44 Water / Wastewater Titan Enterprises Goes ‘Back to Basics’ with Flow Meter Sensors
Liquid fl ow meter specialist Titan Enterprises, has published a technical review of pulse sensors for fl ow measurement devices and applications.
“Deciding on the best fl ow meter for a particular application can be problematic,” states Neil Hannay, Senior R&D Engineer with Titan Enterprises. “There is such a wide array of sensing and output technology combinations, each with its advantages and disadvantages. We wanted to pull together a technical explanation of fl owmeter sensors and pulse output types so users can choose the one that will give them the most effi cient system operation.”
Flow meters have developed into many forms over the years, from mechanical devices – such as a turbine or rotating gear - which rely on measurement of a rotational component, to devices that use ultrasound and other advanced technologies. These meters generally use a sensor to relay the fl ow measurements to a reading device. Nearly all types of fl owmeters, from ultrasonic to turbines, are offered with pulse output fl ow signals. Sensing components used in a fl owmeter measure the movement or fl ow rate of the liquid or gas passing through the system. The pulse output signal from these devices is, in essence, an on/off switch which changes state at a frequency related to the fl uid fl ow.
As well as discussing the different sensors primarily used in today’s fl owmeters and drawing on examples of application, a detailed review of the semiconductor sensor components is also included. Titan’s technical review touches on advantages and disadvantages of each sensor type, along with best practice for connecting sensors to the desired read-out device.
Defi ning some of the key functions and recommended applications of these sensors provides a useful comparison to guide the user’s decision as to the optimum output for their fl ow measurement requirements.
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New versatile submersible water level transmitter
New, precise and user-friendly transmitter for precise drinking water fl ow measurements
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NIVUS’ new NivuFlow non-contact fl ow measurement system for drinking water applications stands out with its simple installation without the need to interrupt the process as well as with its very high measurement accuracy.
The IP68 clamp-on sensors are clamped onto the pipe from the outside. This uninterruptible mounting means that it is not necessary to open and, if necessary, cut the pipe and then fl ush the pipe. The sensors do not come into contact with the drinking water and guarantee absolute hygiene. This makes the measurement system suitable for retrofi tting to existing systems.
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Commissioning is simple and straightforward thanks to the menu-supported sensor alignment. The measurement system is suitable for all common pipe materials and pipe linings and can also be installed directly in the ground without the need for a shaft structure. With its ability to monitor all system-relevant parameters such as fl ow rate, fl ow velocity and temperature, it offers comprehensive control options. The intuitive operating concept of the transmitter enables quick commissioning and also on-site diagnostics. With IoT-ready function and global 4G connection, it is designed for maximum availability and digital services.
Solinst Canada Ltd. has introduced the Solinst Model 301 Water Level Temperature Sensor, providing the option of highly accurate water level transmission using multiple protocols, including MODBUS and SDI-12, for a wide variety of applications.
This compact, all-in-one submersible hydrostatic level transmitter provides continuous, stable water level and temperature readings, with options for absolute (non-vented) and gauged (vented) pressure sensor setups. The durable water level pressure sensor provides 0.05% FS accuracy, factory calibrated to NIST traceable standards.
There are six pressure ranges (5–200 m), with communication cable assemblies available in lengths up to 300 metres. Vented cables contain built-in hydrophobic water- blocking fi lters (no consumable desiccants!).
The water level pressure and temperature sensors are enclosed in a narrow, robust 22 mm x 192 mm (7/8” x 7.55”) 316L stainless steel housing. Double o-ring seals prevent leaks, and a Faraday cage design protects against power surges and lightning. Each probe features a removable nose cone for optional use of the 1/4” NPTM threaded connection to attach to pipes/conduit.
PC software utilities make it very straightforward to set up the sensor for different protocols, perform diagnostics, and update sensor fi rmware if required. Connect to a PC using a USB-A Programming Cable.
With the fastest output rate on the market at 1 second, the Water Level Temperature Sensor is easy to integrate into existing monitoring systems, e.g., SCADA or PLC. Measure hydrostatic liquid levels long-term in industrial, municipal, and environmental applications.
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NivuFlow 600 WS offers very high measuring accuracy even at the lowest fl ow velocities. The system also has comprehensive measurement dynamics and is also suitable for bidirectional measurements.
Typical applications include fl ow measurements in drinking water tanks, pumping stations and treatment plants. The NivuFlow 600 WS is also suitable for leakage monitoring in the drinking water network with simultaneous monitoring of the temperature relevant for hygienic operation.
Advanced satellite telemetry enables peace of mind for technicians undertaking extremely remote water monitoring projects
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SolSat 5 Satellite Telemetry is an advanced telemetry system that leverages Iridium satellite technology to provide global connectivity for your remote water monitoring projects. The Model 9700 SolSat 5 uses TextAnywhere two-way global satellite messaging service to send data from Solinst dataloggers in the fi eld to a secure web portal where you have complete control of your data. TextAnywhere also allows you to text or email through the integral SolSat 5 Wi-Fi App, providing convenience and safety when at remote sites.
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The SolSat 5 is compact, lightweight, and features a robust weatherproof enclosure. It is installed anywhere with very little site preparation, saving costs and time in the fi eld. A built-in solar panel extends the battery life. The SolSat 5 is simple to set up with Solinst dataloggers using an integral, secure Wi-Fi App on your smartphone or laptop. The app allows viewing, scheduling, and confi guration wirelessly from your browser. You can also set high or low-level alarms for the connected datalogger.
Users can select a low-cost data plan through Solinst. Along with water level, temperature, conductivity, or barometric data, battery voltage from the remote SolSat 5 is received with each data report. The built-in barometric sensor allows for automatically compensated water level data reported from the fi eld.
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