5.3.9ChangingtheInternalBattery
Note:
ThisprocedurerequiresknowledgeofproperESDprotection;i.e.anearthedwristbandmustbeused!
Whenthealarm”InternalBattery”isactivatedandthebatteryLEDlightsupred,thebatteryforbackupof
programmemoryandreal-timeclockhasbecometooweak.Thebatteryisreplacedasdescribedbelow.
Abackupcapacitorsavesthememoryandkeepstheclockrunningforatleast10minutesafterthepower
supplyisremoved.Therefore,ifthebatteryreplacementtakeslessthan10minutes,therewillbenoneed
toreloadtheprogram,andtheclockwillcontinuetorunnormally.
ThereplacementbatterymustbeofthetypeCR2032.
1
Removethecoverbypressingdownthelocking
torquesattheedgeofthecoverusingasmall
screwdriver,andatthesametimepullingthe
edgesoutwards.
2
Gripthebatteryrmlywithyourngersandliftit
upwardsuntilitrisesfromitsholder.
Pressthenewbatteryrmlydownintoplace.Note
thattopreservecorrectpolarity,thebatterycan
onlybeinsertedthe“rightwayround”.
TopvexSR09,11,TR09-15OperationandMaintenanceInstructions
207880
28
SystemairAB
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