Respironics ESPRIT, Руководство по обслуживанию, Страница: 77 / 329

Chapter 6
Diagnostic Codes
REF 580-1000-02 G Esprit® Ventilator Service Manual © Respironics, Inc.
6-11
3121 Relief valve cracking flow not stable.
Pressure relief valve test (test 9): the
oxygen flow sensor (FS2) should
measure 1 LPM during this test.
This code indicates that FS2
measured <0.8 LPM or >1.2 LPM.
1. Check pressure relief valve (Chapter
5) and adjust if necessary.
2. Replace pressure relief valve.
3. Replace sensor PCB.
3122 Relief valve cracking pressure out of
range (<120 cmH
2
O or >160
cmH
2
O).
Pressure relief valve test (test 9): at
an oxygen flow of 1 LPM, the
exhalation pressure transducer (PT2)
should measure a pressure between
120-160 cmH
2
O. This code
indicates that PT2 measured <120
cmH
2
O or >160 cmH
2
O (but <170
cmH
2
O).
1. Check pressure relief valve (Chapter
5) and adjust if necessary.
2. Replace pressure relief valve.
3. Replace sensor PCB.
4. Replace analog PCB.
3123 Oxygen cracking flow out of range
(<0.7 LPM or >1.3 LPM).
Pressure relief valve test (test 9): the
oxygen flow sensor (FS2) should
measure a flow of 1 LPM. This code
indicates that FS2 measured <0.7
LPM or >1.3 LPM.
1. Replace oxygen valve assembly.
2. Replace oxygen flow sensor.
3. Replace sensor PCB.
3125 Difference between air flow sensor
and exhalation flow sensor during air
delivery test 8.
Patient circuit test (test 11):
pressure measured by the inspiratory
pressure transducer (PT3) and the
exhalation transducer (PT2) are
sampled, averaged and compared.
This code indicates that
measurement difference was >3
cmH
2
O.
1. Check air and exhalation flows
(Chapter 5) and replace flow
sensor(s) as necessary.
2. Replace sensor PCB.
3. Replace analog PCB.
4. Replace main PCB.
3126 Difference (>20 LPM) between
oxygen flow sensor and exhalation
flow sensor.
Oxygen delivery test (test 6): an
oxygen flow rate of 150 LPM is
established and compared to the
exhalation flow sensor (FS3)
reading. This code indicates that
FS3 measurement difference was
>20 LPM.
1. Check oxygen and exhalation flows
(Chapter 5) and replace flow
sensor(s) as necessary.
2. Replace sensor PCB.
3. Replace analog PCB.
4. Replace main PCB.
Diagnostic
Code Code Description Recommended Repair