Fixed Gas Flow meter - G704

  • Flow Velocity
    0.01...35 m/s
  • Measuring Functions
    Physical Quantities: operating volumetric flow rate, standard volumetric flow rate, mass flow rate, flow velocity
  • Data Logger
    Capacity > 100 000 measured values
  • Explosion Protection
    Covered by ATEX/IECEx zone 2 certification, Rugged transducers (ATEX/IECEx zone 1 and 2, resistant to rough environments, dust and humidity)
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The FLUXUS® G704 is FLEXIM's gas flow meter for permanent installation in nearly any gas flow metering application. Its non-intrusive measurement technology ensures a precise bi-directional, highly dynamic gas flow measurement of operational and standard volume flows.

As the transducers are mounted on the outside of the pipe wall in rugged mounting fixtures, the system does not suffer from wear and tear or clogging, can't be a risk for leaks and will not cause any pressure drops inside the pipe.

With up to two measurement channels, the FLUXUS G704 permanent gas flow meter can also be applied to difficult measurement points and is completely unaffected by gas density, viscosity and composition as well as dust and humidity. Even wet gas up to Liquid Volume Fractions of 5% can be measured.

Technical Data:

General Specification
flow velocity

0.01...35 m/s, depending on pipe diameter

repeatability  0.15 % of reading ±0.01 m/s

all acoustically conductive gases,
e.g. nitrogen, air, oxygen, hydrogen, argon, helium, ethylene, propane

Accuracy (volumetric flow rate) 

± 1...3 % of reading ±0.01 m/s depending on application
± 0.5 % of reading ±0.01 m/s with field calibration

housing material aluminum, powder coated
Transmitter degree of protection IP65
power supply 100...230 V/50...60 Hz or
20...32 V DC
display 2 x 16 characters, dot matrix, backlight
physical quantities operating volumetric flow rate, standard volumetric flow rate, mass flow rate, flow velocity
totalizer volume, mass
Data Logger capacity > 100 000 measured values
loggable values all physical quantities, totalized values and diagnostic values
SD card, removable (optional) loggable values: all physical quantities and totalized values with min. 2 GB capacity
Communication Interface - process integration (optional): RS485 (emitter) or Modbus RTU or HART or BACnet MS/TP or SD card
- diagnosis: RS2321
Outputs switchable current output, Current, Voltage, Frequency, binary
Inputs Temperature, Current, Voltage, Binary
Explosion Protection

For Transmitter: Zone 2

For Transducer: Zone 1 or Zone 2

Chamical Industry

Manufacturing Industry

Oil & Gas Sector