Olympus UCR - Operation; Operational Precautions

4.6 Inspection of the endoscopic CO2 regulation unit
39
UCR INSTRUCTION MANUAL
Ch.4
 Inspection of the gas supply

When a gas cylinder is connected
CAUTION
If the gas flow indicator lights red, the gas cylinder 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 valve is open, the CO
2
gas volume in the cylinder is insufficient. In this
case, replace it with a new cylinder, as described in Section 3.3, “Connecting a
CO
2
gas cylinder”. Always have a spare CO
2
gas cylinder available.
1 Confirm that the “Cylinder” mode is selected using the gas source selection switch on
the rear panel and that the gas pressure display indicates at least three green LED
bars.
2 Close the gas cylinder valve and confirm that the supply pressure remains
unchanged.
CAUTION
• The gas pressure display displays not the remaining amount of the CO
2
gas but
the supply pressure. Always have a CO
2
gas cylinder available in case the supply
pressure drops down.
• If the supply pressure drops down, gas is leaking. Check the connection of the
cylinder hose again. If the supply pressure continues to move down, stop operating
and immediately contact Olympus.
3 Disconnect the gas tube from the CO
2
gas outlet of the endoscopic CO
2
regulation
unit.
4 Press the start/stop switch to start gas supply.
5 While insufflation is performed, confirm that the gas pressure display moves down.
When the red LED illuminates, confirm that the insufflation stops and the alarm
sounds.
6 Connect the gas tube to the endoscopic CO
2
regulation unit as described in
Section 3.6, “Connecting the Gas tube (MAJ-1741), Low flow gas tube (MAJ-1742),
and Extra low flow gas tube (MAJ-1816)” and open the gas cylinder valve after
inspection.