SCZ21 Magnetostrictive Liquid Level Transmitter
Features
• Safe and reliable, stable operation
• Large measuring range and high precision
• Liquid level and boundary level measurement
• Anti-static, anti-surge, anti-interference and electromagnetic
compatibility design
• The pressure-bearing pipe design of the high-pressure vessel does
not require pressure relief for maintenance
• It can be used in dangerous places such as Viscous medium,
corrosive, toxic, flammable and explosive
Principle
The structural part of the magnetostrictive liquid level sensor is
composed of a stainless steel tube (a measuring rod), a
magnetostrictive wire (waveguide wire), a movable float (with a
permanent magnet inside), and the like. When the sensor is
operating, the circuit portion will excite a pulsed current on the
waveguide wire that will generate a pulsed electromagnetic field
around the waveguide wire as it propagates along the waveguide
wire. A float is arranged outside the sensor rod, and the float can
move up and down along the rod as the liquid level changes. There
is a set of permanent magnetic rings inside the float.
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 wire made of
magnetostrictive material generates a torsional wave pulse at the
position where the float is located. This pulse is along a fixed
speed. The waveguide wire is transmitted back and detected by the
detection mechanism. By measuring the time difference between the
pulse current and the torsional wave, the position of the float,
that is, the position of the liquid surface, can be accurately
determined.
Specification
Range: 0-6000mm (hard rod)/0-25000mm (soft rod)
Accuracy: ±1mm
Resolution: 0.1mm
Environment temperature: -25℃-70℃
Liquid temperature: -25℃-150℃
Process interface: M27*2
Power supply: DC24V
Output signal: 4-20mA, two-wire system/three-wire
Temperature measurement: -25℃-70℃
Thermal error: ±0.5℃
Explosion-proof: ExiaIIBT4
Communication: RS-485, RS-232, Modbus, Hart and other protocols,
can be equipped with CAN bus or customized.
Installation
The magnetostrictive level transmitter has two installation forms
to meet user needs, including: top-mounted and side-mounted.
Mounted Magnetostrictive liquid level meter Magnetostrictive level
transmitter
Applications Magnetostrictive liquid level meter Magnetostrictive
level transmitter
