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5.1.4.8. Changing the lamp
The analyzer is fitted with a 12 V 20 W halogen lamp with an estimated average lifetime of 1,000 hours. It is recommended
that you change the lamp every year even though its lifetime has not run out. When the lamp needs to be changed,
access the Change lamp utility of the user program and follow the steps indicated by the program itself. To replace the
lamp, proceed as follows:
a) Remove the rotor cover.
b) Remove the two screws that hold down the cover of the optics and remove the cover.
c) Loosen the Allen screw that holds the fastening tab of the lamp holder.
d) Push the tab back.
e) Remove the lamp holder, loosen the Allen screw and take out the lamp.
f) Insert the new lamp, pushing the terminals to the back. Tighten the Allen screw until the lamp is securely in place. Do
not touch the lamp bulb with your fingers. To handle the lamp, use the wrapping, cutting it at the terminal end and
squeezing it until they come out.
g) Put the lamp holder back in place. Put the tab in position and fasten the Allen screw.
h) Place the optics cover back in position and tighten the screws that hold it in place. Put the rotor cover back.
i) The lamp does not require any adjustment, but it can be placed in the analyzer in two possible positions by turning it
180º around its longitudinal axis. The program itself requires the user to place the lamp in the two possible positions
and check in which of the two maximum light intensity is obtained in the optical system.
j) Recalculate and save the reference integration time in the photometry test.
5.1.4.9. Changing an optical filter
a) Access the Filter Wheel Configuration screen of the user or service program. Indicate which filter is to be changed
(position 1-9) and click on the Change filter button.
b) Remove the rotor cover.
c) Remove the two screws that hold down the cover of the optics and remove the cover.
d) Remove the filter wheel cover by simply pulling on it.
e) Remove the top filter using a pair of fine pliers.
f) Position the new filter by pressing down until it is correctly in place.
g) Do not leave the position free without putting a filter holder in place. If no filter is required in this position, put a covered
filter holder in place.
h) Place the filter wheel cover and the optics cover back in position and tighten the screws that hold it in place. Put the
rotor cover back.
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