Xantrex C12 Charge/ Load / Lighting Controller Owner’s Manual
975-0130-01-01
7
Testpoints for Voltage Settings
If greater accuracy is desired, or if the knobs have been removed,
testpoints are provided for measurement of each setting. A digital
voltmeter needs to be connected from the BAT- terminal on the circuit
board and the small testpoint located to the left of each adjustment pot
at the 9 o’clock position. The testpoint provides a reading from 0 to 2
volts—this value must be added to the lower value of the adjustment
range (HVD=13.0, HVR=12.5, LVR=12.0, LVD=10.5).
For example, to set the BULK (HVD) voltage to 14.4 volts, adjust the
pot until the testpoint reads 1.4 volts (13.0 V + 1.4 V = 14.4 V).
C12 circuit board shown at actual size
Testpoint for NITE LITE TIME
A testpoint is also provided to assist with the precise adjustment of the
NITE LITE TIME control. Measurement of the testpoint with a digital
voltmeter provides a voltage reading that can be used to validate the
control knob’s setting by comparing with the ranges shown below.
NITE LITE TIME Adjustment Using the Testpoint
Testpoint Reading
Mode or Time Period of Light Operation
0.50V to 1.40V
Manual reset of loads required after LVD
1.45V to 2.65V
Automatic reset of loads after LVD
2.70V to 4.90V
+0.04V = 10 min.
NITE LITE mode with adjustable time period
Adjustable in 10 min. periods up to 9.5 hours
4.92V to 5.00V
D-D mode (Dusk to Dawn / 20 hours max.)
Measurement needs to be from testpoint to BAT- terminal on the C12
Typical Installation
Basic installation of a small photovoltaic system with the C12 is shown
below. The fuses are needed to protect against short circuits of the
battery and the wiring to the C12. Disconnects may be required and
are not shown. The PV array frame, C12 chassis and DC loads should
be grounded. Check your local electrical code requirements.
PV -
PV +
LOAD -
LOAD +
BAT -
BAT +
PV ARRAY UP TO 15 AMPS
(SHORT CIRCUIT RATING)
XANTREX
C12
DEEP CYCLE
12V BATTERY
FUSE
FUSE
12VDC - 120VAC
INVERTER
12VDC LOAD
DISTRIBUTION
DC LOADS
LIGHTS
DC LOADS
RADIO/TV
POS NEG
POS
NEG
POS
NEG
POS
NEG
POS
NEG
Limited Warranty
What does this warranty cover?
This Limited Warranty is provided by Xantrex Technology, Inc.
("Xantrex") and covers defects in workmanship and materials in your
Xantrex C12. This warranty period lasts for two (2) years from the date
of purchase at the point of sale to you, the original end user customer.
You require proof of purchase to make warranty claims.
What will Xantrex do?
Xantrex will, at its option, repair or replace the defective product free of
charge, provided that you notify Xantrex of the product defect within
the Warranty Period, and provided that Xantrex through inspection
establishes the existence of such a defect and that it is covered by this
Limited Warranty.
Xantrex will, at its option, use new and/or reconditioned parts in
performing warranty repair and building replacement products. Xantrex
reserves the right to use parts or products of original or improved
design in the repair or replacement. If Xantrex repairs or replaces a
product, its warranty continues for the remaining portion of the original
Warranty Period or 90 days from the date of the return shipment to the
customer, whichever is greater. All replaced products and all parts
removed from repaired products become the property of Xantrex.
Xantrex covers both parts and labor necessary to repair the product,
and return shipment to the customer via a Xantrex-selected non-
expedited surface freight within the contiguous United States and
Canada. Alaska and Hawaii are excluded. Contact Xantrex Customer
Service for details on freight policy for return shipments outside of the
contiguous United States and Canada.
TESTPOINTS
NITE LITE TIME
TESTPOINT
Connect a DC to AC inverter
directly to the battery (instead
of to the C12 load terminals)
if it is rated over 150 watts or
if it has its own low voltage
disconnect (LVD) protection
circuitry built in.
