Vari Lite VL2500 Spot Luminaire, Руководство по обслуживанию

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VARI
❋
LITE ® - VL2500™ W
ASH
L
UMINAIRE
S
ERVICE
M
ANUAL
18 09-December-2004 02.9676.0022 0
Align Lamp for Flat Field
The design of the optical system is based on a flat field. A flat field is one where there
is no detectable hot spot.
After a new lamp is installed, it will be necessary to align the lamp to optimize the
beam. Knobs located at the luminaire’s backcap will allow adjustment.
WARNING: Backcap and adjustment knobs will be HOT during lamp operation.
Wear protective gloves and/or use tools to prevent burns.
To align lamp:
Step 1. Using internal menus select Lamp test to set beam. Refer to VL2500 Wash
Luminaire User’s Manual for more information. (If using console, set
intensity to 100% and adjust diffusion to produce a tight beam.)
Step 2. Position beam on a white wall at a distance of 10' to 20'.
Step 3. At backcap, using Vertical and Horizontal knobs, adjust hot spot to center of
beam ( Figure 2-3 ).
Step 4. Using Focus knob adjust beam for flattest field.
Figure 2-3: Aligning Lamp for Flat Field
Vertical
Horizontal
Focus
Captive Knob for lamp access
(does not adjust beam)