SOMMER SPA-2, Manual

Page: 58 / 111

2. In the Commander open SPA, sensor table in the Technics menu.
3. Click Test sensor . The SPA-2 performs a measurement and displays the results in a pup-up win-
dow.
The C-values at both frequencies should increase by 100 ±10 pF, i.e. reach 183 pF. The fraction of
water must remain at 0%!
If the C-values are outside these limits, perform a zero-adjustment and repeat the measurement
with the reference plate. Should the C-values still deviate too much please contact Sommer Mess-
technik.
10.4.5 Adjustment of snow depth measurement
With the function Snow depth test the current snow depth measurement of the ultrasonic level
sensor can be tested. In case the result of this test deviates from the real snow depth, it can be
adjusted with
Snow depth adjust . This function initiates a measurement and then requests the
actual level.
ATTENTION It is recommended to adjust the snow depth measurement at a
time without a snow cover.
10
C
o
n
fig
u
ra
ti
o
n
58 Manual