Flow measurements in open channels. No Flume Required
SQ-R Non-Contact Radar flow measuring system for wastewater treatment plants, sewers, and industrial open channel Applications
Features and Benefits
Non-contact measurement, maintenance-free system
Calculation of discharge by continuous measurement of flow velocity and water level
No construction measures necessary in the sewer
Waterproof and resistant housing also for use in aggressive environments
Wide measuring range from a few liters up to several cubic meters per minute
High data availability even with intensive turbidity and high solids content
Easy integration into existing measuring and control systems
Self-check function supports correct installation and high data quality
Versatile measurement output via RS-485, Modbus, SDI-12, pulse and analog signal
Integrated hydraulic model for precise flow calculations
Easy configuration with SQ-Commander software
Description
The SQ-R measures continuously and contact-free the flow rate of effluent channels, partially filled pipes, and technical ducts in industry and water supply. The SQ-R is not in contact with the water and can therefore be operated without being affected by debris and entrained solids. With its compact design and versatile mounting options, it is the ideal choice for flow measurements in manholes of facilities and sewers.
The SQ-R is specially designed for municipal and industrial applications in wastewater treatment plants, sewers, and process water circuits. For example, the amount of wastewater entering a treatment plant can be monitored to control the facility and allocate wastewater costs. Furthermore, the duration and frequency of rain and flood events can be recorded, which is essential for sewer management by plant operators and utilities.
Due to its compact design and flexible mounting device, the sensor is very easy to install, for example under bridges or extensions, on ceilings of sewers or in manholes. The non-contact measuring technology has the decisive advantage that the sensor can be mounted above the water level. Thus, the SQ-R can be easily installed, is readily accessible and cannot be clogged or blocked by entrained solids, which is often the case with submerged sensors.
A specially designed adjustable mounting bracket is available for installation in manholes of sewers.
Water Flow Measurement by Non-Contact Radar Flow Meter
Typical Installations
Water Treatment Plants
Industrial Effluent
Sewage System (No Flume Required)
Irrigation Canals
Stormwater Canals
Installation in narrow open channels
Monitoring Flow in A Sewer System with the SQ-R Radar Flow Meter
SQ-R Radar Flow Meter Manhole Installation
Using the SQ-R Radar Flow Meter in Wastewater Treatment Facilities
How does it work?
Flow velocity
A 24 GHz radar sensor measures the velocity of the water surface. Radar impulses are transmitted at an angle towards the water surface where ripples and waves induce a Doppler frequency shift that is detected by the SQ-R.
Water level
A radar sensor measures the distance between the SQ-R and the water surface by registering the travel time of an impulse sent towards the water surface. An ultrasonic level sensor is available on request.
Water discharge
The discharge Q is computed by the SQ-R:
Q = vm * A (h)
Take it to the field.
The SQ-R Radar Non-Contact Flow Meter can be used to measure and monitor flow in a variety of applications.