SI Analytics UviLine 8100, Operating Manual, Page: 229 / 236

Maintenance 229
15 Maintenance
15.1 Changing lamp
In this chapter only the change of the halogen lamp of the UviLine 8100 and 9100 spectrophotometer will be
explained. Indeed, the UviLine 9400 spectrophotometer works with xenon lamp which life time approaches the
one of the apparatus. Any time, if it prematurely stops working, then contact the services of SI ANALYTICS for a
change of this lamp.
The tungsten halogen lamp is a wear part with a certain average service life. It has to be replaced if defective.
The spectrophotometer has a service hour counter for the lamp module (see paragraph 14.6).
Remark
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 bare fingers. If you have touched the bulb inadvertently,
carefully clean it with a clean cloth soaked in alcohol.
The halogen lamp is located behind a protection cover (Aluminum sheet) at the rear part of the
spectrophotometer. To change it, proceed as follows:
.
Fig. 25 Halogen lamp protection cover
1 Switch off the spectrophotometer and disconnect it from the main power.
2
Remove the two screws (1) and remove the lamp protection cover (2).
WARNING
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
2