Coriolis AMF Series Mass Flowmeter
AMF series mass flowmeter of OKet adopts Coriolis force principle to design, develop and produce, mainly composed of two parts: sensor and transmitter. It is used to accurately measure the mass flow, density and temperature of fluids.


Product Introduction


AMF series mass flowmeter of OKet adopts Coriolis force principle to design, develop and produce, mainly composed of two parts: sensor and transmitter. It is used to accurately measure the mass flow, density and temperature of fluids.


The vibration frequency of the measurement tube is determined by the mass (m) of the tube and the fluid. When the fluid density changes, the vibration frequency of the tube also changes. Therefore, by using this principle, the density of the fluid can be determined.


A high-precision temperature sensor is installed on the measurement tube to obtain the fluid's temperature in real-time.


AMF质量流量计宣传册(英文版)20241209-01.jpg


Structure


AMF series mass flowmeter of OKet is mainly composed of two parts: sensor and transmitter.


AMF质量流量计宣传册(英文版)20241209-01.jpg


Transmitter composition

  • It is composed of circuit module, casing, outlet device and other parts.


Transmitter function

  • Provide an excitation signal for the sensor drive system to make the measuring tube vibrate.

  • Calculate mass flow, density, temperature and other parameters according to the sampling signal returned by the sensor sampling system.

  • Display the parameters through LCD screen in place in real time.

  • The data can be transmitted to the secondary instrument through 4-20mA, pulse, RS485 and other methods.


Sensor composition

  • It is composed of connecting flange, shunt, measuring tube, drive system, sampling system, platinum resistor, casing, outlet device and other parts.


Sensor function

  • Provide a rotating system environment for measuring Coriolis force (put the fluid in this environment).

  • Provide relevant physical quantities reflecting the magnitude of the Coriolis force.


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Features


Intuitive and direct display of mass flow, mass total, volume flow, volume total, density, temperature, who can directly replace volume flowmeter.


AMF质量流量计宣传册(英文版)20241209-01.jpg


Characteristics


High accuracy, suitable for trade transactions


1. High mass accuracy

  • Sensor mechanical structure, transmitter circuit and algorithm optimization.

  • Mass measurement error less than ±0.1%; the repeatability less than 0.05%.


2. High density accuracy

  • Real-time high-accuracy online measurement with error less than ±0.0005g/cm³.

  • No need to open tanks and take samples, safe, convenient, reliable, and environmentally friendly.

  • Eliminate manual measurement and improve work efficiency.


3. High temperature accuracy

  • High-accuracy platinum resistance temperature measurement, algorithm optimization, measurement error better than ±0.2°C.


4. Range ratio 20:1

  • Digital algorithm, high measurement accuracy at low flow rates.


Applicable to a variety of media and process conditions


1. Applicable to a variety of fluids and gases, only the installation method is different.

2. Applicable to a variety of flow ranges and process conditions.


Independent research & development, advanced functions


1. Intuitive and direct display of mass flow, mass total, volume flow, volume total, density, temperature, directly replace volume flowmeter.

2. Self-diagnosis function, which can quickly locate and deal with problems, ensures data reliability and prolong effective service time.

3. Flexible data upload forms, real-time remote transmission to the designated system.

4. Convenient data exchange with other equipment, and interconnection with interlocking devices such as batch controller and process controller.


Good stability and long lifespan


1. High sampling rate, short response time and good consistency.

2. Better structure, circuit and algorithm and zero point stability.

3. Strict quality control of raw materials and manufacturing links.

4. No obstructing parts and moving parts inside, no wear and tear, a long service life (12 years).


parameters


Operating voltageDC voltage input22~26VDC
AC voltage input110~265VAC
Overall power consumption≤10W
RS485 communicationStandard modbus RTU protocol
Baud rate:1200~38400Factory default: 9600
Parity check bit: none, odd, evenFactory default: none
Device address:1~255Factory default: 1
Pulse outputOutput range0~10KHz
Resolution0.1Hz
Basic error±1N
Temperature effect±0.001%F.S/℃
Standard load5kΩ
Frequency amplitude12V/24V (optional)
Current outputOutput range4~20mA
Resolution0.0002mA
Basic error0.1%F.S
Temperature effect±0.005%F.S/℃
Load resistance250~750Ω

Electrical interface specification

Explosion-proof cavity outlet portStandard configuration: M20*1.5 (inner wire)
Junction box outlet portStandard configuration: M20*1.5 (inner wire)
Explosion-proof markMass flowmeter (complete machine)Ex d ib II C T1~T6 Gb