Vaisala WMS302 Betriebsanweisung PDF herunterladen (Seite 95)

Chapter 4 _______________________________________________________________ Installation

VAISALA_______________________________________________________________________ 93

c. When several sensors are buried, refer to Figure 82 on page 93

for finalized installation.

0105-088

Figure 82 Buried ML2x Sensors

d. Fill the hole with the digged soil.

3. Pull the sensor cable(s) close to the logger enclosure.

4. Connect the signal cable to the applicable connector of the logger.

If you have purchased a sensor without factory made connectors,

see Wiring Instructions in the Technical Data chapter.

Soil Moisture Sensor

The probe can be oriented in any direction. However, orienting the flat

side perpendicular to the surface of the soil will minimize effects on

downward water movement. You can install the ECH2O-M3 sensor

either shallow or deep:

1. For shallow installations:

a. Simply cut a pilot hole in the soil using a shovel or flat blade

that is approximately the thickness of the probe.

b. Saturate the hole with water and insert the ECH2O-M3 sensor

in the soil at the desired position, making sure the probe is

oriented such that the flat side is perpindicular to the surface

of the soil and make sure the entire length of the probe is

covered.

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Vaisala WMS302 Betriebsanweisung Seite 95