ADS Environmental Services Model 4000 530017 A0 - Manual (Page 6)

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C H A P T E R 1
Introduction
The ADS Model 4000  long-term flow monitor measures open
channel flow in sanitary sewers, storm sewers, pump stations, and
other environments to assist municipalities and other industry in
addressing the following issues:
Planning sewer systems (sizing and rehabilitation)
Reducing infiltration and inflow (I/I)
Monitoring combined sewer overflows (CSOs)
Detecting and monitoring surcharges
Billing
Monitoring sewage handling facilities (wastewater treatment
plants and pump stations)
The battery-powered, microprocessor-based 4000 monitor displays
exceptional accuracy and reliability in measuring flow depth and
velocity to determine flow rate (quantity) in sewer lines. This flow
data is the essential element required to successfully perform
investigative, analytical, and reporting activities. The 4000 also
supports water quality sampling, event notification, and rain
measurement.
The 4000 monitor uses three flow measurement devices to gather
raw flow data: a quadredundant ultrasonic depth sensor, a pressure
depth sensor, and a Doppler peak velocity sensor. The ultrasonic
and pressure depth sensors apply independent measurement
techniques to collect information used in flow depth calculations.