Solartron Mobrey, through its southern African distributor, Dupleix Liquid Meters (DLM), has launched a range of innovative 2-wire loop powered non-contact radar level transmitters, MRL800.
Featuring frequency modulated continuous wave (FMCW) technology, the new competitively-priced transmitter offers superior reliability to that of other level transmitters and is available with both rod and horn antenna to provide level measurement in a wide range of applications. MRL800 has an operating range of 30 m/100 ft, and is available in intrinsically safe and explosion-proof designs. A two-wire instrument, supplied in a rugged industrial housing, it is easy to install and maintain.
MRL800 offers reliable level measurement of liquids in aggressive, toxic or difficult processing environments. It is suitable for storage monitoring and stock control applications as well as in-process monitoring and control duties.
The MRL800 rod antenna version is a cost-effective repeatable level measurement instrument. For applications that involve agitated liquids or the presence of condensation or foam the horn antenna version routinely delivers stable and reliable output - unlike other less sophisticated level measurement technologies. As a result, industrial processing plants and storage facilities can have better control over the liquids stored and used, which results in a more cost-efficient and compliant site.
HART compatible, MRL800 can be controlled from anywhere on the two-wire loop and has a range of control options that enable customers to install and use the sensor in the most appropriate way for their facility. Data can be accessed through a PC (using the Mobrey H-Conf401 Windows-based PR programme), a Palm PDA (Mobrey HPC-301) and series of wall and panel mounted control units (MCU900).
The FMCW technology operates as follows: The antenna emits a linear microwave signal that is closely controlled to ramp between 5,55 GHz and 6,40 GHz over a fixed time period, towards a liquid level surface below. The difference in frequency between the transmitted and the received echo signals gives a measurement of the distance to the surface of the liquid. FMCW radar transmitters deliver more power to the target liquid level surface than pulsed transmitters, giving more reliable and repeatable operation in difficult operating conditions.
The rod antenna version comes with a standard 1,5" mounting thread but flanged mounting with seal welded construction is also available. The horn antennas are available as standard in 150 mm diameter, or with 100 mm in diameter for minimum protrusion into the vessel where space is constrained. All MRL800 transmitters continue to operate up to 150°C.
DLM believes that by choosing any of Solartron Mobrey's range of products, users would be selecting availability, quality, professional advice and proven performance - delivered through its extensive, well established branch infrastructure. "We are very excited about this new range of equipment," says general manager, Dave Rosser, Instrumentation Division. "It furthers our offering into the general instrumentation industry at a very appealing price."
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