Electromagnetic Flowmeter DN200 With Display Header or Convertor

1. Introduction

MLF electromagnetic flow meter, composed of sensor and converter, works based on Faraday’s law of electromagnetic induction law. It is used to measure electrical conductivity of liquid or solid. Generally, the electrical conductivity should be over 5υS/cm(electrical conductivity of tap water, raw water is about 100～500υS/cm),It can also be used to measure various media like acid, alkali, saline solution, paper pulp or pulp and so on. But these media can’t contain a lot of magnetic materials and bubbles.

MLF electromagnetic flow meter is a kind of instrument which is used for measuring the flow conductivity liquid. The meter is widely used in flow measuring of Metallurgy, Chemical Industry, Paper Industry,Environmental Protection, Oil Industry, Textile Industry, Food Industry and City Administration, Water Works,etc.

2. Quick Details

1). It is high resistance, fast response design can make undistorted collection of weak signal and fast response to the flow changes. Its range rate can reach 100:1.

2). It has the function of low conductivity measurement.

3). It has the consistency of converter’s interchange, which can avoid input parameters repeatedly.

4). Wide range of power supply mode is available (DC: 18V-36V/AC: 85V-265V).

5). It is the first domestic company that adopts the function of saving settings before delivery,which can avoid the loss of the parameters.

6). It adopts the international leading excitation technology, which circuit is simple, stable,and reliable.

7). It has the function of infrared remote control and button operation so as to make the operation more convenient.

8). It provides the function of zero correction of sensor and automatic zero adjustment.

9). It has Chinese, English, Korean, Polish, Turkish, French and Portuguese languages for option to satisfy different customers’ requirements.

3. Specification

4. Selection of Electrode Materials

5. Dimensional Sketches

a. Dimension of Converter

Divided Type

Integrated Type

Battery Powered Type

b. Dimension of Sensor

6. Configuration

7. Instrument Detection & Maintenance

Electromagnetic flow converter has self-diagnosis function. In addition to the power and hardware circuit fault, The system also give alarm to other faults in general usage. These information are given accordingly prompts in the lower right of the screen.

1. Maintenance and repair
a) Sensor installation site should be consistent with the section four requirements, Please keep the housing clean and tidy;
b)Transmitter should be placed in a clean, ventilated, dry place;
c)Need to inspect every two years, for high precision users, instrument need to be submitted to censorship.

2. Transportation and storage
a)The instrument must be packed before transportation, be carefully handled when loading and unloading.
b)Storage site must be dry, ventilated, avoid corrosive gas erosion, the ambient temperature is not too low or too high;
c)Storage time better not exceed three years.

3,Unpacking and checking
a) The packing can’t be opened with heavy hammer, and should be careful not to damage the instrument
b) Check the content carefully according to the packing list.

8. Advantages & Disadvantages

There are numerous benefits to using electromagnetic flowmeters to perform fluid flow measurements. They are generally non-invasive and have no moving parts, reducing the risk of breakdowns and the frequency of repairs. A decrease in flowmeter pressure is also usually no greater than that of an equivalent pipe length, reducing the piping costs. Some of the other major advantages provided by magnetic flowmeters include:

• Power usage is relatively low, with electrical power requirements as low as 15 watts for some models.
• They are mechanically obstructionless and can be equipped with abrasion-resistant liners, making them effective for measuring slurries and other erosive fluids.
• They are capable of dealing with most kinds of acids and bases, as well as water and water-based solutions, due to lining materials that are both insulators and have corrosion resistance.
• Relatively small amounts of electrode metals are needed for magnetic flowmeters.
• They can measure both very low flows and very high volume flow rates, with a minimum diameter of roughly 0.125 inches and a maximum volume of up to 10 cubic feet.
• They can usually measure multidirectional flow, either upstream or downstream.

Despite these advantages, magnetic flowmeters also present certain difficulties for flow rate measurement. These flowmeters are only effective on conductive fluids, and materials such as unmixed hydrocarbons and gases cannot be measured. However, magnetic materials themselves may also present problems, as hydrodynamic effects can alter the normal flow pattern and disturb the velocity rate enough to interfere with operations. Depending on their size and capacity, magnetic flowmeters can be relatively heavy, and those with higher corrosion and abrasion resistance can be expensive.