Petaluma, CA 94953
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From: Howie Michaelson
To: RE-wrenches
Sent: Tue, December 14, 2010 9:37:28 AM
Subject: Re: [RE-wrenches] Trace TM500
Hi Phil,
I can see how that might cause problems so I will try
Hi Phil,
I can see how that might cause problems so I will try that fix. While I'm
not sure how higher resistance would cause the lack of resetting the
amphours back down to zero from the "positive" territory it can go into
during the charging cycles, I have certainly seen lots of funny behavior
The biggest difference between the two meters is the TM500 uses a RJ11 plug
and telephone style cable between a shunt board and the meter. Since
amphour meters work by measuring voltage drop across the shunt my guess
would be that the meter has lost connectivity to the shunt, probably through
thos
Howie,
As I understand it, the TM500 is in essence a "TM2020 Lite",
developed under license by Bogart Engineering for Trace. Schneider
will most likely not be able to provide support, but Ralph Heisey
probably can. You might call him with your questions. He's very
ac
Hi All,
In the past 2 months, I've had 2 separate clients with 48 volt SW systems
have their TM500 stop resetting amphours - even after there is no current
flowing into the bank for hours. The meter never goes below "0" amp hours
and always shows "Full" SOC. These are TM500s that have behaved pr
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