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While working with sensor, please, make sure you are not pressing it too hard. The sensitive
base may strike of vertical movement mechanical stopper. It may cause the unwanted noise in
headphones and distorted signal. The distortion of signal may happen when sensitive base is
placed incorrectly due to roughness of ground surface. When placing the sensor, choose as flat
surface as possible.
When working on soft soil or in high grass or snow, use removable rods.
The rods are installed and removed manually. If necessary Allen keys (supplied) can be used to
install and remove the rods. (one key is put into the hole of the rod, the second – into the hole in
the base of sensor to prevent cranking of the base and damaging of the sensor)
WARNING! Using one key to install the rod is prohibited!
When using the rods, please, make sure that protective cuff fully touches the surface of the
ground. This helps to exclude the influence of unwanted noise. (Pic. 3.1).
If it is impossible to place the cuff so it fully touched the ground, provide as much silence as
possible. (Pic.3.2).
Indicated useful signal level fully depends on the position of the sensor. Comparison of signal
levels can be done only when the sensor is placed in multiple points at similar conditions..
Moreover, the signal level in each point should be measured several times and average value
should be considered as true.
Some elements of sensor are made of rubber, that is why it is restricted to clean the sensor with
sharp tools. It is also restricted to bash the sensor over hard surfaces in order to clean it off the
dirt. In order to clean the sensor rinse some water on it.
Pic. 3.1
7
Pic. 3.2
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