DN200 Electromagnetic Flowmeter
DN200 Electromagnetic Flowmeter is mainly composed of magnetic circuit system, measuring conduit, electrode, shell, lining and converter. Magnetic circuit system: Its function is to generate uniform DC or AC magnetic field. The DC magnetic circuit is realized by magnets.
Specification
| Product | Electromagnetic flow meter |
| Model | SUP-LDG |
| Diameter nominal | DN15~DN1200 |
| Nominal pressure | DN15 - DN250, PN ≤1.6MPa |
| DN300 - DN1000, PN ≤1.0MPa | |
| DN1200, PN ≤0.6 MPa | |
| Higher pressure can be customized | |
| Accuracy | ±0.5% F.S. (Flow speed > 1m/s); ±0.5% F.S.±2mm/s (Flow speed <1m/s) |
| Repetitiveness | 0.16% |
| Liner material | Neoprene (CR), Polyurethane (PU), PTFE (F4), PFEP (F46), PFA |
| Electrode material | 316L Stainless Steel, Hastelloy C, Hastelloy B, Ti, Ta, Pt |
| Medium temperature | Neoprene: -10…+60℃ Polyurethane: -10…+60℃ PTFE/FEP: -10…+120℃ PFA: -10…+120℃ |
| Power supply | 85-245VAC，50/60Hz, 22VDC-26VDC |
| Structure type | Compact type, Remote type |
| Ingress protection | IP65, IP68(remote type only) |
| Product standard | JB/T 9248-2015 |
Description
DN200 Electromagnetic Flowmeter is mainly composed of magnetic circuit system, measuring conduit, electrode, shell, lining and converter. Magnetic circuit system: Its function is to generate uniform DC or AC magnetic field. The DC magnetic circuit is realized by magnets. Its advantage is that the structure is relatively simple and less disturbed by the AC magnetic field. However, it is easy to polarize the electrolyte liquid passing through the measuring conduit, so that the positive electrode is surrounded by negative ions and the negative electrode is surrounded by positive ions, that is, the polarization phenomenon of the electrode, and the internal resistance between the two electrodes increases, which seriously affects the normal operation of the instrument. When the diameter of the pipeline is large, the magnet is also large, bulky and uneconomical, so the electromagnetic flowmeter generally uses an alternating magnetic field, and is excited by a 50HZ power frequency power supply.
DN200 Electromagnetic Flowmeter performance features:
1. The instrument has a simple and reliable structure, no moving parts, and a long service life.
2. There are no intercepting and obstructing parts, and there is no pressure loss and fluid blockage.
3. There is no mechanical inertia, fast response, good stability, and can be used in automatic detection, adjustment and program control systems.
4. The measurement accuracy is not affected by the type of the measured medium and its physical parameters such as temperature, viscosity, density, pressure, etc.
5. The use of polytetrafluoroethylene or rubber lining and different combinations of electrode materials such as Hc, Hb, 316L, Ti, etc. can meet the needs of different media.
6. There are various flow meter models such as pipeline type and insertion type.
7. Using EEPROM memory, the storage and protection of measurement and calculation data are safe and reliable.
8. It has two types: integrated and separated.
9. High-definition LCD backlight display.
Technical parameters:
1. Instrument accuracy: pipeline type 0.5 level, 1.0 level; insertion type 2.5 level
2. Measuring medium: various liquids and liquid-solid two-phase fluids with conductivity greater than 5μS/cm.
3. Flow rate range: 0.2～8m/s
4. Working pressure: 1.6MPa
5. Ambient temperature: -40℃～+50℃
6. Medium temperature: PTFE lining ≤180℃; Rubber lining ≤65℃
7. Explosion-proof mark: ExmibdⅡBT4
8. Explosion-proof certificate number: GYB01349
9. External magnetic interference: ≤400A/m
10. Housing protection: Integrated type: IP65;
Separate type: Sensor IP68 (5 meters underwater, * for rubber lining); Converter IP65
11. Output signal: 4～20mA.DC, load resistance 0～750Ω
12. Communication output: RS485 or CAN bus
13. Electrical connection: M20×1.5 internal thread, φ10 cable hole
14. Power supply voltage: 90～220V.AC, 24±10%V.DC
15. Power consumption: ≤10VA
Technical data of the whole machine and sensor:
|
Flow meter implementation standard |
JB／T 9248—1999 |
||||
|
Flow meter nominal diameter |
15、20、25、32、40、50、65、80、100、125、150、200、250、300、350、400、450、500、600、700、800、900、1000、1200、1400、1600、1800、2000、2200、2400、2600、2800、3000 |
||||
|
Flow meter flow rate |
15m／s |
||||
|
Accuracy |
DNl5～DN600 |
Indication: ±0.3% (flow velocity ≥ 1m/s); ±3mm/s (flow velocity < 1m/s) |
|||
|
DN700—DN3000 |
±0.5% of indicated value (flow velocity ≥ 0.8m/S); ±4mm/s (flow velocity < 0.8m/S) |
||||
|
Fluid conductivity |
≥5uS／cm |
||||
|
Nominal pressure |
4.0MPa |
1.6 MPa |
1.0MPa |
0.6 MPa |
6.3、10MPa |
|
DNl5～DN150 |
DNl5～DN600 |
DN200～DN1000 |
DN700～DN3000 |
Special Order |
|
|
Ambient temperature |
sensor |
-25℃ - +60℃ |
|||
|
Converter and integrated type |
-10℃ - +60℃ |
||||
|
Lining material |
Polytetrafluoroethylene, polychloroprene rubber, polyurethane, polytetrafluoroethylene propylene (F46) |
||||
|
Fluid temperature |
