Magnetostrictive level transmitter

Products overview:

ZW - CZS seriesIs made using magnetostrictive principle of high precision, long stroke position measurement sensor.By pulse circuit, the transmission line, the product of echo signal unit, structure and protective casing, with high precision, stability and reliable, long life, easy installation, selection of multiple output way etc, it can not only measure the linear displacement of moving object, and can give the displacement and speed of the moving object analog signals.Because adopts book of non-contact measurement method, sensor, stable performance and long service life, choose a variety of output modes.And therefore is widely used in petroleum chemical industry, food, water treatment, environmental protection, dye, pesticide, papermaking, reservoir, hydraulic machinery industry equipment.

Second, the working principle:

ZW - CZS series magnetostrictive liquid level transmitter, the 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 .Because of the float is equipped with a set of magnets, so float and produce a magnetic field.When asked about the current pulse magnetic field interact with float field, create a chain of "twisted" or "return", "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 magnetostrictive liquid level transmitter using 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:

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.

Five, the main features:

1, non-contact measurement;

2, high precision, high stability, high reliability;

3, long service life;

4, a variety of signal output mode choice;

5, with the reverse polarity protection function;

6, lightning protection, radio frequency interference;

7, structure compact, strong adaptability to environment;

8, do not need regular heavy label and maintenance;

9, can be detected with pressure or without pressure tank liquid level;

10, isolation, explosion-proof (optional);

11, installation is convenient.

Six, the technical parameters:

1, scope of range: 0-12 meters, (can be customized according to customer's require);

2, work power: 24 VDC;

3, the signal output: standard 4-20 ma current signal;

4, measuring accuracy: + / - 1 mm or 0.3% FS (current output type);

5, working pressure: 4.0 Mpa or less;

6, medium requirements: acuity 0.5 g/cm3 density, viscosity of 0.005 or less Pa. S.

7, working temperature: T1:0 ~ 70 ℃, T2:25 ~ + 80 ℃, T3: - 40 ~ + 85 ℃;

8, repeatability error: better than 0.01% FS.

9, resolution: better than 0.01% FS.

10, hysteresis: better than 0.01% FS.

11, temperature influence, plus or minus 0.007% FS / ℃;

12, zero adjustment range: 20% FS.

13 and full range adjustment range: 20% FS.

14 and frequency response time: 0.2 ~ 5 ms (according to the size range and decide);

15, connection: flange connection;

16, explosion-proof marks: flameproof: EXd Ⅱ BT4;

17, shell protection grade: IP65;

18 and 34 mpa pressure rod or less.

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);

Air plug (does not apply to flameproof products) terminals;

6, explosion-proof marks: flameproof EXdIIBT5;

7, 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, parameter table:

Eleven, selection of coding:

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.