Uf 841

The latest addition to the Ultraflux range, the Uf 841 ultrasound flow meter has been specially designed for use in high risk zones. All its components are protected in its robust stainless steel unit. This ATEX certified flow meter allows you to undertake reliable measurements in complete safety. This converter can be coupled with different probes in the Ultraflux range.

Nature of equipment

Fixed flow meter for use in hazardous explosive atmospheres

Conditions of use

On full pipes

Pipe diameters

  • Up to 10000 mm for liquids,
  • Up to 1500 mm for gas.

Standard mounted inputs/outputs

2 static relay outputs (50 V – 10 mA) usable as frequency outputs (up to 1KHz)

Optional inputs/outputs

Jusqu’à 4 modules simples (ou 2 modules doubles) parmi :

  • 1 isolated, active analogue output: current 4-20mA, 0-20mA, 0-24mA,
  • 2 static relay outputs usable as frequency outputs (up to 1kHz),
  • 2 isolated current inputs 4-20mA, 0-20mA, 0-24mA,
  • 2 isolated, passive analogue 0-10V inputs: 0 t o 15V voltage,
  • 2 PT100/PT1000 temperature inputs – taking up the physical space of 2 modules,
  • 2 contact 5 V inputs (pulse or state).


IP 66 & IP 67


Up to 0,5 %

Troubleshooting help

  • Oscilloscope function (echo displayed),
  • Gain,
  • Quality index.

Maximum number of speed chord


Available models

  • Single pipe
  • Multi-pipe

Typical applications

  • Offshore: High-pressure gas flow, injected water flow, crude oil flow, condensate flow, injection fluid flow, etc.
  • Hydrocarbons: Gas flow, monophasic liquid flow, crude and refined product flow, etc.

Download Uf 841 datasheet

  • fluides_mesures_gazeux

  • fluides_mesures_liquides