Respironics ESPRIT, Руководство по обслуживанию, Страница: 72 / 329

Chapter 6
6-6
Esprit® Ventilator Service Manual © Respironics, Inc. REF 580-1000-02 G
Diagnostic Codes
2140 Flow sensors cannot erase table.
This code indicates that flow sensor
calibration tables stored on the CPU
PCB cannot be erased.
Replace CPU PCB.
2141 Inhalation autozero solenoid cannot
open.
Block patient wye (test 1): patient
circuit pressurized to 50 cmH
2
O,
then inhalation autozero solenoid
commanded to energize (open), and
inspiration pressure transducer
(PT3) should measure 0 cmH
2
O.
This code indicates that PT3
measured >3 cmH
2
O or <-3 cmH
2
O.
1. Check inhalation autozero solenoid
(Chapter 5).
2. Replace three-station solenoid.
3. Replace sensor PCB.
4. Replace main PCB.
2142 Exhalation autozero solenoid cannot
open.
Block patient wye (test 1): patient
circuit pressurized to 50 cmH
2
O,
then exhalation autozero solenoid
commanded to energize (open), and
exhalation pressure transducer (PT2)
should measure 0 cmH
2
O. This code
indicates that PT2 measured >3
cmH
2
O or <-3 cmH
2
O.
1. Check inhalation autozero solenoid
(Chapter 5).
2. Replace three-station solenoid.
3. Replace sensor PCB.
4. Replace main PCB.
2152 Patient wye not unblocked.
Block patient wye (test 1): with the
wye unblocked and the safety and
exhalation valves closed, a 25-LPM
air flow should create a back
pressure <10 cmH
2
O as measured
by inspiratory pressure transducer
(PT3). This code indicates that PT3
measured a back pressure >10
cmH
2
O.
1. Verify that circuit is not a neonatal
circuit.
2. Check that patient wye is unblocked.
3. Try new inspiratory bacteria filter.
4. Check for occlusion in the inspiratory
limb of the patient circuit.
2156 Inhalation transducer autozero
failure.
Block patient wye test (test 1): with
no pressure in the circuit, the
inspiratory pressure transducer
(PT3) and exhalation pressure
transducer (PT2) are cross-checked.
This code indicates that the PT3
measurement was out of range.
1. Check for crimped tube.
2. Check inhalation solenoid (Chapter
5).
3. Replace sensor PCB.
4. Replace three-station solenoid.)
5. Replace main to sensor cable.
6. Replace analog PCB.
7. Replace main PCB.
Diagnostic
Code Code Description Recommended Repair