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2. NOMENCLATURE AND FUNCTION
A/W
DRAIN
AIR/WATER CONNECTOR
Inserts into Air/Water socket of
endoscope umbilical cable
(light guide plug)
WATER BOTTLE
Should be 2/3
full with sterile
water.
AIR/WATER-DRAIN LEVER
“DRAIN” will purge (drain)
water in the water lines by
allowing air flow only.
“A/W” (= Air/Water) allows air
and water feeding during
procedure controlled by a
Air/Water valve on scope
head.
AIR OUTLET
POWER SWITCH
Activates main
power.
BRIGHTNESS CONTROL KNOB
Brightness of observing
field can be adjusted.
SCOPE LIGHT GUIDE SOCKET
AIR PUMP SWITCH
Power switch must be on
to activate Air Pump.
LAMP HOUSING COVER
Using a flat blade screw driver, open the
cover to expose lamp housing for lamp
replacement.
Note: Following lamp replacement,
properly position and fully
secure the Lamp Housing Cover
POWER CORD
RECEPTACLE
FUSE HOLDER
POWER CORD PLUG
USA Model: To ensure adequate gounding
plug into Hospital Grade receptacle.
Europe model: Different type according to
(shown) each country's specifications
with grounding provision.
Voltage requirement is shown on the rear panel.
PENTAX
P
U
S
H
F
US
E
P
U
S
H
F
US
E
NOTE:
Do NOT use the new PENTAX OS-H4 water bottle cap with the older OS-H2 water container/bottle.
Although the cap may appear to fit onto the bottle, air may escape resulting in insufficient pressure
and flow of air and water during the endoscopic procedure. Both the PENTAX water bottle cap and
bottle (container) are identified by their appropriate model designation. Ensure that an OS-H4 cap is
used only with the OS-H4 water container/bottle. Do NOT overtighten the bottle cap. Overtightening
can cause the bottle cap to break.
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