Theory of Operation
Chapter 3: Theory of Operation
Prima™ Procedural Light Service Manual (man247ra) Page 3 - 5
DRAFT 6/4/99
3
Theory of Operation
The Prima™ Procedural Light is a self-contained lighting unit intended to
provide illumination during patient examination. The 120V model light
operates at 115/120V AC, 50/60 Hz, 1 A. The 230V model light operates at
230/240V AC, 50/60 Hz, 0.5 A.
Lamp Head/Yoke Assembly
The lamp head provides housing for the color correcting filter lens, the
reflector, and the quartz halogen lamp. A handle attached to the lamp head
allows the lamp head/yoke assembly to be rotated continuously 360°. The
handle is removable for sterilization purposes. The on/off switch is located on
the yoke that connects the lamp head to the rotating arm.
Rotating Arm
Located between the upright pole and the lamp head/yoke assembly, the
rotating arm moves both vertically and horizontally. The rotating arm provides
the wiring conduit for the low voltage AC between the transformer housing
and the lamp head/yoke assembly.
Transformer Housing
The transformer is located in the molded transformer housing which is
fastened to the upright pole. The transformer housing is the location for the AC
power cord inlet. It also acts as a handle for moving the Prima™ Procedural
Light.
Upright Pole
The upright pole supports the rotating arm and provides a location for the
transformer housing. The upright pole houses the wiring for the AC voltage
that runs from the transformer to the rotating arm.
Base
The base for the Prima™ Procedural Light has four casters: two with brakes,
and two free swivel. The base is weighted to provide a stable foundation for the
positioning of the light.
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