Cylinder Tests Preoperative Tests
4 - 20 046-003777-00 A5/A3â„¢ Operating Instructions
4.10 Cylinder Tests
NOTE: You do not need to perform cylinder tests if the A5/A3 anesthesia
machine is not equipped with cylinders.
4.10.1 Check the Cylinder Pressure
1. Set the system switch to the OFF position and connect the cylinders to be checked.
2. Open each cylinder valve using the supplied wrench.
3. Ensure that each cylinder has sufficient pressure. If not, close the applicable cylinder valve
and install a full cylinder.
O
2
cylinder input range: 6.9 to15.5 MPa (1000 - 2250 psi)
N
2
O cylinder input range: 4.2 to 6 MPa (600 - 870 psi)
Air cylinder input range: 6.9 to15.5 MPa (1000 - 2250 psi)
4. Close all cylinder valves.
4.10.2 O
2
Cylinder High Pressure Leak Test
1. Set the system switch to the OFF position and disconnect the O
2
pipeline supply.
2. Turn off the O
2
flowmeter.
3. Open the O
2
cylinder valve.
4. Record the current cylinder pressure.
5. Close the O
2
cylinder valve.
6. Record the cylinder pressure after one minute.
If the cylinder pressure decreases more than1.25 MPa (181 psi), install a new cylinder gasket.
Repeat steps 1 through 6. If the leak continues, do not use the cylinder supply system.
4.10.3 N
2
O Cylinder High Pressure Leak Test
1. Set the system switch to the OFF position and disconnect the N
2
O pipeline supply.
2. Turn off the N
2
O flowmeter.
3. Open the N
2
O cylinder valve.
4. Record the current cylinder pressure.
5. Close the N
2
O cylinder valve.
6. Record the cylinder pressure after one minute.
If the cylinder pressure decreases more than 0.5 MPa (73 psi), install a new cylinder gasket.
Repeat steps 1 through 6. If the leak continues, do not use the cylinder supply system.
4.10.4 Air Cylinder High Pressure Leak Test
1. Set the system switch to the OFF position and disconnect the Air pipeline supply.
2. Turn off the Air flowmeter.
3. Open the Air cylinder valve.
4. Record the current cylinder pressure.
5. Close the Air cylinder valve.
6. Record the cylinder pressure after one minute.
If the cylinder pressure decreases more than 1.25 MPa (181 psi), install a new cylinder gasket.
Repeat steps 1 through 6. If the leak continues, do not use the cylinder supply system.