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Chapter 4 Control Portion
4.2
Valve Control Buttons
Suction button
5
Allows suction through forceps channel (port) in distal
end.
Suction is activated while this button is depressed.
6
Air/Water button
Used to blow air or water onto the surface of objective
lens from the nozzle in distal end.
To supply air, stop the hole in the center of this button
with a finger.
To supply water, depress this button.
4-4
5
6
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