Lamp; About The Discharge Lamp; Lamp Replacement - Martin MAC 550 Profile User Manual

L
AMP

About the discharge lamp

The MAC 550 Profile is designed to use a double-ended 400 W discharge lamp. Two lamps are approved:
the OSRAM HTI 400 W/D3 and the Philips MSR 400 SA/DE Gold. Both lamps have a color temperature of
7500K and an average service life of 750 hours. Both lamps are capable of hot restrike.
Warning! Use only approved lamps. Installing any other lamp may create a safety hazard or damage
the fixture!
Discharge lamps can explode. Always wear safety glasses and gloves when replacing or
servicing lamps.
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. To read lamp hours from the control panel, please refer to "Readouts" on
page 12. Replace the lamp immediately if it is in any way defective.
For maximum service life, avoid turning off the lamp before it has warmed up for at least 5 minutes.

Lamp replacement

Important! Do not touch the quartz bulb with bare fingers.
Replacement lamps are available from your Martin dealer.
The clear quartz bulb must be clean and free of any oils from your fingers. Clean the lamp with an alcohol
wipe and polish it with a dry cloth, particularly if you accidentally touch the bulb.
To repl ace the lamp
1. Disconnect the fixture from power and allow it to cool for at least 30 minutes or until the lamp access
plate is cool enough to touch. Lock the head right-side up.
2. Release the 4 quarter-turn fasteners marked with arrows on the lamp access plate, as shown in Figure
1. Pull the lamp assembly straight back as far as it goes and let it rest in place.
3. Push down the retention spring on the right end of the socket and push out the pin. You can use a
screwdriver to pry the lamp out of the socket as shown in Figure 2. Remove the lamp.
6
Figure 1: Lamp access
MAC 550 Profile
Figure 2: Lamp removal