Mindray A5 Service Manual

A5/A3™ Service Manual 046-001141-00 5 - 25
Repair and Troubleshooting Pneumatic Circuit System Problems
Turn the knob clockwise until the bottom surface of the pressure head is in contact with the top
surface of the connector, as shown below.
FIGURE 5-18
5.3.1.4 Precautions for Use of Negative Pressure Ball
Besides one sealing cover, the negative pressure ball also has two one-way valves at its front end, as
shown below. The built-in one is connected with the gas inlet of the ball which permits the gas come
in only, and the exterior one only permits the gas come out. If the front sealing cover is removed or
loosened, the sealing performance of the negative pressure ball will compromise. In this case, you
need to tighten the sealing cover.
FIGURE 5-19
When the negative pressure ball is connected with the tested component, the ball permits the gas in
only, but meanwhile it’s free to release air when it’s pressed.

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