6" Flanged Magnetic Flow Meter with Integrated Display, Pulse &
4-20mA Output, 9-36VDC Power
1. Quick Details
The MLF electromagnetic flow meter is for explosive proof design.
It has the function of low conductivity measurement.
It has 9 languages for option to satisfy different customers’ requirements.
It has the function of self-adjustment and self-checking.
A variety of outputs are optional:Hart, RS485, Profibus, 4-20mA,
Frequency, Pulse.
2. 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 |
3. Selection of Electrode Materials
| Electrode Material | Main Performance |
| 316L | Good nitric acid corrosion resistance, <5% sulfuric acid, acetic
acid, alkaline liquid, sulfite under certain pressure, sea water,
acetic acid, etc. corrosion at room temperature, can be widely used
in petrochemical urea, vinylon, etc. |
| Hb | Good resistance to all hydrochloric acid with a concentration lower
than the boiling point, and also resistant to corrosion by
non-oxidizing acids, alkalis, sulfuric acid, phosphoric acid,
hydrofluoric acid, and organic acids. |
| Hc | Corrosion of oxidizing acids, such as nitric acid, mixed acids. A
mixture of chromic acid and sulfuric acid, oxidized salts, such as
Fe3,Q3, and some other oxidants, such as a mixture of hypochlorite
solution and seawater above normal temperature. |
| Ti | It is resistant to corrosion by sea water, various chlorides,
hypochlorites, oxidizing acids (including fuming nitric acid),
organic acids or alkalis, but not resistant to corrosion by pure
reducing acids (such as sulfuric acid and hydrochloric acid).
However, if the acid contains oxidants (such as nitric acid, Fe3+,
Q3+), the corrosion resistance will be reduced. |
| 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. |
4. 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 |
5.Instrument testing and 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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