Intelligent magnetostriction level meter
Intelligent magnetostrictive liquid level gauge products are produced with imported chips and advanc…
Description：
Products overview:
ZW - CZS seriesIntelligent magnetostrictive liquid level meterWith 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.
The level gauge is suitable for high precision requirement of clean liquid level measurement, the precision of 1 mm, new product precision can reach 0.1 mm.Can also be applied to the boundary between two different liquid level measurement.Explosion-proof design, suitable for dangerous situations, intelligent electronic circuit design can calculate the volume;Moving parts to float, low maintenance cost.
Second, the working principle:
ZW - CZS series intelligent 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.There is a group of circular and 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.
Applications:
ZW - CZS series intelligent magnetostrictive liquid level meter because of its function expansion, the use of more flexibility and stronger environmental suitability.Suitable for hydrology and water resources, water, petrochemical, electric power, biological agents, grain and oil, brewing and other industries a variety of liquid level and the accurate measurement of the interface.
Four, structural components:
Using standardized design, the structure is very simple, only consists of three parts:
1, the inspcetion inside, 360 degrees;
2, sensors (pressure magnetic sensor and sensing tube);
3, thanks to the intelligent electronic device, the intelligent programming, with LCD display, can show the overall level, interface level, and temperature of output electric signal, the actual liquid level value, temperature, and with the actual level of the deviation of the value, the device is convenient user order spare parts and reduce the amount of spare parts.
Five, the main features:
1, reliability: the adoption of waveguide magnetostrictive principle, no mechanical moving parts, therefore, no friction, no wear and tear.The converter closed in stainless steel tube, and measure the medium non-contact, sensor reliable operation, long service life.
2, high precision, due to the magnetostriction waveguide pulse work, work by measuring the initial pulse and termination of the pulse time to determine the measured displacement, so the measurement precision is high, the resolution is better than 0.01% FS, it is difficult to achieve with other sensor's precision.
3, good security, magnetostrictive liquid level meter of explosion-proof performance is high, the explosion-proof, use safety, especially suitable for measurement of chemical raw materials and flammable liquids.You do not need to open the cover when measuring, avoid artificial measurement of insecurity.
4, easy to install and maintain simple, magnetostrictive liquid level meter, generally through the roof for pipe installation, especially suitable for the underground storage tank and tank installation has was put into operation, and during the installation process does not affect the normal production.
5, easy to automated systems work: magnetostrictive liquid level meter of secondary instrument with a standard output signal, facilitate microcomputer for signal processing, easy to implement networking work, improve the degree of automation of the whole measuring system.
Six, the 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.
Seven, installation requirements:
1, the magnetostriction is usually installed at the top.
2, sheath maerial installation place there can be no interference, such as mixer, into the mouth.
3, sheath maerial of bending force, not allowed by the larger impact or vibration.Sheath maerial inspcetion should be free to slide up and down, not is blocked by other objects.
4, level gauge must be installed vertically, the installation Angle shall not be greater than 5 degrees.
5, the level of the steam and in inflammable, explosive, corrosive liquid such as occasion when using, must have protective measures to protect.
6, liquid level meter connection cables must avoid high-power power, radio frequency signal source, and other such as noise of the transmission line.
Eight, selection considerations:
1, level gauge type selection should be consistent with the medium environment, including environmental temperature, pressure, vibration, impact, structure, material compatibility with medium, etc.
2, measured medium at high temperature (100 ~ 200 ℃), recommend selecting out-of-band buoy type probe (selection table option B), using the side flange installation.At higher temperature (200 ~ 300 ℃), recommend selecting out-of-band buoy side bundle type probe (selection table option C), using the side flange installation.
3, measuring sheath maerial of both ends up and down with dead zone, choosing range should be considered.
4, level gauge the size of the commonly used stainless steel inspcetion for 45 * 56 * Ф Ф 15, should choose (and more flange connection.Liquid level gauge for selection of screw thread connection, the user need since with flange or bracket installation.
Nine, 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.
