ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 39)

3-16 ADS FlowAlert Manual
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 should look.
Mounting the Pressure Depth Sensor to the Ring
The following section provides instructions on mounting the
pressure depth sensor to the ring. To ensure the most accurate flow
data, standard pipe installations require proper positioning of the
sensor on the ring as well as in the pipe. When facing the
downstream edge of the ring, the sensor should be mounted on the
bottom of the ring.
Proper positioning of sensor on the ring
Caution: Handle the sensor and cable with extreme care.
They contain delicate mechanisms and electronics. Keep
sharp objects away from sensor cable, and avoid stepping
or placing heavy objects on the cable during installation.
Mount the pressure depth sensor to the ring in the following way:
1. Orient the ring so that the ring’s spreader mechanism is directly
on top.