OPERATION AND MAINTENANCE MANUAL
SINGLE PHASE MCRII SERIES BATTERY CHARGER
Rev: 1.15
24/08/2018
Doc: MAN-1P_MCRII
Page 33 of 36
Australian Technology
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7.9
TESTING DC HIGH ALARM
Disconnect all loads from the charger. Increase the Float voltage (See User
Adjustable Set Point Instruction Sheet) to a setting just above the DC High level. The
DC High Alarm will be indicated on the LCD panel after the user programmable
alarm delay has expired. Also check that the DC high relay on the Relay board A4 (if
fitted) has de-energised and that its contacts (see Schematic Diagram) have
changed over, and check that the Common Alarm relay on the Interface Card has de-
energised and that buzzer is sounding. Ensure that the buzzer can be muted by
pressing the
Alarm Mute key. The mute function can be reset by pressing the Reset
key. Now adjust the Float voltage set point to 5 % below the DC High alarm set point
and ensure that the alarm can be reset.
Readjust the Float voltage to the level shown on the test report.
