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.
Learn more about how Coriolis-based flow meters can be used as microfluidic flow meter instead of thermal flow meters. Read the customer story of a microfluidics system builder who used Bronkhorst products.
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.
Accuracy, reliability and safety are requirements for instrumentation used in test equipment for ATEX environments, when gas mixtures of precise composition are necessary.
Instead of buying ready-to-use mixtures, it is cheaper and more simple in logistics, to use self-made mixtures for testing. Instead of 30 bottles with various expensive mixtures supplied by gas manufacturers, only 6 bottles with single gases have to be purchased
System for Instrinsic safety test including gas delivery and mixing and ignition chamber acc. to BS EN 50020:2002. Explosive mixtures of certain composition has to be delivered to the ignition chamber in a certain time and amount. Each test can be processed automatically or manually. After test completion ignition chamber is automatically purged.
Intrinsic safety test
The intrinsic safety test apparatus consists of ignition chamber with electrodes system and delivery and mixing of gases system. Ethylene, Propane, Methane, Hydrogen, Oxygen and Air are delivered from gas cylinders and mixed on flow. Various explosive mixtures are produced according to BS EN 50020:2002. The mixture of required accuracy is used to fill ignition chamber, which has ignition turntable and electrodes system which can test if circuit under test can cause an explosion. Each test starts with checking ignition ability of mixture and electrodes. The RLC standard circuit have to cause explosion. Thus each test starts with explosion which requires certain safety precaution to avoid explosion in gas supplying lines and flow meters. Some redundant flame arresters are applied as well as check valve.
The gases are delivered by explosion protected mass flow controllers controlled by a readout/control unit and a PLC which controls all the test timing and mixture composition. Some mixtures are pre-installed in the PLC, some other can be programmed by the user.