Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 4 - 61
Calibration System Calibration
NOTE: Different pressure meters may require different adapters.
FIGURE 4-81
FIGURE 4-82
2. Disconnect the pipeline on the back end of the back pressure valve.
3. Connect to O2 source, and adjust O2 needle valve, while observing the flowmeter on the
system interface of A7, to set the O2 flow rate to 5±0.1L/min.
4. Loose the nut of the back pressure valve.
5. Adjust the bolt of the back pressure valve, while observing the displaying pressure value of
Anesthesia machine calibration device, to set the pressure value to 237 ± 10 cmH2O.
6. Lock the Nut, as shown in the following figure.
Pressure monitor
port
3140-08-00 Y piece
Connect to the
pressure monitor
port of Anesthesia
machine calibration
3106-10-00 adapter
connector

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