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♦ 1 mm or 5 mm accuracy ♦ Rigid or flexible guide tube ♦ Intrusion length maximum 10 m ♦ Stainless steel or plastic versions ♦ 4 … 20 mA and HART capability ♦ Plug in field display module ♦ ATEX certified versions ♦ Tank content measurement

LEVEL TRANSMITTERS :: Magnetostrictive - NIVOTRACK - 7110 A

BOUT

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IVOTRACK

NIVOTRACK M-300 series working on themagnetostrictive principle is high accuracy float level transmitter.Due to its high temperature and pressure rating they canalso be used for level measurement of production technologies. Its high precision renders the NIVOTRACK suitable forcustody transfer measurement of valuable liquids such as fuels, solvents alcohol derivatives etc.Most suitable applications are with liquids free of solidparticles and with low viscosity both in ordinary and hazardous locations.Plastic coated versions of the NIVOTRACK substantiallyexpand the field of application by a wide range of aggressive materials. Units with flexible tube do not only make this accurate measurement for higher tanks possible, but offer a more convenient way for delivery and installation. Weight at the bottom end of the flexible tube provides forthe spanning and fixing of the guide. The spanning weight is integral part of the NIVOTRACK.

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PERATING PRINCIPLE

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 themagnetostrictive wire. When the pulse reaches the float’s magnetic field, a twist develops in the wire.Reflected from the torsion point, the pulse creates anacoustic wave that travels back along the wire. The4…20 mA output of the transmitter is proportional to theelapsed time between the excitation and detection.Output fluctuation caused by surface waving can beeliminated by modification of damping.