User's Guide ______________________________________________________________________
86 __________________________________________________________________ M211296EN-A
Installing Soil Temperature Sensor QMT110
Vaisala Soil Temperature Probe QMT110 is used for precision
measurement of ground and soil temperatures. In AWS330, you can have
up to two QMT110 sensors.
1. Choose a desired location for the sensor. Measurement site should
be undisturbed ground, 1 m², and typical of the surface of interest.
The ground surface should be level with respect to the immediate
(10 m radius) area.
2. Make a hole with a shovel to a depth slightly deeper than the
desired installation depth of the sensor.
3. To have good sensor contact with the soil, push the sensor into the
wall of the hole horizontally until set firmly.
4. Fill the hole with the dug-up soil.
5. Connect the sensor cable to the Soil T1 connector on the bottom of
the enclosure. For two QMT110 sensors, use the Soil T2 connector
as well; see section Connecting Sensor Cables on page 97.
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Figure 44 Installing Soil Temperature Sensor QMT110
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