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 Location£ºHome - Products Show - level instrument - Magnetostrictive transmitter
magnetostriction liquidometer

These transmitters are used extensively around the world to provide continuous level indication, and transmission of an analog and/or digital signal for monitoring or control. The unique design allows increasing level sensing resolution, which is more than 100 times greater than a conventional reed switch type device. The Magnetostrictive Level Transmitter versatility allows direct in-tank installation or externally mounted to a magnetic level gauge. HART, Foundation Fieldbus and Honeywell DE protocol options make our magnetostrictive level transmitters easy to connect digitally to most control systems.

Customer benefits:

  • High Accuracy
  • High Reliability
  • No calibration required
  • No Maintenance

Industries served:

  • Oil and Gas
  • Petrochemical
  • Chemical
  • Power Generation
  • Water and wastewater treatment
  • Food and Beverage
  • Pharmaceutical
  • Pulp and Paper
  • Biotech
  • Marine

1. Principal

The magnetostrictive Level transmitter will precisely sense the position of an external float by applying an interrogation pulse to a waveguide medium. This current pulse causes a magnetic field to instantly surround the waveguide. The magnet installed within the float also creates a magnetic a magnetic field. Where the magnetic fields from the waveguide and float intersect, a rotational force is created (waveguide twist). This, in turn, creates a torsional-sonic pulse that travels along waveguide as shown in Figure 1 ¡°Principal of magnetostrictive. The head of the sensing element houses the sensing circuit, which detects the torsional-sonic pulse and converts it to an electrical pulse. The distance from a reference point to the float is determined by measuring the time interval between the initiating current pulse and the return pulse and precisely knowing the speed of these pulses. The time interval is converted into a 4-20 mA loop signal. The Level transmitter offers level, interface, or temperature outputs. There are current loops available; any output may be assigned to either of the two loops.


2. Features and Applications  

2.1 Features

• Modular design

• High accuracy and repeatability

• level and interface level Measurement

• Temperature Measurement

• Explosion-proof and/or Intrinsically Safe

• No maintenance required

2.2 Applications

• Process oil/water Level Measurement

• Bulk Storage

• Magnetic Level Gauge Transmitters

• Pharmaceutical

• Biotech

• Semiconductor

• Speciality Chemical

• Process Chemical


3. Specifications

l  Input voltage range:                  24V¡À2.4V.DC

l  operating temperature: Electronics:  

normal temperature: 0¡æ ¡« + 70¡æ

wide temperature:£­40 ¡æ ¡« + 85¡æ

    Sensor:        £­40¡æ ¡«£«110¡æ

l  Length (including housing)                100mm¡«5000mm

l  Analog output: 4¡«20mA£»0¡«5V£»0¡«10V£»digital communicate output: RS232, RS485£»Baud rate selectable: 2400, 4800,9600.

l  Accuracy:  the display digit¡¯s max. allowed error have 2 indicating type.

1.       Indicate as ¡À(a%*FS+b), ¡°a¡± is level transmitter¡¯s relative error value: have 0.01, 0.02, 0.05, 0.1 selectable. ¡°FS¡± level transimmter¡¯s measure range, can be in mm and m, ¡°b¡± is digit communicate level transmitter¡¯s resolution, unit is mm, for analog output type level transmitter b=0.

2.       Indicate error as ¡ÀN, N is level transmitter¡¯s absolute error value, have 0.5mm, 1.0mm, 1.5mm, 2.0mm selectable.

l  Non-linearity          ¡Ü¡À0.05%FS

Or  ¡Ü150¦Ìm (length ¡Ü 300mm)

l  Repeatability          ¡Ü¡À0.002%FS

l  Temperature  Drift:    50ppm/¡æ

l  Power Consume           ¡Ü50mA

l  Wave of output          ¡Ü20mV

l  Dead area             up dead area£¬42mm£»down dead area£¬30mm

l  loads                   4¡«20mA£º load resistance¡Ü500¦¸

l  0¡«5V£¬0¡«10V£ºimpedance<20¦¸

l  sensors material        0Cr18Ni9¡¢1Cr18Ni9Ti or by user

l  Electronics material        1Cr18Ni9Ti or by user

l  Wiring:  1: 4-wire connection, shielded cable£¬standard 1.5m, Max: 20m

2: aviation connecter 

l  Materials (wetted parts)          1Cr18Ni9Ti¡¢0Cr17Ni12Mo2¡¢00Cr17Ni14Mo2

l  Mounting          M18¡Á1.5¡¢M20¡Á1.5¡¢3/4-16UNF-2A

l  Explosion-proof rating     ExdIIBT5

l  Ingress Protection        IP65


4. Figure of product


Figure 2 Magnetostrictive Liquid Level Transmitter£¨Normal£©


Figure 3 Magnetostrictive Liquid Level Transmitter£¨Explosion-proof£©


 Figure 4 Float Size

Adds£ºJinnan Industrial Park, Tianjin, China ¡¡Tel£º+86 22 88971536 ¡¡Fax£º+86 22 88971536
Copyright level sensors and flow meters Tianjin U-ideal Instrument Co., Ltd ( Hebei Xukang Meter Manufacturing Co.,Ltd) all right reserved.

Tianjin U-ideal Instrument co., ltd is one of esteem company with collection of scientific research, development and sales. We have abundant technical capacity, special scientific research teams with advanced producing and checkout equipment.

Tianjin U-ideal Instrument Co., Ltd produce and sell Magnetic Level Indicator, bi-color quartz glass tubular level gauge, liquid level switch, float switch, level sensor, level transmitter, level switch, tank gauge, water gauge, liquid level instrument, ultrasonic level sensor, flow meter, PD flow meter, oval gear flow meter, dual-rotor turbine flowmeter, duplex rotor meter, vortex flow meter, turbine flowmeter, electromagnetic flowmeter, metal rotary flow meter and valves,oil/water industrial control systems.

We are TIANJIN U-IDEALINDUSTRIES COMPANY , have accumulated abundant experience especially in high temperature and high pressure liquid level meters ,and antiseptic liquid level gauge .we also made to orders of non-standard liquid level meters to satisfy different customers .those products has been used by many enterprises of all walks of chemical,industries, petroleum ,electricity, food, light, medicine, metallurgy, papermaking etc.. and our products have been certified by quality system ISO9001£º2000.

Tianjin U-ideal Instrument Co. are also engaged in flowmeter trade. Such as gas flowmeter and liquid flowmeter with the type of explosion-proof and others.