Mindray A7 Service Manual

Pneumatic Circuit System Problems Repair and Troubleshooting
5 - 44 046-006272-00 A7™ Service Manual
FIGURE 5-32
7. Release the negative pressure ball. If the negative pressure ball is fully expanded within 30
seconds, it indicates that the total flowmeter assembly is damaged. In this case, pull out the tube
plug at the inlet of needle valve and perform the following operations.
8. Pull out No.26 PU tube which connects the back pressure regulator to the total flowmeter.
Disconnect at the total flowmeter end.
9. Occlude the pulled-out tube end on the total flowmeter by using 3126-08-00 tube plug.
FIGURE 5-33
10. Compress the negative pressure ball still connected to tube 25 to bleed the air inside.

Mindray A7 Specifications

General

Type	Anesthesia Workstation
Brand	Mindray
Model	A7
Display	15-inch color touchscreen
Oxygen Flush	Yes
Gas Inlets	O2, N2O, Air
Ventilation Modes	SIMV, PSV
Breathing System	Integrated
Gas Monitoring	O2, CO2, N2O
Monitoring Parameters	FiO2
CO2 Monitoring	Mainstream or Sidestream
Power Supply	100-240 V, 50/60 Hz