SQ-R+ Flow Meter

Non-Contact Flow Measurement for Wastewater and Industrial Applications

The SQ-R+ provides continuous, contact-free measurement of flow rate in effluent channels, partially filled pipes, technical ducts, and industrial water systems. Since the sensor is mounted above the water surface, it is not affected by debris, sediment, or entrained solids.

Features and Advantages

• Non-contact, maintenance-free measurement system

• Discharge calculation via continuous flow velocity and water level measurement

• No structural modifications required in the sewer

• Waterproof and chemically resistant housing for aggressive environments

• Wide measuring range from a few liters up to several cubic meters per minute

• Reliable data even in high turbidity and high solids content conditions

• Simple integration into existing monitoring and control systems

• Self-check function ensuring proper installation and high data quality

• Multiple output interfaces: RS-485, Modbus, SDI-12, pulse and analog signals

• Integrated hydraulic model for accurate flow computation

• User-friendly configuration via SQ-Commander software

Fields of Application

The SQ-R+ is designed for municipal and industrial wastewater treatment plants, sewer networks, and process water systems. It enables operators to monitor inflow volumes for plant control and cost allocation. Additionally, it records rain and flood events to support effective sewer system management.

Installation and Implementation

Thanks to its compact design and flexible mounting options, the sensor can be easily installed under bridges, on sewer ceilings, inside manholes, or other confined spaces. The non-contact technology prevents clogging and blockage common with submerged sensors.

A specially designed adjustable mounting bracket is available for manhole installations.

Autonomous Monitoring Option

For remote locations without grid access, the SQ-R+ can operate as a standalone monitoring station when combined with a data logger, transmission modem, battery system, and solar panel. An optional camera can be added for on-site visual monitoring.