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Flow measurement instruments
FLOWSIC150 Carflow

Exhaust gas flow measurement on chassis and engine test benches up to 600 °C

Your Benefits

  • High measured data quality thanks to high measurement accuracy
  • Reliable flow measurement even under minimal flow and during idling
  • Reliable operation thanks to high exhaust gas temperature design
  • Versatile concept – ideal for use on existing test benches
  • Low cost of investment thanks to mobile application with various test benches
  • Convenient installation without feedback on engine characteristics and exhaust gas analysis systems
  • Extended operating time through patented sensor cooling
  • Low operating costs thanks to minimal maintenance requirements

The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.
In accordance with Article 2 (4), this product does not fall within the scope of RoHS directive 2011/65/EU and is also not designed for use in products which fall within the scope of this directive. You can find additional information in the product information.


Exhaust gas flow measurement on chassis and engine test benches up to 600 °C

FLOWSIC150 Carflow offers first-class performance in combination with a compact design. This combination of state-of-the-art sensor technology and powerful electronics enables excellent measurement accuracy for exhaust gas temperatures up to 600 °C. The ultrasonic measurement principle generates no pressure loss, has no moving parts, and works independently of pressure, temperature, and gas composition, ensuring reliable, low-maintenance operation. Due to the direct measurement of the undiluted exhaust gas, FLOWSIC150 Carflow is easy to install, largely non-reactive, and ideally suited for flexible exhaust gas measurement on vehicle and engine test benches.

At a glance
  • Real-time ultrasonic exhaust gas flow measurement
  • Independent from pressure, temperature and gas composition
  • Outstanding measurement accuracy
  • For exhaust gas temperatures up to 600 °C
  • Direct measurement made in undiluted exhaust gas
  • Heated measuring section
  • Minimum backpressure
  • Small footprint, mobile, flexible process connections


Technical overview

  • Technical data overview

    Technical data overview

    Measured valuesGas velocity, volumetric flow a. c., volumetric flow s. c., gas temperature, gas pressure, sound velocity
    Measurement principleUltrasonic transit time difference measurement
    Gas temperature≤ +600 °C
    Operating pressure700 mbar ... 1,300 mbar
    Serial✔ , ✔
    Type of fieldbus integrationRS-232
    FunctionConnection to SOPAS ET software
    Diagnostics functionsSelf test and fault diagnosis
All technical data can be found accompanying the individual product