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Radar love dominates the level scene
Market researchers last year predicted radar sensors would be the fastest-growing sensor, and they got it right — this time. Check out CONTROL's Product Roundup of new level instrumentation devices.
05/10/2005
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Horny Level Sensor
Pegasus radar level transmitter uses frequency-modulated continuous wave (FMCW) technology to measure level at ranges up to 100 ft. It is available with rod and horn antennae in intrinsically-safe and explosion-proof models. The rod antenna version comes with a standard 1.5-in. mounting thread. A flanged mounting is also available. The horn antennae are available with 100 mm dia. for minimum protrusion into the vessel. Solartron Mobrey; 01753 756600; www.solartronmobrey.com
Be Still, My Pipe
The RTG 3950 radar level gauge mounts on existing still-pipes. Typical applications are crude oil tanks with floating roofs and gasoline/product tanks with or without inner floating roofs. Measurement is made with custody transfer accuracy, even when the pipe is old, rusty and covered with deposits. Emerson Saab; +46/31/337-0226; www.emersonprocess.com
Level Sensors Talk over Modbus
EchOsonix line-powered level transmitters now use Modbus communications, so up to 128 transmitters can communicate on one shielded, twisted pair cable. All the units can be polled in less than two seconds. SOR; 262/784-2088; www.sorinc.com
Self-Sealing Float Switch
This level control switch can be installed without entering the tank. Just insert the switch from the outside and tighten the nut. The compression grommet forms a seal on the inside of the tank wall. It can be used on tanks with a wall thickness of 5/32 in. or less. Switches come in polypropylene or nylon, with nitrile or silicone grommets. Cole-Parmer; 800-323-4340; www.coleparmer.com
Underground Sensor
Model USTD II liquid level magnetostrictive sensor is suitable for leak detection and inventory monitoring of underground storage tanks. It can sense inventory level, interface level and temperature, and requires only a single opening in the tank. Applications include upgrades of existing tanks using older mechanical, capacitance or radar technologies. MTS Sensors; 919/677-2332; www.mts.com
Foundation Radar
The 5600 Series non-contact radar level measurement transmitter for process applications on liquids and slurries has HART, Foundation fieldbus, and analog outputs. It is available with a full range of antennae, has software that discriminates between false echo sources and true surface echoes, and can use information provided by the operator about stirrers or other obstructions. It can drive remote displays and up to six externally mounted temperature sensors. Emerson/Rosemount; 952/949-5165; www.emersonprocess.com
Flush-Mount Transmitter
The loop-powered King Gage ES2i transmitter for hydrostatic tank gauging is suitable for sanitary applications. Sensor is isolated using seals while maintaining atmospheric reference. Non-repeatability for process control monitoring is less than 0.02% FS. Options include remote zero and terminal junction. King Engineering; 800/242-8871; www.king-gage.com
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