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Battery Controller / Hourmeter / Lift Interrupt
PS
S5.3
5230
F-code
Section
C-code
Version no
T-code
001
© BT Products
155
Service Manual
1997-04-15
above lockout and should read zero ohms with an ohmmeter
across pins 3 and 4. If not at lockout test the lift switch and
contactor.
4.1.6. Early Lockout
It is very important that the instrument is installed so that its
pins are reading the true battery voltage. Any voltage drops
caused by long lines, switches, fuses, or poor connections
will be seen by the instrument as a deeper discharged
battery.
1. To check for voltage drops use a voltmeter with its
positive lead on the battery’s positive terminal and the
meter’s negative lead on pin 7 or 8 (whichever pin B+
is connected to). Load the battery and record this
measurement.
2. Repeat this procedure with the voltmeter’s positive
lead on pin 5 and its negative lead on the battery’s
negative terminal, and record the voltage measured.
3. Add the two voltage readings. This total should be less
than 1 percent of the nominal battery voltage. Voltage
higher than this will cause the instrument to calculate
battery state-of-charge from incorrect readings.
4.1.7. LEDs Do Not Light
The battery discharge indicator LEDs are illuminated by the
keyswitch, pin 2.
Verify that battery voltage is present across pin 2 and pin 5. If
voltage is present and the LEDs do not light, the instrument is
defective.
4.2. Hourmeter
4.2.1. No Display
The LCD of the hourmeter will illuminate when power is
applied at pin 7 or 8 and pin 5. If battery voltage is measured
across these pins and the LCD does not turn on, the
instrument is defective.
4.2.2. Hourmeter Glass Icon Does Not Flash
If the icon does not flash, the hourmeter is not accumulating
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