ADS Environmental Services FlowShark QR 775003 A2 - Manual (Page 58)

3-1
C H A P T E R 3
Sensor Installation and
Connection
The ADS ® FlowShark ® IS flow monitor and sensors are primarily
designed for monitoring flow in sanitary, storm, and combined
sewers. The monitor mounts to the manhole rim or wall slightly
below the manhole cover.
A sewer system’s hydraulics are much more stable and uniform in
the incoming pipe than in the manhole invert or outgoing pipe.
Therefore, the sensors mount to a stainless steel expandable ring or
stainless steel bands installed in the sewer pipe a short distance
upstream from the manhole invert. Installing the sensors upstream
minimizes the hydraulic effects and erroneous data readings caused
by foamy waters, waves in the flow, sewer noise, non-laminar flow,
and obstructions in the manhole.
Following is the basic procedure for installing the FlowShark IS
sensors at a location:
 Investigate the Site Characteristics These characteristics
include pipe size and shape, silt level, flow depth, and
hydraulic conditions.
 Install the Sensors in the Pipe This process primarily
includes assembling the ring (for standard installations) or
preparing the bands (for special installations) to which the
sensors attach, securing the sensor cables to the ring or band,
and installing the ring or bands in the pipe.