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Model MT4200 Magnetostrictive Transmitter

  • Two wire. 4-20 mA loop powered, proportional transmitter.
  • Sensing lengths from 6 inches to 228 inches (15cm to 6 meters).
  • Continuous level measurement with repeatability to .01 % F S.
  • HART protocol communications available.
  • Modular sensor and electronics design allows for easy installation on all Magnicator II gage styles.
  • FM approved for use in hazardous locations. Class I Division 1 Groups B,C, & D Class II Division 2 Groups E,F, & G.
  • Electronics housed in NEMA 4X, NEMA 7 and IP 66 enclosure.
  • Easily Mounts to the Magnicator II without removing vessel from service.
  • Easy zero and span adjustments.
  • Lightning / Transient protection: Line to ground surge suppression; IEC 61000-4-5 | Line to line and line to ground transient suppressors; IEC 61000-4-4
  • Ambient operating temperature range from -30° F to 300° F (34° C to 149° C).
  • No transmitter parts in contact with fluid when used in conjunction with the Magnicator II liquid level gage.
Principal of Operation

The MT4200 precisely senses the position of the Magnicator II float by applying a short 1.5 Us, pulse to the sensing element. This pulse creates a magnetic field around the sensing element. When the float's magnetic field and the sensing element's magnetic field intersect a twist occurs in the sensing element. The head of the sensing element detects the twist. Based on the time between the initial pulse and the detection of the corresponding twist the location of the float magnet can be calculated precisely.