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3.7 Climate Station Pre-installation Preparations

Once a suitable location for the climate station has been found, preparations need to be made to

the terrain before the infrastructure and the sensors are installed. These guidelines apply to the

main climate station.

Clear the terrain: Clear a small core area (60-65 m

) where the climate station with all its

instrumentation will be installed. This area could be circular or rectangular, but most

importantly, it needs to be devoid of all vegetation, with a very short layer of grass or whichever

the natural substrate is in the area; no rock, asphalt or cement.

3.8 Tripod Installation

Assemble the CM10 tripod kit as described in the manual supplied by Campbell (also online at

http://www.campbellsci.com/documents/manuals/cm10k.pdf).

3.9 Grounding

PROPER GROUNDING IS CRITICAL TO PROTECT THE INTEGRITY OF ALL THE

EQUIPMENT against lighting strikes. First drive the grounding rod into the ground as far as it

will go next to the base of the tower (about half a meter away) using a sledgehammer. At most,

there should only be 3 or 4 centimeters of the rod visible above ground. Attach one end of

the ground cable (4 AWG wire) to the rod and then route the cable and attach to the tower leg

using the clamp. Route the green (12 AWG ) wire upwards to where the instrument enclosure

will be installed (see more details in page 2-3 of the UT10 manual). See Section 3.18 for details

on grounding the enclosure and the data logger.

3.10 Installing the Data Logger and Battery

Equipment/supplies needed:

• Wrench

• Screwdriver

• Data Logger (CR1000)

• Enclosure (ENC 14/16-C)

• Battery (UB121000)

• Plastic/metal container

Data logger: The data logger (CR1000) should be installed in a weather resistant enclosure that

is attached to the side of the tripod (ENC 14/16-C). First install the data logger into the enclosure

and then attach the enclosure to the tripod. The data logger should be mounted low in the

enclosure and secured to the backplate with 4 screws. This should leave plenty of space below

the data logger for the incoming cables from the sensors and power source as well as the ground

cable. The enclosure can be mounted to the tripod by using the attached mounting brackets.

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Campbell CM10K Spezifikationen Seite 25