Clamp-on Ultrasonic Standard Volume Flow Measurement and API Determination of Hydrocarbons

FLUXUS H721 is FLEXIM’s flow and analytical measuring system for the hydrocarbon processing industry (HPI). It combines highly precise non-invasive measurement of volume flow and sound speed with sophisticated calculation features. The transmitter’s internal HPI computer calculates API gravity, operational density, density at base conditions and kinematic viscosity. Temperature and pressure compensation according to industry standards such as ASTM1250, GPA TP25 and D4311 allows for precise standard volume flow measurement of liquid hydrocarbons.

FLUXUS H721 is equipped with a database for a wide range of applications from light hydrocarbons to crude oils/refined products to heavy hydrocarbons. Application-specific parameterisation is easily possible via an editable table on the transmitter with liquid names and specific properties (density, API).

Typical applications of FLUXUS H721 are e.g. monitoring of pipeline integrity, product identification in tank farms, quality check measurements and verification or temporary replacement of stationary measuring devices.

Hydrocarbon Media Detection and Flow Measurement - FLUXUS HPI Flow Meter

优点

Cutting-edge Features of FLEXIM's ultrasonic non-intrusive flow measurement

  • Automatic Fluid Identification and Interface Detection
  • Bi-directional flow metering
  • Superior temperature stability - No zero drift
  • Certified and traceable Multi-Point wet flow calibration
  • Robust “Fit for Purpose” Flexibility and Stability using PERMALOK mounting fixtures
  • Operational capabilities from –40 °C up to +200 °C
  • Extremely high turndown range - capability of measuring at very low flow rates

技术参数

Measuring quantities
  • flow: operating volumetric flow rate, standard volumetric flow rate according to ASTM 1250/TP25/4311, flow velocity, mass flow rate
  • HPI: API gravity, density, normalised density
  • interface detection: slope of the HPI physical quantities
  • fluid detection: according to fluid table
测量不确定度
(体积流量)
±1 % of reading ±0.005 m/s
Transit time (HPI functions)

repeatable:
1/(50 • fα) ±10-4 • t

absolute:
1/(5 • fα) ±10-4 • t

fα – transducer frequency
t – total transit time e.g. for transducers with transducer frequency M (fα = 1 MHz):
repeatable: 20 ns ±10-4 . t
absolute: 200 ns ±10-4 . t

防爆
Transmitter:
ATEX/IECEx zone 2
Transducers:
ATEX/IECEx Zone 2, FM Class I /Div 2
供电电源
100 ... 230 V AC / 50 ... 60 Hz
12 / 24 V DC
输出
4 - 20 mA active
4- 20 mA HART active / passive
pulse / frequency / binary
输入
Pt100 / Pt1000
4 - 20 mA active / passive
binary
数字通信
Modbus RTU/TCP
HART
Profibus PA
Foundation Fieldbus
管径范围
6 mm ... 6500 mm
Temperature range (pipe wall)
-40 °C ... +240 °C
附加信息
For more detailed Information please download the Technical Specifications

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Clamp-on Ultrasonic Standard Volume Flow Measurement and API Determination of Hydrocarbons

宣传册

FLUXUS H721

技术规范
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