AMF series electromagnetic flowmeterDetailed product description：

The AMF series electromagnetic flowmeter can be widely used in various fields such as chemical, steel, coal, mining and metallurgy, petroleum extraction, petrochemicals, papermaking, environmental protection, sugar production, pharmaceuticals, food, water conservancy irrigation, water supply and drainage, and port dredging. It can accurately measure the volume flow rate of conductive fluids and solid-liquid two-phase bodies such as acids, alkalis, salt solutions, raw water, cooling water, sewage, coal slurry, slurry, cement slurry, pulp, syrup, medicinal liquids, and various beverages
The AMF series electromagnetic flowmeter has two combination forms: integrated and split. The output stage adopts electrical isolation, which can be easily matched with the rear instrument to achieve functions such as recording, controlling, and regulating flow. At the same time, the flowmeter is equipped with an RS485 communication interface, which can be interconnected with a computer.
Each set of products is calibrated with water according to the flow rate required by the order, and usually can be put into use without any adjustments.
working principle
The AMF series electromagnetic flowmeter is suitable for measuring the volumetric flow rate of conductive liquids and slurries in closed pipelines, clean water, sewage, various acid-base salt solutions, mud, slurry, pulp, and food related liquids.
The measurement principle of the AMF series electromagnetic flowmeter is based on Faraday's law of electromagnetic induction; When a conductive liquid cuts magnetic field lines in a magnetic field, the induced potential E generated in the conductor is:
E=KBVD
Where:
K - Instrument constant
B -- Magnetic induction intensity
V ------------ Measure the average flow velocity within the cross-section of the pipeline
D - Measure the inner diameter of the pipeline cross-section

Main technical performance of AMF series electromagnetic flowmeter

Tested fluid conductivity: ≥ 5 us/cm
Full scale flow rate: 0.3m/s to 12m/s
Measurement error: ± 0.5% of the indicated value
Environmental temperature: -25 ℃ -+180 ℃
Rated working pressure (MPa): 4.0, 1.6, 1.0, 0.6 (customized for pressures greater than 4.0)
Installation and connection: According to flange standards such as GB9115-88, GB9116-88, GB9119-88, JB/T81-94 DIN, ANSI, etc., or as required by the user (any connection shall comply with relevant standards in the petroleum industry)
Protection level: Standard type: IP65 (anti spray type); IP68 (submersible type)
Output signal: 4-20mAd.c., 0~1KHz
Flow display function: 1. Free switching between Chinese and English menus, with wide and high-definition LCD backlight display. Display cumulative flow rate, instantaneous flow rate, flow velocity, flow percentage, etc. in both forward and reverse directions.
Communication function: RS485 communication interface
Alarm: Air traffic control, excitation, upper and lower limits of flow
Short term data protection time: not less than 10 years (without any auxiliary power supply)
Power supply: Standard type: 220Va.c.50Hz; Special type 24V. c
Power consumption: 20VA

Features
1. Free switching between Chinese and English menus, wide and high-definition LCD backlit display
2. The latest and most advanced international chip machines (MCU) and surface mount technology (SMT)
3. Reliable performance, high accuracy, low power consumption, stable zero point, and convenient parameter setting
4. Display cumulative flow rate in both directions, instantaneous flow rate, flow velocity, flow percentage, etc
5 bidirectional measurement system, capable of measuring forward flow and reverse flow
6 alarm functions: air traffic control, excitation, upper and lower limits of flow
7-frequency output 4-20mA signal, flow output, cumulative pulse output, RS485 output
8 adopts the most advanced international manufacturing technology, with stable and excellent performance
9 output ports, all input ports are equipped with safety lightning protection
10 self adjustable, flow upper and lower limits can be set by oneself
11 small signal removal
12 adopts efficient and high stability PWM wave excitation constant current source
13 damping coefficient optional
Long term data storage after 14 power outages
15 professional designs 4-6 multi electrode structures, further ensuring measurement accuracy and eliminating the need for grounding rings at all times, reducing instrument volume and installation and maintenance troubles.
The measurement of flow rate with a 16 meter coefficient is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. The sensor induced voltage signal is linearly related to the average flow rate, resulting in high measurement accuracy (0.3-0.5%) and a wide range ratio (1:1500).
There is no obstruction in the measuring pipeline, so there is no additional pressure loss, which has significant energy-saving significance.