PRG VL6C+ - Manual (Page 53)

VL6C+ ™ SPOT LUMINAIRE USER MANUAL 45
Aligning the Lamp
The design of the VL6C+ optical system is based on an optimally 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 allow for adjustment.
Tools:
Screwdriver, #2 Phillips
To align lamp:
WARNING: Backcap and adjustment knobs will be HOT during lamp operation. Wear gloves and/or use
tools to prevent burns.
To align lamp:
Step 1. Power up luminaire and allow to warm up for at least ten minutes.
Step 2. Set intensity to 100%.
Step 3. Position beam on a white wall at a distance of 10' to 20'.
Step 4. Using control console, open beam size iris, set zoom for mid-range, and adjust for hard edge.
Step 5. At backcap, using vertical and horizontal knobs, adjust hot spot to center of beam
(Figure 4-2.)
Step 6. Using focus knob, adjust beam for flat field.
Figure 4-2: Lamp Alignment Controls
Vertical
Horizontal
Focus
Captive Knob for lamp access
(does not adjust beam)