Re: Buying second hand!


"Harry Bloomfield" <harry.m1bytNOSPAM@xxxxxxxxxxxxx> wrote in message
news:mn.fbf97d6517b27bb7.8412@xxxxxxxxxxxxxxxx
Mary Fisher formulated on Wednesday :
"Harry Bloomfield" <harry.m1bytNOSPAM@xxxxxxxxxxxxx> wrote in message
news:mn.e3c97d6519d37e9b.8412@xxxxxxxxxxxxxxxx

<snip interesting and useful to some warning>

... Take along a damp test meter - Aldi had some digital ones recently
for £10 - they just need the probes modifying to make them a little
finer at the tip.

How do you do that? Won't such modifying affect the reading in some way?

Mary

They simply measure the resistance or conductivity of the material they
are probing. A smaller contact area due to smaller diameter probes will of
course affect the reading, but it is only a matter of seeing if any change
in the reading is obtained on pushing the probes in - which would indicate
conduction and thus damp.

Yes but do you file it down or what?

Mary

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk




.

Relevant Pages

  • Re: Buying second hand!
    ... £10 - they just need the probes modifying to make them a little finer at the tip. ... They simply measure the resistance or conductivity of the material they are probing. ... A smaller contact area due to smaller diameter probes will of course affect the reading, but it is only a matter of seeing if any change in the reading is obtained on pushing the probes in - which would indicate conduction and thus damp. ...
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  • Re: Buying second hand!
    ... Take along a damp test meter - Aldi had some digital ones ... Won't such modifying affect the reading in some ... A smaller contact area due to smaller diameter probes will ... Thanks, Harry. ...
    (uk.rec.caravanning)
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