-wrenches] Voltage discrepancy
From: boB Gudgel b...@midnitesolar.com
Date: Thu, August 19, 2010 8:09 pm
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Jeff Oldham wrote:
I have seen this on my last 3 MX60 controllers and it is very
frustrating and looks to be a design flaw. I can calibrate
Bob you know the architecture of the MX60 is it a design problem or is it a
component problem, I have not noticed this problem in older MX60s but I was not
looking for it either. I have been able to adjust the meter and I typically
would not check it again. I use my meter and adjust the MX60
Wire gauge isn't the only consideration. Check all crimps and connections in
the DC path. A bad one can cause more drop than the wire.
Dan
--- On Fri, 8/20/10, Jeff Oldham starpowe...@juno.com wrote:
From: Jeff Oldham starpowe...@juno.com
Subject: Re: [RE-wrenches] Voltage discrepancy
Correction: it is number 6 to the charge control, and 3/0 or 4/0 to
the batteries.
At 09:40 AM 8/20/2010, you wrote:
boB,
It looks like 3/0 or 4/0. It is a short run.
At 08:09 PM 8/19/2010, you wrote:
Jeff Oldham wrote:
I have seen this on my last 3 MX60 controllers and it is very
I have seen this on my last 3 MX60 controllers and it is very frustrating and
looks to be a design flaw. I can calibrate the meters to be accurate at either
the Absorb point OR the Float point but NOT both!! Not only that but the meter
calibrations tend to drift a bit in just a matter of days,
Jeff Oldham wrote:
I have seen this on my last 3 MX60 controllers and it is very
frustrating and looks to be a design flaw. I can calibrate the meters
to be accurate at either the Absorb point OR the Float point but NOT
both!! Not only that but the meter calibrations tend to drift a bit in
Thanks Jeff, That could be the explanation. Outback has metering
issues with the Mate too. When I talked to a tech support about he
fact that the Mate on my system seemed woefully inaccurate, she
chuckled and affirmed that the were pretty approximate.
-Drake
At 07:12 PM 8/19/2010, you
Drake,
--- You wrote:
I called her back just now, and the voltage readings on the Mate, MX
and Trimetric all match. Humm.
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
Hello Wrenches,
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
Drake,
I'd start by having her disconnect the temp sensor. If it has
failed, it can cause false voltage compensation.
However, if the MX60 is reading higher than actual, as your post
suggests, I would more expect it to regulate sooner, thus leading to
less
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