The Drager 6850645 oxygen sensor is a new electrochemical O2 sensor capsule (oxygen cell) that measures the inspired oxygen concentration (FiO2) inside Drager ventilators and anaesthesia workstations. Identified by REF 6850645, it is the replacement O2 cell for the Drager Evita 2, Evita 4, Evita XL and Fabius, and is supplied sealed in its protective container ready for installation.
Why Choose the Drager 6850645 O2 Sensor
- Exact part-number match REF 6850645 is printed on the capsule label, so biomedical teams can order with confidence.
- Restores accurate FiO2 monitoring fresh oxygen cell resolves “O2 sensor exhausted” and failed O2 calibration messages.
- Sealed for freshness each sensor is packed in an individual foil-lidded container that protects the cell until use.
- Drop-in replacement fits the O2 sensor housing of the listed Drager devices with no modification.
- New condition unused sensor with the use-by date shown on the container label.
Key Features of the Drager Oxygen Sensor Capsule
- Electrochemical (galvanic) oxygen measuring cell
- Compact cylindrical capsule with metal mesh gas inlet
- Dräger O2-Sensor branding, REF and data-matrix code on the label
- Individually sealed storage container marked with the storage temperature symbol
- Measures oxygen concentration in breathing gas for display and alarm functions
Drager 6850645 Oxygen Sensor Specifications
| Specification | Detail |
|---|---|
| Product | Oxygen sensor / O2 sensor capsule |
| Brand on product | Dräger |
| Part number (REF) | 6850645 |
| Sensor type | Electrochemical oxygen cell |
| Measured gas | Oxygen (O2) |
| Function | Inspired oxygen (FiO2) measurement |
| Works with | Drager Evita 2, Evita 4, Evita XL, Fabius |
| Packaging | Individually sealed container |
| Quantity | 1 sensor |
| Condition | New |
Works With These Drager Devices
- Drager Evita 2 ventilator
- Drager Evita 4 ventilator
- Drager Evita XL ventilator
- Drager Fabius anaesthesia machine
Always confirm the O2 sensor part number in your device’s instructions for use or on the sensor currently fitted before ordering.
Use Cases for This Ventilator O2 Cell
- Scheduled replacement of an exhausted oxygen sensor during preventive maintenance
- Correcting O2 calibration failures or drifting FiO2 readings
- Stocking a spare O2 cell for ICU, theatre and biomedical engineering departments
- Returning refurbished Evita and Fabius units to service
Installation and Handling Tips
- Keep the sensor sealed in its container until you are ready to fit it.
- Store within the temperature range shown on the container and use before the printed date.
- After fitting, allow the sensor to stabilise and perform an O2 calibration as described in the device manual.
- Dispose of used oxygen cells according to local regulations for electrochemical sensors.
Frequently Asked Questions
What is the Drager 6850645 oxygen sensor used for?
It is the O2 sensor capsule that measures oxygen concentration in the breathing gas of Drager ventilators and anaesthesia machines, allowing the device to display and alarm on FiO2.
Which machines does the Drager 6850645 O2 sensor fit?
It works with the Drager Evita 2, Evita 4, Evita XL and Fabius. Check your device manual to confirm REF 6850645 is specified.
When should a Drager oxygen cell be replaced?
Replace it when the device can no longer calibrate the O2 sensor, when it reports the sensor as exhausted, or at the interval set out in your maintenance schedule.
Is this oxygen sensor new?
Yes. The sensor is new, unused and delivered in its sealed protective container.
Do I need to calibrate after replacing the O2 sensor?
Yes. Perform the O2 calibration routine described in the device’s instructions for use after installing a new sensor.
How many sensors are included?
One Drager 6850645 oxygen sensor is included per order.
Related Drager Parts
Complete your service kit with the Drager MX01049 Oxytrace O2 sensor for Savina, the Drager 8416012 flow sensor cable harness, the Drager 8608442 flow sensor cable for Fabius, the Drager 8415290 Evita battery and the Draeger 8415127 particle filter.
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