Ventilator & Calibration Troubleshooting
6–12 www.zoll.com 906-0731-04-01 Rev. C
Troubleshooting — Pulse Oximeter Subsystem
Remote Calibration System
Discrete Tests Test Purpose/ Definition Troubleshooting
Pulse Oximeter SpO2
and Heart Rate
A Masimo tester is used to confirm SpO2 and
HR measurements are within the limits
specified below:
1) Waveform data is present.
2) Heart Rate is 61 BPM ± 1 BPM
3) SpO2 is 81% ± 3%.
• Review active service codes refer to the Service
code troubleshooting sheet
• 1) Waveform data is present
• Check the SPO2 simulator connections and settings.
• 2) Heart Rate is 61 BPM ± 1 BPM
• Check the SPO2 simulator connections and settings
• 3) SpO2 is 81% ± 3%.
• Check the SPO2 simulator, connections and settings
• If these items fail the front panel assembly kit may
be faulty
Ventilator Alarms
Title Service
Code
Alarm Purpose Troubleshooting
Self-Check: Pulse Ox - Module Failure
Internal OEM Board 2300
3300
The Masimo board indicates a
failure.
• Replace CPU/SPO2 Stack kit or Front Panel
Assembly.
Internal COMM 2301
3301
2301: Masimo comm has a
tread out or is damaged.
3301: Alarm priority,
depending if the Masimo
sensor is in use.
• Check Masimo cable or board.
• Disable and enable spo2 functionality
Observations
Observation Resolution
SPO2 readings are not displayed or SPO2 sensor LEDs do
not illuminate.
• Replace sensor and cable with a new and known
working cable/sensor set.
• Replace Masimo board.