—Body type |
70℃ |
|||
|
Separate type |
Neoprene lining |
80℃; 120℃ (please specify when ordering) |
|||
|
Polyurethane lining |
80℃ |
||||
|
PTFE lining |
100℃; 150℃ (please specify when ordering) |
||||
|
Fluorinated ethylene propylene (F46) |
|||||
|
Screening PFA |
|||||
|
Signal electrode and ground electrode materials |
Stainless steel 0Crl8Nil2M02Ti, Hastelloy C, Hastelloy B, titanium, tantalum, platinum/iridium alloy, stainless steel coated with tungsten carbide |
||||
|
Electrode scraper mechanism |
DN300—DN3000 |
||||
|
Connection flange material |
Carbon Steel |
||||
|
Grounding flange material |
Stainless steel 1Crl8Ni9Ti |
||||
|
Imported protective flange material |
DN65—DNl50 |
Stainless steel 1Crl8Ni9Ti |
|||
|
DN200～DNl600 |
Carbon steel + stainless steel 1Crl8Ni9Ti |
||||
|
Sewage flow meter housing protection |
DNl5～DN3000 Separate rubber or polyurethane lined sensor |
IP65 or IP68 |
|||
|
Other sensors, - body flow meters and separate converters |
IP65 |
||||
|
Spacing (separated type) |
The distance between the converter and the sensor is usually no more than 100m |
||||
Lining options:
|
Sewage flow meter lining material |
Main performance |
Medium temperature |
Scope of application |
|
|
—Body type |
Separate type |
|
||
|
Polytetrafluoroethylene (F4) |
It is a plastic with stable chemical properties. It can withstand boiling hydrochloric acid, sulfuric acid, concentrated alkali and various organic solvents. |
70℃ |
100℃ 150℃ (special order required) |
1. Strongly corrosive media such as concentrated acid and alkali. 2. Sanitary media. |
|
Fluorinated ethylene propylene (F46) |
Same as F4, but with higher wear resistance and negative pressure resistance than F4. |
Same as above |
|
|
|
Polyvinyl fluoride (Fs) |
The upper limit of applicable temperature is lower than that of polytetrafluoroethylene, but the cost is also lower. |
80℃ |
|
|
|
Neoprene |
1. Excellent elasticity, high tearing force, good wear resistance. 2. Resistant to corrosion by general low-concentration acid, alkali, and salt media, but not resistant to corrosion by oxidizing media. |
80℃ 120℃ (special order required) |
Water, sewage, slightly abrasive mud and slurry. |
|
|
Polyurethane rubber |
1. Excellent wear resistance. 2. Poor corrosion resistance. |
80℃ |
Neutral and highly abrasive ore slurry, coal slurry, mud |
|
Selection of inlet protection flange and grounding flange (or grounding ring):
|
Orchid species |
Scope of application |
|
Grounding flange (or grounding ring) |
Suitable for non-conductive pipes such as plastic pipes, but not required for sensors with ground electrodes. |
|
Imported protective flange |
It is used when the medium is highly abrasive. |
Electrode selection
|
Electrode Materials |
Corrosion and wear resistance |
|
Stainless steel 0Crl8Nil2M02Ti |
Used for weakly corrosive media such as industrial water, domestic water, sewage, etc., suitable for industrial sectors such as petroleum, chemical industry, steel, as well as municipal administration, environmental protection and other fields. |
|
Hastelloy B |
It has good corrosion resistance to hydrochloric acid of all concentrations below the boiling point, and is also resistant to corrosion by non-chlorinated acids, alkalis, and non-oxidizing salt solutions such as sulfuric acid, phosphoric acid, and organic acids. |
|
Hastelloy C |
It can resist corrosion from non-oxidizing acids such as nitric acid, mixed acid, or mixed medium of chromic acid and sulfuric acid, as well as corrosion from oxidizing salts such as Fe, Zn, Cu, or other oxidants such as hypochlorite solution above room temperature and seawater. |
|
titanium |
It is resistant to corrosion from seawater, various chlorides and hypochlorites, oxidizing acids (including fuming sulfuric acid), organic acids, and alkalis. It is not resistant to corrosion from purer reducing acids (such as sulfuric acid and hydrochloric acid), but if the acid contains oxidants (such as nitric acid, Fc++, Cu++), the corrosion is greatly reduced. |
|
Tantalum |
It has excellent corrosion resistance and is very similar to glass. It can resist corrosion from almost all chemical media (including boiling hydrochloric acid, nitric acid and sulfuric acid below 150°C) except fuming sulfuric acid and alkali. It is corrosion-resistant in alkali. |
|
Platinum/Titanium Alloy |
It is resistant to almost all chemical media, but is not suitable for aqua regia and ammonium salts. |
|
Stainless steel coated with tungsten carbide |
Used for non-corrosive and highly abrasive media. |
|
Note: Due to the wide variety of media, their corrosiveness is affected by complex factors such as temperature, concentration, flow rate, etc., so this table is for reference only. Users should make their own choices based on actual conditions, and if necessary, corrosion resistance tests should be conducted on the selected materials, such as hanging plate tests. |
|
Inquiry
Please leave us your requirements, we will contact you soon.
