Simple Electromagnetic Flow Meter Dn150 Dn400 For Liquid Flow Control
HKLD type intelligent electromagnetic flowmeter is a fully intelligent electromagnetic flowmeter developed by our company using the most advanced technology at home and abroad. Its electromagnetic converter core adopts high-speed central processing unit. The calculation speed is very fast, the precision is high, and the measurement performance is reliable. The sensor adopts non-uniform magnetic field technology and special magnetic circuit structure, the magnetic field is stable and reliable, and the volume is greatly reduced, the weight is reduced, and the flowmeter is characterized by small flow.
Application
Due to its unique advantages, it is widely used in the fields of petroleum, chemical industry, steel, light industry, sewage processing, environmental protection, water conservancy project and pharmacy to measure the volume flow of the conducted liquid mediums, such as acid, alkali, salt solution and so on.
Features
1. No moving and blocked flow parts in the pipeline, almost no additional pressure loss in the measurement.
2. Measurements results are independent of physical parameters, such as flow distribution, fluid pressure, temperature, density and viscosity.
3. On-site modification of the measuring range available.
4. LCD display, easy to use and simple to operate.
5. Using SMD devices and SMT technology.
6. Using 16-bit embedded processors with fast speed and high accuracy, enhancing the stability of measurement.
7. Anti-interference, reliability, measurement range up to 150:1.
8. Ultra low EMI switch, wide range of power supply voltage.
9. RS485, RS232, Hart and Modbus digital communication signal output.
10. Self-checking function.
Product Parameters
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Product Name |
Electromagnetic Flowmeter |
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Repeatability error |
+/-0.1% |
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Accuracy class |
0.5 class, 1.0 class |
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Measured medium temperature |
Common rubber lining: -20~+60 ° c |
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High temperature rubber lining: -20~+90 ° c |
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PTFE lining: -30~+100 ° c |
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High temperature vinyl lining: -30~+180 ° c |
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Rated working pressure |
pipeline: DN10~DN65: ≤ 2.5MPa;DN80~DN150: ≤ 1.6MPa; DN200~DN1200: ≤ 1.0MPa |
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Flow rate range |
0.3~15m/s |
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Measured fluid conductivity |
≥5μs/cm liquid |
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Output |
4~20mA / 4~20mA + Hart |
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Electrode material |
316L, titanium (Ti), tantalum (Ta), Hastelloy (H), Platinum (Pt) or other special electrode materials |
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Working power supply |
85~265VAC / 24VDC / Battery |
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Straight pipe length |
pipe: ≥ 5DN in the upper reaches, downstream of greater than or equal to 2DN |
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Connections |
Flange |
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Protection grade |
standard: IP65; IP68(optional) |
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Explosion-proof mark |
mdllBT4 |
Deatail Images
Precautions
1. Try to avoid ferromagnetic objects and equipment with strong electromagnetic fields, so as to avoid the magnetic field affecting the working magnetic field of the sensor and the flow signal.
2. should be installed in a dry and ventilated place, to avoid sun and rain, the ambient temperature should be -20 ~ +60 ° C, relative humidity is less than 85%.
3. There should be plenty of space around the flowmeter for easy installation and maintenance.
Installation requirements
The measurement principle of the electromagnetic flowmeter is that it does not depend on the flow characteristics. If there is a certain turbulence and vortex inside the pipeline, it will be generated in the non-measurement zone (such as elbow, tangential current limit or half-opening shut-off valve upstream). Measurement is irrelevant. If steady-state eddy currents in the measurement zone affect the stability of the measurement and the accuracy of the measurement, then some measures should be taken to stabilize the flow rate distribution:
A. Increase the length of the straight pipe before and after.
B. Using a flow stabilizer.
C. Reduce a section of the measuring point.
