Martin MAC Viper Profile User's Guide download pdf (Page 55)

Service and maintenance 15

Lamp life

Monitor lamp hours using the resettable LAMP ON TIME counter in the INFORMATION control menu. To

reduce the risk of explosion, replace the lamp when it reaches the limit of its average service life, i.e. when

usage reaches 750 hours. Never exceed the lamp’s average service life by more than 10%. Replace the

lamp immediately if it is deformed or in any way defective.

For maximum service life:

• Avoid powering the lamp off until it has warmed up for at least 5 minutes.

• Before shutting down power completely, douse the lamp but leave power applied for a few minutes so that

cooling fans can prevent any momentary lamp temperature increase caused by heat from surrounding

components.

Lamp replacement

Warning! Wear safety glasses and gloves when handling lamps. The clear lamp bulb is integral with

the ceramic lamp base. Do not try to separate the bulb from the base.

Important! The lamp can be a stiff fit in its holder. Twist the lamp base a full 45° clockwise when

installing to ensure that the lamp contacts are fully engaged.

Replacement lamps are available from Martin™ by ordering P/N 97010346.

The clear bulb must be perfectly clean. Do not touch it with

your fingers. Clean the lamp with an alcohol wipe and polish

it with a clean, dry lint-free cloth before installing,

particularly if you accidentally touch the bulb.

To replace the lamp:

1. Douse the lamp but leave power applied for at least 30

minutes so that cooling fans continue to run, then

disconnect the fixture from power.

2. Tilt the head so that the text around the lamp access

cover is facing the right way up and the cover is easy to

reach.

3. See Figure 8. Release the Torx 20 cover screw A and

open the cover.

4. See Figure 9. Grasp the ceramic lamp

base, twist it 45° counterclockwise to

release it, then remove the lamp gently from

the fixture.

5. See Figure 10. Hold the replacement lamp

so that the external wire B is facing up

towards the top of the head (towards the

vertical and horizontal alignment screws C

and D) and line up the contacts on the lamp

base with the slots in the lampholder. Slide

the lamp into the fixture until the contacts

are fully inserted in the slots, then twist the

lamp base a full 45° clockwise until it locks

into position with a noticeable click. The

lamp is a stiff fit and trying to strike a lamp

that is not correctly installed can cause

damage that is not covered by the product

warranty, so ensure that the lamp is

correctly locked into position.

OPEN

LOCKED

Figure 8: Lamp access

Figure 9: Lamp lock / unlock

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Martin MAC Viper Profile User's Guide Page 55

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