TLC Scanner 4
Instruction Manual, June 2018
Page 13
5
Maintenance
Dust and powder (e.g. from TLC plates) that has accumulated in
the measuring compartment has to be removed with a vacuum
cleaner regurarly.
Maintenance should be performed only by authorized technicians
who are familiar with the Scanner’s technical and functional char-
acteristics. Experience has shown that a Scanner 4 in daily use re-
quires maintenance about once a year. If the instrument is used less
frequently, maintenance should be carried out every two years.
Before opening or replacing parts on the instrument, make sure the
instrument is disconected from the mains.
5.1
Replacing the lamps
Exchange lamps only when they have cooled down properly.
•
Switch OFF the Scanner 4 and disconnect the power cord. Let
the lamps cool down
•
Remove the screws (1) and (2) of the Top-cover (3)
•
Lift up the Top-cover and place it on the backside as shown in
Fig.7 make sure the panel ribbon cable does not get discon-
nected
Fig. 7: Remove the Top – cover
•
Run the function NEW XX LAMP of the USER DIALOG to adjust
the lamp (see following pages)
Make sure not to touch the glass of the lamps with your bare
fingers.
5.2
Mercury lamp exchange
The mercury vapour lamp (cat. no. 027.6440) - Fig.8 (1), has a life
time of about 500 hours. Towards the end of the life time the lamp
(2)
(1)
(3)
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