Getting Started
Dräger PSS
®
Merlin
®
11
1 Battery 1
2 Battery 2
3 Gasket
4 Foam insert
4.2 Charging the Batteries
The Entry Control Board is supplied without the batteries charged or fitted. The batteries must be charged before initial use. A
screw-lock connection plug is provided in the recess in the rear panel of the board to charge the batteries when they are
assembled in the board. The batteries can also be charged individually.
Refer to the label attached to the Universal Power Supply (AC) to check that the electrical main supply voltage corresponds to
the specified voltage requirement indicated on the label.
NOTICE
The temperature of the battery is measured by an internal thermistor. To protect the battery, the charging process will stop
if the temperature is below 0 °C or above +45 °C.
Batteries can remain connected to the charger without damage when the charging procedure is complete.
WARNING
Charging units are not approved to the same intrinsic safety standard as is applied to the wearer electronic monitoring
system. Do not attempt to charge batteries underground or in an area designated as, or subject to, an explosion hazard.
Battery Compartment
1
2
3
4
1492
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