WIKA Model BLM Magnetostrictive sensor For bypass level indicators-hkxytech
  • WIKA Model BLM Magnetostrictive sensor For bypass level indicators

WIKA Model BLM Magnetostrictive sensor For bypass level indicators

2015-06-17 23:49:08

Description:

Model BLM Magnetostrictive sensor For bypass level indicators……

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New Products

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Confidently measure pressure and level with the Rosemount 3051T In-Line Pressure Transmitter. Engineered for 10-year installed stability and 0.04% of span accuracy, this industry-leading pressure transmitter provides you with the information necessary to run, control and monitor processes. The Rosemount 3051 includes features that meet your pressure measurement needs, such as a wide rangedown and Power Advisory diagnostics and is suitable for safety installations.

Siemens LOGO! basic modules with display 6ED1052-1CC08-0BA0

LOGO! 24CE, logic module, Display PS/I/O: 24 V/24 V/24 V trans., 8 DI (4AI)/4DO, memory 400 blocks, modular expandable, Ethernet integr. web server, data log, user-defined Web pages, standard microSD card for LOGO! Soft Comfort V8 or higher, older projects executable

SMC Directional Control Valves Pilot Operated 5 Port Solenoid Valve Plug-in Type SY3000/5000/7000 SY7420-5L0ZD-02

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Eaton MTL4521/L-MTL5521 MTL Intrinsically Safety Intrinsically Safe Isolators MTL 5500 range solenoid driver

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Assortments

Description

 

Applications

  • Sensor for continuous level measurement of liquids in bypass level indicators

  • Chemical, petrochemical, offshore industries

  • Shipbuilding, machine building

  • Power generating equipment, power plants

  • Pharmaceutical, food, water treatment, environmental engineering industries


Special features

  • Continuous level measurement on the outside of the bypass

  • 2-wire technology 4 ... 20 mA

  • Measured value output via digital interface and a selectable measured value as analogue signal

  • Case from stainless steel (display from glass)

  • Magnetostrictive level measuring instrument with high resolution


Description

Level sensors with a magnetostrictive, high-resolution measuring principle are used for continuous level measurement of liquids and are based on determining the position of a magnetic float following the magnetostrictive measuring principle. The sensors are mounted on the outside of a bypass level indicator.


The measuring process is triggered by a current impulse. This current produces a circular magnetic field along a wire made of magnetostrictive material, which is held under tension inside the sensor tube. At the point being measured (liquid level) there is a cylindrical float with permanent magnets acting as a position transducer, whose field lines run at right angles to the impulse magnetic field. This magnetic field of the float tensions the wire.

The superposition of these two magnetic fields triggers a mechanical wave in the wire. This is converted into an electrical signal at the end of the wire in the sensor housing by a piezoceramic pick-up.

By measuring the elapsed transit time, it is possible to determine the start point of the torsional stress wave and therefore the float position with a high degree of accuracy.