Maintenance and cleaning
photoLab
®
7100 VIS
32
ba77095e03
10/2017
5
Maintenance and cleaning
5.1
Replacing the lamp
Service life of the
tungsten halogen
lamp
The tungsten halogen lamp is a wear part with a certain average service life
(see chapter 7 T
ECHNICAL
DATA
). It has to be replaced if defective. The pho-
tometer has a service hour counter for the lamp module.
Note
The replacement lamp is readily assembled as a lamp module and optically
adjusted in the factory. Therefore, treat it with utmost care. Fingerprints on
the glass will shorten the service life of the lamp. Do not touch the bulb of the
new lamp module with your bare fingers. If you have touched the bulb inad-
vertently, carefully clean it with a clean cloth soaked in alcohol.
Replacing the lamp
module
The lamp module is behind a cover (aluminium sheet) on the rear panel of
the photometer. Proceed as follows:
CAUTION
The lamp becomes very hot during operation. Do not touch the hot lamp
because it can cause burns! The lamp should cool down for approx.
10 minutes before it is exchanged.
1
Switch off the photometer and dis-
connect it from the power supply.
2
Unscrew the two screws (1) and
remove the lamp cover (2).
1
2
