EN
Maintenance
Eaton's Security Business recommends that you regularly check the calibration of the
738r, see Commissioning.
Change the battery every 24 months, or when the control unit indicates low detector bat-
tery.
The 738r indicates low battery by sending a message to the receiver. In addition, the Activ-
ity LED will not operate if the battery is low (even if jumper D is removed).
When the battery is finished, replace it with a fresh 3V CR2 Li/MnO2 battery. Before insert-
ing the new battery, briefly short together the terminals of the battery holder with a screw
driver or short length of wire. This ensures that the processor restarts correctly when you
insert the fresh battery.
Battery Care
DO NOT: Short circuit or attempt to recharge..
Dispose of used batteries in accordance with the current local regulations. DO NOT incin-
erate, crush, or puncture.
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