Glossary Of Terms - Welch Allyn CL 300 Service Manual

Surgical illuminator
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G
T
LOSSARY OF
ERMS
AC
COM
DMM
Fiber Optic Bundle
Leakage Current
LED
Metal Halide
NO
PC Board
PEM
RTV
TRMS
VDC
Xenon
1-42
Alternating Current
Found on power connectors, switches, etc... indicating Common wire termination
Digital Multi Meter
Any of a number of light transmission devices characterized by use of multiple, hair thin
strands of cladded glass fibers. Used to deliver light from illuminator box to work area.
Usually a specified maximum amount of allowable current to pass through isolated
electrical components when subjected to very high electrical potentials.
Light Emitting Diode
Any of a number of metallic compounds, usually iodides that are used in trace amounts in
discharge light sources. Metal halides are incorporated to produce the desired spectral
content of the light source.
Normally Open, Found on switches indicating normally open termination.
Printed Circuit Board
Power Entry Module
Room Temperature Vulcanizing Silicone
True Root Mean Squared - used to characterize accuracy of digital multi-meters.
Voltage -Direct Current
An elemental gas used commonly used in lighting products. Used as an evaporant
suppressant in tungsten halogen lamps or light emission in gaseous discharge lamps.
WELCH ALLYN

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