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Diameter Dendrometer Large – Type DD-L2
4. Installation
4.1 Cable Extension
The standard version is delivered with 5 m cable. It can be extended up to 100 m. Cable
type 4×0.25 mm
4.2 Required tools for installation and for operation
A spanner (M3), a pair of scissors .
4.3 Mounting
4.3.1 Attach the two perforated rubber belts with the single-hole-end to the two fixation
bolts at the back-side bar of the mounting frame.
4.3.2 Firmly fix the frame at the stem/branch, by tightly wrapping the rubber belts around
the stem/branch and locking them again by slipping the desired holes of the belts on
the corresponding bolts at the back-side bar.
4.3.3 Mount the two threaded rods in the suitable spaced holes of the back plate of the
frame, by using the enclosed screws and washers and tighten them using the en-
closed socket wrench.
4.3.4 Place the front part of the frame and fix it with the screws. Place the screws for the
front plate such that the sensor rod is pushed in by about 2-3 mm. When the instal-
lation is taking place shortly before frost period, the sensor rod should be pushed in
by 5 mm. At frosts the stem diameter can shrink considerably.
4.3.5 Re-tighten all screws firmly.
4.3.6 Fix the cable onto the tree stem/branch by using the rubber cord, such that the sen-
sor is protected from any accidental pull/drag on the entire cable length. This can be
done using a rope or cable straps. Ensure there is no tension between the sensor
and cable.
4.3.7 Ensure that no rain water can run along the cable into the sensor casing.
2
with shield is recommended for extensions
Front side
2
.
Back side
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