Archived posting to the Leica Users Group, 2000/08/18

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Subject: Re: [Leica] Leica M2 and meters
From: Dennis Painter <dpainter@bigfoot.com>
Date: Fri, 18 Aug 2000 07:28:42 -0700
References: <336ECDAFDF7DD311B9E30090277AEE4102C64253@nt-exchange-bby.pmc-sierra.bc.ca> <399ACB5B.35AD2AFF@rabiner.cncoffice.com> <l03130301b5c17724b80b@[216.40.160.185]> <01a801c008d2$86ee6a60$02000003@dnai.com> <001801c008e1$042bff70$6401a8c0@dakota>

Steve Caspersen wrote:
> 
> A trusted source has told me that the MR meters get out of adjustment easily
> causing them to give bad readings.  Anyone have any experience with that?
> If so, are they easily adjustable?
> 
> Steve Caspersen
> 

At this point I doubt you qualify me as a "trusted source" but, I used
to use these meters a lot and never had any problem.  I saw a 3rd one
which was erattic until the internal switch contacts were cleaned, an
easy job for a repair shop.

As far as adjustments going out though, no, it just doesn't easily
happen.

The big problem really is what cell (battery) will be used with the
demise of the mercury cells that deliver 1.35 volts.  Two options I see,
the CRIS adapter and the zinc-air types with the attendent short life of
zinc-air cells(not that short I understand but I recall others saying
less than a year)  I don't recommend the alkaline 625 cellsbecause the
output voltage varies too much from full charge to near depleted and
will cause incorrect readings. If alkaline cells are used the meter can
be adjusted to give correct readings at a specific voltage but a
significant variation from that voltage will cause incorrect readings.

Dennis

In reply to: Message from Paul Chefurka <Paul_Chefurka@pmc-sierra.com> (RE: [Leica] Leica M2)
Message from Mark Rabiner <mark@rabiner.cncoffice.com> (Re: [Leica] Leica M2)
Message from Ken Wilcox <wilcox@tir.com> ([Leica] Re: Leica M2)
Message from "Roland Smith" <roland@dnai.com> (Re: [Leica] Re: Leica M2)
Message from "Steve Caspersen" <mectau@home.com> ([Leica] Leica M2 and meters)