Campbell Scientific CM6/CM10 Tripod Weather Station Installation - Manual (Page 52)

Section 4. Sensor Installation
4.12.2.1 Reference Point
The front grill on the ultrasonic transducer is used for the reference for the
distance values. Because it is difficult to measure from the grill one can use
the outer edge of the plastic transducer housing see Figure 4.12-2. If this edge
is used, simply add 8mm to the measured distance.
FIGURE 4.12-2. Distance from Edge of Transducer Housing to Grill
4.12.3 Mounting Options
There are two standard mounting options available for the SR50A sensor.
The first is the SR50A Mounting Kit, part number 19517. This bracket is used
to mount the SR50A to a CM206 crossarm or a pipe with a 1” to 1.75” OD.
Figures 4.12-3 and 4.12-4 show a couple of angles of the SR50A mounted to a
crossarm. A u-bolt attaches the bracket to the crossarm and two screws attach
the SR50A to the bracket.
Another mounting option shown in Figure 4.12-5 utilizes a mounting stem
(part number 19484) and a NU-RAIL. The mounting stem is sized to fit a 1”
NU-RAIL (#1049). This mounting method was used for the SR50
(predecessor to the SR50A ) and the stem can be used to fit the SR50A into
existing SR50 mounts.
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