Mindray WATO EX-55Pro, Service Manual

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8.6.1.4 Adjusting the Regulator of the Pipeline Gas Supply Inlet
Turn the regulator clockwise by using an M3 inner hexagon wrench to increase the pressure or
anticlockwise to decrease the pressure. See the figure below. Each time after you adjust the
pressure, release the pressure inside the pipeline gas supply inlet by using the calibration hose of
the regulator (PN0453-00-1216). Then turn on the pipeline gas source gain. Observe the adjusted
pressure on the test pressure gauge. Adjust the pressure to 200 kPa.
8.7 Hardware and Electrical Faults
Failure
Description
Possible Cause Judgment Method Recommended
Action
The
anaesthesia
machine
cannot be
powered on.
The system
switch is in poor
condition.
According to the startup signal flow,
remove the interconnection connector
between the system switch cable and
the airway cable, and short-circuit the
pins of the airway cable. If the
anaesthesia machine can be started,
the system switch is in poor condition.
If the anaesthesia machine cannot be
started, proceed with the analysis.
Replace the
system switch.
The cable is in
poor condition.
Short-circuit the J12 pins of the
mother board by using a metal tool. If
the anaesthesia machine can be
started, the airway cable or system
switch cable is in poor condition.
Replace the
cable.
The power board
is faulty.
If the anaesthesia machine still cannot
be started after the preceding two tests
are finished, the power board is
faulty.
Replace the
power board.