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TECHNOLOGY IN ACTION
devices; measurement is independent of temperature, high winds, fog or rain. New generation, high sensitivity radar electronics ensure security of measurement, even under turbulent, challenging surface conditions. A radar sensor offers higher accuracy - where in open channel flow, for example, the sun shining on ultrasonic transducers can create large temperature errors -
New low-cost water radar T
especially when measured data is factored
through flow equations. The focused radar signal means it can be deployed into crowded pumping chambers and the sealed cable and robust housing provide a high protection rating of IP 66/68 (1 bar). The variety of mounting options easily mechanically integrate into existing applications, and units can directly connect to existing field-bus systems or loop-powered from a signal conditioning instrument for pump control. Integrated sensor linearization curves can be programmed in using free FDT/DTM software, allowing direct output of flow rate in open channels.
VEGA Controls Ltd. Tel: 01444 870055 Web:
www.vegacontrols.co.uk enter 800
inder has extended its relay range with versions designed to suit photovoltaic (PV) inverters, domestic appliances and other equipment needing reinforced insulation, high ambient temperature handling and full disconnection contacts.
The latest product introductions comprise the
45.31 16A rated mini PCB relay and 3 special variants of the 66 Series 30A rated power relays. With an extended 3mm contact gap, the single pole NO 45.31 relay meets the requirements of the EN60730-1 standard for household use and is rated for operation at an ambient temperature up to 105ºC.
Relays handle rigours of PV applications F
It has a high sensitivity 24V DC coil rated at
360mW. In common with the 66 Series specials, the 45.31 has been designed with an 8mm clearance and creepage distance, ensuring safe separation of supply and output, and reinforced insulation between coil and contacts, meeting the requirements of EN60335-1 (VDE0700).
Finder plc Tel: +44 (0) 1785 81810 Web:
www.findernet.com enter 801
VEGAPULS WL 61 level sensor is primarily for water and sewage level measurement. Radar technology offers considerable advantages over ultrasonic
World’s largest LNG tanks rely on ABB instrumentation
emperature and pressure sensors from ABB’s UK Measurement Products business are helping to maintain safety at the world’s largest above ground liquid natural gas (LNG) tanks at National Grid’s Isle of Grain terminal. The four tanks, each holding 200,000 m3 of LNG, are 50 metres high, larger than the Albert Hall. They form Phase 2 and 3 of an expansion plan that will eventually see the site capable of supplying 20% of the UK’s gas demand. Phase 2 involved the building of three large LNG storage tanks, as well as six vaporisers, six ex tank pumps, four boil-off gas compressors, a control room and other ancillary facilities. Phase 3 added another LNG tank, a further four vaporiser units, another four ex tank pumps and two boil-off gas compressors, as well as a new jetty and loading point. These expansions have raised the site’s import capacity to 14.8 million tonnes of LNG per annum. For Phase 2, ABB supplied 93 temperature units and 99 pressure units, while for Phase 3, it supplied 74 temperature units and 140 pressure units.
T ABB Ltd. Tel: 01480 475321 Web:
www.abb.co.uk enter 802
www.labfacility.co.uk Leaders in temperature measurement
Precision Digital Thermometry from Labfacility
The Tempmaster PRO provides precise Platinum Resistance Thermometer temperature measurement and logging for exacting applications in both laboratory and site locations. It is an exceptionally accurate and stable digital thermometer particularly suitable for use with thermal calibration baths as a reference standard. Applications include medical, pharmaceutical, food, environmental testing, R&D and educational establishments.
Reference standard thermometer for Pt100 sensors High accuracy ± 0.01ºC Pt100
Simple, fast digital matching to calibrated sensors, up to 10 points per channel retained in memory
Smart sensor capability Pt100 for corrections stored on probe
Data logging USB serial communications Supplied with PC software Rechargeable Lithium Ion battery/mains powered
www.tempmasterpro.com •
info@labfacility.co.uk
Bognor Regis tel: +44 (0)1243 871280 • Sheffield tel: +44 (0)1909 569446 See us at SENSOR+TEST 2011 • Nuremberg • June 7-9 • stand 12-553
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