QS series manual v3.09 QMAXZ © 2009
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5.1 Lamp Installation
Switching the lamp off before it’s warmed up will decrease the lamp’s life time.
To reduce the risk of explosion, replace the lamp when it reaches the limit of its average life time.
Never exceed the lamp’s average life time by more than 10%. To read running hours from the control
panel, please refer to display function menu chapter 7. Replace the lamp immediately if it is deformed
or in any way defective.
1. Disconnect the fixture from power and let it cool down for at least 30 minutes.
2. Loosen the 4 fastening screws on the lamp housing cover plate.
3. Carefully pull out the cover with the lamp assembly.
4. Remove the old lamp and insert the new lamp into the socket. Make sure that the lamp is
installed tightly into the lamp socket.
5. Close the lamp housing cover and fasten the 4 screws again.
NOTE: All bulbs have a maximum lifetime, check lifetime regularly to avoid exceeding lifetime,
otherwise it may result in deformation or explosion of the bulb, what may cause damage on the
reflector or other parts of the fixture.
5.2 Lamp Adjustment
The lamp holders of all QMAXZ fixtures are aligned at the factory. Due the difference between lamps,
fine adjustment may increase the light output.
QMAXZ advises to always re-adjust the lamp position when installing a new bulb
1. Strike the lamp and project an open white beam on a flat surface (wall).
2. Use the 3 screws (see picture) to centre the brightest part of the lamp (hot-spot).
3. Turn the screws one by one clockwise and/or counter clockwise until the hotspot is in the
centre of the beam. If you cannot detect the hotspot, adjust the lamp until the output is evenly
spread over the beam and the output is the brightest.
Never run the device without lamp!
Do not touch the quartz bulb with bare fingers. Wear safety glasses and gloves
when handling lamps.
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