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Chapter 4 Inspection
HIGH FLOW INSUFFLATION UNIT UHI-3
Inspection of the gas supply and warning for insufficient gas
supply function
When a gas cylinder is connected
1.
Confirm that the bar graph for supply pressure indicates a pressure of at
least 3 green LED bars. If the bar graph for supply pressure lights red and
an alarm sounds when the START switch is pressed, the gas cylinder’s
valve is not open or the CO
2
gas volume in the cylinder is insufficient. If the
warning alarm continues even if the gas cylinder’s valve is open, the CO
2
gas volume in the cylinder is most likely insufficient. In this event, replace it
with a new cylinder, as outlined in Section 3.3, “Connecting a CO
2
gas
cylinder”. Always have a spare CO
2
gas cylinder available.
2.
Close the gas cylinder’s valve and confirm that the supply pressure remains
unchanged. If the indicator drops down, gas is leaking. Check the
connection of the cylinder hose again. If the indicator continues to move
down, terminate operation and immediately contact Olympus.
3.
While the gas cylinder valve remains closed, set the insufflation mode to
HIGH and press the START switch.
4.
While insufflation is performed, confirm that the bar graph for supply
pressure moves down. When the pressure drops below 3 LEDs, confirm
that the alarm sounds.
5.
Press the STOP switch and open the gas cylinder’s valve.
When the adaptor for medical gas pipeline is connected
1.
Confirm that the green LED at the bottom of the bar graph for supply
pressure is lit. If the red LED lights when the START switch is pressed, the
wall supply pressure may have been reduced, or the hose may not be
properly connected. Check the supply pressure and hose connection.
2.
Press the STOP switch.