Mindray A8 Operating Instructions

Alarm Test Preoperative Tests
5 - 14 Operator’s Manual of Anesthesia System
5.12 Alarm Test
Alarms also can be verified by creating an alarm condition on the equipment and verifying the
corresponding alarm indicators are present on the anesthesia system.
5.12.1 Prepare for Alarm Tests
1. Connect the test lung or manual bag to the Y-piece of the breathing circuit.
2. Set the Auto/Manual switch to the Auto position.
3. Set the System switch to the ON position.
4. Set the system to Standby mode.
5. Set Patient Size to Adult.
6. Set the ventilator controls as follows:
•Ventilation mode: VCV
• Vt: 500 mL
• RR: 12 bpm
• I:E: 1:2
•Tpause: 10%
•PEEP: 0 cmH
2
O
• Plimit: 30 cmH
2
O
7. Set the Auto/Manual switch to the Manual position.
8. Set the O
2
flow to within the range of 0.5 to 1 L/min.
9. Set the Auto/Manual switch to the Auto position.
10. Ensure that:
• The Main Screen displays the correctly set data. The measured values should be within the
tolerances specified in the specifications. (See "Ventilator Specifications", Table 10.11 on
Pages 10-21.
5.12.2 O
2
Concentration Monitoring and Alarm Test
NOTE: For the anesthesia system with the Gas module installed, disconnect
the sample line from the Y-piece and breathe into it until you see a CO
2
reading on the screen. Then reconnect the sample line to the Y-piece.
This will activate the gas module alarms.
1. Set the Auto/Manual switch to the Manual position and exit Standby mode.
2. If the system has an AG module configured with O
2
monitoring functionality available, make
sure that the pre-heating of the module has been complete. Keep the sampling port on the
watertrap of the AG module facing the air and check the FiO
2
value on the Main Screen to make
sure that approximately 21% O
2
is measured in room air. If the system has no AG module
configured with O
2
monitoring functionality available or has no AG module configured, make
sure that the system is using the O
2
sensor and the O
2
sensor has been calibrated. Remove the
O
2
sensor from the breathing circuit, but do not disconnect the cable of the O
2
sensor. After
three minutes, check the FiO
2
value on the Main Screen to make sure that the approximately
21% O
2
is measured in room air.
3. On the Main Screen, select the [Alarms] soft key > [Limits] tab. Set the FiO
2
low alarm limit to 50%.
4. Ensure that a [FiO
2
Too Low] alarm occurs.

Mindray A8 Specifications

General

Brand	Mindray
Model	A8
Category	Medical Equipment
Language	English