Auto-calibrate even lower flows with new Litre Meter rig
24 September 2015
Custom flow meter manufacturer and distributor Litre Meter (www.litremeter.com) has developed a new temperature-controlled volumetric rig specifically for calibrating ultra-low flow (range - 0.0006 to 50 l/hr.meters) for chemical injection applications.
Unveiled at Offshore Europe, the temperature-controlled volumetric low-flow calibration rig delivers automatic calibration of flow meters and instrumentation within a flow range of 0.0006 to 50 l/hr to an accuracy of 0.2 per cent and a repeatability of 0.05 per cent.
Accuracy is much greater and uncertainty is much lower than was previously achievable using volumetric calibration.
All the associated tanks, pumps, ultra-sonic sensors, pressure gauges and temperature probes are housed in a compact and maneuverable temperature-controlled cabinet.
Now commercially available from Litre Meter, the new volumetric low-flow calibration rig can measure any fluid type within reason and features a reverse flow testing facility.
Charles Wemyss, CEO of Litre Meter, said: “We recently introduced our LF03 low-flow VFF rotary piston meter taking the capability of our VFF flow meter range down to lower flows than ever before – for example, on a fluid with a viscosity of 10 cSt the LF03 will measure down to 0.06 litres/hour at pressures of 1 bar right up to 4,000 bar.
“As a result of this innovation the next logical step was to develop a calibration rig capable of accurately measuring ultra-low flow rates. We were so happy with the results that the decision was made to make the volumetric low flow calibration rig available on the open market.”
About the company:
Litre Meter, based near Buckingham, UK, was established in 1975 and specialises in the custom design and manufacture of instruments for measuring and controlling fluids. The company has particular expertise with offshore and sub-sea flow measurement and has supplied flowmeters for these applications throughout the world. The company’s VFF flowmeter was developed specifically for the petrochemical industry.
Litre Meter also pioneered the development of the Pelton wheel flowmeter, an accurate and versatile technology that has since been used across many industries to measure a variety of low viscosity liquids at both low and high flow rates. The company is also UK distributor for other flowmeter technology including Sierra Thermal, Ultrasonic and Vortex Mass gas flow meters TRICOR Coriolis and Ritter gas flowmeters and KEM positive displacement flowmeters for liquids.
Litre Meter is part of the Tasi Group of companies which includes AW Lake, KEM and TRICOR.
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