TECHNICAL AND MAINTENANCE MANUAL
Graph VENTILATOR
Review : 04
Date: 09/05/06
32
TROUBLE SHOUTING
PROBLEM
POTENTIAL CAUSE
CORRECTIVE ACTION
Water in the device
1.
Water has entered
through the air or
oxygen supply.
2.
1. Open the device and
clean all pneumatic
components (2.8kg/cm2
pressure regulators,
proportional valves,
nonreturn valves, 10 PSI
regulator,
pneumotachograph,
meshes of
pneumotachograph)
Then, recalibrate the
device completely.
Not all LED’s of the keyboard
are lit.
1.
Burnt LED’s.
2.
Disconnected key board
jack.
3.
1. Disassemble the device
and check and replace all
burnt LED’s.
2.
Check the connection of
the key board to the
CPU, and clean contacts.
3.
Autocycling of device
1. Incorrect initial
calibration.
2. Leak in the patient
circuit
3. Extremely high
electromagnetic
interference (EMI).
4.
Inadequate sensitivity.
5.
1. Redo initial calibration.
2. Check the patient circuit.
3. Check if there is a high
emission electromagnetic
equipment nearby that
may be interfering with
the device.
4. Set an adequate
sensitivity.
Irregular baseline flow
1. Decalibrated device.
2.
Decalibrated
proportional valves.
3.
1. Recalibrate
pneumotachographs,
proportional valves and
FO2.
2. Recalibrate proportional
valves and FO2.
Transitory failure in the reading
of pressures, volumes with
autocycling.
1.
Extremely high
electromagnetic
interference (EMI).
2.
1. Check if there is a high
emission electromagnetic
device nearby.
Summary of Contents for NEUMOVENT
Page 1: ...Graph ventilator Technical manual review 04 MAY 2006 ...
Page 3: ...CHAPTER I GENERAL AND OPERATION FEATURES ...
Page 12: ...TECHNICAL AND MAINTENANCE MANUAL Graph VENTILATOR Review 04 Date 09 05 06 9 ...
Page 13: ...TECHNICAL AND MAINTENANCE MANUAL Graph VENTILATOR Review 04 Date 09 05 06 10 ...
Page 30: ...CHAPTER II MAINTENANCE INSTRUCTIONS ...
Page 32: ...CHAPTER III TROUBLE SHOOTING ...
Page 37: ...CHAPTER IV SENSOR VERIFICATION ...
Page 44: ...CHAPTER V EQUIPMENT OPENING AND CLOSURE ...
Page 60: ...CHAPTER VI DETAIL OF ASSEMBLIES ...
Page 70: ...CHAPTER VII ELECTRONIC BOARDS DETAIL ...
Page 78: ...CHAPTER VIII CALIBRATION ...
Page 90: ...CHAPTER IX FINAL CONTROL ...