Abus RWM450 User Manual - page 57

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alarm (Fig. 5). When you do this, 

check that the unit is undamaged 

and securely fixed to its mounting 

location, and that the air inlet fins 

(Fig. 1, II) are completely free of 

foreign bodies.

To ensure the continued functional 

readiness of the alarm, the unit 

should be maintained as described in 

DIN 14676 at least once per year.  

To do this, proceed as follows:

•  Dust the unit if necessary with a 

  damp cloth; remove any contami- 

  nation with a damp cloth. Do not 

  use detergent.

OPERATING LIFE OF THE DEVICE

The maximum service life and the 

intended service life of the device is 

not more than 12 years. These 12 years 

can be divided into a typical service 

life of 10 years plus a maximum 

further 2 years service life/energy 

reserve for the product. You should 

replace the unit after this period.

GB