ZOLL EMV+ - Troubleshooting Oxygen System Calibrations

Ventilator & Calibration Troubleshooting
906-0731-04-01 Rev. C ZOLL Ventilator Service Manual 6–21
Troubleshooting — Oxygen System Calibrations
Remote Calibration System
Discrete Tests Test Purpose/ Definition Troubleshooting
O2 Kickstart
Calibration
Calibrates near zero flow target used for
fine flow control after opening valve.
(range: 50 - 900)
• Typical failures are with the Oxygen Delivery
System. Gas flow is critical.
• If gas flow is restricted this test may not successfully
calibrate.
• Check the gas regulator to ensure tank is fully open.
• Check set up
• Replace Oxygen valve assembly kit.
O2 Kick Start
Check
Deliver 50 ml breath using 100% FiO2
O2 Flow
Calibration
• OF_Offset
• (range: 26053 - 37516)
• OF_Gain
• (range: 12727 - 34650)
• Check set up
• Gain Too Low – clean flow screens and re-install.
Check diffuser screen is present in assembly.
• Gain Too High – check test setup and assembly for
leaks, then recalibrate. If issue persists, check
assembly to ensure O-rings were installed on either
side of the flow screen and diffuser screen is
properly installed.
• Replace the SPM/Vent assembly kit.
Flow Calibration
Check
Compares selected flow values to published
specifications (incoming), or tighter
(outgoing) to allow for drift.
Ventilator Alarms
Title Service
Code
Alarm Purpose Troubleshooting
Self-Check: Transducers/ Calibration Files
Self Check Failure /
Self Check Fault
1010
2010
O2 Valve Stuck Open
• Connect O2, listen for flow.
• If no flow can be heard, recalibrate device.
• Replace O2 Valve
Self Check Failure /
Self Check Fault
1011
2011
Control fault to indicate
Insufficient O2 Flow rate.
• Recalibrate device
• Check manifold for leaks
• Replace O2 Valve
• Check Flow Screen Assembly, clean and replace.
Self Check Failure 1012 PGA or ADC faults detected
for O2 System.
• Recalibrate Device
• Replace SPM
Low 02 Supply Failure /
Low 02 Supply Fault
1020
2020
Oxygen Tank Pressure low
(less than 35 psig)
• Reduce O2 Supply Pressure
• Power Cycle Device
• Check Oxygen Regulator
• Replace SPM if Supply Pressure is verified to be
below 87 psig.
High 02 Supply Failure 1041
2041
Oxygen tank pressure is
excessive (greater than 87
psig)
• Reduce O2 Supply Pressure
• Power Cycle Device
• Check Oxygen Regulator
• Replace SPM if Supply Pressure is verified to be
below 87 psig.
Self Check Failure 1174 Flow transducers are not
behaving as expected.
• Change SPM board
Self Check Failure 1176 Checks for a corrupted
calibration file.
• Calibration required.
Observations
Observation Resolution