Chapter 4 _______________________________________________________________ Installation 
 
VAISALA_______________________________________________________________________ 85 
Installing Snow Depth Sensor IRU-9429 
Snow Depth Sensor IRU-9429 is installed on the sensor support. 
1.  Attach the installation plate (number 5 in Figure 43 below) to the 
sensor support. 
2.  Place the sensor (4) through the installation plate and fasten with 
the hose clamp (6). Use the screw that comes with the clamp and 
tighten with wrench 10 mm. 
3.  Attach the sensor cover (4) to its place using the screws (7). 
4.  Bind the cable to sensor arm with cable ties. 
5.  Connect the sensor cable to the SNOW DEPTH connector on the 
bottom of the enclosure; see section Connecting Sensor Cables on 
page 97. 
 
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Figure 43  Snow Depth Sensor IRU-9429 Installation 
The following numbers refer to Figure 43 above: 
1 = Pole m
ast 
2 = Sensor arm 
3 = Cover IRUFIXSET 
4 = Sensor IRU-9429 
5  =  Installation plate IRUFIXSET 
6  =  Hose clamp; use wrench 10 mm 
7  =  Screw M6x10 DIN912 A4, 2 pcs; use Allen key 5 mm 
8  =  Spring washer B6 DIN127 A4, 2 pcs 
9  =  Screw M6x16 DIN912 A4; use Allen key 5 mm