Compact Type Electromagnetic Flow Meter SS Material with 0.3 -
10m/s Velocity Range
1. Introduction
MLF electromagnetic flowmeter 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. Generally,
its conductivity should be greater than 5μS/cm (the conductivity of
tap water, raw water is about 100~500μS/cm). it can also be used to
measure various media such as acid, alkali, brine, pulp or pulp and
other medium. But these medium can not contain a large number of
magnetic substances and bubbles.
MLF electromagnetic flowmeter is an instrument to measure liquid
fluidity. Widely used in metallurgy, chemical, paper, environmental
protection, petroleum, textile, food, urban management, water
plants and other industries of flow measurement.
2. Features
MLF electromagnetic Flowmeter is explosion-proof design.
function of low conductivity measurement.
There are 9 language options to meet the needs of different
customers.
Have self-regulation function and self-examination.
different outputs are optional: hart, RS485 Profibus ,4-20 mA,
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. Selection of Electrode Materials
| Electrode Material | Main Performance |
| 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. 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 |
6. Instrument Detection & Maintenance
Electromagnetic Flowmeter has self-diagnosis function. In addition
to power and hardware circuit failures, the system also alarm other
faults in general use. The information is prompted in the lower
right corner of the screen.
1. Maintenance and repair
a) sensor installation site should meet the requirements of Section
4, please keep the shell clean;
b) transmitters shall be placed in a clean, ventilated, dry place;
c) need to be checked every two years, for high-precision users,
the instrument needs to be submitted for review.
2. Transport and storage
a) instruments must be packed before transportation, loading and
unloading should be carefully light.
b) storage place must be dry, ventilated, avoid corrosive gas
erosion, environmental temperature should not be too low or too
high;
c) storage time should not exceed three years.
3. Open-box inspection
a) packing must not be opened with a heavy hammer, be careful not
to damage the instrument
b) carefully check the contents according to the packing list.
