Optical Oxygen Gas Sensor - FDO2
- High accuracy
- Low drift
- Factory calibrated
- Long life, non-depleting
- Fast response (t63< 2s)
- Digital output of oxygen partial pressure
- Temperature compensated
- Low power consumption
- Lead free
BrochureThe FDO2 is an optical oxygen sensor for gas measurements based on luminescence quenching of a sensor dye. The dye is excited with red light, and the properties of the resulting luminescence are measured in the near infrared. The presence of molecular oxygen quenches the luminescence, changing its intensity and lifetime fully reversibly. This principle is very robust. It shows virtually no interferences to other gases. It does not deplete over time, unlike galvanic oxygen sensors with their limited shelf life. Optics and electronics are hermetically sealed from the measured gas. The sensor has a factory calibration. The FDO2 features build in temperature compensation and a digital interface that provides oxygen partial pressure values. No additional signal conditioning is necessary. A mounting thread and a robust locking connector allow easy installation.
Applications
- Incubators
- Oxygen concentrators
- Inert gas processing chambers (glove boxes)
- Exhaust gas measurement
- Inert gas monitoring
- Portable equipment
- Respirators
- Monitoring fruit ripening and transport
Available Items
| Item No. | Description | Pricing in EU* |
|---|---|---|
| FDO2 | Optical oxygen meter FDO2 for the gas phase, OEM module with UART interface | on request |
| FD-FTC | Flow-through-cell for FDO2 | on request |
| FDO2-USB | USB Interface Cable for FDO2 | on request |
* Only EU-Prices shown. Contact us for pricing outside EU. Not for resale.
Specifications
| Typical measuring range (ppO) | 0-500 hPa ( 0-50%O2) |
| Max. measuring range (ppO) | 0-2000 hPa |
| Accuracy @ 10°C – 40°C | ±0.2 hPa at 10 hPa / ±5 hPa at 200 hPa |
| Resolution | ±0.1 hPa at 10 hPa / ±1 hPa at 200 hPa |
| Detection limit | 0.1 hPa (0.01%O2) |
| Response time (t63) | < 2 sec. |
| Drift @ 25°C | <1% O2 / year at 20% O2 |
| Minimum lifetime | >50,000,000 measurements |
| Emmission wavelength | 760 nm (NIR) |
| Storage life | >5 years in darkness at 20°C |
| Temperature range during operation | -10 to 60°C |
| Temperature range during storage | -40°C to 60°C |
| Maximum absolute pressure | 20 bar |
| Maximum differential pressure | 3 bar |
| Max rel. humidity | Non condensing conditions |
| Supply Voltage | 3.3 – 5.0 V DC |
| Standby Current | ca. 8 mA |
| Communication Interface | 3.0 V UART (5 V tolerant) |
| Connector | Molex 560020-0420 |