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Re: What Multimeter? General HA Use



I got mine yesterday and it works fine.
One thing I did notice is that you have to push the leads firmly in=20
to the meter until they click.  It is only the last couple of=20
millimetres that make the contact in to the meter.  Make sure the=20
leads are pushed right down in to the meter.

The rubber you refer to, is it the conductive sort?
Conductive rubber can be hard to get readings from, particularly as=20
it gets old.

I tried the meter reading voltage from a battery and it was fine.=20=20
Also tried holding the probes together on 200 Ohm resistance and=20
again fine.  Only a brief test but fine so far.
Andy

--- In ukha_d@xxxxxxx, Ben McCormack <yahoogroup@...> wrote:
>
> No it is not that
>=20
> Stick both probes into the rubber backup battery covers
> 0v reading
> Rotate probes in multimeter
> 13.7v reading
> Rotate Probes again
> 0v.
>=20
> Conclusion : Probe contact into main unit is not great
>=20
> Ben
>=20
> On 29 Jul 2008, at 10:40, Andy Whitfield wrote:
>=20
> > It may be due to tarnishing/dirt on the cables or contacts you=20
are
> > trying to read.
> > What are you measuring? (cables? contacts? etc)
> > I ordered one as well and I'm going to try mine later today.
> > I'll let everyone know how I get on.
> > Andy
> >
> > --- In ukha_d@xxxxxxx, Ben McCormack <yahoogroup@> wrote:
> > >
> > > Just thought I would give you a quick update.
> > >
> > > I purchased the cheap Multimeter in the end (=A35 from
Maplin)=20
and
> > it
> > > does not seem to work!!!
> > >
> > > The contact on the probes is not great. If you rotate the=20
probes
> > the
> > > reading changes from what is expected down to zero!
> > >
> > > I think I will be purchasing a better one.
> > >
> > > Ben
> > >
> > >
> > > On 18 Jul 2008, at 10:16, Ben McCormack wrote:
> > >
> > > > Cheers - Looks like I will go with the cheap one then!
> > > >
> > > > Ben
> > > >
> > > > On 18 Jul 2008, at 09:54, Andy Whitfield wrote:
> > > >
> > > > > The Maplin one is made by Mastech. I have a couple
of=20
Mastech
> > > > > multimeters (different model) and they are fine.
> > > > > Andy
> > > > > --- In ukha_d@xxxxxxx, Ben McCormack
<yahoogroup@>
> > wrote:
> > > > > >
> > > > > > All
> > > > > >
> > > > > > While installing all of this HA equip I have
realised=20
that I
> > > > > don't
> > > > > > have any way of testing any of it!! So
diagnosing Comfort
> > issues
> > > > > can
> > > > > > be difficult.
> > > > > >
> > > > > > So I need to 'invest' in a multimeter. I have
had a look
> > around
> > > > > and I
> > > > > > don't think I will ever be testing mains
voltage so it is
> > most
> > > > > likely
> > > > > > to be in the 0 - 24v range + resistance etc.
I guess
> > Autoranging
> > > > > is
> > > > > > better, this gives me less chance for error
> > > > > >
> > > > > > Would something like this
> > (http://www.maplin.co.uk/Module.aspx?
> > > > >
ModuleNo=3D44679&criteria=3Dmultimeter&doy=3D17m7
> > > > > > ) for =A35 do the job or is there a better
recommendation?
> > > > > >
> > > > > > Ben


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