HollySys AF-EMF8D Electromagnetic Flowmeter for Low Conductivity uses ultra-low conductivity medium measurement technology to break through the conventional measurement barriers of EMF. It can effectively and stably measure media with conductivity as low as 1μs/cm, providing customers with more reliable measurement solutions.
Product Features
· Measurable medium conductivity as low as 1μS/cm
· Strong anti-interference ability
· High measurement accuracy
· Direct installation without verification
Application Scenarios
Pure water, soft water, desalted water, distilled water, deionized water, 98% alcohol, etc.
Technical Parameters
Converter
| Accuracy |
0.5% |
| Power supply |
220 V AC/24 V DC |
| Output signal |
4 to 20 mA/passive pulse |
| Communication |
MODBUS/HART |
| Protection Class |
IP65/IP67 |
Sensor
| Diameter |
DN10 to DN2000 |
| Protection class |
IP65/IP67/IP68 |
| Flange pressure |
PN6 to PN40 |
| Medium temperature |
-40 to 180ºC |
| Electrode material |
316L/Hc |
| Lining material |
FEP/PU |
| Connection |
Flange/wafer/threaded/clamp |
| Structure |
Integrated type/split type |
| Material (flange) |
Carbon Steel (304/316/316L is optional) |
| Material (enclosure) |
Carbon Steel (304/316/316L is optional) |
| Grounding element |
Grounding electrode, grounding ring |
Working Principle
When the conductive liquid is cutting the magnetic lines in the magnetic field, the ends of conductor will induce electromotive force(E), which is vertical to direction of movement and magnetic field. The electromotive force and the velocity of conductive liquid(V) are in a direct ratio, that is E=BLV (B: magnetic induction strength of the magnetic field; L: conductor length; V: velocity of cutting the magnetic lines).
After the converter has the power, the excitation current drive coils to form the magnetic field in the measuring tube, and when the media flows along the measuring tube and cut the magnetic lines, the induced electromotive force is transmitted to the converter through the two electrodes on the pipe wall. After signal is processed and computed by the converter, and the measured flow
value is converted.
The display shows the measured flow data, and output the data by the way of 4 to 20mA, pulse or RS485.
Company Profile
Audited Supplier 
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