HREF7100 Intelligent Electromagnetic Flowmeter is designed and manufactured with the most advanced domestic and abroad technology, featuring high accuracy, reliability, good stability and long service life.
We pay our attention to every detail in the process of the product structure design, material selection, manufacturing, assembly and factory testing etc. With a water tower up to 35m as pressure stabilizer for actual flow calibration, we have a professional production line for electromagnetic flowmeter, also we design and develop a series of software and hardware for electromagnetic flowmeter for mass production to ensure high quality in long term use. The product has backlight and wide temperature-ranged Chinese/English LCD display. With fully practical function, visual display, easy operation, it saves troubles for on-site installation operation and maintenance. It can be widely used in industrial fields such as petroleum, chemical, metallurgy, water supply and drainage, steel, coal, paper, food, textile, environmental protection and other municipal administration, water conservancy construction field etc.
High measurement accuracy
Low installation requirements
Corrosion and wear resistance
Low power loss and excellent low flow rate
Measure instantaneous pulsating flow with good linearity
Significant energy saving, reliable performance, high precision, low power consumption
Diameter | DN 10 ～ DN500 |
Excitation method 方式Excitation mode | Square wave constant current excitation |
Installation method | Integrated flange, separated flange |
Lining materiel | Neoprene, urethane rubber, PTFE, F46 |
Electrode material | 316L, Hc, Hb, titanium, tantalum, platinum rhodium, tungsten carbide |
Ground | Built-in grounding electrode (DN25 and above) |
Medium | Conductive liquid |
level of accuracy | 0.5，1.0 |
Dielectric conductivity | ＞ 5 μS/cm |
Flow rate | ≤ 10 m/s |
Pipe connection flange | GB 81～59 |
Pipe connection | Flange connection |
Medium temperature | Neoprene：-10℃～60℃；PTFE：-10℃～120℃ Polyurethane rubber：-10℃～80℃；F46：-10℃～150℃ |
Rated pressure | 4.0 MPa；1.6 MPa；1.0 MPa |
Protection level | IP65 ；IP68 |
output signal | 4mA ~ 20mA DC current; pulse / frequency; upper and lower limit alarm |
Cable interface | M20×1.5 female |
Communication | RS 485 communication protocol (modbus protocol) RS 232 communication protocol (optional) |
Display | Instantaneous flow, alarm display, percentage, flow rate, positive and negative cumulative flow, and total cumulative. |
Power supply | 220V AC, 24V DC/12V DC, 3.6 V battery powered |
Type of use | Normal type, waterproof type |
High pressure | custom made |
Electrical connections
1. In order to ensure the insulation inside the sensor junction box, prevent the insulation caused by moisture, and do not connect the cable outdoors in rainy days.
2. Connect the power cable and signal cable to have round lugs at both ends.
3. It is recommended to use conduits, which can be thick and sturdy steel pipes or flexible metal pipes.
4. All power cables and non-four-core 24V DC signal cables must be equipped with metal cable protection tubes.
5. When waterproof and sealed cable joints are provided, the waterproof and sealed cable joints should be tightened to ensure that there is no water in the box.
6. To protect the operator and maintenance personnel from electric shock and to prevent external noise, connect the ground to the mark (≤10Ω).
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