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  • Flexim FLUXUS H831 Hazardous Area Hydrocarbon Meter for Standard Volume Flow
Flexim-FLUXUS H831 Hydrocarbon Meter Standard Volume Flow

Flexim FLUXUS H831 Hazardous Area Hydrocarbon Meter for Standard Volume Flow

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Product Description

The Flexim FLUXUS H831 is Zone 1 hazardous area rated flow and analytical measuring system for the hydrocarbon processing industry (HPI). This sophisticated and highly accurate non-intrusive flow meter combines very precise ultrasonic flow and sound speed measurement, advanced calculation features and diagnostics with a robust, durable and industry minded "fit for purpose" explosion/ flameproof housing. The H831’s nonintrusive flow meter built-in HPI computer calculates API gravity, operational density, density at base conditions and kinematic viscosity. Volumetric flow rates reported by the meter are automatically compensated for live temperature and pressure inputs according to industry standards ASTM1250, GPA TP25 and D4311.

Specifications

Accuracy
Measurement uncertainty of the measuring system (volumetric flow rate): ±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
Repeatability
0.15 % of reading ±0.005 m/s
Measurement Uncertainty
HPI Measurement Uncertainty: Normalized Volume: ±1% (crude oil, refined products, liquefied gases, heavy oils)
Operating density, normalized density Repeatability:±1% (with field calibration of speed of sound)
Range
Flow Velocity Range: 0.01...25 m/s
Certifications/Approvals
ATEX/IECEx Zone 1
FM Class I - Div1
Power supply
100-230VAC, 24DC
Transducers Available
Shear Wave & Lamb Wave

for Ex zones:
ATEX/IECEx Zone 1
FM Class I - Div1

for pipe sizes range:
10mm ... 6500mm

for temperature range:
-40°C ... +240°C / WI: -200°C ... +630°C
Output
4-20mA active/passive
4-20mA HART active/passive
4-20mA passive (Ex ia)
pulse/frequency/binary
Input
Temperature (Ex-ia)
4..20mA (Ex-ia activ)
Communication Protocol
Foundation Fieldbus-Ex-ia
Profibus PA-Ex-ia
4..20mA HART (Ex-ia passiv)
System Configuration and Installation
For more detailed Information please download the Technical Specifications

Features

  • Fit for Purpose: Process Inputs (pressure and temperature) enabled for Hydrocarbon Processing Applications and standard flow reporting according to industry standards ASTM1250, GPA TP25 and D4311
  • Highly 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)
  • Free of wear and tear and abrasion
  • Not prone to clogging or corrosion
  • No pressure loss or risk of potential leaks and fugitive emissions
  • Advanced Meter Verification

Documents & Drawings