OPERATION AND MAINTENANCE MANUAL
THREE PHASE MCRII SERIES BATTERY CHARGER
Rev: 1.6 03/08/2010 Doc: MAN-3P_MCRII_REV1.6.Doc Page 26 of 29
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7.4 Checking Boost Voltage
With the charger set to boost, connect a precision voltmeter across the charger output
terminals and take a reading. If adjustment is required refer to the Adjustments section.
The following tests are optional and do not constitute the normal commissioning
procedure.
7.5 Checking Battery Current Limits
This test is to be carried out on one battery at a time.
Discharge Battery 1 for a while by switching the charger off and providing some DC load for
a period of approx. 10 min. This time may vary depending on the size of the DC load
compared to the battery capacity. When the battery has discharged sufficiently remove the
load and switch charger on. The output current from the charger will now rise to the battery
current limit level; check the current limit level. If adjustment is required refer to the
Adjustments section.
Repeat for Battery 2.
Reconnect the load.
7.6 Checking Charger Current Limit
Disconnect the batteries. Connect a load to draw more than the rated current of the charger at
the float level. Switch charger on. The output current from the rectifier will now rise to the
current limit level. Check the current limit setting on the ammeter on the front panel.
Reconnect the battery.
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