Mindray WATO EX-55Pro, Service Manual

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14. Flow sensor calibration (refer to 7.3.2 Flow calibration (Service)).
15. O2 sensor calibration (refer to 7.3.6 O2 Sensor Calibration).
6.5 Other Materials Need to be Checked and Replaced
6.5.1 Maintenance and Replacing of Battery
It is no need to maintain the lithium battery. If the battery cannot work normally, replace it as
follows:
1. Open the access door of the anesthesia machine.
2. Open the battery box.
3. Remove the old battery.
4. Install new battery.
5. Closed the battery box.
6. Closed the rear cover plate.
Please only adopt the battery (P/N: 022-000008-00) which Mindray anesthesia machine supports.
6.6 Tests after Maintenance
After the anesthesia machine at the client end is maintained, some routine tests are required to
check if the current status of the anesthesia machine is normal. The following table lists the
routine tests.
SN Test item Functional description Test interval
1
Check the
mechanical
ventilation
mode
1. Check if mechanical ventilation is provided normally
and if an alarm occurs.
2. Check if the preset values of pressure and TV are
same to the measured values.
3. Check if the pressure measured by the pressure
sensor is same to that indicated by the airway pressure
gauge and if the TV measured by the flow sensor is
same to that indicated by the graduation on the bellows
housing.
4. Roughly judge if the breathing system has a
significant leak by observing how much fresh gas is
compensatedt and observing if the folding bag
collapses.
After each
service or at
the time of
return visit
2
Breathing
system leak
test in 1. Check the pneumatic circuit in mechanical ventilation
mode for leaks, including bellows, drive gas circuit,
sodalime canister, patient tubes, flow sensors and their After each
service or at
the time of