SOM - soil oxygen meter
The soil oxygen meter (SOM) is used to measure root respiration and detects the oxygen content of the soil in %. An auger drill is used to prepare a hole in the soil into which the sensor is placed.
The oxygen meters are generally placed at vertical internals of 20 to 50 cm to establish a vertical profile of the oxygen content of the soil.
Advantages
- Simple set-up
- Automatic temperature compensation
- No influence of rain/water
- Simple calibration by user
- No zero point calibration required
Technical specifications
| Measurement principle: | Galvanic battery + porous membrane sheet |
| Dimensions/weight: | Diameter 35 mm, length 65 mm (cable connector length 50 mm)/ 220 grammes (incl. 3 m cable) |
| Output signal: | 45 ... 65 mV at 20.9 % O2 |
| Cable length: | 3 m |
| Temperature influence: | At relative humidity 100 % and O2 20.9 % Sensor output: 20.8 % at 5 °C, 19.4 % at 40 °C At relative humidity 0 % and O2 20.9 % Sensor output not influenced by temperature |
| Temperature range: | 0 ... 40 °C in operation |
Ordering Details:
| Art.-Nr.: 115008 | SOM - soil oxygen meter |
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