7.4
Mounting
1. Slide the USH-9 over the mounting tube and tighten the U-bolt.
For accurate measurements the USH-9 should be mounted within ±6° perpendicular to the
snow/ ground surface.
ATTENTION
If the measurement spot is sloping, make sure the USH-9 is mounted per-
pendicular to the snow/ground surface! Also, do not install the USH-9 on
a horizontal podium in the slope!
Never tilt the USH-9 towards the base of the mast as this can cause
unwanted reflections. To avoid such a situation, consider rotating the
mast or selecting another measurement spot.
NOTE
The distance between the USH-9 and the snow surface should be
>2 m. This ensures that precipitation can be detected properly and the
rate of change filter operates correctly.
2. Connect the signal cable to the USH-9 and route it to the location of the data acquisition unit.
Fix the cable with cable ties.
7.5
Wiring
7.5.1 RS-485
Connect the USH-9 to a data logger or RS-485 network according to the figure below.
7
In
st
al
la
ti
o
n
22
Manual
