ADS Environmental Services Model 3600 530002 A2 - Manual (Page 20)

Hardware 2-5
The processor board performs many functions; it
z powers up each input board and provides each board with the parameters
required to carry out the appropriate operations,
z periodically scans the sensor interface boards and the optional rain gauge input
to retrieve and store data readings,
z outputs a discrete signal to a sampler,
z transmits the stored data to the central computer for processing by
QuadraScan software after data is collected, and
z maintains the date and time.
Sensor Interface Boards
The QS3600 flow monitor's chassis can hold up to two sensor interface subsystems:
z one Doppler velocity subsystem which consists of two boards and
z one depth subsystem which consists of one board that is used for both the
pressure depth sensor and the ultrasonic level sensor.
Each sensor interface subsystem communicates with its particular sensor(s) in order to
provide the instructions necessary to collect the appropriate data, collect sensor
readings, and convert raw data to engineering units of measurement (instead of binary
counts).
Flow Sensors
As mentioned earlier, a QS3600 flow monitor can have up to three flow sensors: one
Doppler velocity sensor, one ultrasonic depth sensor, and one pressure depth sensor.
These flow sensors are mounted on an expandable stainless steel ring that is placed in
the sewer pipe upstream from a manhole. Cables connect each sensor to its interface
board through connectors on the monitor's lid.
Battery Pack
The 9 V battery pack provides the power necessary to operate the monitor and
maintain the monitor memory. The monitor measures the battery voltage and signals a
warning when the power is low. The QS3600 battery pack (part number 106152)
meets IS requirements.