Specifications

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{xe "system power supply (SPS): configuring "}{xe "remote power supply (RPS):
configuring "}{xe "card configuration: system power supply (SPS)"}{xe "card
configuration: remote power supply (RPS)"}
There are two 4mm (i.e. small) potentiometers on the 4100-9848AU SPS, situated below
the centre of the PCB. These are adjusted in the factory and typically will not need
adjusting in the field.
If it is necessary to adjust them, turning the potentiometer clockwise increases the
corresponding voltage.
R341 Battery Charger Voltage
Adjust this potentiometer to achieve a charger voltage of 27.3V  0.1V at 20C.
(Allow –36mV/C for temperatures different to 20C). Disconnect the battery while
making this adjustment, and measure the charger output at the SPS terminals. Reconnect
the battery after making the adjustment.
R342 Voltage Measurement Calibration
Adjust this potentiometer to match the measurement of charger voltage on the panel LCD
with that on a calibrated voltmeter measuring the charger output. Use the “Card
Status”option of the menu. Match the two readings to within 0.1V.
See Chapter 2 “Step 3. Configuring Cards” for details of setting jumpers and DIP
switches.
SPS Adjustments
Adjusting Voltages
Setting Jumpers and
DIP Switches