The optical oxygen sensor 3085-O2 for gas measurements contains a sensor, which is based on luminescence quenching of a sensor dye. Molecular oxygen reversibly quenches the luminescence. This principle is very robust, has a very low drift and has virtually no interferences to other gases. Optics and electronics are sealed from the measured gas. Typically, the factory calibration is sufficient during lifetime of the sensor. The signal is temperature compensated.
Range
typical 0 - 50 kPa O2, maximal 0-200 kPa O2
Accuracy (10°C to 40 °C)
±0.02 kPa at 1 kPa; ±0.5 kPa at 20 kPa
(±0.02% O2 at 1%O2; ±0.5%O2 at 20%O2)
Operating temperature
-10°C to 60°C
Detection limit
10 Pa (0.01% O2)
T63 response time
< 2s
Drift@25°C
< 1% O2 / year at 20% O2
Minimum lifetime
> 50 000 000 measurements (1 meas./s)
Storage life
> 5 years in darkness at 20°C
Connector
USB
Supply voltage
3.3-5V supplied via USB
Current
8-10 mA
Weight
160 g
Dimensions
body: 8 cm x 5 cm x 5 cm
with rolled-up cable: 8 cm x 15 cm x 5 cm