Magnetostrictive level transmitters NMB - Kobold

The NMB magnetostrictive level transmitters are an ideal solution for accurately measuring clean liquids. Their accuracy makes them an excellent choice for custody transfer measurement of liquids such as fuels, solvents, and alcohol derivatives. Flexible tube units allow accurate measurements in tanks as high as 15 meters. Plastic-coated models can be used with aggressive materials. Integrating the transmitter into a process control system is easy with intelligent signal processing, communication software, and a wide range of accessories.

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Operating principle: a float containing a magnetic disc moves along a guide tube with the specific magnetostrictive wire in it. A pulse generated by the electronics travels along the magnetostrictive wire. At the point the pulse reaches the float’s magnetic field, a torsion develops. Reflected from the torsion point, the pulse creates an acoustic wave that travels back along the wire. The 4 to 20 mA output of the transmitter is proportional to the elapsed time between the excitation and detection.

Features

Resolution: 1 mm or 0.1 mm;
Insertion length up to 15 m;
Output: 4 to 20 mA and HART®;
Graphic display;
99-point linearisation table;
Interface measurement;
ATEX certified variants;
IP67 (IP68) classification;
Measured process value: Liquid level, distance, volume;
Process temperature: -40°C to +90°C.

Advantages

Different types of probes and materials available for all types of applications;
Measurement optimization for custody transfer applications;
Possibility of installation in bypass tubes.

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