User Manual SPA Snow Pack Analyser
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5. Necessary parameter adjustments after assembly
5.1. Snow depth
The actual snow depth offset is adjusted in Main menu
Analog input
Snow depth adjustment.
5.2. Displacement offset / Length correction
This step applies only for SPA's which include a potentiometer.
Fig. 15: SPA with potentiometer
Fig. 16: SPA without potentiometer
A sloping SPA-sensor is installed with a spring to ensure a tight spanning and to prevent the
sensor from damages due to compression of the snow pack. This non static installation may
cause changes in the sensor position, that can be corrected by measuring the extension
length of the sensor suspension.
In delivery state the length measurement for SPA-sensor 1 is connected to the analog input 1. This
analogue input (channel) is defined for the SPA-sensor in
Main menu
Sensor_01
Input length corr .
Horizontal sensors are operated without length correction by setting the value of the Input length corr. to
“0”.
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