We offer the widest product range of low-flow (mass) flow meters and controllers on the market. Numerous styles of both standard and bespoke instruments can be offered for applications in laboratory, machinery, industry and hazardous areas.
Customer satisfaction, innovation and quality of product and service have been the cornerstones of Bronkhorst's success. Based on our experience, innovation and sense of responsibility, a relationship with Bronkhorst assures Performance for Life.
Bronkhorst instruments are used for numerous applications in many different markets. In this section you will find an overview of the main markets for our equipment, illustrated with some typical examples of applications.
Are you looking for technical documentation, are you interested to learn more about the measuring principles of Bronkhorst products, or you do want to get in contact with a Bronkhorst Service Engineer? This section will guide you to the relevant service & support topics.
Bronkhorst High-Tech BV the leaders in Mass Flow Meter / Mass Flow Controller technology for gases and liquids, Pressure Controllers and Evaporation Systems.
When you install a mass flow meter or mass flow controller it is important that you get the best performance from the moment you install and turn it on. To help you, I have listed a few simple things you can check focusing on thermal mass flow meters and controllers for gases.
Check out our top 10 tips for installation:
The mounting position is important. For flow meters the preferred position is horizontal, and at high pressures ( > 10 bar for by-pass instruments) all meters should be mounted in this position. Avoid installation in close proximity to mechanic vibration and heat sources.
Avoid abrupt angles – or any objects in the flow path which can cause turbulence - directly on inlet and outlet of your flow instrument, especially for high flow rates. We recommend at least 10x the pipe diameter as the distance between the angle and the inlet of the flow instrument.
If you are interested in why the choice of piping is important for thermal mass flow meters, please read our previous blog for more tips.
Read the instrument’s name plate before installation and check the electrical connection, flow range, media to be measured, inlet and outlet pressure, operating temperature, ATEX classification (when applicable), as well as input and output signals. Also check the sealing material for compatibility with the process gas.
The flow instrument contains electronic components which are sensitive to electrostatic discharges (ESD) – a sudden flow of electricity between two electrically charged objects caused by contact. Contact with electronically charged persons or objects could possibly endanger these components or even result in their failure.
Do not apply pressure until electrical connections are made. When applying pressure to the system, take care to avoid pressure shocks and increase pressure gradually.
Ensure that the piping of the system is clean (before installing the instrument). For absolute cleanliness always install filters to ensure a moisture and oil-free gas stream. It is recommended to install an in-line filter upstream of the mass flow meter or controller, and if back flow can occur, a downstream filter or check valve is recommended too.
Install the mass flow meter or controller in the line and tighten the fittings according to the instructions of the supplier of the fittings.
Avoid small diameter piping on high flow rates, because the inlet jet flow will affect the accuracy and may cause too high pressure drops over the piping and adaptors. Choosing the right piping diameter is also of importance to minimize the effect of turbulence as much as possible. Our previous blog describes the effect of turbulent flow and what to do about this.
Always check your system for leaks, before applying fluid pressure. Especially if toxic, explosive or other dangerous fluids are used.
Apply power to the flow meter or controller and allow for approx. 30 minutes to warm-up and stabilize. This may be done with or without fluid pressure, applied to the system.
I hope that this list is of use. Please feel free to use it as a reference for the next time you need to install a mass flow meter or controller. If you have further questions or if you think I have left anything out then please let me know. At Bronkhorst, we are happy to learn from your experience.