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Installing the iMETOS with the climate sensors in the field

Solar panel, battery, temperature and relative humidity, global radiation, rain gauge and barometric pressure are part of the main system. There are usually no long cables for these sensors. Wind speed and Wind direction sensors will need a cable because they have to be mounted on the end of the pole. They normally come with 3 m cable. The soil temperature sensor is coming with 5 m cable. It has to go to the ground at the desired depth. Leaf wetness comes with 5 m cable. This sensor is mounted in the outside part of the canopy of the trees or vines or on the main body next to rain gauge.

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Convection cup and global radiation sensor are mounted on top of the holder. They are dismounted during transportation and have to be mounted after unpacking. Just push them under the 3 screws which are prepared in the housing for each of them and fix the screws with a small screwdriver.
The solar panel might be clapped down for transportation. Screw the 3 screws in and it will be clapped out. On some systems for cooler climate the solar panel can come on a separate holder. In this case please fix this holder on the mounting pole by using the clamps which have been added to the package for this purpose.
The temperature and relative humidity sensor should be mounted 2 m above the ground. This is the standard measurement for this climate factors in agricultural meteorology.
The iMETOS is mounted on the post with two clamps. Make sure that the pole is buried as straight as possible. How horizontal the climate station is mounted can be checked by the little water lens at the rain gauge.

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On northern hemisphere the solar panel should be exposed to south and the same the global radiation sensor. The wind direction sensor should point towards north and the wind speed sensor should point towards south again.
The leaf wetness sensor comes with a cable tie to be mounted on a branch of the tree or vine or on the main holder (next to the rain gauge) slightly inclinated. Please mount this sensor in a position with allows the sensor to pick up the early rain and to stay wet in shadow.
The soil temperature sensor should be buried in the ground. How deep it should be buried is depending from the goal which should be reached with the sensor. To have an impression of root growth and nitrogen mineralization in vines or apples in early spring it is best be mounted at 10 to 20 cm. It you want to assess the emergence possibilities of seeds it is depending on the sowing depth of the seed. Using it in corn (maize) would mean to mount it a 5 cm and using it for sugar beets would mean to mount it at 2 or 3 cm only. 

The wet bulb temperature sensor is mounted in the height of the lowest plant organ which should be protected from frost. Two clamps are packed with the unit to mount this sensor on the post.

Water level sensors are equipped with 15 m cable to give the sensor into the water. It is combined with a barometric pressure sensor to give the actual air pressure.

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Created by heiner. Last Modification: Friday 03 of February, 2012 13:25:03 GMT by Lena.