LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter

LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter

LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter adopts microprocessor technology, which has the advantages of strong function, wide flow range, simple operation and maintenance, convenient installation and use, and its main technical indexes reach the level of similar foreign products. Intelligent Procession Vortex gas flowmeter is widely used in various gas metering in petroleum, chemical, electric power, metallurgy, coal and other industries.

Working principle of LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter

The flow profile of the flow sensor resembles the profile of a venture. A set of helical guide vanes are placed on the inlet side. When the fluid enters the flow sensor, the guide vanes force the fluid to produce a violent vortex flow. When the fluid enters the diffusion section, the vortex flow is affected by the back-flow and begins to perform secondary rotation, forming a gyroscopic vortex procession phenomenon. The procession frequency is proportional to the flow rate and is not affected by the physical properties and density of the fluid. The detection element measures the fluid secondary rotation procession frequency to obtain good linearity in a wide flow range. The signal is amplified, filtered and shaped by the amplifier and converted into a pulse signal proportional to the flow rate, and then sent to the microprocessor together with the detection signals such as temperature and pressure for integration processing, and finally displayed on the liquid crystal display. Results (instantaneous flow, cumulative flow and temperature, pressure data).

Features of LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter

1. Built-in pressure, temperature, flow sensors, high safety performance, compact structure, beautiful appearance.

2. In-situ display of temperature, pressure, instantaneous flow and cumulative flow.

3. Using a new signal processing amplifier and unique filtering technology, the interference signal caused by pressure fluctuation and pipeline vibration is effectively eliminated, which greatly improves the resistance of the flowmeter and makes the small flow have excellent stability.

4. The unique function of time display and real-time data storage, no matter what the situation, can ensure that the internal data will not be lost and can be stored securely.

5. The power consumption of the whole machine is extremely low, and it can be powered by the internal battery*, which is an ideal display instrument on the spot without external power supply.

6. The anti-theft function is reliable, with password protection to prevent parameter changes.

7. The LUXB-15 meter head can be rotated 180 degrees at will, which is easy to install.

Main tech data of LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter

Standard state conditions: P=101.325KPa, T=293.15K

Conditions of use:

Ambient temperature: -30℃～+65℃

Relative humidity: 5% to 95%

Medium temperature: -20℃～+80℃

Atmospheric pressure: 86KPa～106KPa

Working power supply:

A. External power supply: +24VDC±15%, ripple <5%, suitable for 4~20mA output, pulse output, alarm output, RS-485, Hart, etc.;

b. Internal power supply: 1 set of 3.6V lithium battery (ER26500), when the voltage is lower than 3.0V, an undervoltage indication will appear.

Power consumption of the whole machine:

A. External power supply: <2W;

b. Internal power supply: The average power consumption is 1mW, which can be used continuously for more than two years.

Output mode

1) Pulse output

2) Equivalent output

3) RS-485 communication (optical isolation)

4) 4-20mA standard current signal (optical isolation)

It is proportional to the standard volume flow, 4mA corresponds to 0 m3/h, 20 mA corresponds to the maximum standard volume flow (this value can be set in the first-level menu), system: two-wire, three-wire, four-wire, the flowmeter can be It is automatically recognized according to the inserted current module and output correctly.

Control signal output:

A. Lower limit alarm signal (LP): photoelectric isolation, high and low level alarm, alarm level can be set, working voltage +12V~+24V, maximum load current 50mA;

b. Upper limit alarm signal (UP): photoelectric isolation, high and low level alarm, alarm level can be set, working voltage +12V~+24V, maximum load current 50mA;

c. Close valve alarm output (BC terminal, for IC card controller): logic gate circuit output, normal output low level, amplitude ≤ 0.2V; alarm output high level, amplitude ≥ 2.8V, load resistance ≥ 100kΩ;

D. Battery under-voltage alarm output (BL terminal, for IC card controller): logic gate circuit output, normal output low level, amplitude ≤ 0.2V; alarm output high level, amplitude ≥ 2.8V, load resistance ≥ 100kΩ;

Note: Any special design or question of LUXB LUXB-15 LUXB-20 LUXB-25 Vortex flowmeter,kindly contact the manufacturer for more details.