Flexim FLUXUS G831 ST-LT Non-Intrusive Steam Flow Measurement for Hazardous Areas

Product Description

The Flexim FLUXUS G831 ST-LT measures steam flow non-intrusively from the outside of the pipe in hazardous areas. Highly sensitive even at very low flow velocities and functions independently of the flow direction. Due to this large flow range (flow velocities from 0.03 ft/s to 196 ft/s), there is no need to reduce pipe diameter to fit an inline meter’s requirement of minimum flow velocity. Moreover, the non-intrusive measurement does not cause any pressure loss. The transducer mountings can be completely insulated to reduce any heat loss to the environment. With FLUXUS G831 ST-LT it is possible to capture all steam usage from very low to very high flow rates with one meter size.

Specifications

Fluid Type
Saturated and superheated steam
Accuracy
Measurement uncertainty of the measuring system (volumetric flow rate): ±0.3 % of reading ±0,005 m/s (±0.02 ft/s)
Measurement uncertainty at the measuring point (volumetric flow rate): ± 1…2 % of reading ±0,005 m/s (±0.02 ft/s)
Repeatability
0.15 % of reading ±0,005 m/s (±0.02 ft/s)
Flow channels
up to 2
Range
Flow Velocity Range: 0,01 to 60 m/s (0.03 to 197 ft/s), depending on pipe diameter
Certifications/Approvals
FM Class I/Div. 1
FM Class 1/Div. 2
ATEX/IECEx Zone 1
INMETRO
NEPSI
PESO
KOSHA
Power supply
100-230VAC
20-32VDC
Pipe size
23 to 1000 mm (0.9 to 39.4 inch)
Pressure range
3 to 10 barg (44…145 psig)
Temperature range (media)
+135 to +180°C (+275 to +356°F)
Output
4-20mA active/passive (optional Ex-ia)
4-20mA HART active/passive (optional Ex-ia)
pulse/frequency/binary
Input
Temperature (optional Ex-ia)
4..20mA (optional Ex-ia active)
Communication Protocol
Modbus RTU
BACnet MSTP
Profibus PA (optional Ex-ia)
Foundation Fieldbus (optional Ex-ia)
System configuration and installation
For more detailed Information please download the Technical Specifications

Features

  • High dynamic flow range even at low flow velocities
  • no pipe diameter reduction - zero pressure loss
  • Integrated mass flow measurement
  • Advanced Meter Verification