MLT type magnetostrictive level transmitter is a kind of high-precision level transmitter, and it is also mounted as an external binding transmitter on the local level gauge. The product can be used for level and interface measurement. Through the magnetostrictive wire, the core part of the sensor, the small changes in magnetic field vectors are transformed into mechanical waves. The sensor circuit transmits current pulses along the magnetostrictive wire inside the sensor tube, forming a ring magnetic field around the magnetostrictive wire. When a float is encountered, the magnetic field generated by the permanent magnetic steel inside the float magnetizes the magnetostrictive wire axially. When the two magnetic fields are superimposed, the pulse is transmitted along the magnetostrictive wire to the top and bottom ends of the sensor respectively, and the float position is accurately confirmed by measuring the time difference between the starting and returning pulses.
Made in China. brand DDTOP, model MLT
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MLT Magnetostrictive level transmitter is mainly designed and developed based on the principle of magnetostriction. It is a modern high-precision liquid level measuring instrument that integrates advantages of high measurement accuracy, fast response, good reliability, long life, and exquisite structure.
MLT Magnetostrictive level transmitter will transform liquid level into 4~20mA two wire standard signal output, with HART communication protocol, which can meet various industrial field requirements. The products are widely used in petroleum, chemical, metallurgical, food and other fields.
Working Principle
The core of MLT type magnetostrictive level transmitter is the sensor, and the core of the sensor, the magnetostrictive wire, is made of rare earth super magnetostrictive material, which is known as “black earth gold” in the modern industry. It has the advantages of high strain value and strong electric (magnetic) mechanical wave conversion ability, which can transform small magnetic field vector changes into mechanical waves. The working principle is: there is a tensioned magnetostrictive wire (1) inside the sensing tube, and the sensor circuit emits current pulses (2) along the magnetostrictive wire, thereby forming a circular magnetic field around the magnetostrictive wire (3) There is a set of permanent magnets (4) inside the float, whose magnetic field makes the magnetostrictive wire magnetize in the axial direction. When the two magnetic fields are superimposed, a torsional pulse (5) will be generated at the position of the float. The pulse is transmitted to both ends along the magnetostrictive line, one end is transmitted to the top of the sensor tube, received by the sensor circuit, and the other end is transmitted to the bottom of the sensing tube. The time difference between the start pulse and the return pulse is measured to determine the float position
Features
1.4 buttons operating interface and LCD graphical display will provide more efficient configuration, calibration, measurement, fault display and other functions.
2.The product determines the displacement by measuring the time difference between the transmitted pulse and the return pulse, the accuracy is very high, and can reach 0.5% or better.
3.The product can measure level or interface. It is a real multi-parameter measurement.
4.The product can be easily combined with magnetic level gauge.
Applications
Chemical: Tank sealing
Natural gas: Vapor recovery
Electricity industry: Deaerator
Sewage treatment: Gas flow from digester
| Model | Code | Content | |||
| MLT- | Magnetostrictive level transmitter | ||||
| Probe material | |||||
| 1 | 316L | ||||
| 2 | Others | ||||
| Output type | |||||
| s | Level measurement | ||||
| J | Interface measurement | ||||
| Process
connection |
|||||
| 1 | Threaded top mounted（≥11/2“） | ||||
| 2 | Flanged top mounted (≥DN50) | ||||
| 3 | With chamber (Top mounted) | ||||
| 4 | With chamber (By-pass) | ||||
| 5 | Transmitter (For use with magnetic level gauge together) | ||||
| Explosion-proof
type |
|||||
| i | Intrinsic safety | ||||
| d | Explosion-proof |
Example of Model Selection MLT-1S3d
MLT Type magnetostrictive level transmitter, probe material is 316L, level measurement, with chamber ( top mounted type), explosion-proof type.
You can request the necessary certificates, documentation, instructions and user manuals for DDTOP MLT using the special form.
You can buy DDTOP MLT in UK or Europe at a favourable price in «DOLCHETRADE» by leaving a request on the website, by phone +441225535040 or by email dolce@dolcetrade.com. DDTOP MLT price are subject to change depending on exchange rates. We deliver instruments by transport companies in the United Kingdom and Europe.
