ZOLL EMV+ - Troubleshooting Compressor System Calibration

Ventilator & Calibration Troubleshooting
906-0731-04-01 Rev. C ZOLL Ventilator Service Manual 6–19
Troubleshooting — Compressor System Calibration
Remote Calibration System
Discrete Tests Test Purpose/ Definition Troubleshooting
Note: Within the status area or log file, the middle number indicates measured gain. Ex: 22588 < 29266 < 41168
Intake Pressure
Calibration
IP_Offset
(range: 22588 - 41168)
IP_Gain
(range: 28045 - 54968)
• Check set up
• Gain Too Low – check assembly for restrictions or
damaged filters. Check torque used in assembly of
intake.
• Gain Too High – check assembly to ensure all intake
components (filters, O-rings, etc.) have been
installed.
• Check for damaged fresh gas intake filters.
Compressor Flow
Calibration
CF_Offset
(range: 26823 - 35474)
CF_Gain
(range: 23322 - 33584)
• Check set up
• Gain Too Low – clean flow screens and re-install.
• Gain Too High – check test setup and assembly for
leaks, then recalibrate.
Calibration Check
Compressor System
Compares selected flow values to published
specifications (incoming), or tighter
(outgoing) limits to allow for drift.
Also Checks Intake Pressure, Compressor
RPM, Airway Pressure to ensure correct
compressor performance.
Airflow tolerance ± (0.1 LPM + 5% of setting)
Intake tolerance ± 15% of ADC target values
(Note: ADC target values are altitude
compensated) RPM tolerance ± 15% of RPM
target.
• Review active service codes refer to the Service
code troubleshooting sheet
• Intake assembly may not be tight replace disk filter)
• Tighten intake assembly
• RPM (caused by a leak during calibration) fails check
Anti-Asphyxia valve, then recalibrate
• low flow may be leak
• High flow, recalibrate
• filters may be dirty
• Replace filters
• anti-asphyxia valve may be faulty
• Replace ant-asphyxia valve
• Check test setup for leaks
• Compressor flow failures require re-calibration.
Ensure setup is correct during calibration.
Ventilator Alarms
Title Service
Code
Alarm Purpose Troubleshooting
Self-Check: Transducers/ Calibration Files
Self Check Failure /
Self Check Fault
1001
2001
Indicates a compressor
control fault.
• Cycle Power
• Wet/dirty flow screen
• If the device was used in a high humidity
environment, moisture may condense on the flow
screen.
• Loose compressor connection (electrical)
Self Check Failure /
Self Check Fault
1002
2002
PGA or ADC faults detected
for Compressor System.
• Recalibrate Device
• Replace SPM
Self Check Failure 1003 Alarm occurs if low RPM is
detected.
• Clean or change flow screen
• Check compressor flow
Gas Intake Failure 1030 Gas intake failure, prevents
device from delivering
sufficient flow.
• Check intake assembly for blockage
• Replace filters
Self Check Failure 1174 Flow transducers are not
behaving as expected.
• Change SPM board