OPERATING INSTRUCTIONS
The headlight is attached to the power source cord by a “Quick
Detach” connector/switch provided on the headband. This con-
nector will accept only the 490 Series Headlights.
Correct headband size is obtained by use of headband adjust-
ment 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” connec-
tor 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
headband.
Top of power source has a flange to provide convenience for hang-
ing headlight when not in use.
The diameter of the light spot can be regulated from
3
/
4
" to 6
1
/
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.
