蒸汽气体4-20mA涡街流量计

Steam gas 4-20mA vortex flowmeter Working Principle

Meacon steam gas 4-20mA vortex flowmeter determines the flow rate by measuring the frequency of vortices generated by the fluid inside the flow sensor. When the fluid flows through the flow sensor, regular vortices are generated alternately on both sides of the vortex generator, and the frequency of these vortices is proportional to the fluid flow rate, so that the flow rate can be calculated.

Specification

Product	Meacon steam gas 4-20mA Vortex flowmeter
Model	SUP-LUGB
Diameter nominal	DN15~DN300
Installation	Wafer connection: DN15-DN300(priority PN2.5MPa); Flange connection: DN15-DN50(priority PN2.5MPa);DN65-DN200(priority PN1.6MPa);DN250-DN300(priority PN1.0MPa）
Accuracy	Gas without compensation: DN15-DN25–1.5%, DN32-DN200–1.0%, DN250-DN300–1.5%
Range Ratio	Gas density:1.2kg/m3, Range ratio: 8:1
Medium Temperature	-20°C ~ +150°C、-20°C ~ +260°C、-20°C ~ +300°C
Output signal	4-20mA
Frequency	RS485 communication (Modbus RTU)
Power supply	24VDC±5% Li battery(3.6VDC)
Ingress protection	IP65
Body Materials	Stainless shell
Display	128*64 dot matrix LCD

Signal Type

4-20mA is a commonly used analog signal that indicates the size of the measured value by the magnitude of the current. In vortex flowmeter, 4mA indicates the minimum value and 20mA indicates the maximum value. This signal type has the advantages of long signal transmission distance and strong anti-interference ability, which is suitable for the scenario that requires long-distance signal transmission.

Steam gas 4-20mA vortex flowmeter Applications

• 1. Steam gas 4-20mA vortex flowmeter for energy industry: Steam vortex flow meters are used to measure the flow of boiler tubes and steam in thermal or nuclear power plants;
• 2. Steam gas 4-20mA vortex flowmeter for metallurgical: Steam vortex flowmeter can be used to measure the flow of blast furnace gas and air in the metallurgical industry, providing accurate metering data for metal smelting;
• 3. Steam gas 4-20mA vortex flowmeter for food industry: It can measure the flow rate of steam generated in food processing, effectively ensuring food hygiene and safety.

Technical characteristics

• 1. Wide measuring range: Meacon steam gas 4-20mA vortex flowmeter can measure a variety of media, including steam, 气体, 范围广, high precision.
• 2. High reliability: no moving mechanical parts, simple and solid structure, long-term operation is very reliable.
• 3. Easy maintenance: simple installation, low maintenance, instrument parameters can be stabilized for a long time.
• 4. 强大的抗干扰能力: the output signal is stable and not easy to be interfered by the outside world.
• 5. High degree of intelligence: it can be used with computers and other digital systems to realize automatic control.

Installation and Maintenance

Installation: The installation of vortex flowmeter requires a certain straight pipe section before and after to ensure the measurement accuracy. At the same time, should avoid installation in a strong mechanical vibration, electromagnetic field interference or maintenance is not convenient occasions.

Maintenance: Regularly check the operation status of the flowmeter, including signal output, meter display, ETC。. If abnormalities are found, they should be dealt with in time. 此外, attention should be paid to keep the flowmeter clean and dry to extend the service life.