Magnetostrictive liquid level meter

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Magnetostrictive liquid level meter with low power consumption MCU and high precision digital conver…

Magnetostrictive liquid level meter with low power consumption MCU and high precision digital conversion components, direct measurement and calculation of digital temperature sensor, the measured results in the form of digital output, and can be transmitted over a long distance with excellent anti-interference performance of modular design is exquisite, realize the installation site is not clear tank maintenance, reduce the maintenance cost standard thread or the flange connection, installation is simple and quick.

Principle:

Magnetostrictive liquid level sensor, the sensor circuit part will inspire a pulse current on waveguide wire, wire when the current wire along the waveguide propagation in the waveguide of impulse current magnetic field generated around.Outside the sensor rod is equipped with a float, the float along the rod can move up and down along with the change of liquid level.A group of permanent magnetic ring inside the float.When the impulse current magnetic field when they met with float copper produced by the magnetic field, the magnetic field around the float is changed so as to make the wire made of magnetostrictive materials waveguide in float position to produce a torsion wave pulse, the pulse at a fixed speed along the waveguide wire back and detected by the detection institution.By measuring the transmitted pulse electric current and time lag of the torsion wave can accurately determine the position of the float is located, namely on the surface of the liquid position.

Structure:

1, the standardized design, the structure is very simple, only consists of three parts:

Inspcetion in 2, 360 degrees;

3, sensors (pressure magnetic sensor and sensing tube);

4, laminate and the intelligent electronic device, intelligent programming, with LCD display, can show the overall level, interface level, and the temperature of the output signal, the actual liquid level value, temperature, and with the actual level of the deviation of the value, the device is easy to order spare parts and reduce the amount of spare parts.

Function characteristics:

1, the high accuracy: 0.01% of the full scale;

2, calibration is very simple, no real standard, just press the button or using the HART protocol;

3, for to or forget calibration values, without having to check;

4, with double chamber structure, electronic parts and terminals are independent;

5, for not to occur any error in drift and the following parameters: dielectric constant changes, gas phase component change, changes in temperature, pressure change;

6 23 m, measurement range;7, can simultaneously measure the overall level and/or interface level, temperature and output;

Minimum 8, interface measurement proportion difference: 0.03 g/cm3;

9, pressure range: biggest 207 bar, the standard is 66 bar;

10, temperature range is - 196 ℃ to 196 ℃.

11, inside this RFI/EMI filter;

12, can replace differential pressure type, capacitance type, ultrasonic type, radar type, outer buoy type, nuclear type, band steel or steel servo type liquid level transmitter, etc.

The main technical parameters:

1, digital signal output liquid level sensor;

2, oil level and water temperature data, one to five output;

3, measuring range: 0.2 ~ 6 m;

4, the repeat precision: better than 0.001% FS.

5, non line: 0.05% FS.

6, distinguishing rate: 150 microns;

7, the output mode: Rs - 485;

8, power supply: 15 ~ 30 VDC;

9, explosion-proof grade: Exd Ⅱ BT5 Exia Ⅱ AT5 Exia Ⅱ BT5;

10, temperature coefficient: rod: - 40 ℃ ~ 120 ℃;Electronic storehouse: - 20 ℃ ~ 75 ℃;

11, working pressure: floating ball: 3.2 MPa;12, the rod material: 0 cr18ni9, 1 cr18ni9ti.

Areas of application:

1, all kinds of oil, liquefied petroleum gas storage tank of liquid level, interface and temperature real-time measurement and monitoring;

2, gas reservoir management measurement and monitoring;

3, biochemical and pharmaceutical industry of various kinds of tank process control and monitoring;

4, food and beverage processing all kinds of storage tank and liquid level of the process control, interface and measure temperature measurement and monitoring;

5, water treatment and environmental protection in the process of industrial level, interface and temperature measurement and monitoring.

Selection table:

Note: 1, please indicate the flange when matching flange material matching other specifications of the flange, please provide detailed drawings;

2, the need to provide other connection thread is in the order of money.