Product Description:

The AF400 digital target flowmeter is a new type of force induction target flowmeter developed based on the measurement principle of traditional target flowmeters, fully utilizing their best characteristics, and combining new sensor technology and modern digital technology. It not only has the characteristics of traditional target flowmeters, orifice plates, vortex street flowmeters, etc. without movable parts, but also has measurement accuracy comparable to volumetric flowmeters. In addition, its unique anti-interference, anti impurity, lightweight and reliable features are widely used in various fields such as petroleum, chemical, energy, food, environmental protection, and water conservancy. From its effectiveness after use, the AF400 dynamic differential intelligent flowmeter has extremely broad applicability.
characteristic:
Can accurately measure liquids, gases, and vapors under various normal temperature, high temperature, and low temperature conditions,
Flow rate of viscous media and various fluid media
Extremely high sensitivity, capable of measuring extremely small flow rates, capable of measuring low flow rates of 0.08M/s
No movable parts, safe and reliable to use, capable of measuring bidirectional flow
Accurate measurement, high precision, total measurement can reach 0.2%
Wide measurement range, with a maximum measurement range of 1:30
Good repeatability, generally 0.1-0.08%, fast measurement
The pressure loss is small, only about 1/2 △ P of the standard orifice plate
Dry calibration method can be used, namely the method of hanging weight with the legal code
The measuring flow range can be changed by replacing the force receiving element according to actual needs
Can read readings directly online and also transmit messages remotely
Easy to install and maintain
working principle:
The working principle of AF400 dynamic differential intelligent flowmeter is to place the measuring force element coaxially at the center of the measuring tube (instrument housing). When the measured medium flows at a certain speed (m/s), its corresponding kinetic energy directly acts on the force element, and the force formed by the pressure difference generated by the separation of the force element and the flow velocity reflects the size of the liquid flow rate. Due to the rigid connection between the load-bearing element and the sensor, the sensor is directly subjected to the force F generated by fluid kinetic energy and differential pressure, which is related to the flow velocity V, medium density ρ, and the load-bearing area A of the load-bearing element

Technical parameters:

The tested medium liquid; Gas; steam
Nominal diameter pipeline type 6-300mm clamp type 15-600mm insert type 100-4000mm
Nominal pressure 0.6-70MPa 0.6-70MPa 0.6-70MPa 0.6-70MPa
Medium temperature -20 ℃~70 ℃ (normal temperature type)+70 ℃~+200 ℃ (high temperature type) -196 ℃~+600 ℃ (low temperature type)
Accuracy ± 0.2% ± 0.5% ± 1.0% ± 1.5% ± 2.5%
Range ratio of 1:3; 1：5; 1: 20 (liquid); 1: 20 (gas); 1: 20 (Steam)
Compensation form: temperature compensation; Pressure Compensation
Repeatability 0.1% to 0.08%
The power supply mode is equipped with a built-in 3.6V lithium battery; External power supply 24VDC; 220VAC (only for split digital display)
Output method: on-site display of read values; 4-20mA (two-wire system);
Pulse; 0～10V； RS232/RS485 (optional); hart protocol
Measuring tube material carbon steel; 304； 316L； Hastelloy alloy; It can also be provided according to user requirements
Explosion proof mark: intrinsic safety type (ExiallCT4), explosion-proof type (ExdllCT4)
Protection level IP65; IP67； IP68
Model Selection Table

Application scope:

Application scope: petroleum, chemical, textile, metallurgy, mining, light industry, medicine, electricity, environmental protection, municipal, food and scientific research fields, etc