TFC Group Trealux 710 - Manual (Page 6)

2. Putting into operation/operation 6
GB
b) Lamp ON duration, displayed value x 100
Entry: Press the keys + and – simultaneously 2x
Example:
0
5
= 50 operating hours
1 = 100 operating hours
1
5
= 150 operating hours
Entry: Key – and +
The number of operating hours indicates whether and when it seems
appropriate to replace the lamp.
c) Lighting ON
If one of the keys in the stairwell/motion detector or the manual switch on the
unit has been pressed, the symbol in the display should be visible.
If the lighting in the stairwell still OFF, there may be an installation fault or
a problem with the unit, or all lamps are defective.
– +