Industrial Vortex Flow Meter LUGB

Widely used in various metering pipeline drainage, industrial recycling, waste water treatment, oil and chemical reagents as well as compressed air, saturated and superheated steam, gas and a variety of media traffic

Measuring media: gas, liquid and steam

Range: Liquid measuring range: 1.2-2000m³ / h gas Measuring range: 5-11000m³ / h

Output signal: pulse signal, 4 ~ 20mA signal

Accuracy: Liquid: ± 1% of gas or steam: ± 1.5%, ± 1%

Medium temperature: -40 ℃ ~ + 250 ℃, -40 ℃ ~ + 320 ℃

Explosion levels: ExdIIBT6 or ExiaIICT4

Protection: IP65

Product Overview body detection probe and the corresponding electronic circuits and other components LUGB series of pipeline vortex flowmeter vortex is generated by the design in the flow field. When the body fluid flows through the vortex, its sides formed two rows of alternating vortex, this vortex is called Karman vortex street. Strouhal on the basis of Karman vortex street theory proposed the velocity is proportional to the frequency of Karman vortex fluid, and gives the frequency and velocity relationship:

f = St × V / d

Where:

Vortex frequency of f (Hz)

The average flow rate in both sides (m / s) V vortex

St coefficient (constant)

These alternating vortices to form a series of alternating negative pressure, which acts on the detection probe, they form a series of alternating electrical signal converted by the preamplifier, shaping, amplification processing, output and Vortex synchronization proportional to the pulse frequency signal (or standard signal).

Product Features

No moving parts, long-term stability, simple structure, easy installation and maintenance;

Sensor output pulse frequency, the actual frequency of the measured fluid flow is linear, zero drift, performance is very stable, the structure forms, there are pipes, plug-flow sensor form;

Higher accuracy, measurement accuracy is typically liquid is ± 1.0%; gas measurement accuracy is ± 1.5%;

Measurement range wide range of Reynolds numbers in the range of 2 × 104 ~ 7 × 106, up to 1:20;

Pressure loss is small (about orifice flowmeter 1/4 to 1/2), are energy-saving flow meter;

Flexible installation, according to the site process pipe barrier can be horizontal, vertical and inclined at different angles to install;

Consumers using the scramble circuit and vibration sensor head, a certain resistance to environmental vibration performance;

Ultra-low-power single-chip microprocessor technology, Section 1 3V10AH lithium battery can be used more than 5 years;

Software on the instrument coefficient nonlinear correction, to improve the measurement accuracy;

EPROM cumulative traffic using power-down protection, protection longer than 10 years;

Technical Parameters

Implementation of standards: Vortex Flowmeter (JJG1029-2007)

Meter diameter (mm): 15,20,25,32,40,50,65,80,100,125,150,200,250,300

Nominal pressure (Mpa): 1.6Mpa, 2.5Mpa, 4.0Mpa (others can be customized)

Accuracy class

Liquid: ± 1%

Gas or steam: ± 1.5%, ± 1%

Turndown ratio: 1:10; 1:15; 1:20

Sensor material: 304, 316 (L) stainless steel

Conditions of Use

 Medium temperature: -40 ℃ ~ + 250 ℃, -40 ℃ ~ + 320 ℃

 Ambient temperature: -20 ℃ ~ + 60 ℃

 Relative humidity: 5% to 95%

 Atmospheric pressure: 86Kpa ~ 106 Kpa

Signal output: Pulse signal, 4 ~ 20mA signal

Communication output function: RS485 communication output, HART protocol

Power supply

External power supply: 34VDC ± 15%, ripple ≤ ± 5%, suitable for 4 ~ 20mA output, pulse output, RS485 communication output, etc.

Power within: Group 1 3.1V10AH lithium battery, the battery voltage is 2.0V ~ 3.0V during normal operation and can be

Signal Line Interface

Basic: Housman connector or comes three core cable; Explosion-proof: internal thread M20 × 1.5

Explosion levels: ExiaIICT5 or ExdIIBT6

Protection class: IP65 or higher (can be customized)