Stainless Steel Flange Type Vortex Flow Meter for Steam / Air / Liquid

1. Introduction

LUGBML is based on vonkarman's vortex principle and uses pyelectron crystals as a test element. It is a new type of stress detection vortex street flow meter. It has the advantages of large range ratio, high precision, small pressure loss, good media versatility, pulse output and flow ratio, easy to connect with the computer, because the sensor probe and vortex generator are installed separately, high temperature-resistant die-electric crystals do not touch the instrument simple structure, good versatility, high stability. The LUGBML series of vortex street flow meter sensors can be used to detect and measure the flow of a wide range of gases, liquids and vapors. Can be used with my company ML6000 series vortex street flow meters. It can also be combined with computers and temperature, pressure, density sensors to form a high-precision mass flow or heat flow detection system.

2. Design & Installation

It is important to install the instrument, which can affect accuracy, service life and damage if not installed well.

1. In order to avoid high-power, high-frequency, high-power switch sets, instrument supply should avoid close to these devices.

2. Avoid high temperatures and radiation sources. If installation is required, thermal ventilation measures are required.

3. In order to avoid high temperature and enchanted gas, if the installation is necessary, ventilation measures should be taken.

4. The vortex flow meter should avoid installing in the wiggling part of the pipe. If it must be mounted, add a clamping device and a 2D vibratory pad to enhance shock protection. The instrument is best installed indoors, outdoor installation when pay attention to waterproof, pay special attention to the connector, so that the cable wire into a U-shaped, to avoid water into the amplifier body, installation should save enough space in order to install the connector and daily maintenance.

3. Specifications

1) Measuring medium: Steam,gas, liquid(Avoid of multiple- direction fluid)

2) Accuracy:Liquid:1.0% Gas:1.5%

3) Repeatability:Liquid 0.33% Gas:0.5%

4) Range:Liquid:0.7m/s~7m/s Gas:7m/s~40m/s

5) Working pressure:Standard 1.6MPa,2.5~4.0 MPa (on request)

6) Fluid temperature:-40℃~250℃(Common type)；100℃~350℃(High-temperature type)

7) Body material:304 stainless steel(SS316 is optional)

8) Output signal:Pulse(three wires,low level≤1V;High level≧4V);4~20mA;RS485

9) Power supply:24VDC(12VDC),Lithium battery

10) Ambient temperature : -35 ℃ ~ 60 ℃ ( without LCD ); -5℃~60℃(with LCD)

11) Relative humidity:5~95%

12) Protection level:IP65

13) Electrical connection:M20*1.5

4. Working Principle

The vortex flowmeter is a volume flowmeter that is researched and produced according to the Karman vortex principle to measure the volume flow of gas, steam or liquid, the volume flow of standard conditions or the mass flow. It is mainly used for flow measurement of industrial pipeline medium fluid, such as gas, liquid, steam and other media.

It is characterized by small pressure loss, large measuring range, and high accuracy. It is hardly affected by fluid density, pressure, temperature, viscosity and other parameters when measuring volume flow under working conditions. There are no movable mechanical parts, so the reliability is high and the maintenance is small. The instrument parameters can be stable for a long time. The vortex flowmeter adopts piezoelectric stress sensor, which has high reliability and can work in the working temperature range of -20℃～+250℃. It has analog standard signal and digital pulse signal output, which is easy to use with digital systems such as computers. It is a relatively advanced and ideal measuring instrument.

4. Dimensional Sketche

5. Configuration