Vaisala WMS302 Guía de usuario Pagina 88

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User's Guide ______________________________________________________________________
86 ___________________________________________________________________M210630EN-B
Soil/Water Temperature Sensors
Installation Procedure for QMT103/
QMT110
The QMT103/QMT110 sensor has the cable with the connector. The
length of the cable defines the maximum distance from the logger. You
can install the sensor either in soil or in water.
1. Choose a desired location for the sensor. Assure that the sensor is
located within cable length of the logger enclosure.
2. To install the sensor in the soil:
a. Make a hole with a shovel to a depth a little deeper than
desired installation depth of the sensor.
b. To get good sensor contact with the soil, position the sensor
horizontally into the hole and push the sensor into the wall of
the hole to the desired depth until set firmly.
c. Fill the hole with the digged soil.
d. Connect the cable to the logger enclosure.
3. To install the sensor in water:
a. Make a solid base for the sensor to the desired installation
depth in water.
b. Position the sensor firmly to the base.
c. Connect the cable to the logger enclosure.
Installation Procedure for QMT107
During a typical installation, the QMT107 sensor is pressed into pre-
formed holes, but it can also be placed into excavated hole that is then
filled. On hard or rocky ground, a pilot hole is pre-formed with an auger
rod.
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