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I called her back just now, and the voltage readings on the Mate, MX and
Trimetric all match. Humm. <br><br>
The batteries are 4, 4 1/2 year old, U.S. Battery L-16s wired in 24 volt
configuration. It seems that I remember postings of Wrenches having
problems with these batteries. There is about 1 KW STC of PV on the
roof. <br><br>
<br><br>
At 12:12 PM 8/14/2010, you wrote:<br>
<blockquote type=cite class=cite cite="">Any way she can get a real
voltmeter? the MX60 has voltage calibration, so does the FX
it sounds like something is over charging, perhaps the generator
run? additonal details on battery bank size, array size and
typical load. <br>
<br>
Darryl<br><br>
--- On <b>Sat, 8/14/10, Drake Chamberlin
<i><drake.chamberlin@redwoodalliance.org></i></b> wrote:<br>
<dl><br>
<dd>From: Drake Chamberlin
<drake.chamberlin@redwoodalliance.org><br>
<dd>Subject: [RE-wrenches] Voltage discrepancy<br>
<dd>To: "RE-wrenches"
<re-wrenches@lists.re-wrenches.org><br>
<dd>Date: Saturday, August 14, 2010, 8:58 AM<br><br>
<dd>Hello Wrenches, <br><br>
<dd>I just got off the phone with an off grid system owner who has a
voltage discrepancy showing between the reading on her MX-60 and both her
Mate and Trimetric meter. The MX-60 shows 28.8 V and the Trimetric
and the Mate both show around 25 volts. The batteries are using a
tremendous amount of water.<br><br>
<dd>Has anyone seen this scenario before? Do you think the MX-60 is
bad? <br><br>
<dd>Thanks,<br><br>
<dd><font color="#0000FF">Drake Chamberlin<br>
<dd>Athens Electric<br>
<dd>OH License 44810<br>
<dd>CO License 3773<br>
<dd>NABCEP </font><font size=1 color="#0000FF">TM
</font><font color="#0000FF">Certified PV Installer <br>
<dd>Office - 740-448-7328<br>
<dd>Mobile - 740-856-9648 <br>
</font><br>
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<x-sigsep><p></x-sigsep>
<font color="#0000FF">Drake Chamberlin<br>
Athens Electric<br>
OH License 44810<br>
CO License 3773<br>
NABCEP </font><font size=1 color="#0000FF">TM
</font><font color="#0000FF">Certified PV Installer <br>
Office - 740-448-7328<br>
Mobile - 740-856-9648 </font></body>
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