ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 100)

Sensor Installation and Connection 3-41
Run the sensor cables from the sensor location in the pipe to the
monitor location in the manhole according to the instructions in
Securing the Sensor Cables in the Pipe and Manhole on page 3-53.
½-Band Mount
Perform the following procedure to mount the Peak Combo Sensor
or Slimline Peak Combo Sensor in a pipe using the ½-band mount:
1. Use a hacksaw to cut the band to the appropriate length. Cut
the band so that, when installed, it will run almost completely
down the left side of the pipe.
2. Determine the best location on the band to mount the sensor.
The sensor should mount as close as possible to the bottom
(end) of the band, making sure the sensor will be both above
the silt level and below the flow surface once installed. It also
must not be more than 15
° from the bottom center of the pipe.
3. Mount the sensor onto the inside of the band with two M3 x
10-mm countersink screws, making sure the tapered, stepped
end of the sensor faces the upstream edge of the ring (edge
opposite the cable tie holes).
4. If mounting holes do not exist on the band at or near the
desired mounting location for the sensor, drill holes in the band
using a 3-mm drill bit.
5. Secure the sensor cables along the downstream edge of the
band according to the instructions in Securing the Cables to the
Band on page 3-43.
6. Place the band in the pipe upstream at least 305 mm (same
distance as Surface Combo Sensor or Ultrasonic Depth Sensor,
when present) from the manhole invert. Position the band on
the left side of the pipe so that the sensors will remain below
the flow surface (during minimum flows) and above the silt
level.
7. Orient the band so that one of the pre-drilled anchor bolt holes
is just above the flow surface.