Martin MAC 250 ENTOUR Manual de usuario descargar pdf (Pagina 22)

22 MAC 250 Wash

INSTALLING A LAMP

Danger! Intense heat. Avoid contact by persons and materials. The exterior of the fixture can get

very hot – up to 160° C (320° F). When replacing the lamp, disconnect the fixture from AC

power and allow it to cool for at least 45 minutes before proceeding. Protect eyes and

hands with safety goggles and gloves.

1. Locate the lamp access cover at the back of the fixture head and remove the two Phillips screws.

2. Pull out the lamp socket.

3. If changing the lamp, remove the old lamp from the socket.

4. Holding the new lamp by its ceramic base (do not touch the glass), align the small pins on the lamp with

the small holes in the socket and insert the lamp squarely. Make sure that the 4 small projections on the

base contact the face of the socket.

5. Clean the glass bulb with the cloth supplied with the lamp, particularly if your fingers touched the glass.

A clean, lint-free cloth wetted with alcohol may also be used.

6. Insert the lamp into the fixture with as little twist in the lamp wires as possible.

7. Align the screw holes and fasten the lamp access plate with 2 screws.

8. If installing a new lamp, reset the lamp hour and lamp strike counters as described on page 13.

9. Strike the lamp and adjust for optimum performance by turning the three 3mm Allen screws shown in

Figure 12 one at a time until the brightest part of the beam is centered.

10. A hot-spot can be adjusted out with the three Allen screws. Turn the screws an equal amount to

maintain lamp alignment.

Cleaning procedure

Use care when cleaning. The surface on dichroic filters is achieved by means of special multi-layer coatings

and even small scratches may be visible. Residues from cleaning fluids can bake onto components and ruin

them.

Remove smoke and other residues with cotton swabs or unscented tissues wetted with isopropyl alcohol

99.9%. A commercial glass cleaner may be used, but residues must be removed with distilled water. Clean

with a slow circular motion from center to edge. Remove stuck particles with an unscented tissue or cotton

swab soaked in alcohol. Do not rub the surface: lift particles off with a soft repeated press.

Rinse with distilled water. Mixing the water with a small amount of wetting agent such as Kodak Photoflo will

help prevent streaking and spotting.

To clean the MAC 250 Wash:

1. Disconnect the fixture from power and allow the components to cool completely.

2. Use a vacuum and soft brush to remove any dust from the outside of the fixture and air vents.

Figure 12: Lamp installation

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Martin MAC 250 ENTOUR Manual de usuario Pagina 22