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8
Siemens Building Technologies
Cerberus Division
3.2
Power supply
The SLT-11/SLT-22 are suitable for alkaline batteries, rechargeable batteries or mains
operation. When operating on batteries, the device automatically switches off if it has
not been operated for approximately 5 minutes.
If charge capacity falls below approx. 10% the LED Low Bat. lights up.
Leakage and low discharge protection
If the device is not used for a long period, remove the battery cassette from the device.
3.2.1
Recharging batteries / mains operation
Explosion hazard!
Alkaline batteries can explode if an attempt is made to recharge them.
Make sure that the Batt. switch is set correctly before connecting the power unit.
Connecting the power unit
Only use the SLT11/SLT22 power unit supplied.
Statuses and display
Status
Requirement
Charge
Device switched off
battery
Mains op-
Device switched on
eration
Batt. switch set to "
Device switched on
No battery box fitted or Batt. switch set to
"Alkaline
"
Result
Charge the fitted batteries for 14 hours. The
display shows CHARGING. After this the
device switches to trickle-charging mode.
(Display shows: STANDBY)
You can carry out measurements and re-
Recharg."
charge the built-in batteries at the same time
Mains operation without charger operation
e3180a.doc
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