Magnetoelectric smart meter

Products overview:

ZW series - LUCHMagnetoelectric smart meterFlow meter is a kind of speed type, is a collection of signal detection and intelligent microelectronics technology in the integration of high-tech mechanical and electrical products.Same time vortex flowmeter and electromagnetic flowmeter and the advantages of two kinds of instrument, have no moving parts, measuring stability.Flow meter is calculated by the sensor and the meter of two parts, as well as make a one-piece, can also be split type.And can be used to place no power supply is used.Can measure the 0-100 ℃ conductive liquid, including water, industrial water, civil water), strong acid, alkali, salt and other corrosive liquid, pulp, mud, FeiWuShui and volume flow of solid liquid two phase suspension.

Second, the working principle:

ZW series - LUCH magnetoelectric intelligent flowmeter is based on Faraday magnetoelectric induction and the principle of combining the karman vortex street, as shown in figure 1.Set in the inner cavity flow passage of the flow sensor a flow direction of medium and the measured vertical triangular cylinder (spiral), and have the magnet in the outer wall of the downstream components as well as the corresponding electrode component.In this way, can be formed a strong magnetic field around the electrode.When greeting through the vortex occurred body will alternately on each side of its downstream produced two series of rules of staggered vortex.Due to the movement of the spiral cutting the magnetic lines of force, in the medium flow field is generated waveform and frequency of vortex induced electromotive force, the electromotive force by the detection electrodes for electrical signals.Practice has proved that in a certain velocity range of vortex frequency is proportional to the flow.

From display (header) input electrode of high frequency oscillation by vortex frequency modulation signal, modulation after operation on high frequency signal into the microcontroller and processing, accurate detection of traffic signals, and then into the single chip microcomputer processing flow operation and function.Single-chip computer work-stations that have the time and date program, by the large capacity serial reservoir will be stored, the accumulation of daily traffic and record the date, the cumulative flow becomes the traffic all day.Finally, the date of the LCD display shows total flow and transient flow.Or keys can be searched by day traffic operation, the flow of day show a certain date.

Applications:

ZW series - LUCH magnetoelectric intelligent flowmeter is mainly used in oil field high pressure water injection, water, pumping station of oily wastewater treatment and water supply and drainage pipeline in the inlａnd waters flow measurement.It is also widely used in chemical industry, electric power, medicine, paper making and environmental protection industries and urban supply and drainage engineering of conductive liquid volume flow measurement in a closed pipeline.

But is not suitable for measuring gas, oil and organic solvent such as conductive medium flow.

Four, the main features:

1, there is no mechanical wear and tear flow sensor is solid in construction and reliable, and its cavity flow passage don't set any moving parts, also do not have the lining material, can avoid mechanical wear and tear, can greatly improve the service life.

2, easy to use, easy to remove the flow sensor adopts detachable type or insert type structure, convenient maintenance and periodic verification of error.

3, shock resistant interference due to the adoption of advanced magnetoelectric digital detection technology, the flow resistance to vibration and particularly strong anti-interference ability, than ordinary vortex street flowmeter for five to eight times.

4, the power consumption of the micro meter circuit power consumption of only 0.24 mW, and adopt the four common 5 alkaline batteries as power supply, can use two consecutive years of time.

5, resistant to high temperature and high pressure flow meter in direct contact with the media parts adopt the high temperature resistant material, make the measured medium temperature up to 120 ℃ (high temperature), and has formed series products, the nominal diameter of 3/4 "- 300 mm, nominal pressure PN1-42 mpa.

6, multi-function meter can display day, instantaneous flow and traffic flow or class flow, date, and storage of 2600 history day (class) traffic data for reference.In addition, still can output pulse signals or analog signal, have add the RS - 485 communication interface.

7, stable performance, high precision using advanced measuring principle and circuit design, high reliability and took eight period of nonlinear error correction processing flow, makes the gauge more stable performance, high measurement precision, long service life.

Five, the conditions of use:

1, the ambient temperature: - 30 ℃, 60 ℃

2, relative humidity: 85% RH or less

3, applicable medium: water, oily wastewater, acid alkali liquor

4, medium temperature: - 20 ℃ -- 120 ℃

Six, the technical parameters:

1, measure the diameter: DN15-12;

2, work stress: 1-42 mpa;

3, the measuring accuracy: + / - 1%;

4, signal output: 4-20 ma;Pulse output.

5, pulse output: 0-1000 hz;

6, communication interface, RS485 interface;

7, power supply: DC24V.

Seven, disassembly and installation requirements:

1, remove and install the magnetoelectric flow timing to should take put down gently, excessive force may cause the sensor failures or measurement inaccurate;

2, flowmeter for liquid flow direction arrow direction, magnetoelectric meter components shall be installed in strict accordance with the requirements of the order and direction;

Installation requirements:

1, the flowmeter can be horizontal, vertical installation, vertical fluid when installation must flow from bottom to top.Liquid should be full of pipes, can not have bubbles.

2, liquid flow direction when installation should be consistent with instructions flow direction arrow on the inner side of outer casing of flow meter, flowmeter upstream side length should be at least 20 times the diameter of straight pipe, the downstream end shall be not less than five times the diameter of straight pipe.

3, flow meter should be from the electromagnetic field, such as can't be avoided, the necessary shielding measures should be taken.

4, in order to does not affect the normal liquid delivery, maintenance should be in the installation of flow meters place, install bypass pipe.

5, flowmeter open when installation, please use waterproof measures.

6, explosion-proof type flowmeter, must disassembling instrument shell in a safe place.

Eight, the parameter list:

Nine, selection of code:

Ten, design selection and ordering information:

1, indicate the diameter of the magnetoelectric meter need, connecting method, flow range, pressure level, with length and the connection can be made according to user requirements.

2, if you need to remote the separation of transmission distance shall be indicated when ordering.

After-sales service commitment:

1, my company's products sold by flowmeter appeared quality problem within 12 months, responsible for free maintenance.

2, the warranty period, any quality problems such as the products of our company, my 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.