ADS 507165, Installation, Operation And Maintenance Manual

Page: 256 / 535

5-50 ADS Manual
(edge opposite cable tie holes). 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 7/32-inch (3-mm) drill
bit.
4. ( applies only to AV|Gated, AV|Max orPeak Combo when
mounting the sensor between 15 and 30 degrees up the side of
the pipe
) Use the Silt Mount Adapter (ADS p/n 8000-0271) to
attach the sensor to the band in the following way:
‰ Seat the AV|Gated, AV|Max or Peak Combo sensor onto
the slightly elevated portion of the top of the silt mount
adapter. The elevated portion of the adapter should insert
easily into the inset portion of the bottom of the sensor.
Orient the sensor so that the sensor cable is exiting the
sharp, or
wedged , side of the adapter.
‰ From the bottom of the adapter, use two M3 x 10mm
stainless steel flathead screws (
do not substitute any other
screws ) to secure the sensor to the adapter. The predrilled
screw holes in the adapter and in the bottom of the sensor
should be in alignment if the sensor is seated properly on
the adapter.
‰ Use two M3 x 10mm stainless steel flathead screws ( do
not substitute any other screws ) to secure the adapter to
the band at the appropriate location on the band to ensure
the sensor will be positioned between 15 and 30 degrees
up the side of the pipe (7:00 position) and below the flow
surface once installed. The nose of the sensor should be
facing the same direction as the upstream edge of the band.
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 5-52.
6. Place the band in the pipe upstream at least 12 inches (305
mm) 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.