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Unzip Greyline Logger VX.XX.zip using your preferred unarchiver software (e.g. 7zip, Winzip). Open the Greyline Logger VX.XX folder, double click on 'setup.exe' and follow instructions to install logger software.
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Ultrasonic Flow Meters:
DFM 5.1 Doppler
PDFM 5.1 Portable
Doppler Flow Meter
TTFM 1.0 Transit
PTFM 1.0 Portable
Transit Time Flow Meter
DFS 5.1 Doppler
SFM 6.1 Ultrasonic
Slurry Flow Meter
ISM 5.0 Insertion MagmeterProduct details
Portable Transit Time Flow Meter
Open Channel Flow:
Stingray 2.0 Portable
Area-Velocity Flow Meter
AVFM 5.0 Area-Velocity
OCF 5.0 Open Channel
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 (±0.25% of maximum range).
Since the speed of sound is affected by air temperature, Greyline ultrasonic level sensors include a built-in temperature sensor. Level/distance measurements are automatically temperature compensated throughout the operating temperature range of the sensor.
The sensor should be positioned so that it has a clear "view" of the liquid surface and away from ladders, pipes or other obstructions. Greyline recommends 1 ft. from the sidewall for every 10 ft. depth (300 mm for every 3 m depth). False echoes from agitators (sweeping under the sensor), turbulence and waves can be filtered and disregarded by the instrument.
Greyline models range from simple 4-20mA level indicating transmitters, to sophisticated monitoring, controlling and data logging models. Return to Greyline Products for Level model details and specifications. For information on a wide range of level instrument technologies including ultrasonics, read Wastewater Level Measurement Techniques.
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Greyline is a worldwide leader in ultrasonic instrumentation for industrial and environmental markets. We develop, manufacture and market industrial flow and level monitoring instruments including ultrasonic level transmitters, flow meters and open channel flow meters.
Greyline’s primary market is environmental - especially water and wastewater treatment systems. Customers include industry and municipalities.
Modern research facilities at Greyline include closed pipe and open channel flow systems. With years of steady growth, Greyline products are sold and supported worldwide.