10
Service hotline: 1.800.742.2326
1.303.678.7500
SENS EnerGenius NRG Technical Manual
Jumper JP1.
Configure battery and
output voltage settings.
G. If the optional remote temperature sensor is used:
Remove the internal sensor at TB4, if it is present.
Locate the remote sensor where it will accurately detect the battery temperature.
Connect the remote sensor leads to TB4. The sensor is not polarized, so it does not matter which lead
connects to terminal #1.
Route sensor wiring through the plastic bushing below TB5, keeping the conductors at least ¼ inch
(6 mm) away from DC wiring, AC wiring, and the circuit board.
H. Verify that all connections are secure and in the proper locations. Tighten all unused screws on the terminal
blocks to secure them against vibration.
I. Ensure all wires are routed so the cover will not pinch them.
11. INTERNAL ADJUSTMENTS
WARNING:
MAKE SURE THE AC POWER TO THE CHARGER IS SHUT
OFF WHILE MAKING THE FOLLOWING ADJUSTMENTS.
AC line voltage switch
110-120V: Use 115V position
208-240V: Use 230V position
Battery range jumper
(12V or 24V battery)
Automatic boost jumper
Use NORM setting for
fast charge. Use Off
setting for float charge
Float voltage jumper
Set according to
battery supplier’s
specifications
“Jump start” battery
initialization mode
A. Set the AC voltage select switch (SW100) according to the line voltage. Use the 115V position for nominal mains
voltages between 110V and 120V. Use the 230V position for nominal mains voltages between 208V and 240V.
B. Set the battery range jumper (JP1A) according to nominal battery voltage. Use the 12V position for 12V batteries.
Use the 24V position for 24V batteries.
C. Set the boost mode jumper (JP1B) according to whether the battery should have automatic boost charging. If the
battery manufacturer recommends boost charging (equalization) use the NORMAL position. If not, use the OFF
position.
D. Set the float voltage select jumper (JP1C) according to the battery manufacturer’s recommended 25ºC
float voltage. The settings are:
14.30/28.60 for 10 or 20 cell Nickel Cadmium at 1.43V/cell
13.62/27.24 for 6 or 12 cell (VRLA) lead-acid at 2.27V/cell, and for 19 cell Nickel Cadmium at 1.43V/cell
13.50/27.00 for 6 or 12 cell (VRLA or high capacity) lead-acid at 2.25V/cell, and for 19 cell Nickel Cadmium at
1.42V/cell
Meter Display Jumper
JP800. Choose VOLTS,
AMPS, or AUTO for meter
display view.
(20 pages)
(12 pages)
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