Changing The Battery; Devices For Ex Zone 1 (Ec 911 And Ec 912) - RMG EC 900 Operating Instructions Manual

MAINTENANCE
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Changing the battery

Devices for Ex zone 1 (EC 911 and EC 912)

The battery can be changed in Ex zone 1 or 2 without any problem. A current-limiting resistor locat-
ed on the battery ensures that the electrical limits for intrinsically safe circuits are not exceeded.
Use only batteries from RMG with connecting cables and connectors. If you use other
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batteries, explosion protection will not be guaranteed after you have changed the bat-
tery!
The battery is to be connected to the upper (X_Batt1) or lower (X_Batt2) pair of pins to the right of
the battery holder using the connecting cable with connector. The contacts of the battery holder do
not have any function.
The battery can be changed without interrupting volume correction. To do this, plug the connector
of the new battery on the unoccupied pair of pins and actuate the battery changeover switch. Now
the new battery is working and you can remove the old battery and insert the new one into the bat-
tery holder.
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Changeover switch
Battery