Magnetostrictive Level Transmitter

Description

Technical Parameters

Measuring range 0~5000mm(customizable)
Max detectable speed 10m/s
Signal output 4-20mA、0-5V、0-10V、CANopen、CANbus 、EtherCAT(customizable)
Power supply 12-24V DC
Resolution 1;  ±0.1mm(range<400mm) ;2;  range÷4096(range>400mm)
Non-linear error 1;  ±0.1mm(range<400mm) 2;  0.05%FS(range>400mm)
Repeat accuracy ±0.1mm
Temperature effect ≤0.005%FS/℃
Insulation pressure resistance AC 500V/1min/1mA
Short circuit protection Grounding protection
Reverse connection protection Yes
Working temperature -40℃~+80℃
Humidity/dew point Humidity 90%, no condensation
Storage temperature -45℃~+100℃
Protection Wetted part;  IP68; Electronic compartment;  IP67~IP68 (optional)
Wetted material PFA
Electronic compartment PP
Float specifications Φ40×H50×D12
Guide rod specifications Φ12
Working pressure <1.0MPa
Electrical interface Aviation plug M12*1
Installation method Vertical installation

Features

1. Non-contact measurement, never wear out.
2. Anti-strong magnetic field interference (exclusive technology), stable and reliable performance, long service life.
3. Absolute output, no need for regular calibration, no need to reset to zero position when restarting.
4. PFA material housing, resistant to strong acid and alkali corrosion.
5. 0.1mm resolution, high-precision liquid level detection.
6. Easy to install and maintain, using standard output signals, convenient for customer system automation upgrades.
7. Rich communication interfaces, can be customized on demand.

Application

1. Industrial site level measurement and control
2. Oil tank level measurement
3. Chemical process level control
4. Pharmaceutical tank level control
5. Food and beverage tank control
6. Dam water level monitoring
7. Drinking water and sewage treatment, etc.

Magnetostrictive Level Transmitter

Model:ZM-L

Level transmitters using a magnetostrictive, high-resolution measuring principle are designed for continuous level measurement of liquids. They operate based on determining the position of a magnetic float, following the magnetostrictive principle, and are typically mounted on the outside of a bypass level indicator.

The measurement process begins with a current impulse, which generates a circular magnetic field along a wire made of magnetostrictive material. This wire is held under tension inside the sensor tube. Positioned at the liquid level is a cylindrical float with permanent magnets, which acts as a position transducer. The float’s magnetic field interacts at right angles with the impulse magnetic field.

The interaction of these two magnetic fields creates a mechanical wave in the wire. This wave is then converted into an electrical signal by a piezoceramic pick-up located at the end of the wire inside the sensor housing. By measuring the propagation delay of the wave, the position of the float— and therefore the liquid level— can be determined with high accuracy.

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