Meter readings [RE-wrenches]

Dana Orzel dana at solarwork.com
Fri Mar 14 10:56:50 PST 2003


After Dankoff consulting with the manufacturers in this case of Meter
discrepancies.
I have found out the following:
1 - That there is a pot on the Trimeteric TM2020 that allows you to correct
the voltage.
One is to meter off of the + and S1 at the meter back circuit board and
adjust a trim pot.
2 - The Outback Mate has a procedure for voltage adjustment in the
programming. I was informed second hand, so I will be calling Outback when
back at the jobsite and learn how to do the adjustment.
3 -The RVPP SB50 meter was the closest and is not in the kitchen. From Rick
@ RVPP
Yes, the meters can be calibrated in the field. On the meter board there are
two pots, one labeled "I Bat" and one labeled "V Bat". To adjust voltage
adjust the V Bat pot to the value read by another meter on the Solar Boost
battery terminals. Current can be adjusted as well with the I Bat pot, BUT
adjusting current will affect the voltage reading so voltage must be
recalibrated if current is recalibrated.

Our accuracy spec is +/-0.3% of 70V full-scale which is +/-0.2V. Please let
me know if you find the Solar Boost to be off. We use NIST traceable
calibrated meters. If one is off I would also like to know the "test stamp"
number on the pots as this identifies the technician who calibrated it.

Hope this helps All.
Dana

Responsible Technologies for Responsible People.
Great Solar Works, Inc.
dana at solarwork.com - 970.626.5253
Ridgway, CO, USA

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