Water Type Flow Meters Magnetic Flow Meters Clean Dirty Waste Water
Model Number:MLF
Minimum Order Quantity:1pc
Delivery Time:7-10 working days
Payment Terms:T/T
Place of Origin:China
Price:Negotiation
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Location:
Shanghai Shanghai China
Address:
No.21, Lane 697, Guangfulin Road, Songjiang District, Shanghai, China
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Product Details
Water Type Flow Meters Magnetic Flow Meters Clean Dirty Waste Water
1. Introduction
MLF electromagnetic flowmeter works according to Faraday's law of electromagnetic induction, and is composed of sensors and converters. Used to measure the conductivity of liquid or solid. In general, its conductivity should be greater than 5μs/cm (tap water and raw water conductivity is about 100 ~ 500μs/cm), and it can also be used to measure acid, alkali, brine, pulp or pulp and other media. However, these media cannot contain a large amount of magnetic substances and bubbles.
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.
MLF 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. Specification
| MLF Type | Divided Type | Integrated Type | Explosive Proof Integrated Type | Battery Powered Type | Heat Energy Type |
| Accuracy | ±0.2% or ±0.5% | ||||
| Pipeline Diameter | DN10-DN2000 | DN10-DN600 | DN25-DN2000 | ||
| Flange | GB, ANSI, JIS, BS, Others | ||||
| Pressure | DN10-DN600 1.0 1.6 2.5 4.0MPa | ||||
| DN700-DN2000 0.6 1.0 1.6MPa | |||||
| Liner Material | CR, PTFE, PU, Hard Rubber, PFA, FEP(F46) | ||||
| Conductivity | ≥5µs/cm(Please contact us if it is less than 5µs/cm) | ||||
| Electrode | 316L SS, Hb, Ta, Ti, Hc, Tungsten Carbide, Others | ||||
| Protection Class | IP65, IP66, IP67, IP68 | ||||
| Medium Temperature | -25~180℃ (Please refer to liner material) | -25~80℃(Please refer to liner material) | -25~180℃ (Please refer to liner material) | ||
| Ambient Temperature for Accuracy Influence | <±0.1%/10℃ or <±0.25%/10℃ at the ambient temperature of -25~60℃ | ||||
| Repetability | ≤±0.1% or ±0.25% | ||||
| Analog Output Error | ≤±0.02mA | ||||
| Velocity | 0.3~10m/s | ||||
| Electrical connection | M20x1.5 Seal Cartridge, GB1/2, NPT1/2 | ||||
| Output | 4-20mA, Pulse, RS485, Hart, Profibus | ||||
4.Selection of Electrode Materials
| 316L | Good resistance to the corrosion of nitric acid, <5% sulfuric acid under room temperature, acetic acid, alkaline fluid, sulfite under certain pressure, seawater and scetic acid, etc. It can be widely used in petrochemical urea, vinylon. |
| Hb | Good resistance to the all the concentration of hydrochloric acid below the boiling point, also resistance tothe corrosion of non-oxidizing acid, alkali, salt like sulfuric acid phosphoric acid hydrofluoric acid, organic acids. |
| Hc | Resistance to the corrosion of oxidizing acids like metric acid, mixed acid. The mixture of chromium acid and sulfuric acid, and salts of oxidative, like Fe3+, Q3+, and some other oxidants, like hypochlorite salt solution higher than normal tmperature and seawater. |
| Ti | Resistance the corrosion of seawater, various chlorides, hypochlorite, oxidizing acid(including fuming nitric acid), and organic acid or alkali, but don't be resistance to the corrosion of pure reducint acid(like sulfuric acid, hydrochloric acid). But if acid includes oxidants(like nitric acid, Fe3+, Q3+), the corrosion resistance will decrease. |
| Ta | Good corrosion resistance similar to glass. Resistance to the corrosion of chemical medium(including hydrochloric acid and fumiing sulfuric acid), but can not be used for sodium hydromide fluid. |
