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Cindy HopkinsSep 8, 2025
What causes the FRESH GAS ? alarm on Dräger Cato, and how can I resolve it?
- RrogerraySep 8, 2025
If fresh gas in manual ventilation bag is too little, increase the fresh gas flow and repair any leaks in the hose system.

What causes the FRESH GAS ? alarm on Dräger Cato, and how can I resolve it?
If fresh gas in manual ventilation bag is too little, increase the fresh gas flow and repair any leaks in the hose system.
What does PAW NEGATIVE mean on my Dräger Medical Equipment and how do I fix it?
If a negative airway pressure is measured, check the hose system and tube on the ventilator.
How do I fix the % O2 ERR alarm on my Dräger Cato?
If the sensor for inspiratory O2 measurement is incorrectly calibrated, calibrate the sensor. If the sensor was changed and/or not calibrated, replace and calibrate the cell. If the sensor is not plugged in, plug in the sensor connector. If the sensor lead is defective, replace the sensor housing. If a non-Dräger sensor cell is used, use an original sensor cell.
What does AGT NOT SEL mean on Dräger Cato Medical Equipment and how to resolve it?
If the anaesthetic agent is not selected or the selection differs from that detected by Vapor identification, check and select the anaesthetic agent.
How to fix INSP CO2 HI alarm on Dräger Cato?
If the inspiratory CO2 concentration is above the upper alarm limit of 5 mmHg, replace the soda lime in the circle system of the anaesthetic workstation.
What to do if CO2 LINE BLK alarm appears on Dräger Cato?
If the sample line is blocked, replace the sample line and water trap if necessary.
| Type | Anesthesia Workstation |
|---|---|
| Tidal Volume Range | 20 to 1400 ml |
| PEEP | 0 to 20 cmH2O |
| Gas Supply | O2, N2O, Air |
| Integrated Monitoring | Yes |
| Power Supply | 100 - 240 V AC, 50/60 Hz |
| Usage | Operating Room |
| Ventilation Modes | Volume Controlled |
| Vaporizer Mounts | Up to 2 |
| Alarms | Gas Supply Failure |











