Magnetostrictive Level Transmitters LMT100

The LMT100 is based upon the magnetostrictive principle.

1. The device electronics generates a low energy current pulse at fixed intervals.
2. The electrical pulses create a magnetic field which travels down a specialized wire inside the sensor tube.
3. The interaction of the magnetic field around the wire and the magnetic float causes a torsional stress wave to be induced in the wire. This torsion propagates along the wire at a known velocity, from the position of the magnetic float and toward both ends of the wire.
4. A patented sensing element placed in the transmitter assembly converts the received mechanical torsion
   into an electrical return pulse.
5. The microprocessor-based electronics measures the elapsed time between the start and return pulses
   (Time of Flight) and converts it into a position measurement which is proportional to the level of the float.

LMT100 is preferred for:

• Interface Measurement
• Exceptional performance with emulsion
• Measurement with foam on layers fluid surface
• Hydrocarbons and chemical control

Features:

• High accuracy: 0.01% of full scale or + 1.27mm
• Never requires re-calibration: set it & forget it
• Superior Sensor (Patent #5,473,245)
• Local indication with HMI display
• Dual compartment housing with separate field terminal compartment
• Loop powered to 22m (75ft) probe length
• Total and/or interface level measurement
• Pressure to 165.48 bar (2400 psig) Std. 124.1 bar (1800 psig)
• Temperature range: -195.5 to 426.6ºC (-320 to 800ºF) with options
• Field replaceable/upgradable electronics module
• Built-in RFI/EMI filter
• Digital communications

Options:

• Two level indications
• RTD for process temperature measurement
• Glass viewing window
• 316/L Stainless Steel enclosure
• 21-point linearization table