| Pt-Ir | Have good corrosion resistance of all acid, and can be resistance to the corrosion of alkali, all salt except aqua regia, ammonium slat and few other medium |
| Tungsten Carbide | For pulp and sewage, good resistance to solid particle interference. |
5. Configuration
| MLF Series Electromagnetic Flow Meter Configuration | |||||||||||||||||||||||
| Model | MLF | ||||||||||||||||||||||
| Sensor Installation | S | Flange Type Sensor | |||||||||||||||||||||
| C | Insertion Type Sensor | ||||||||||||||||||||||
| O | Others | ||||||||||||||||||||||
| Pipeline Diameter | 10 | 10mm | |||||||||||||||||||||
| 15 | 15mm | ||||||||||||||||||||||
| 20 | 20mm | ||||||||||||||||||||||
| ...... | |||||||||||||||||||||||
| 2000 | 2000mm | ||||||||||||||||||||||
| Electrode Installation | F | Standard Fixed Type | |||||||||||||||||||||
| Electrode Material | A | 316L SS | |||||||||||||||||||||
| B | Hb | ||||||||||||||||||||||
| C | Ta | ||||||||||||||||||||||
| D | Ti | ||||||||||||||||||||||
| E | Hc | ||||||||||||||||||||||
| F | Tungsten Carbide | ||||||||||||||||||||||
| G | Others | ||||||||||||||||||||||
| Liner Material | R | Rubber | |||||||||||||||||||||
| P | PTFE | ||||||||||||||||||||||
| O | Others | ||||||||||||||||||||||
| Pipe Material | B | 304 SS (Standard) | |||||||||||||||||||||
| C | 316 SS | ||||||||||||||||||||||
| Flange Type | G | GB (Standard) | |||||||||||||||||||||
| A | ANSI | ||||||||||||||||||||||
| J | JIS | ||||||||||||||||||||||
| B | BS | ||||||||||||||||||||||
| O | Others | ||||||||||||||||||||||
| Flange Material | A | 304 SS | |||||||||||||||||||||
| B | 316 SS | ||||||||||||||||||||||
| C | #20 Carbon Steel (Standard) | ||||||||||||||||||||||
| Cover Material | D | 304 SS | |||||||||||||||||||||
| E | 316 SS | ||||||||||||||||||||||
| F | Carbon Steel+ Epoxy Metallic Paint (Standard) | ||||||||||||||||||||||
| Matching Flange | 0 | Without Matching Flange (Standard) | |||||||||||||||||||||
| 1 | With Matching Flange | ||||||||||||||||||||||
| Ground Ring | 0 | Without Ground Ring (Standard) | |||||||||||||||||||||
| 1 | With Ground Ring | ||||||||||||||||||||||
| Rated Pressure | 10 | 1.0MPa | |||||||||||||||||||||
| 16 | 1.6MPa | ||||||||||||||||||||||
| 25 | 2.5MPa | ||||||||||||||||||||||
| 40 | 4.0MPa | ||||||||||||||||||||||
| Working Temperature | E | ≤60℃ | |||||||||||||||||||||
| H | ≤180℃(Divided Type) | ||||||||||||||||||||||
| Type | I | Integrated Type | |||||||||||||||||||||
| D | Divided Type | ||||||||||||||||||||||
| Output | P | Pulse | |||||||||||||||||||||
| A | 4-20mA | ||||||||||||||||||||||
| G | RS485 | ||||||||||||||||||||||
| H | Hart | ||||||||||||||||||||||
| Q | Others | ||||||||||||||||||||||
| Power Supply | 0 | 220VAC | |||||||||||||||||||||
| 1 | 24VDC | ||||||||||||||||||||||
| 2 | Battery-powered | ||||||||||||||||||||||
| Protection Class | 0 | IP65 (Integrated/Divided Type) | |||||||||||||||||||||
| 1 | IP67 (Divided Type) | ||||||||||||||||||||||
| 2 | IP68 (Divided Type) | ||||||||||||||||||||||
| Other Features | R | Heat Energy Function | |||||||||||||||||||||
| P | With PT1000 | ||||||||||||||||||||||
| B | Without PT1000 | ||||||||||||||||||||||
| Explosion Proof | 0 | None | |||||||||||||||||||||
| EX | Explosive Proof | ||||||||||||||||||||||
6.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.
7.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.
Water Type Flow Meters Magnetic Flow Meters Clean Dirty Waste Water
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