On 02/10/2010 14:57, RussellMc wrote:
>>> The =805 models have 1M Ohm rather than 10M Ohm on voltage. Go "BANG"
>>> in a blue flash with 500V DC on the 750V range
>> That doesn't make sense.  500V into 1Mohm is only 250mW.  If it went ban=
g
>> with a blue flash there was something else going on, probably bad insula=
tion
>> or dirt in the wrong place.  This wouldn't be the fault of 1Mohm versus
>> 10Mohm input impedence.
> I believe the point being made is that the two aspects are both
> indicative of the lower quality of such units.
>
Yes. Absolutely
> Low cost multi-meter sold here, where we have 230 VAC mains, often
> have an added instruction sheet that says that they are not suitable
> for connection to AC mains, despite usually having a top ACV range
> labelled 750 VAC or 1000 VAC on the dial.
>
> B
I suspect it not related to power or components but simply track spacing.
--=20
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