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概述

The ultrasonic flow meter for operation in hazardous areas with intrinsically safe process inputs

The FLUXUS F831 is FLEXIM's dual channel ultrasonic clamp-on flow meter for bi-directional flow measurement of liquids in hazardous areas (ATEX, IECEx Zone 1 and FM Class I, Div. 1 approved).

With its explosion proof housing, intrinsically safe inputs and the corrosion resistant transducers residing outside the pipe wall, but inside the rugged VARIOFIX C mounting fixture, ensuring a permanent contact pressure and high mechanical stability, the FLUXUS F831 series is perfectly suited for every demanding industrial application in and out of the oil field and the chemical industry. The connection and electronics compartments of the FLUXUS F831 are hermetically sealed, so that the measurement system provides maximum operational reliability and safety.

With faster processing capabilities, the meter offers significantly improved accuracy and response time between measurement channels which results in better representation of flow profile and high accuracy. In addition, the FLUXUS F/G831 comes with carefully matched and temperature compensated transducers (fully ANSI / ASME MFC 5M compliant) providing unmatched zero-point stability and precise bi-directional flow measurement over a wide range of conditions.

The FLUXUS F831 flow meter can be applied on inner pipe diameters ranging from 10 mm to 6500 mm (no limitations on pipe wall thickness or material) and media temperatures from -190°C up to +630°C (by use of the high temperature mounting fixture WaveInjector).

With up to two measurement channels, the FLUXUS F831 flow meter is also ideal for difficult measurement points with non-ideal flow profiles. Even liquid streams with high solids content or gas bubbles are not a problem due to the innovative HybridTrek mode and the unique signal processing implemented into the flow computer.

优点

  • Bi-directional flow measurement of liquids and gases in FM Class I, Div. 1 and ATEX / IECEx Zone 1 areas
  • Very cost effective: No pipe work, No process shut-down, Virtually maintenance-free
  • Matched, paired and wet calibrated flow transducers (traceable certification to national standards)
  • Excellent zero-point stability and drift-free
  • Wide turndown ratio
  • Independent of pipe size, material, operating pressure, medium and temperature (from as low as -170 °C up to +630 °C)
  • High tolerance to entrained solids and gases
  • Free of wear and tear and abrasion
  • Not prone to clogging or corrosion
  • No pressure loss or risk of potential leaks and fugitive emissions

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行业应用

high-temperature-flow-measurement-within-the-production-process-of-tda.jpg

High Temperature Flow Measurement within the Production Process of TDA

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技术参数

测量不确定度(体积流量)
±0,3 % of reading ±0.005 m/s
Measurement uncertainty at the measuring point (volumetric flow rate)
±1,0 % of reading ±0.005 m/s
重复性
0.15 % of reading ±0.005 m/s
流速范围
0.01...25 m/s
防区发射机
ATEX/IECEx Zone 1
FM Class I - Div1
供电电源
100-230VAC, 24DC
可用传感器
Shear Wave
对于防爆区
ATEX/IECEx Zone 1
FM Class I - Div1
适用于管道尺寸范围
10mm ... 6500mm
适用于温度范围
-40°C ... +240°C / WI: -200°C ... +630°C
输出
4-20mA active/passive
4-20mA HART active/passive
4-20mA passive (Ex ia)
pulse/frequency/binary
输入
Temperature (Ex-ia)
4..20mA (Ex-ia activ)
数字通信
Foundation Fieldbus-Ex-ia
Profibus PA-Ex-ia
4..20mA HART (Ex-ia passiv)
附加信息
For more detailed Information please download the Technical Specifications