Starting Gas Withdrawal; Finishing Gas Withdrawal; Disassembly - VTI SELECT ERGO K622-24X Gebrauchsanleitung

PRESSURE REGULATOR SELECT ERGO
Operating instruction
• Check the pressure regulator for damage and contamination.
• Keep the pressure regulator free from oil and grease.
• Check the maintenance interval ("8. Maintenance").
• Do not use any tools to turn handwheel.
• Check the intended use, compatibility and CE marking of the accessories/medical
products connected to the pressure regulator.
• Do not connect the patient until pressure regulators are open.

5.1 Starting gas withdrawal

1. Check whether the pressure regulator is connected correctly to the gas cylinder.
2. Set the pressure regulator to the flow rate "0".
3. Connect the accessories.
4. Open slowly the gas cylinder valve by turning it counterclockwise at least one turn.
5. Check the existing cylinder pressure on the pressure gauge. If the pointer is in the red
range, the cylinder must be changed.
6. Open the pressure regulator and adjust the required flow rate by turning the handwheel
counterclockwise.
7. Connect the patient for supply
Notice:
If the gas cylinder valve is opened quickly, a pressure surge may occur, which is vented via
the safety valve. The noise occurring here is not an indication of a defect.

5.2 Finishing gas withdrawal

1. Close the gas cylinder valve hand-tight by turning the handwheel clockwise.
2. Disconnect the connection to the patient.
3. Set the pressure regulator to the highest flow stage.
4. Let the remaining gas flow out of the pressure regulator until the pressure gauge is at "0".
5. Set the flow rate on the pressure regulator to "0".
4. Remove the patient supply.
Notice:
Always leave a residual pressure in the gas cylinder (red indication area of pressure gauge).
Close always the gas cylinder valve to end the gas withdrawal. The pressure regulator must
not be used as a shut-off valve.
6.

Disassembly

1. Finishing the gas withdrawal ("5.2 Finishing gas withdrawal")
3. Turn the connection from the inlet counterclockwise to remove the pressure regulator
from the gas cylinder valve.
Notice:
Check the pressure regulator each time you change the gas cylinder. ("6.Function check").
Document: 0172.14.332 Index d 2021-03-25 28