PowerGuard
PRO
User & Installation Guide Rev A
Page 15
After Installation - Testing
Once installed, PowerGuard
PRO
should be fully tested before releasing the vehicle/boat into service.
Complete a full visual inspection on all wiring, ensure that wires cannot be chaffed through, are
properly supported and terminals are protected from accidental short circuits.
1.
Turn off the engine and all charge sources
2.
Cycle the Battery Isolator switches, you should hear the contactors connecting and
disconnecting. Verify, using your multimeter that the contactor is actually disconnecting.
3.
Turn the ignition on but do not start the engine. Cycle the B1 (engine) battery isolator switch
–
nothing should happen as the PowerGuard
PRO
B1 channel should be inhibited when the
ignition is on.
Warning!
If the B1 contactor continues to cycle when the battery isolator switch is pressed
and the ignition is switched on, you MUST NOT release the vehicle/boat into service. Severe
damage and potentially hazardous situations may occur if B1 is disconnected when the
engine is running.
4.
Turn the ignition off. Note the voltage of B1. Apply loads to B1. When the voltage drops
below the pre-set disconnect voltage for a period exceeding the pre-set Time Delay, you
should hear the B1 Contactor disconnect. Verify that the contactor has actually disconnected
using your multimeter. Check that the LED within the reset switch is illuminated.
5.
Press the reset button. B1 should be reconnected.
6.
Do the same for Battery 2 (if using PowerGuard
PRO
for two batteries).
7.
Make any further adjustments to Disconnect Voltages and Time Delay if required.
8.
Install the rubber blanking plugs provided into the holes in the CPU enclosure.
9.
Carry out a double-check of the wiring integrity, the quality of connections and cable
terminations.
If you are unsure about any aspect please consult a suitably qualified engineer, your
Dealer or Merlin Equipment Ltd before commissioning the unit.
