High precision magnetostriction level gauge
High-precision magnetostrictive liquid level meter with low power consumption MCU and high precision…
Description：
Products overview:
ZW - CZS seriesHigh precision magnetostrictive liquid level meter(hereinafter referred to as magnetic feet), was made using magnetostrictive principle of high precision, long stroke displacement transducer of absolute position measurement.Not only can measure the linear displacement of moving object, and the position and velocity of moving object simulation signals or level, depending on the output signal is divided into analog and digital two kinds.Flexible power supply way and extremely convenient wiring method and the multiple output in the form can meet the requirements of all kinds of measurement, control, detection;Work long life and good environment adaptability, reliability, effective and stable work.
Second, the working principle:
ZW - CZS series high precision magnetostrictive liquid level meter, signal detection unit ask current pulse, the pulse along the waveguide wire to create a circular pulse magnetic field.Outside the sensor tube is equipped with float, suspended in change under the head of mobile.Because the float is equipped with a set of * magnets inside, so float at the same time produce a magnetic field.When asked about the current pulse magnetic field interact with float field, produce a pulse "twisted" or "return" pulse, "return" pulse wire upward along the waveguide transmission, spread to the vibration pickup.According to the "return" in pulse and ask current pulse time, calculate the actual location of the float, which can be accurately measured liquid level.
Three, structural components:
ZW - CZS series of standardized design, the structure is very simple, only consists of three parts:
Inspcetion in 1, 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.
Four, applications:
ZW - CZS series high precision magnetostrictive liquid level meter installation, debugging and convenient.Is widely used in petrochemical, electric power, metallurgy, steel mills, paper making, now goods processing, water treatment, battery, etc.
Five, the main features:
1, high precision continuous measurement and display the height of liquid level, the output of long-term, stable and reliable;
2, realized the automation and scientific management, without human all-weather monitoring;
3, installation convenient, installed flange or thread connect directly;
4, compactness, and strong adaptability to environment;
5, don't need regular label and maintenance;
6, a variety of signal output mode selection;
7, lightning protection, prevent radio frequency interference;
8, long service life.
Six, the technical parameters:
1, scope of range (mm) : 80 ~ 5000;
2, the output form/working voltage (three-wire system) : 0 ~ 5 VDC to 24 VDC / + + 10%;
0～10VDC/+24VDC±10%；
（-5 ～+5）VDC/+15VDC±10%；
（-10～+10）VDC/+15VDC±10%；
4 ～20mADC/+24VDC±10%；
3, working temperature: - 40 ~ + 85 ℃;
4, storage temperature: - 40 ~ + 100 ℃;
5, ripple, low noise environment is less than 2 MVRMS;
Servo working condition (80 ~ 1600 mm) is less than 6 MVRMS;
Servo working condition (1600 ~ 5000 (MCM) is less than 10 MVRMS.
Seven, structure features:
1, the rod material: 1 cr18ni9 (304);316 l stainless steel;304 outsourcing ptfe anti-corrosion casing (anti-corrosion type);
2, electronic capsule shell material: 1 cr18ni9ti;1 cr18ni9ti cover a nylon cover (anti-corrosion type);
3, the connection form (threaded) : M18 x 1.5;M20 x 1.5;3/4-16 unf) (English)
4, flange material: 1 cr18ni9ti;Ptfe (anti-corrosion type);
5, lead way: PVC shielded cable (the default length: 2.8 m, can also be provided according to user requirements);
6, aviation plug (does not apply to flameproof products) terminals;
7, explosion-proof marks: flameproof EXdIIBT5;
8, shell protection grade: IP65.
Eight, installation requirements:
1, the magnetostrictive liquid level meter 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.
Nine, 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.
Ten, 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.
Eleven, 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 |
Twelve, 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.
13, 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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