Flow
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Coriolis Mass Flow Meter
Description
MCMF100 Series Coriolis Mass Flow Meter is designed according to the Coriolis principle.
It can be widely used for the process detecting and custody transfer / fiscal unit in many industries such as petroleum, petrochemical industry, pharmacy, paper making, food and energy etc.
As a fairly advanced kind of flow measuring instrument, it has been paid attention by the circle of measurement and accepted by many customers home and abroad.
Principle
MCMF100 Series is designed according to the principle of Coriolis force.
Under the alternating current effect, the magnet and coil installed on the measuring tube will make two parallel measuring tubes vibrate according to some fixed frequency.
Once there is a flow passing through the pipes, Coriolis force will give rise to deflection ( phase shift) on the vibration of two pipes and the deflection of vibration is directly proportional to the mass flow of fluid. Pick up them and the mass flow rate could be calculated.
The vibration frequency of measuring tube is determined by the total mass of measuring tube and inner fluid.
When the fluid density changes, the vibration frequency of measuring tube will be also changed, as a result , the fluid density can be calculated.
The temperature transducer installed inside in the pipeline can pick up the fluid temperature on time under the coordination of measuring circuit.
Feature
3-1. Digital Transmitter Feature
Comparing with traditional analog circuit and analog transmitter, digital circuit and digital transmitter has the following obvious merits
- The DSP chip is the core of digital transmitter for MCMF100. As we know , the technique of Digital Signal Processing can greatly increase the accuracy of flow meter and broaden turn-down ratio.
- The sampling rate of digital transmitter is much higher than traditional products, so it provides shorter response time for the flow, quicker reaction to the flow change, higher efficiency and better accuracy for small amount tank loading / unloading system.
- Digital Signal Processing techniques can filter and shape the flow signal better. Well designed digital filter can remove industrial frequency electromagnetic fields, spatial electromagnetic fields and noise effect on mass flow meter, markedly enhanced stability and reliability of mass flow meter.
3-2 Mass Flowmeter Feature
Comparing with the traditional flow measurement method MCMF100 has following obvious merits.
- Enable to directly measures mass flow rate of fluid in the pipeline without chaging any parameters , which avoid some measurement error of intermediate links. Its mass flow arte can be high accuracy and good repeatability within bigger range of turn-down ratio.
- Fluid measured can be more extensive, such as the steady uniform flow of common viscosity fluid, the high viscosity fluid, non-Newtonian fluid, slurry containing some solid components and the liquid containing some trace of gas.
- Besides mass flow measurement , the density and temperature and temperature and water cut (ratio) can also be picked up and output by RS485-Modbus/HART.
Feature and Application
- High Accuracy : ± 0.1%, Repeatability : ± 0.05%
- Sensor Type : U Tube, Micro-Bend Tube , Triangle Tube
- Wetted Parts Material : 316SST, Hastelloy-C, Tantalum
- Fluid Density Measuring Range : 0.2~3.0 g/Cm²
- High Operating Temperature : 300 °C , Operating Pressure : Max 6.4 MPa
- Measurement : Mass Flow, Volumetric Flow, Density , Temperature
- High Stablity of Flow Measurement by Anti-vibration Design
- Wide Turn-down Ratio : 100 to 1
- Measuring for Various Liquid, Slurry, Mixture Liquid, Gas
- Output : 4~20 mA, 10 KHz, RS485, Modbus RTU
- Smart Type for Field Programming and Parameters Setting
- Various Process Connection : DN15 ~ DN300 , Flange DIN, ANSI, JIS, BSP
- No Requirement for Up & Down Straight Pipe-Run
- Easy for Sensor Cleaning and Maintenance by Simple sensor Tube Design
- Power Supply : 24 VDC, 220 VAC
1-1 Specification of Sensor and Flow Range for Liquid
| Size DN ( mm ) | 8 ~ 300 | |
|---|---|---|
| Structurer | Integral Type ( -50 ~ + 125 °C ) | |
| Separate Type Standard Temperature ( -50 ~ + 200 °C ) | ||
| Separate Type High Temperature ( -50 ~ + 300 °C ) | ||
| Separate Type Low Temperature ( -150 ~ + 125 °C ) | ||
| Sensor Type | U-Series , Micro-Bend Series | |
| Transmitter | Digital Type | Analog Type |
| Explosion-Proof | General Type | Explosion-Proof Type |
| Power Supply | 24 VDC | 220 VAC |
| Output Interface | RS485 HART | |
| Nominal Pressure ( MPa ) | 1.6 2.5 4.0 6.3 ( 25 MPa is available for some sizes ) | |
| Output Signal | Pules Output, 4-20 mA | |
| Accuracy | ±0.1% ±0.2% ±0.5% | |
| Hygeian Type | Customize as customers' needs | |
| Process Connection | GB/T 9115-2010 ( Customize as customers' needs ) | |
1-2 Nominal Flow Range for liquid
| U-Series Sensor with Digital Transmitter | |||||
|---|---|---|---|---|---|
| DN (mm) |
Max Flow Range (Kg/h) |
Nominal Flow Range (Kg/h) for 0.1% Accuracy |
Nominal Flow Range (Kg/h) for 0.2% Accuracy |
Nominal Flow Range (Kg/h) for 0.5% Accuracy |
Stability of Zero (kg/h) |
| 15 | 30~3000 | 150~3000 | 100~3000 | 80~3000 | 0.12 |
| 25 | 80~8000 | 400~8000 | 300~8000 | 280~8000 | 0.32 |
| 40 | 320~32000 | 2000~32000 | 1500~32000 | 1300~32000 | 1.2 |
| 50 | 500~50000 | 3500~50000 | 2500~50000 | 2000~50000 | 2 |
| 80 | 1400~140000 | 6000~140000 | 5500~140000 | 5000~140000 | 6 |
| 100A | 2000~200000 | 15000~200000 | 12000~200000 | 10000~200000 | 8 |
| 100B | 2000~180000 | 18000~180000 | 14000~180000 | 12000~180000 | 10 |
| 150A | 5000~500000 | 35000~500000 | 30000~500000 | 25000~500000 | 20 |
| 150B | 5000~480000 | 42000~480000 | 32000~480000 | 28000~480000 | 24 |
| 200 | 10000~1000000 | 100000~1000000 | 70000~1000000 | 50000~1000000 | 40 |
| 250 | 15000~1500000 | 100000~1500000 | 75000~1500000 | 70000~1500000 | 60 |
| 300 | 25000~2500000 | 170000~2500000 | 125000~2500000 | 120000~2500000 | 100 |
첨부파일
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