DN80 ultrasonic flowmeter testing for bio gas application. This ultrasonic flowmeter has been tested for performance  testing for performance at test temperatures: 20⁰C & 80⁰C 

The ultrasonic gas flowmeter operates according to the principle of measuring the transit time of an ultrasonic sound wave. A gas velocity is derived from the difference in transit time of a sound wave travelling in a direction with the flow direction and the sound wave travelling in the opposite direction. The trajectory of the sound wave is called the acoustic path. A chord is the direct path crossing the pipe from one side to the opposite side. Using reflection, an acoustic path can consist of two or more chords.  

In our modern test facility we are able to test your products and assemblies for their behavior and reliability in accordance with standardized conditions, but also under extreme temperature and climate conditions. For the purpose of product development and validation, we provide services which include test methods such as destructive examination, pressure pulse testing, endurance testing, load testing, burst pressure testing, leak and climatic testing. We will gladly advise you on the most efficient and economical way to test and certify your products within the wide range of possibilities we offer.