Mindray A5 Service Manual

Performance Verification Periodic Maintenance
3 - 36 046-001141-00 A5/A3™ Service Manual
3.11 Performance Verification
NOTE: Set the Gas Flow Analyzer Correction Mode to ambient temperature
and pressure.
3.11.1 Manual Ventilation Test
1. Ensure that the gas pressure for O2, N2O, and AIR is within specifications.
2. Attach a breathing circuit and test lung to the Y-fitting of the breathing circuit.
NOTE: For testing purposes always use a reusable breathing circuit.
3. Power OFF the anesthesia system.
4. Set the mechanical Auto/Manual switch to MANUAL.
5. Set the APL Valve to approximately 30 cmH2O.
6. Set the AIR flow to approximately 5 L/min using the flow control valve. Use O2 if AIR is not
available.This will require turning the main switch to the ON position.
7. Squeeze the breathing bag once every 10 seconds to inflate and deflate the test lung to
approximately 20 cmH2O of pressure.
8. Verify the inflation and deflation of the test lung.
3.11.2 Manual Mode Ventilation Test
1. Power ON the anesthesia system.
2. Attach a breathing circuit.
NOTE: For testing purposes always use a reusable breathing circuit.
3. Attach a test lung to the Y-fitting of the breathing circuit.
4. Perform the start up tests per the on-screen instructions. Ensure successful completion.
5. Set the mechanical Auto/Manual switch to MANUAL. Press the screen for the screen to change
to manual Mode.
6. Set the APL Valve to approximately 25 cmH2O. Push the O2 Flush button to fill the breathing
bag.
7. Set the AIR flow to 1 L/min using the flow control valve. This will change the screen to manual
Mode
8. Squeeze the breathing bag once every 3 seconds.
9. Verify the inflation and deflation of the test lung.
10. Verify that an airway pressure waveform and all numeric values appear on screen during bag
compressions.
11. Stop squeezing the breathing bag and set the APL Valve to the open position (SP).
3.11.3 APNEA Alarm Test
1. While in the Manual Ventilation Mode, stop ventilating the test lung.
2. Verify that the following APNEA alarm signals activate at approximately 30 seconds from the last
bag compression.
• APNEA appears on the screen.
• An alarm tone sounds.

Mindray A5 Specifications

General

Type	Anesthesia Machine
Brand	Mindray
Model	A5
Power Supply	100-240 V AC, 50/60 Hz
Ventilation Modes	SIMV, PSV
Flowmeters	O2, N2O, Air
Vaporizer Capacity	Up to 3 vaporizers
Safety Features	O2 failure protection, low pressure alarm
Gas Module	Optional integrated gas module
Integrated Air Compressor	Optional
Patient Monitoring	Integrated monitoring with optional modules