Battery Operated Magnetic Flowmeters Acid Resistant Flow Meters

Product Specification

                     Battery Operated Magnetic Flowmeters Acid Resistant Flow Meters

1. What are Electromagnetic Flow Meters?
Electromagnetic flow meters, also called mag meters or magnetic meters, are volumetric flow meters which do not have any moving parts to wear, reducing the need for maintenance or replacement. Accuracy over a wide flow range can be as good as ± 0.5% of flow rate or better.

They feature an obstruction-free design which eliminates flow impediment, and operate with electrodes embedded on opposite sides of the flow tube or sensor to pick up the signal. Mag meters perform extremely well in many municipal and processing applications, and have become the meter of choice for measuring conductive liquids such as water or slurry.

2. Working Principle

The principle of the sensor is based on Faraday's law of electromagnetic induction. It is installed a pair of detection electrodes on the pipe wall,where the measurement pipe axis and magnetic field lines are vertical. When the conductive liquid cuts magnetic field lines and produces induced electromagnetic force.Which can be measured by the two electrodes on the meter pipe.The result can be calculated by formula: Induced electromotive force,(flow signal)

E=KBDV
E--Induced electromotive force,V;
K--meter constant;
B--Magnetic flux density,T;
D--Internal diameter of measuring pipe,m;
V--Average velocity of pipe section,m/s.
1MLF Series Electromagnetic Flow Meter
Assume the volume of liquid as qv(m3/s),qv=πD2V/4),so in the formula E=(4kB/πD)qv=kqv, K is meter constant,K=4kB/πD.
Actually, the electromagnetic flow meter consists of two parts, transmitter and sensor, the measuring electrodes inspect the electromotive force, and transmit to the converter, the converter provides excitation current. E is usually called a flow signal, after processing the flow signal by converter, output 4~20 mA/pulse(or frequency) signal which is proportional to the flow rate, then the flow rate recording,adjusting can be achieved.

3. Advantages of using Electromagnetic Flow Meters
The main advantages of using magmeters is that they require less maintenance, and can be ordered for very large line sizes. Some can be installed with a simple hot tap which does not require shutting down the line. Mag meters also have the benefit of adding a level of trust for consumers: they hold the service provider accountable for the actual water being produced and/or billed. These efforts will assist with preservation of our water resources while improving profitability for the utility.

4. Disadvantages of using Magnetic Flow Meters
It depends on the meter itself. Some flow tube meters have a liner which can separate from the meter causing system damage and requiring maintenance. Mag meters don't work on non-conductive fluids such as oils, steam or gas.

5. Specification

6. How to select and install a magnetic flow meter?

The key questions which need to be answered before selecting a magnetic flow meter are:

• Is the fluid conductive or water based?
• Is the fluid or slurry abrasive?
• Do you require an integral display or remote display?
• Do you require an analog output?
• What is the minimum and maximum flow rate for the flow meter?
• What is the minimum and maximum process pressure?
• What is the minimum and maximum process temperature?
• Is the fluid chemically compatible with the flow meter wetted parts?
• What is the size of the pipe?
• Is the pipe always full?

7. Configuration

8.Company Profile

Melan Measurement & Control Instruments is located in Shanghai City. It is a high-tech manufacturer specialized in the design, development, manufacturing and sale of measurement and control instruments.

Our products are widely used in various fields, including electricity, chemical industry, metallurgy, brewing, oil and gas, textile, water conservancy, environmential protection, etc.

We own independent-courtyard modemized manufacturing workshops and an open office building. Melan has accumlated production and management experience in instruments from European and American and domestic famous companies.

We own first-class talent team, and all the products have reached advanced level at home and abroad. We provide our customers with complete and professional test control solutions and high-tech and high-quality products.

Melan is your reliable friend and partner. We are willing to try our best as dedication and perfection as motivation.

9.FAQ

Q: How long will you give me the reply?
A: We will contact you in 5 hours as soon as we can.

Q: What is the warranty of your prducts?
A: Our warranty is 12 months after the shipping date.

Q: What is the lead time of your products?
A: Normally our factory lead time is 10-12 working days.

Q: Can I OEM your products?
A: OEM and ODM customization are welcomed.

Q: What is your MOQ?
A: We have no MOQ limit, small quantity order is acceptable.

Q:What is the transport?
A: Express such as DHL, FedEx, UPS for freight prepaid, and we can also use your own courier account to do the freight collect. For more goods we can arrange by air or by sea.