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Greyline Instruments develops and
manufactures industrial flow and level monitoring instruments for
measurement and control in water and wastewater treatment, industrial
process automation and for environmental monitoring.
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Greyline Instruments develops and manufactures industrial flow and level monitoring instruments for measurement and control in water and wastewater treatment, industrial process automation and for environmental monitoring.
Greyline Level instruments include ultrasonic level transmitters, pump station controllers, tank farm monitoring systems, software and data loggers.
Greyline’s ultrasonic Flow products include portable meters for troubleshooting, Doppler flow meters with strap-on sensors, flow switches, open channel flow monitors and data loggers.
Greyline ultrasonic sensors are mounted at the top of a tank or in a position above the liquid being measured. The sensor continuously transmits pulses of high frequency sound (typically 42 kHz) which travel away from the sensor, hit the surface of the liquid and return to the sensor. The instrument electronics measure the time it takes from transmitted sound to return of the echo. With reference to the speed of sound in air, the exact distance of the liquid surface from the sensor can be calculated with high accuracy.
www.greyline.com
