Owner’s Manual |
GPR-25 Regulator
4
Carmanah Technologies Corp. Copyright © 2007
Document number: GPR-25_Manual_v4.doc
Last revised: June 21, 2007
1.0 Installation Overview
1.1
Introduction
A Charge Regulator is an essential component of your photovoltaic system. The Regulator maintains the
life of the battery by protecting it from overcharging. When your battery has reached a 100% state of
charge, the Regulator prevents overcharging by limiting the current flowing into the batteries.
The GPR-25 is a 12 volt flush mounted photovoltaic charge regulator rated for a maximum current of 25
amps. The GPR-25 features an LCD digital display that shows solar array charge current and system
battery voltage. An LED bar graph shows the battery state of charge.
1.2
Specifications
Description
Value
Dimensions (H x W x D):
Nominal Voltage
12 V
107.95 x 190.5 x 19 mm
Rated Current, Continuous Array Isc
25 A
4.25 x 7.5 x 1.6 in
Array Voltage, Max Voc
26 V
Quiescent Current
20 mA
Hardware:
#8/32
Current Consumption, Charging Typ.
20 mA
Voltage Drop, Array to Battery, Typ.
0.8 V
Weight:
172 grams
Charge Termination Selectable
14.1 / 14.4
±
0.2 V
6 ounces
Charge Resumption
13.0
±
0.3 V
Operating Temperature Range
-40 to 85
°
C
Fuse:
25 Amp AGC
-40 to 185
°
F
LCD Operating Temperature
-10 to 55
°
C
Max Wire Gauge:
#8 AWG
14 to 131
°
F
Display Accuracy
2 Points
Warranty:
5 Years
One convenient display
alternates between
voltage and current
(amperage) readings
Digital display
shows real time
battery voltage and
charge current
Coloured LED Bar
Graph shows
battery state of
charge
Low power
consumption at
20 mA
All lights are
LEDs and will
never burn out.
Full solid
state
charge
control
Charging light indicates
when solar
modules are
charging the battery
Over current
protection
25 A Isc
charge
current
rating
Reverse
polarity
protection
5 year
warranty
Jumper setting for
sealed or flooded
batteries
Blocking diode
prevents reverse
current flow
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