ADS Environmental Services ADS TRITON+ QR 775027 A3 - Manual (Page 84)

Sensor Installation and Connection 3-23
Although the spreader mechanism fits snugly against the inside of
the ring, the spreader mechanism may seem loose on the hex nuts.
Do not be concerned. The spreader mechanism will tighten once
the ring is installed and tightened inside the pipe. The following
picture displays how a properly assembled ring with the ultrasonic
depth sensor mounting plate should look.
Properly attached spreader mechanism (with Ultrasonic Depth Sensor
mounting plate on ring)
Mounting the Sensors to the Ring
The following sections provide instructions on mounting the Peak
Combo Sensor to the ring. To ensure the most accurate flow data,
standard pipe installations require proper positioning of the sensors
on the ring as well as in the pipe. When facing upstream and
viewing from the downstream edge of the ring, the sensors should
be mounted on the ring in the following locations:
 Peak Combo Sensor Mount the sensor as close as possible
to the six o’clock position (bottom), provided it is mounted
above the level of any silt present at the bottom of the pipe.
Any silt covering the sensor could interfere with the sensor
signals, potentially producing inaccurate or erroneous readings.
To avoid silt, the sensor can be rotated as much as 15 degrees
up either side of the pipe (between the 5:30 and 6:30 positions)