4-20mA Magnetostrictive Liquid Level Meter With 0.5mm High Accuracy
Working Principle of 4-20mA Magnetostrictive Liquid Level Meter With 0.5mm High Accuracy
There is a float outside the sensor measuring rod of the
magnetostrictive liquid level gauge, which can move up and down
along the measuring rod with the change of the liquid level. Inside
the float there is a set of permanent magnetic rings. When the
magnetic field of the pulse current meets the magnetic field of the
magnetic ring 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 of the
float. The waveguide wire is returned 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.
The technical advantages of the magnetostrictive liquid level
gauge: the magnetostrictive liquid level gauge is suitable for the
liquid level measurement of the clean liquid level with high
precision requirements, and the accuracy can reach 1mm, and the
accuracy of the latest product can reach 0.1mm. Magnetostrictive
level gauges can also be used to measure the interface between two
different liquids. The explosion-proof design is suitable for
hazardous occasions. The intelligent electronic circuit design can
calculate the volume; the only movable part is the float, and the
maintenance is extremely low.
Design feature of 4-20mA Magnetostrictive Liquid Level Meter With 0.5mm High Accuracy
◎Wider applicability, with multiple probe forms, multiple process
connection forms, multiple manufacturing materials, and
customizable design
◎ strong reliability: since the magnetostrictive liquid level gauge
adopts the waveguide principle, there is no mechanical movable
part, so there is no friction and wear. The whole converter is
enclosed in a stainless steel tube, which is non-contact with the
measuring medium. The sensor works reliably and has a long service
life
◎ high accuracy: since the magnetostrictive liquid level meter works
with waveguide pulse, the measured displacement is determined by
measuring the time of the start pulse and the end pulse, so the
measurement accuracy is high and the resolution is better than
0.01% FS, which is difficult to achieve with other sensors
◎ high safety: the magnetostrictive liquid level meter has high
explosion-proof performance, intrinsic safety and explosion-proof,
safe use, and is especially suitable for the measurement of
chemical raw materials and flammable liquids. There is no need to
open the tank cover during the measurement to avoid the insecurity
of manual measurement.
◎ magnetostrictive liquid level meter is easy to install and easy to
maintain: the magnetostrictive liquid level meter is generally
installed through the existing pipe orifice on the tank top,
especially suitable for the installation of underground storage
tanks and storage tanks that have been put into operation, and
normal operation can not be affected during the installation
process
Technical parameters of 4-20mA Magnetostrictive Liquid Level Meter With 0.5mm High Accuracy
| Typical application | Liquid,Interface measurement |
product model | NYCZ500 |
Antenna Form | Cable, pole type |
Antenna material | 304,316 |
| measuring range | 0-50m~5000mm(cable:25m) |
| Measurement precision | ±0.5mm |
| Power Supply | 24VDC(two line, four line), 220VAC |
signal output | 4...20mA/HART/RS485/Modbus... |
| Working current | 4…20mA |
| Load characteristics | When the current is output, the maximum load resistance is 600Ω;
When the voltage is output, the maximum load resistance is 2mA |
| Process Temperature | -40~+200℃ |
| response time | 0.2~5ms |
| Process pressure | -0.1~10.0MPa |
| Process connection | screw thread,bracket,flange(selectable) |
| resolution ratio | ±1mm |
| levels of protection | IP65,IP67,IP68(selectable) |
| Explosion-proof grade | Exia II CT6 Ga,Exd II CT6 Gb(See certificate for details) |
※Note:The product can be customized according to the specific
requirements of users.
