ADS Environmental Services Model 4000 530017 A0 - Manual (Page 13)

2-1
C H A P T E R 2
System Overview
The ADS Model 4000  flow 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.
Typical 4000 flow monitoring system installation