Magnetostrictive Liquid Level Meter

Magnetostrictive level meter is a representative of accurate measurement, maintenance-free and long service life. Although the appearance is humble, but it is the main product of liquid level measurement or liquid level control. In the petrochemical industry, power metallurgy, water treatment equipment and other fields have a lot of applications.

 

Magnetostrictive level meter is mainly composed of electronic transmitter, float ball and probe rod. The float rises or falls along the conduit, and the float is equipped with a permanent magnet and a magnetic field is formed around it; The electronic transmitter periodically sends out a current pulse, called the initial pulse, which travels down the magnetostriction line and generates a magnetic field in the downward motion; The two magnetic fields generate torque on the magnetostriction line, creating a return pulse.

 

The pulse travels upward at a fixed speed and is received by an electronic transmitter. Using the Weidman effect principle (also known as the magnetostriction principle), the time interval between the initial pulse and the return pulse can be accurately measured through modern advanced electronic technology.

 

A float is provided outside the measuring rod of the magnetostrictive level meter to move up and down with the level. Inside the float is a set of magnetic rings. When the pulsed current magnetic field meets the magnetic ring magnetic field generated by the float, the magnetic field around the float changes, so that the waveguide line made of magnetostrictive material generates a torsional wave pulse at the position where the float is located, which is transmitted back along the waveguide line at a fixed speed and detected by the detection mechanism.

 

Technical Parameter

Measured medium	Various liquid media
Medium temperature range	-40℃～150℃
ambient temperature	-40℃～80℃
Pressure range	-98KPa～4MPa
Shell material	Die cast aluminum alloy
Rod material	304/316/PP/ Tetrafluoro
Floating ball material	316L/PP/coatingPTFE
Explosion proof grade	Exd ia IIC T5 Ga
Enclosure protection class	IP65
Safety certification level	SIL2
Connection mode	G1 "thread (standard) 1" NPT thread; flange mounting
Supply voltage	24V±2.4V. DC
output signal	4-20mA，RS-485,MODBUS agreement
Electrical interface	M20*1.5
measurement accuracy	±1mm
Error	0.1%
Repeatability	be better than±0.002%FS
Indication mode	LCDBacklit digital display
Probe material	Stainless steel / stainless steel + PTFE

 

Working Principle

Because the magnetostrictive level meter adopts the intrinsic safety explosion-proof, the explosion-proof property is outstanding, the safety of use is improved, and the insecurity existing in manual measurement is avoided. Its secondary instrument adopts standard output signal, which is convenient for microcomputer to process the signal, easy to realize network work, and improve the automation degree of the whole measurement system.

 

 

 

 

 

 

 

Product Details

High quality stainless steel shell with protection level of IP67

M20 * 1.5 explosion-proof electrical interface

High quality stainless steel magnetic floating ball

LCD high-definition display

Product classification

 

 

 

Product Application

 

 

Certifications

12 month warranty period; Lifetime maintenance free

 

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