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.
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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.
Selecting the right flow meter is the key to success while selecting the wrong one means nothing but trouble. There are a lot of flow meters to choose from for every kind of application.
The right flow meter is essential for crucial data collection and the wrong one can lead to grief in the budget and costly lost production time. In this blog I will discuss some of the important elements that go into the decision-making process of a flow meter, taking into account the differences between volume- and mass flow measurement. Read below how you can more easily select a flow meter for your application.
If the measuring device and its ancillary equipment need frequent and expensive maintenance, what you saved on that flow meter will quickly dissipate. Moreover, a flow meter that has a higher initial investment can also make up for it by costing less to maintain and operate. Coriolis mass flow meters are more expensive in purchase initially than many other types of flow meters, but can save a great deal of money over time because they are easier to maintain, translating into less downtime.
While it is important to research what type of flow meter is most commonly used in your industry, just selecting what is popular can also lead to disaster. If the flow meter is not appropriate for the application, measurements can be under or over which means valuable material can be lost and revenue negatively impacted.
Advances in technology can also put instruments on the market that may not be as well-known, but provide a better solution. For instance, in the past, inline ultrasound flow meters had to be re-calibrated when a new fluid was introduced and could not be used in applications where hygiene was important. Nowadays new ultrasonic flow meters have solved those concerns and opened up the use of inline ultrasound flow meters to those types of applications.
A flow meter is a highly technical device that is influenced by lots of variables. We’ll breakout the most important ones, but realize that every application is unique.
Some flow meters can be easily eliminated because they simply will not work with the application. For instance, electromagnetic flow meters will not work with hydrocarbons and require a conductive liquid to function. Many flow meters cannot measure gases or slurries. Listed below are some of the main flow meter categories paired with the fluid type the meters can handle.
It is crucial to know the properties of the fluid being measured, below are some of the primary components:
It is also important to know about the physical dynamics of the application site. Some of the physical properties of the site to consider are:
Read in our previous blog why the choice of piping is important for thermal mass flow meters
Last but not least, also the specifications itself have to be taken into consideration when selecting the right flow meter.
Accuracy – Naturally, an important factor of a flow meter is accuracy. To even suggest that accuracy is a variable seems ridiculous. Who would want an inaccurate meter? However, not all flow meters possess the same accuracy; some applications do not even require precision.
Repeatability – Repeatability means the number of times (%) you get the same results running the same test or measurement under the same conditions. Accuracy requires repeatability, but repeatability does not require accuracy. It just needs consistency. Therefore, it can be said that repeatability of a flow meter is often considered even more important than accuracy.
Turndown Ratio or Rangeability – This implies the range that a flow meter can accurately measure the fluid. Usually, it’s best to choose a flow meter with the greatest range available without compromising other components that are more critical.
Hygiene requirements – Flow meters for food, pharmaceuticals, and the medical industry especially demand sterile environments.
Cost – As stated above, this should include installation, maintenance and repairs over time. How much the meter costs to operate, like its electrical demands, can also increase the overall cost of the flow meter.
As you can see, there are a lot of variables to finding the right flow meter and the ones we have listed are only the basics. This does not even touch on the various options in different models. The best way to get the right meter is to get help with your search and team up with experts in the field. Experience matters.
It is important to get your information from people who know these complex and important devices. To let Bronkhorst help in the search for the right flow meter for your needs, please contact us.
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Do you know why the choice of piping is important for a mass flow meter? Read our blog about the deviation in measurement of the flow meter or how to prevent frozen pipes.
When you install a mass flow meter or controller it is important that you get the best performance from the moment you install and turn it on. Check out our top 10 tips for installation of thermal mass flow meters and controllers.
In part 5 of the blog series ‘How to handle low liquid flows’, we explain how external conditions can influence your flow meter.