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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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12th Nov 2014, 5:54 pm
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#1 |
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Heptode
Join Date: Nov 2004
Location: Ripon, N.Yorkshire, UK.
Posts: 782
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Meter classification
Does anyone know what "Class 2.5" means in respect of analogue panel meters currently on sale on ebay? Is it +/-2.5% accuracy?
Jim |
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12th Nov 2014, 6:20 pm
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#2 |
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Guest
Posts: n/a
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Re: Meter classification
A quick Google agrees with you, anything second hand though has two classes, 1-working and 0-not working.
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12th Nov 2014, 10:13 pm
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#3 |
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Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Meter classification
I beg to differ
 The commonest second hand class is that well known third logic state "maybe". 1mA meters with FSD of 1.2mA gives the general idea.
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12th Nov 2014, 11:49 pm
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#4 |
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Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,345
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Re: Meter classification
I once went to an auction with a work colleague when a local Marconi site closed. He was minded to bid for an impressive-looking meter until I observed that the letters "BER" on a label tied to it almost certainly meant "Beyond Economic Repair".
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13th Nov 2014, 12:05 am
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#5 |
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Heptode
Join Date: Nov 2004
Location: Ripon, N.Yorkshire, UK.
Posts: 782
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Re: Meter classification
And did you have to point out that u/s didn't mean it was made in the USA?
Thanks guys. |
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