Product Spotlight - Water: Level transmitter employs Guided Wave Radar technology

Product Spotlight - Water: Level transmitter employs Guided Wave Radar technology

Accurate level measurement is essential in water and wastewater management for the effective monitoring and control of process steps in the water cycle. Taking that accuracy requirement further, Hawk Measurement Systems has designed and developed what they are calling the industry’s first Guided Wave Radar level transmitter featuring Power over Ethernet communications — the CGR PoE Level Transmitter.

The CGR PoE Level Transmitter is ideal for the measurement of liquids, sludge, powders and granules for level and interface. The measurement technology is more accurate than other transmitters because, according to Jack Evans, global president of Hawk Measurement, the unit itself is not affected by pressure, temperature, viscosity, vacuum, foam, dust, changes in dielectric constant or coating of the probe.

“HAWK continues to focus on developing technologies to help our customers,” says Evans. “We are very excited about the interest and feedback for the Guided Radar Power over Ethernet product, as this was developed based on our customers’ needs and input.” 

The guided-wave technology sends the radar pulse down a probe to measure either liquids, solids or a low dielectric to high dielectric interface level. The pulse hits the surface and/or interface and is reflected back up the probe to the sensor, where the transit time is translated into a distance using time of flight and time expansion. The amplitude of the reflection depends on the dielectric constant of the product.

The advantages to Power over Ethernet connectivity are secure in-plant and remote monitoring, as well as remote sensor setup, diagnostics and troubleshooting abilities. If any troubleshooting is required, the CGR PoE will communicate to remote service technicians for off-site diagnostics, sensor health and re-configuration, without the need to climb a tank or enter the facility.

The CGR PoE level transmitter can connect to an online portal — HawkEye365 — which can monitor multiple tanks worldwide in real time. This portal provides accessibility to critical data such as the ability to view volume, space, material height, historical trending, alarms and alerts, sensor setup and diagnostics. Plant-level operator screens are customized to the company’s specifications to include control room level and operations level interface screens. The graphical user interface will be common throughout and permissions can be set for different tiers such as plant-level, finance or executive-level. 888-429-5538;


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