To Next Page
J
Jack JacksonJul 25, 2025
What to do if AC power is not connected to my Puritan Bennett 840?
- JjacksonkiaraJul 25, 2025
If the AC power is not connected, verify that the AC power is properly connected to your Puritan Bennett Fan.
What to do if AC power is not connected to my Puritan Bennett 840?
If the AC power is not connected, verify that the AC power is properly connected to your Puritan Bennett Fan.
What to do if no air is connected to my Puritan Bennett 840?
If no air is connected to your Puritan Bennett Fan, verify that the air supply is connected.
What to do if no oxygen is connected to my Puritan Bennett 840 Fan?
If no oxygen is connected to your Puritan Bennett Fan, verify that the oxygen supply is connected.
What to do if the air offset is out of range on my Puritan Bennett 840?
If the air offset is out of range on your Puritan Bennett Fan: 1. Replace the air flow sensor (Q2). 2. Replace the exhalation flow sensor (Q3). 3. Replace the AI PCB.
What to do if the oxygen offset is out of range on my Puritan Bennett 840 Fan?
If the oxygen offset is out of range on your Puritan Bennett Fan: 1. Replace the oxygen flow sensor (Q1). 2. Replace the exhalation flow sensor (Q3). 3. Replace the AI PCB.
What to do if AC power is not connected to Puritan Bennett 840 Fan?
If the AC power is not connected, ensure the AC power is properly connected. Inspect the connector on the AC blindmate cable, and if needed, replace the cable. If the issue persists, replace the power supply.
How to fix Puritan Bennett 840 Fan when it cannot achieve minimum air flow?
If the Puritan Bennett Fan cannot achieve minimum air flow, monitor the air pressure at TP2 using regulator calibration hose P/N 4-079050-00 to ensure adequate supply pressure. Try swapping the air PSOL (PSOL2) and oxygen PSOL (PSOL1). If calibration passes, replace PSOL2. Next, swap the air flow sensor (Q2) and oxygen flow sensor (Q1); if calibration passes, replace Q2. Try installing a known good inspiratory module; if calibration passes, replace the inspiratory electronics PCB. If calibration fails, replace the inspiratory module blindmate cable. If problem persists, replace expiratory flow sensor (Q3), and finally replace the AI PCB.
General| Type | Ventilator |
|---|---|
| Flow Rate | Up to 180 L/min |
| Power Requirements | 100-240 VAC, 50/60 Hz |
| Display | Color LCD Touchscreen |
| Category | Critical Care |
| Manufacturer | Medtronic |
| Model | 840 |
| Operating Modes | Assist/Control, SIMV, Spontaneous, BiLevel |
| FiO2 Range | 21 to 100% |
| PEEP/CPAP Range | 0-45 cmH2O |
| Alarms | High/Low Pressure, High/Low Volume, Apnea, High Respiratory Rate |
| Power Source | AC Power |
| Data Connectivity | RS-232 |
| Compliance | ISO 80601-2-12 |