Different gases are used every day in air conditioning and refrigeration systems. All have different thermodynamic, thermophysical and chemical properties, making it more or less suitable to a specific type of system. But when choosing a refrigerant, it is not all about technological aspects. Environmental and safety regulations, local standards, maintenance aspects and disposal considerations all play a role...
Why Size Matters for NDIR Gas Sensors NET manufactures a wide range of optical gas sensors for carbon dioxide, flammable gas, refrigerants and SF6. The sensors are provided with all required driver circuitry on-board to make their use as simple as possible. They are provided in primarily two differently sized housings: either as a 20 mm diameter cylindrical device or...
The Remora module is the newest addition to our NDIR range. This very cost effective device has the same features and gas list as the IREF-Lite but it is designed to be integrated directly on chillers and other refrigeration equipment instead of a gas detector. Every aspect of the hardware can be fully tailored on the customer’s criteria and application needs. KEY...
NEW ATEX MARKING FOR NET2X/3X SENSOR HEADS – NOW FOR USE IN UNDERGOUND MINES NET has just renewed the ATEX certificate for NET2X/3X sensor heads (certificate CESI01ATEX066U). In addition to the existing “II 2G Ex db IIC Gb” marking, from May 2022 the enclosures will be available also with the "I M2 Ex db I Mb" marking. This significant addition allows...
With the goal of providing more and more solutions suited to the HVAC and Refrigeration industries, NET has recently joined as International member the Air-Conditioning, Heating, and Refrigeration Institute (AHRI). AHRI is the trade association representing manufacturers of HVACR and water heating equipment within the global industry. AHRI advocates on behalf of its members at all levels of government, working...
This short video will walk you through the main areas of interest of our new website. See what is new in the PRODUCT section and familiarize with the GAS SELECTION page. Don’t forget to take a look at our TECHNOLOGIES section to learn more about the innovations making our solutions special. In the CONTACT section, you will find new and dedicated areas...
According to Wikipedia, fail-safe in engineering is “a design feature or practice that in the event of a specific type of failure, inherently responds in a way that will cause no or minimal harm to other equipment, the environment or to people”. In other words, a fail-safe system is designed to avoid situations where a fault which prevents the...
According to Wikipedia, “Safety integrity level (SIL) is defined as a relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction. In simple terms, SIL is a measurement of performance required for a safety instrumented function (SIF).” With certification requirements for industrial fire and gas detection (especially in Europe with the introduction of...
When it comes to refrigerant leak detection, the predominant sensing technologies are undoubtedly Non-Dispersive InfraRed (NDIR) and Metal-Oxide Semiconductor (MOS), due to their ability to respond to this type of target gases and the many limitations of other common detecting methods such as electrochemical cells and catalytic pellistors. NDIR and MOS technologies differ both in functioning and in price...
During the course of 2017, the Air-Conditioning, Heating and Refrigeration Technology Institute, Inc. (AHRTI) released a complete assessment to investigate which of the available refrigerant sensor technologies would be able to meet the anticipated update of current international and U.S. standards for HVACR systems. Specification requirements for A2L refrigerants, including refrigerant sensor requirements such as response time and measurement ranges,...
