Mindray Datascope AS 3000, Service Manual

Page: 152 / 180

AS3000™ Service Manual 0070-10-0683 6 - 25
Periodic Maintenance Functional Tests
6.8.5.5 N
2
O Line Pressure Leak Test
1. Remove the N
2
O cylinder from the AS3000 .
2. Connect the N
2
O line pressure hose to the line pressure inlet on the AS3000 .
3. Pinch the N
2
O line pressure hose to stop N
2
O line flow.
4. Remove the N
2
O line pressure hose from the N
2
O line source.
5. The N
2
O line pressure gauge should not fall more than 2 psi in 20 seconds.
6. Reconnect the N
2
O line pressure and remove the pinch in the hose.
6.8.5.6 O
2
Line Pressure Leak Test
1. Remove the O
2
cylinder from the AS3000 .
2. Connect the O
2
line pressure hose to the line pressure inlet on the AS3000 .
3. Pinch the O
2
line pressure hose to stop O
2
line flow.
4. Remove the O
2
line pressure hose from the O
2
line source.
5. The O
2
line pressure gauge should not fall more than 2 psi in 20 seconds.
6. Reconnect the O
2
line pressure and remove the pinch in the hose.
6.8.5.7 AIR Line Pressure Leak Test
1. Remove the AIR cylinder from the AS3000 .
2. Connect the AIR line pressure hose to the line pressure inlet on the AS3000 .
3. Pinch the AIR line pressure hose to stop AIR line flow.
4. Remove the AIR line pressure hose from the AIR line source.
5. The AIR line pressure gauge should not fall more than 2 psi in 20 seconds.
6. Reconnect the AIR line pressure and remove the pinch in the hose.
6.8.5.8 Cylinder Supply Check Valves Test
1. Close and remove all gas cylinders from the AS3000 .
2. Verify the cylinder gauges return to zero.
3. Using the Digital Flow Meter, verify that no gas is escaping from any of the three yoke
connections on the
AS3000 .
4. Verify there is no external damage to the gas cylinder or yoke pins.
5. Reconnect the cylinder(s) as necessary.