7.4 Mounting height
Mount the SnowVUE 10 so that the face of the transducer is at least 70 cm (27.5 in) away from the
target. However, mounting the sensor too far from the target can increase the absolute error. For
example, if your sensor is measuring snow depth in an area that will likely not exceed 1.25 m (4.1
ft), then a good height to mount the sensor could be 2.0 to 2.2 m (6.56 to 7.22 ft). Mounting the
sensor at a 4 m (13.1 ft) height could result in larger snow depth errors.
7.4.1 Reference point
The front grill on the ultrasonic transducer is used as the reference for distance values. Because of
the difficulty of measuring from the grill itself, most users measure the distance from the target to
the outer edge of the plastic transducer housing (
[p. 11]) and then add 8 mm (0.3 in) to
the measured distance.
Figure 7-2. Depth of space from edge of transducer housing to grill
7.5 Mounting
To achieve an unobstructed view for the beam, the SnowVUE 10 is typically mounted to a tripod
mast, tower leg, or user-supplied pole, using a CM206 6-ft crossarm or pipe with an outer
SnowVUE 10 Sonic Ranging Sensor
11
