals? If so, is there a way of getting it to measure over 20uf of capacity?
Any information is much apreciated on the meter as I would love to use it more.
Regards,
Josh.
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Old 22-10-17, 06:56 PM   #2
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I acquired a new never used Avo in its box a couple of years ago, I will dig out tomorrow and see what I can find.

Martin P
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Old 22-10-17, 07:15 PM   #3
wolseley phill
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Nice things, Iíve got a model 46a and a 7. Is the battery still good in your meter?

Phill.
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Old 22-10-17, 07:23 PM   #4
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I bought new battery's for my meter.

Martin P
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Old 22-10-17, 07:34 PM   #5
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Where from if you donít mind my asking? Both of mine need them.

Phill.
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Old 22-10-17, 07:42 PM   #6
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To be honest cant remember but will look tomorrow at batteries spec no's
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Old 22-10-17, 07:48 PM   #7
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The special battery for the high ohms ranges was unavailable for a while, but they are available again from trade suppliers and sellers on ebay.

https://www.ebay.co.uk/sch/i.html?_f...ttery&_sacat=0

Peter
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Old 22-10-17, 08:58 PM   #8
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Thanks Peter

Phill.
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Old 22-10-17, 09:56 PM   #9
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my meter is designed for 2 4.5 volt cells in series for 9 volt so I replaced them with a standard 9v battery conecter which works wells and I use a standard d type cell with wires soldered on for the low voltage. ive had them batteries in it since I got it and havnt had to change them. As for the model 8 batteries (15v) I heard that stacking penny batteries will work. Unfortunatly my meter didnt come with a case but by the looks of it, the movement is new since there is no hand written date at the bottom. Does anyone know hoe to date these model 7s?
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Old 22-10-17, 09:57 PM   #10
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I beleave it was only the model 8s and higher that required the 15v cell so u should be fine with a 9v battery instead
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