SQ-Series
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Non-contact discharge measurement for wastewater, sewage systems and industrial waters

Non-contact monitoring Innovative radar measurement technology as key The flow meters of the SQ-series capture continuously and contact-free the flow rate of sewer systems, ducts, semi-filled pipes and other technical channels in the fields of wastewater and industrial effluents. The discharge calculation of the sensor, which is very easy to install and to set up, is based on a hydraulic model. Non-contact level and flow velocity measurement is achieved using up-to-date radar technology, whereby the level is measured by means of ultrasonic or alternatively by radar technology. The series...

Theoretical Principles Measuring principle Flow velocity The measurement of the surface flow velocity is based on the Doppler frequency shift method: A radar signal is transmitted to the water surface at a constant frequency of 24 GHz. The sensor measures the partially reflected signal whose frequency is shifted due to the water movement. The surface velocity is determined through a spectral analysis. Finally, the mean velocity results by applying an integrated hydraulic model and is used for the calculation of the discharge (flow rate). The water level is calculated using a travel time...

Process water, shafts, semi-filled pipes etc. Broad field of application The SQ can be used for various different applications due to its compact design, its housing, which is water-proof and resistant against aggressive liquids, and its convenient and simple installation solutions. Open channels, semi-filled pipes, shafts, ducts and other technical bodies of water are possible applications for the measurement of process, waste and industrial water with the SQ. Mounting cube: vertical / horizontal variable fixation Measuring range of the SQ ›› No construction in the water ›› Simple...

SQ in sewage treatment plants In- and outlet monitoring, storm-water overflows Modern facility management The amount of water entering a sewage treatment plant is considered to be a key parameter. The continuous measurement of the flow rates is very important to guarantee smooth and effective operation. Regulation and control of the plant and its processes (as for example the proper functioning of the aeration basins) essentially depends on the current volume rates. With its non-contact measurement technology the SQ flow meter is particularly advantageous for applications in wastewater with...

Discharge measurement and sewer monitoring Monitoring flow rates Accurate monitoring of their discharge rates is a major interest of municipalities, local authorities, sewage boards and operators of big sewer systems. Planning, allocation of costs and operation of the sewage network essentially depend on these data as well as the professional management of stormwater events. For this reason continuous and reliable measurements at key spots in the system or at storm-water overflow basins are a must. The contact-free measuring flow meters of the SQ-series perfectly fulfil these requirements:...

System Solution: Mobile Monitoring Station Self-supporting, independent and compact system For remote measurement sites without permanent power supply and landline wire connection the SQ can be equipped for remote operation. Including a data logger and data transmission technology (2G/3G/4G modem) together with a strong battery pack the SQ becomes a strong self-supporting and independent system ideally suited for applications in the field or external measurement stations. Optionally the system can be upgraded with a camera for visualisation of the current situation. Two removable boxes (IP...

Integration with Process Control System System integration with PLC‘s Flexible connections, wireless data transmission /F PROCESS CONTROL SYSTEM External monitoring sites (e.g. sewage system, waste water channels, overflow basins) Internal system (e.g. treatment plant, industrial process, facility) Individual communication solutions Inside the plant or process unit the SQ station can be integrated with the process control system (PLC) very easily, either via a digital interface (Modbus/Profibus, RS-485 or SDI-12) or an analog 4...20 mA connection (1x signal for water level, 1x selectable...

Sensor Software Q-Commander The smart sensor software Manage your measurement data The Q-Commander is a very convenient tool to operate the SQ at the measurement site. The sensor can be accessed directly via its digital interface or remotely in case the site is also set up for data transmission. Profile - create, amend, import or store profiles. Communication assistant - connect the device(s) to the laptop and leading through the menu. Parameter - modify parameters, adapt discharge table and upload parameters to the sensor. Measurement - show, store measurement values. Data - data files can...

Cross section profiles Preset, combinations or file imports Choose your individual profile When setting up the measurement site, the specific cross section profile has to be defined. The sensor software Q-Commander helps you to simplify this job offering a variety of pre-set geometries, combinations of the same or manual input. Standard profiles can be circular or rectangular and are created by simply entering its dimensions (e.g. height, width, diameter). The standard geometries can also be combined with each other. Open and closed cross sections can be entered just as simple. Moreover, it...

Technical Details Technical detailsNon-contact SQ flow meter General Sommer GmbH | www.sommer.at | office@sommer.at

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