Mindray A9 Service Manual

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4. If the flow does not meet the requirement, verify the status of the hospital's disposal system
or adjust the position of the float to be between the MIN and MAX lines by turning its flow
regulating knob (counter-clockwise to increase the flow and clockwise to decrease the flow).
5.12 Negative Pressure Suction Tests
1. Check that the suction tubes between the overfill protection cup, filter, and liquid collection
bottle are correctly connected.
2. Connect the external negative pressure source and the negative pressure gas supply inlet
assembly of the anesthesia machine via negative pressure gas supply hose.
3. Pinch the patient connection of the suction tube. Set the negative pressure regulator to FULL
and check if the negative pressure gauge displays the maximum negative pressure value.
4. Set the negative pressure regulator to OFF and check if the pointer on the negative pressure
gauge returns to zero gradually.
5. Set the negative pressure regulator to REG and turn the negative pressure regulating knob
slowly. When you turn the knob clockwise, the pressure value displayed on the negative
pressure gauge decreases gradually until returning to zero. When you turn the knob
counterclockwise, the pressure value displayed on the negative pressure gauge increases
gradually until reaching the maximum value.
6. Set the negative pressure regulator to OFF again. Loosen the folded negative pressure
suction tube.
7. Disconnect the negative pressure gas supply hose.
5.13 Alarm Tests
5.13.1 Power Failure Alarm Test
1. Set the system switch to the On position.
2. Disconnect the AC mains.
3. Ensure that the AC power indicator and battery charge indicator are off. An audible alarm
should sound, and the prompt message Battery in Use should be displayed on the main
screen.
4. Reconnect the AC mains.
5. Ensure that an audible alarm sounds and the AC power indicator and battery charge
indicator are on. Verify the Battery in Use message disappears.
NOTE
 When the battery is full, the battery charge indicator is off.
5.13.2 Breathing Circuit Alarm Tests
1. Remove the absorber canister
2. Verify the alarm message CO2 Absorber Canister Not Locked appears.

Mindray A9 Specifications

General

Brand	Mindray
Model	A9
Category	Medical Equipment
Language	English