3.1 Fitting/Exchanging the lamp
Install the lamp with the device switched off only.
To insert the lamp (MSD 200 W, GY-9,5 or MSD 250 W, GY-9,5) open the housing by loosening the
fastening screws at the side panels and by removing the focus-screw and zoom-screw.
If changing the lamp, remove the old lamp from the socket. Insert the lamp to the socket.
Do not install a lamp with a higher wattage! A lamp like this generates temperatures the device is not
designed for.
Damages caused by non-observance are not subject to warranty. Please follow the lamp manufacturer's
notes!
Do not touch the glass-bulb bare-handed during the installation! Make sure that the lamp is installed tightly
into the lampholder system.
Adjust the optimal distance 1-1.5 mm from the lens by turning the screw "A" (see the drawings "Lamp
adjustment" below).
Replace the housing cover and tighten the screws.
Do not operate the fixture with opened housing-cover!
Lamp adjustment
The MH-660 lampholder is aligned at the factory. Due to differences between lamps, fine adjustment may
improve light performance.
Strike the lamp and focus the light on a flat surface (wall). As the optimum distance of lamp from lens was
adjusted during the installing or changing the lamp (by turning the screw "A"), it is necessary to adjust only
the second position by turning the screw "B", in order to center the hot-spot (the brightest part of the beam).
If the Hot Spot seems to be too bright, you can lower its intensity by moving the lamp closer to the reflector.
Do so by turning srew "A" until the light is evenly distributed.
If the light on the edge seems to be brighter as in the center, the lamp is too close at the reflector. In this
case, you need to move the lamp away from the reflector until the light is evenly distributed and the beam
appears bright enough.
3. Installation
DANGER!
Unplug from mains before!
CORRECT
Optimum distance
1 - 1.5 mm
26
INCORRECT
Keep optimum
distance to lens!