Description low cost 4-20mA electromagnetic liquid diesel oil flow meter
Smart electromagnetic flowmeter LD series is oriented for conductive liquid with conductance higher than 5us/cm, it can be used to measure the volume flow of conductive fluid in a closed pipeline.lt is composed of sensor and converter and two versions are available : Compact version and separate version. It is widely applied in the flow measurement and control in the fields of chemical and petroleum industry, metallurgy industry, water and waste water, agriculture and irrigation, paper making, food and beverage industry and pharmaceutical industry.
Measuring Principles
Measuring range of the LD smart electromagnetic flowmeter determined on the basis of Faraday Low of Electromagnetic Induction: If lines of magnetic induction are cut through in magnetic field by conductive liquid. Based on the law, we install a pair of elctrodes on both sides inside a pipe that runs perpendicularly to both the measuring tube axes and magnetic line of force, electromotive E will be generated between the electrodes. When flux needs measuring, conductive liquid is let go on velocity V through a magnetic field that is perpendicular to the flow direction.With the conductive liquid running through, a voltage that is proportional to average flowing velocity is to be induced.The voltage signal induced can be detected by two or more electrodes that contacts the liquid and then transmitted to converter for intellectual processing before being shown in LCD display outputing standend signals of 4~20mA or 0-1 kHz.
Detailed Images low cost 4-20mA electromagnetic liquid diesel oil flow meter
Specification low cost 4-20mA electromagnetic liquid diesel oil flow meter
| Conductivity Range | The measured fluid condutivity≥5μs/cm |
| Load Resistance | 0 ~ 10mA 0 ~ 1.5KΩ |
| Current Output | 4 ~ 20mA 0 ~ 750KΩ |
| Digital Frequency Output | Transistor output frequency limit can be set with optical isolation within 1~5000Hz bidirectional open-collector output. External power supply is turned ≤35V maximum collector current of 250mA |
| Power Supply | AC 220V Or DC 24V |
| Length Of Straight Pipe Requirements | Up Stream≥5DN, Down Stream≥2DN |
| Connection | are used between the meter and piping flange connection, flange dimensions shall comply with the provisions of GB11988 |
| Explosion Levels | Exd II BT4 |
| Protection Class | IP65, Special Order up to IP68 |
| Ambient Temperature | -25℃ ~ +60℃ |
| Relative Humidity | 5% ~ 95% |
| Total Power Consumption | Less Than 20W |
Dimension of low cost 4-20mA electromagnetic liquid diesel oil flow meter
Feature of low cost 4-20mA electromagnetic liquid diesel oil flow meter
1. The sensor adopts overall welding structure, good sealing
2. Record the measurement from the measured media pressure, temperature, density, viscosity and other physical parameters
3. With functions of conductivity measurement, can distinguish whether the sensor controller
4. Using 16-bit embedded microcontroller processor, a fast calculation speed, high precision
5. With two-way flow measurement function, can show positive and reverse flow, percentage, velocity of flow
6. With two-way flow measurement function, can show positive and reverse flow, percentage, velocity of flow
7. Digital content processing, strong anti-interference ability, reliable measurement, high precision
8. Low EMI switch power supply for power supply voltage change fan at large, the EMC performance is good
9. Since the diagnosis information and troubleshooting
10. Can provide explosion-proof type
Selection Guide low cost 4-20mA electromagnetic liquid diesel oil flow meter
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Electromagnetic Liquid Diesel Oil Flow Meter 20mA Images
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