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.

Medición de los hidrocarburos Flow - FLUXUS HPI Flow Meter

ventajas

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

Aplicaciones

Petróleo y Gas
- Almacenamiento y distribución de petróleo y gas

Hechos técnicas

Cantidades de medición

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

Incertidumbre de medición (caudal volumétrico)

±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

Protección contra explosiones