7-25
Failure Description Possible Cause Recommended Action
[00000100] is
displayed
The measured range of the
ventilator flow sensor is
abnormal.
1. Check whether the sampling line is
connected correctly.
2. Diagnose the failure using the valve
diagnosis tool: In the calibration
airway connection environment, start
the valve diagnosis tool. Seal the
expiratory valve with 4000 DA. Turn
on the inspiratory valve gradually, and
observe the measured values on the
calibration device when each valve is
switched on. If the measured value on
the calibration device close to (smaller
than) 45 L/min corresponds to a
sampling AD greater than 3900 on the
inspiratory flow sensor, the measured
range of the flow sensor on the
machine end is abnormal. In this case,
replace the flow sensor on the
machine end.
[00000200] is
displayed
The inspiratory flow sensor
does not satisfy monotonicity.
1. Check whether the check valve on
the inspiratory flow sensor end is
connected correctly.
2. Check whether the sampling line is
connected correctly.
3. Replace the inspiratory flow sensor.
4. Replace the VCM.
[00000400] is
displayed
The expiratory flow sensor
does not satisfy monotonicity.
1. Check whether the check valve is
connected correctly.
2. Check whether the sampling line is
connected correctly.
3. Replace the expiratory flow sensor.
4. Replace the VCM.
[00000800] is
displayed
The ventilator flow sensor does
not satisfy monotonicity.
1. Check whether the sampling line is
connected correctly.
2. Replace the ventilator flow sensor.
3. Replace the VCM.
[00001000] is
displayed
The resolution of the
inspiratory flow sensor is
incorrect.
1. Check the sampling line connection
and tightness.
2. Check the gas supply pressure.
3. Check the configuration of the
calibration device.
4. Troubleshoot the sensor and valve
fault using the valve diagnosis tool.
For details, see section 5.4.
5. Replace the corresponding flow
sensor on the circuit.
6. Replace the VCM.
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