Transus Instruments / Products / UIM series

UIM-3 and UIM-3F

For Precise and Reliable Flow Measurement in Harsh Environments 

Today there is an increasing need to monitor emissions and improve energy efficiency in order to meet new environmental and economic challenges. These gases are usually dirty and wet and they can contain corrosive gases and liquids. Until now, there have been no suitable flowmeters for many of these applications.

The new UIM-3/3F ultrasonic flowmeters use patented Broadband Continuous Wave© signal processing and high efficiency titanium transducers to provide reliable and precise flow measurement even in the most extreme applications.

Typical Applications

  • Allocation metering
  • Shale gas
  • Flare gas
  • Coal seam gas
  • Biogas
  • Landfill gas
  • Highly accurate path ultrasonic flowmeter, available in fiscal (UIM-3F) and non-fiscal (UIM-3) versions.
  • Meets AGA-9 recommendation.
  • Available in sizes from 2" to 16" and flange ratings up to 150, 300 and 600#.
  • Mass flow and Molecular weight calculation
  • Methane content calculation for biogas applications
  • Retraction tool available for removal and replacement of transducers under pressure.
  • Patented Broadband Continuous Wave technology.
  • Extremely low power operation.
  • Simultaneous transmission on two or more paths means very fast response.
  • Fully Intrinsically safe suitable for Zone 0
  • Extensive diagnostic information using TIMCare™ software.
  • Rugged, highly efficient all metal transducers.
  • xtensive range of versatile I/O including optional pressure and temperature sensors for PTZ conversion.
  • RS485 Modbus communication
  • Local graphic display keypad

The UIM-3 provides a reliable and accurate 3-path gas flow measurement at the price of most single path meters.

The UIM-3F is an economical solution for fiscal measurement where the very high accuracy of UIM-4F is not required.

On-board pressure and temperature sensors allow an integrated solution for PTZ calculation, volume conversion, molecular weight calculations for flare gas or methane concentration biogas. Consult factory about your application.

Flow readings and extensive diagnostics information may be accessed using the local LCD graphics display and keypad or TIM® software to provide constant monitoring of the “health” of the flow system.

Full Intrinsic safety also reduces wiring costs and installation costs and greatly simplifies field maintenance. Display/keypad and field wiring may be accessed in hazardous areas without special precautions.

Head office
Transus Instruments BV
Bloesemlaan 4
3897LN Zeewolde 
The Netherlands

+31 36 799 88 15 

Info & Support
Contact us 
Click here for downloads