Lufft SHM31 User Manual

Communication over UMB-ASCII 2.0
36 Snow depth sensor SHM 31, V2.1
UAA 0 RW
Use Accelerometer Angle
Choose tilt angle mode,
0=use reference angle “AAN”,
1=use currently measured
value of the inclination
sensor.
MSD 0,02 RW
Maximal SnowDepth
Difference
Maximally allowed difference
between two snow depth
measurements. The factory
set value is 0.02 m. During
installation it is recommended
to set the value to 10 m to
simplify the installation and
prevent errors
E65/ E66. After
installation the value can be
set back to 0,02 (=2 cm if
sf=1). This corresponds to a
sensible snow depth change
rate of 2 cm per minute.
MSA 600 RW
Maximal SnowDepth
Acceptance time
Time after which the new
snow depth is accepted
although the difference was
greater than “MSD“.
Table 11: ASCII parameters for the algorithms

Lufft SHM31 Specifications

General

Brand	Lufft
Model	SHM31
Category	Accessories
Language	English