User Manual SPA Snow Pack Analyser
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It is then necessary to adjust the potentiometer which measures the length displacement. Instantly after
the assembling process there is no snow cover on the sensors. Therefor the right offset adjustment is
zero:
Main menu
Analog input
Target value adjustment input_01
0
The actual value is checked with Main menu
8 Sensor_01
6 Input check
5.3. Geometric parameters
The correct calculation of the snow parameters demands the geometric situation of all included sensors.
Especially for the sloping SPA-sensor these settings are used to determine the length of the sensor in the
snow and to correct a smooth inclination of the measurement site.
Abb. 2: Geometric parameter of SPA-sensor
Numbering of the sensors
The four in different position mounted sensors are indicated with numbers from 1 to 4. For the standard
SPA the assignment is as following:
o diagonal/slope sensor = sensor 1
o horizontal, at the lowest level height (100 mm) sensor = sensor 2
o horizontal, medium level height (300 mm) sensor = sensor 3
o horizontal, at the highest level (500 mm) sensor = sensor 4
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