Datron PRC-BC4 - Page 34

5: Maintenance
PRC-BC4-MS 5-3
DC Output Check 1. Connect the DC voltmeter across the capacitor.
2. Connect the 82 ohm resistor across the capacitor.
3. Measure the DC voltage. It should be 13.3 ±0.2 VDC.
Reset Circuit
Check
1. Press and hold the RESET button and observe the capacitor
discharging.
2. Release the
RESET button when the capacitor voltage is between
6 and 10 VDC. The CHARGING LED should light up.
Overcharge
Voltage Check
1. Measure the DC voltage across the 82 ohm resistor. It should be
14.0 ±0.2 VDC.
Undervoltage
Protection Circuit
Check
1. Connect the 2.2 ohm resistor across the capacitor.
2. Observe that the
FAULT LED lights up after a few seconds.
Repeat the previous checks for the other charging stations.
Figure 5-2 DC Current Check Setup
BATT. 1
CHARGING
READY
FAULT
RESET
BATT. 2
CHARGING
READY
FAULT
RESET
BATT. 3
CHARGING
READY
FAULT
RESET
INTERNAL
CHARGING
READY
FAULT
RESET
POWER
ON
OFF
DC FUSE
AC FUSE
DC INPUT
AC INPUT
A
B
(+)
(–)
POS
NEG
6.8
2.2
AB
C
CHARGING
CABLE
991610