Mindray A8 Service Manual

5-9
3. Verify that all valves on this screen are turned off and Drive Gas Pressure is 0±5 kPa. Set
Drive Gas Valve Status to On and verify that the displayed value of Drive Gas Pressure is
150±5 kPa.
4. Open the cover of the vaporizer and verify that Drive Gas Pressure decreases to 0±5
kPa(0±0.7psi).
5. Close the cover of the vaporizer and set Drive Gas Valve Status to Off.
6. Install the vaporizer on the right vaporizer manifold and repeat steps 1 to 5.
7. If there are other vaporizers, repeat steps 1 to 6 to verify the status of each vaporizer.
8. Return back to the standby screen.
5.7.1.3 Monitoring the Liquid Level
1. Install the vaporizer in canister position 1 of the vaporizer manifold. Identify the vaporizer
type corresponding to position 1 on the status display and main display. Verify that the
vaporizer type is consistent with the vaporizer.
2. Check the liquid level displayed on the status display and verify that it is consistent with the
actual liquid level.
3. Install the vaporizer on the right vaporizer manifold. Identify the vaporizer type
corresponding to position 2 on the status display and main display. Verify that the vaporizer
type is consistent with the vaporizer.
4. Check the liquid level displayed on the status display and verify that it is consistent with the
actual liquid level.
5. If there are other vaporizers, repeat steps 2 to 4 to verify the status of each vaporizer.
5.7.2 Vaporizer Self-Locking Test
1. Connect a manual bag, a test lung and an operating scavenging system to the unit.
2. Install the vaporizer in canister position 1 of the vaporizer manifold. Press the unlock button
and verify that the vaporizer can be unlocked and pulled out.
3. Enter the ventilation mode, set the vaporizer output concentration to 0.2%, press the unlock
button, and verify that the vaporizer cannot be pulled out.
4. Install the vaporizer in canister position 2 of the vaporizer manifold and repeat steps 2 and 3.
5.7.3 Vaporizer Interlock Test
1. Attach two vaporizers to the vaporizer manifold.
2. Enter the ventilation mode.
3. Set the output concentration of the vaporizer in position 1 to 0.2% on the main display and
verify that the vaporizer in position 1 operates properly.
4. Set the output concentration of the vaporizer in position 2 to the minimum value. Verify that
the backlight of the vaporizer in position 1 is off, the corresponding vaporizer status on the
status display is gray (indicating that the vaporizer in position 1 stops operating), and the
vaporizer in position 2 operates properly.
5. Then set the output concentration of the vaporizer in position 1 to the minimum value.
Verify that the backlight of the vaporizer in position 2 is off, the corresponding vaporizer
status on the status display is gray (indicating that the vaporizer in position 2 stops
operating), and the vaporizer in position 1 operates properly.

Mindray A8 Specifications

General

Brand	Mindray
Model	A8
Category	Medical Equipment
Language	English