ADS Environmental Services FlowShark QR 775003 A2 - Manual (Page 43)

2-1
C H A P T E R 2
System Overview
The ADS ® FlowShark ® IS flow monitor uses three flow
measurement devices to gather raw flow data: a quadredundant,
intrinsically-safe (IS) ultrasonic depth sensor; an IS pressure depth
sensor; and an IS Doppler peak velocity sensor. The IS ultrasonic
and pressure depth sensors apply independent measurement
techniques to collect information used in flow depth calculations.
The IS Doppler velocity sensor gathers peak flow velocity data.
The monitor receives the raw flow depth and velocity data from the
sensors based on a defined time interval and then processes the
data, which may involve calculating the flow rate. The monitor
memory can store over 140 days of data logged at a 15-minute
sample rate. This data is available to the user for collection, further
processing, analysis, and reporting. These reports can assist
municipalities and other industry in planning improvements and
additions to sewer systems, improving the accuracy of billing
information, and providing information for the overall management
of sewer systems.
The FlowShark IS monitor and sensors are primarily designed for
monitoring flow in sanitary and storm sewers. The monitor mounts
to the manhole rim or wall slightly below the manhole cover; the
sensors typically attach to a ring installed in the sewer pipe a short
distance upstream from the manhole invert. The FlowShark IS
monitor can support one of each sensor type. These sensors display
exceptional durability and accuracy, even under harsh and turbulent
flow monitoring conditions.