Ten, parameter table:
Measuring range | 200mm~6000mm(hard rod structure);3000mm~20000mm（Hose structure） |
The output signal | 4 ~ 20 ma (with HART communication protocol) or PROFIBUS PA and FF HI fieldbus protocol |
Voltage range | 12~36Vdc |
The rated voltage | 24Vdc |
The accuracy of | ±0.05%FS |
The resolution of the | ≤0.02%FS |
nonlinear | ≤0.02%FS |
The temperature influence | Plus or minus 0.01% or less / ℃ |
Insulation resistance | > 20 m Ω |
According to | The LCD display |
Pressure of work | Routine floating ball pressure 1.6 MPA, zui can resistance to 3.2 MPA |
The environment temperature | - 25 ~ 70 ℃ |
Environmental humidity | 5% ~ 95% |
Medium temperature | - 40-300 ℃ |
Protection grade | IP66 |
Explosion-proof grade | ExiaIICT3~T4 , ExdIICT4~T6 |
The power consumption of the product | ≤30mA |
The corresponding time | < 1 second |
Guide bar material | 304, 316 or custom |
Floating ball material | 304, 316, or nitrile butadiene rubber |
The shell material | Stainless steel, aluminum alloy or custom |
Cable parameter | A M20 * 1.5 cable entry, a blind M20 * 1.5 |
The connection method | 2 core shielded wire terminal connection |
Eleven, selection of coding:
ZW-CZS | Wei measurement in magnetostrictive liquid level meter () | ||||||||
code | The product type | ||||||||
1 | The conventional type | ||||||||
2 | Type of health | ||||||||
3 | Anti-corrosion type | ||||||||
code | The output signal | ||||||||
A | 4-20mA | ||||||||
B | 0-5V | ||||||||
C | 0-10V | ||||||||
D | RS485 two wire digital signal | ||||||||
E | SSI gray code signal | ||||||||
code | Measured medium density (g/cm3) | ||||||||
1 | 0.45-0.51 | ||||||||
2 | 0.51-0.65 | ||||||||
3 | 0.65-0.75 | ||||||||
4 | 0.75-0.9 | ||||||||
5 | 0.9-1.15 | ||||||||
6 | 1.15-1.8 | ||||||||
code | The liquid part of the material | ||||||||
E | 304 stainless steel | ||||||||
F | 316 stainless steel | ||||||||
G | teflon | ||||||||
code | Process connection | ||||||||
8 | Flange connection | ||||||||
9 | Clamp connection | ||||||||
0 | Threaded connections | ||||||||
code | Whether or not to bring a live show | ||||||||
N | Not a live show | ||||||||
E | With LED display on site | ||||||||
C | With the LCD display | ||||||||
code | Product level | ||||||||
6 | ordinary | ||||||||
7 | Explosion-proof type | ||||||||
code | Scale range | ||||||||
L= | 200-20000mm | ||||||||
ZW-CZS | 1 | A | 1 | E | 8 | N | 6 | L=1000 | Selection for |
Note:1, please indicate when matching flange flange material matching other specifications of the flange, please provide detailed drawings;
2, you need to provide other connection thread is in the order of money.
Twelve, design selection and ordering information:
1, model specifications;
2, measurement range;
3, working pressure, and temperature;
4, plant material;
5, special requirements;
6, whether level device matching supply vessel flange, bolts, nuts, valves and fittings such as sealing washer, so that the correct selection.
After-sales service commitment:
Level 1, I companies sell products within twelve months appear quality problem, is responsible for free maintenance.
2, the warranty period, such as the products of our company,,, any quality problem, our company is responsible for free repair or replacement.
3, the warranty period, such as user improper use, damaged products, my company is responsible for the maintenance, charge damage parts cost.
4, after the warranty period appear quality problem, my company is responsible for the maintenance, charge damage parts cost.
5, such as user need to my company site services, to users in the province I company service personnel to reach the site within 12 hours, fujian association of foreign languages and user reach the site within 48 hours.
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