| Customization: | Available |
|---|---|
| Accuracy: | ±0.2-0.5% |
| Main Application: | Water |
|
Still deciding? Get samples of $ !
Order Sample
|
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Electromagnetic flowmeter is composed of two parts: sensor and converter. It works based on Faraday's law of electromagnetic induction and is used to measure conductive liquids or two-phase media. Its conductivity is generally required to be greater than 5 μ S/cm (the original conductivity of tap water is about 100-500 μ S/cm). It can be used to measure various acid, alkali, salt solutions, pulp, slurry and other media, but the media cannot contain a lot of ferromagnetic substances and a large number of bubbles.
Electromagnetic flowmeter is a major flow meter widely used in industrial sectors such as petroleum, chemical, metallurgical, textile, papermaking, environmental protection, food, as well as municipal management and water conservancy construction for flow measurement.
The measurement system of the electromagnetic flowmeter sensor is based on Faraday's law of electromagnetic induction. A pair of detection electrodes are installed on the pipe wall perpendicular to the axis of the measuring tube and the magnetic field lines. When the conductive liquid moves along the axis of the measuring tube, it cuts the magnetic field lines and generates an induced potential. This induced potential is detected by two electrodes on the measuring tube, with a value of:
E=KBVD
Among them: E induced potential;
K instrument constant;
B magnetic induction intensity;
Measure the average flow velocity within the cross-section of the V measuring tube;
D Measure the inner diameter of the tube;
When measuring flow rate, the fluid flows through a magnetic field perpendicular to the flow direction, and the flow of conductive liquid induces an electric potential proportional to the average flow velocity. Therefore, it is required that the measured flowing liquid has a conductivity higher than the minimum limit. The induced voltage signal is detected through two electrodes. And it is transmitted to the converter through cables, and after signal processing and related operations, the accumulated flow rate and instantaneous flow rate are displayed on the converter's display screen.
Instrument features
1. There are no obstructions or moving parts inside the measuring tube, so it will not cause additional energy loss or blockage, resulting in significant energy-saving effects. It is particularly suitable for measuring liquid-solid two-phase flows such as sewage, mud, slurry, coal water slurry, pulp, etc.
2. Only the lining and electrode are in contact with the measured medium. As long as the lining and electrode materials are selected reasonably, good corrosion resistance and wear resistance can be achieved. Therefore, various chemical solutions such as strong acids and bases can be measured.
3. Low installation requirements. The front straight pipe section is only 5D, while the rear straight pipe section is 2D (D is the inner diameter of the selected instrument).
4. The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity, and can measure flow in both forward and reverse directions, which provides a good means for accurately measuring flow.
5. The power consumption of the instrument is low, less than 5VA.
6. The converter has good interchangeability and can achieve measurement accuracy without the need for re calibration of the real current. Due to its various advantages, electromagnetic flow meters are becoming increasingly widely used in various industries and have become the preferred instrument for liquid flow measurement.
Ordering Instructions
Please read this information carefully before placing an order to understand the model and coding regulations of this product, and determine the model specifications as needed.
If necessary, please fill out the electromagnetic flowmeter selection operating condition table.
Technical parameters of AO-ATF-A/B (integrated/split type) universal electromagnetic flowmeter
1. Caliber DN10~DN2000
2. Electrode material 316 Hb,Hc,Ti,Ta,Pt
3. Inner lining materials PTFE, PFA, F46, chloroprene rubber, polyurethane
4. Dielectric conductive liquid (including solid-liquid two-phase)
5. Measurement errors of ± 0.3%, ± 0.5%, ± 1.0% flow rate (by caliber)
6. Dielectric conductivity>5 μ S/cm (water>20 μ S/cm)
7. Flow velocity range of 0.5-10m/s (flow unit can be selected)
8. Connect the flange according to the national standard GB9115 or according to user requirements
9. Integrated medium temperature -10 ºC~+60 ºC, split type -10 ºC~+150 ºC
10. Rated pressure 0.6MPa~4.0MPa (by caliber)
11. Protection levels IP65, IP67, IP68 (split type)
12. Converter with integrated or split design
13. Output signal 4-20mA output, frequency/pulse output
14. Communication RS485, RS232
15. Application of acid, alkali, water supply and drainage, food, pulp, slurry, etc
16. Display flow rate, flow rate, percentage, cumulative flow rate, fault alarm, etc
17. Power supply 220VAC, 24VDC
18. Installation form: integrated or split type
Technical parameters of AO-ATF-C/D (integrated/split) clamping electromagnetic flowmeter
1. Caliber DN10~DN200
2. Electrode material 316 Hb,Hc,Ti,Ta,Pt
3. Lining material PFA, F46
4. Dielectric conductive liquid (including solid-liquid two-phase)
5. Measurement errors of ± 0.3%, ± 0.5%, ± 1.0%
6. Dielectric conductivity>5 μ S/cm (water>20 μ S/cm)
7. Flow range 0.5-10m/s
8. Integrated medium temperature -10 ºC~+60 ºC, split type -10 ºC~+150 ºC
9. Rated pressure 1.6MPa~4.0MPa (by caliber)
10. Protection levels IP65, IP67, IP68 (split)
11. Output signal 4-20mA output, frequency/pulse output
12. Communication RS485, RS232
13. Application of acid, alkali, water supply and drainage, food, pulp, etc
14. Display flow rate, flow rate, percentage, cumulative flow rate, fault alarm, etc
15. Power supply 220VAC, 24VDC
16. Installation form: integrated or split type
Technical parameters of intelligent converter
|
conductivity |
>5μS/cm |
|
flow rate range |
0.5~ 10m/s |
|
current output |
Bidirectional two-way, fully isolated, 0-10mA (load resistance 0-1.2K Ω),
4-20mA (load resistance 0-600 Ω)
|
|
Frequency output |
The upper limit is set within 0-3KHz. Open collector output of transistor with photoelectric isolation |
|
pulse output |
The upper limit can reach 5000cp/s, and the pulse equivalent is 0.0001-10m3/cp. The pulse width is between 10ms and 2.5s. Transistor collector open circuit alarm output with photoelectric isolation, collector open circuit alarm output with positive and negative flow state. The external power supply for the above three outputs is not greater than 35V. When conducting, the collector current is 250mA |
|
communication interface |
RS485,RS232 |
|
quarantine |
The insulation voltage between the analog output, pulse output, alarm output and the ground shall not be less than 500V |
|
power supply |
220VAC,24VDC |
|
power |
≤20W |
|
ambient temperature |
-10~+ 60ºC |
|
display |
High definition backlit LCD display, instantaneous, cumulative (forward cumulative, reverse cumulative, and differential cumulative) |
|
power-off protection |
Accumulated value data saved for more than 10 years |
|
Shell protection |
IP65,IP67,IP68(split type) |
Founded in 2007, Fujian Aotai Automation Equipment Co., Ltd. is located in the beautiful Fuzhou, Fujian. It is an enterprise dedicated to providing measurement and control instruments and equipment for "intelligent manufacturing", "smart water" and "smart city". The company's goal is to become an enterprise with advanced technology, professional service and strong competitiveness in the industry. Since its inception, it has been adhering to the concept of "creating a century-old store and establishing a national brand", focusing on the research and development, production, sales and service of instrumentation, and striving to create value for customers.
){kind=link}