with Wall Mounted Power Supply
Thank you for purchasing this modern, convenient halogen headlight.
This manual provides specifications and instructions for use and maintenance, enabling you to fully enjoy the benefits offered by this headlight
over a long period of time.
State Street Road
Skaneateles Falls, NY 13153-0220 U.S.A.
mounting plate to wall or other surface with
supplied. The two holes in the mounting plate
be vertical and flush with the wall. The wide
the plate should be down.
power source into mounting plate from above,
sure tabs on unit engage tabs on mounting
Plug into any 120 V., 50-60 Hz AC* grounded
and unit is ready to use.
l *220-250 V., 50-60 Hz also available.
CAUTION: NOT FOR USE IN THE
PRESENCE OF FLAMMABLE
“QUICK DETACH” - m
11 Ft. Cord to Headlight
CAUTION: NOT FOR USE
IN THE PRESENCE OF
C--- Knurled Ring--Green-Ring-Greencontrols spot size
The headlight is attached to the power source cord by a “Quick
Detach” connector/switch provided on the headband. This connector will accept only the 490 Series Headlights.
Correct headband size is obtained by use of headband adjustment screw.
For convenience, two on-off switches are furnished. The main
power switch is on the power source and is provided with a pilot
light. This may be left on when the headlight is not in use. A
secondary switch is incorporated on the “Quick Detach” connector at the back of the headband. To operate, simply push connector
all the way down for “on,” back up to the first click for “off.” This
switch operates headlight only. Pull all the way off to detach from
Top of power source has a flange to provide convenience for hanging headlight when not in use.
The diameter of the light spot can be regulated from 3/4" to 61/2"
at distance of 14” by means of a green knurled ring on the lamp
housing. This ring controls an iris diaphragm. The intensity of
light is uniform at 400 foot candles minimum over entire spot area
up to 3” diameter.
The halogen (regenerative cycle) lamp in this unit will provide
uniform intensity of illumination for the life of the lamp-no gradual
dimming. A sophisticated optical system eliminates filament image,
shadows or streaks. The natural tissue colors are preserved.
Model No. 49003
Input . . . . . . . . . . . . . . . 120 V., 50-60 Hz, .19 amp. (220-250 V., 50-60 Hz also available)
Power Cord . . . .
Headlight Cord .
7.2 V. ~3% at transformer-6.3 V. AC, 2.1 amp. at lamp
Welch Allyn No. 02600 (Average life 100 hrs.)
.3 amp. Slo-Blow--Factory Replacement Required
No. 18 AWG, 3 wire grounded cord, 8 feet long
11 feet long-will accept only No. 490 Series W.A. Headlights
(approximate). Headlight-6 oz. Power Source w/Mounting Plate-l lb. 10 oz.
Dimensions (Power Supply) H. = 4.39”
D. = 2.30”
W. = 2.34”
LAMP REPLACEMENT ___-
ALLOW LAMP TO COOL BEFORE CHANGING.
Unscrew serrated section “A” counterclockwise from section "B". Depress lamp, turn
counterclockwise, and pull straight out. Replace with WA. No 02600 Lamp. Replace
by aligning lamp key wiih slot, depress fully, and turn clockwise until locked.
For best performance of halogen lamps, it is necessary to remove any grease or
fingerprints from the glass with a clean cloth moistened with alcohol.
Failure to follow cleaning procedure will result in permanent stains on the glass and
reduction of light output.
Fuse-Factory Replacement Necessary.
Ground Continuity Check-The resistance measured between the back plate of the
power source and the ground pin of the plug should be virtually zero.
For repairs, send complete unit (headlight and power source) to:
WELCH ALLYN, INC., Technical Services, 4341 State St. Rd. Skaneateles Falls, NY 13153-0220
Part No. 490081-2
Printed in U.S.A.