Magnetic Battery Operated Flow Meter for Water and Wastewater
1. Introduction
The MLF electromagnetic flow meter is based on Faraday's law of electromagnetic induction and consists of sensors and converters. Used to measure the conductivity of a liquid or solid. In general, its conductivity should be greater than 5μs/cm (tap water, raw water conductivity of about 100 to 500μs/cm), can also be used to measure acids, alkali, brine, pulp or pulp and other media. However, these media must not contain large amounts of magnetic substances and bubbles.
MLF electromagnetic flow meter is an instrument for measuring liquid flow. Widely used in metallurgy, chemical, paper, environmental protection, petroleum, textiles, food, urban management, water plants and other industries flow metering.
2. Features
MLF electromagnetic flowmeter is explosion-proof design.
The function of low conductivity measurement.
There are 9 language options to meet the needs of different customers.
There are self-regulating functions and self-checking.
Different outputs are optional: Hart, RS485,Profibus, 4-20mA, frequency, pulse.
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. Dimensional Sketches
a. Dimension of Converter
Divided Type
Integrated Type
Battery Powered Type
b. Dimension of Sensor
| Pipeline Diameter | Dimension |
| L | W | H |
| 15 | 160 | 95 | 130 |
| 20 | 160 | 105 | 137 |
| 25 | 160 | 115 | 150 |
| 32 | 160 | 135 | 160 |
| 40 | 200 | 145 | 175 |
| 50 | 200 | 160 | 185 |
| 65 | 200 | 180 | 205 |
| 80 | 200 | 195 | 215 |
| 100 | 250 | 215 | 235 |
| 125 | 250 | 245 | 275 |
| 150 | 300 | 280 | 300 |
| 200 | 350 | 335 | 355 |
| 250 | 400 | 400 | 405 |
| 300 | 500 | 455 | 460 |
| 350 | 500 | 515 | 520 |
| 400 | 600 | 575 | 580 |
| 450 | 600 | 635 | 630 |
| 500 | 600 | 710 | 685 |
| 600 | 600 | 835 | 795 |
| 700 | 700 | 905 | 910 |
| 800 | 800 | 1020 | 1030 |
| 900 | 900 | 1120 | 1120 |
| 1000 | 1000 | 1245 | 1250 |
| 1200 | 1200 | 1465 | 1470 |
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. Instrument Testing & Maintenance
Electromagnetic flowmeter has self-diagnosis function. In addition to power supply and hardware circuit faults, the system also alarms other faults in general use. These messages are prompted in the bottom right corner of the screen.
Maintenance and repair
A) The sensor installation site shall meet the requirements of Section 4, and please keep the shell clean;
B) The transmitter shall be placed in a clean, ventilated and dry place;
C) The instrument shall be inspected every two years. For high-precision users, the instrument shall be submitted for review.
Transportation and storage
A) The instruments must be packed well before transportation and handled with care during loading and unloading.
B) The storage site must be dry and ventilated to avoid corrosive gas, and the ambient temperature should not be too low or too high;
C) Storage time should not exceed three years.
3. Open the box for inspection
A) The package must not be opened with a heavy hammer. Care must be taken not to damage the instrument
B) Carefully check the contents according to the packing list.
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Anti Alkali IP65 DN100 Wastewater Magnetic Flow Meter Images
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