Mindray WATO EX-55Pro, Service Manual

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5. Check the canister assembly.
Required tools:
 One VT PLUS
 One Lucer adapter connector
 One syringe
 Two Φ 6 silicon tubes
 One PU tube (6X300)
 Three breathing tubes
 One Y-shape tube
 One Y-shape breathing tube
 One breathing tube adapter connector
 One T-shape hexagon screw wrench
Test procedures:
(1) Disable the system switch.
(2) Remove the Pre-pak assembly and remove the breathing circuit.
(3) Install the Pre-pak assembly.
(4) Remove the sealing parts on two connectors of the canister assembly. Connect two
corrugated pipes and one Y-shape connector to two connectors of the lifting device.
Connect the other end of the Y-shape connector to the breathing tube adapter connector
using another corrugated pipe. Connect the syringe connector, pressure sensor connector
(positive pressure end) of the anaesthesia machine calibration device, and the breathing
tube adapter connector to the Y-shape tube, as shown in the following figure.
(5) Push the pushrod of the syringe to make the pressure reading on the anaesthesia machine
calibration apparatus rise to 30-35 cmH2O. Then, stop pushing. Remain the relative
position between the pushrod and the syringe body unchanged. If the pressure reading of
the anaesthesia machine calibration apparatus decreases more than 10 cmH2O within
30s, the canister assembly encounters a leakage issue. The test is not passed. This step is
required when the bypass of the canister assembly is enabled or disabled.