REFRIGERA 2023 is the leading event exclusively dedicated to the entire production chain of industrial, commercial and logistics refrigeration in Southern Europe. The trade show offers the chance to meet the most important suppliers of technology, machinery, components and services for professionals. The free-admission event, reserved to industry professionals, will also give the chance to take part in seminars and...
NET manufactures and sells a complete range of gas sensing devices on an OEM basis for industrial and commercial applications used by instrument manufacturers worldwide. NET does not manufacture complete instruments or detectors and let alone complete gas detection systems. Nonetheless, oftentimes users ask us for sensor installation guidelines in terms of number and location of sensors. This is a...
NET Cyber Heads have been recently declared conform to Annex LL of IEC 60335-2-40:2018. This short article will explain in greater details the content of Annex LL and what are the requirements of refrigerant detection systems for flammable refrigerants for household and similar electrical appliances. The IEC 60335-2-40 standard deals with the safety of electric heat pumps, sanitary hot water...
IEC 60335-2-40 is presently being used as the basis for the design, evaluation, testing and certification of HVAC equipment using Low GWP refrigerants (A1, A2L, A2 and A3 as defined by ISO 817). IEC 60335-2-40 deals with the safety of electric heat pumps, sanitary hot water heat pumps and air conditioners, incorporating motor-compressors as well as hydronic fan coils units,...
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Different Hydrocarbons have different number of atoms and molecular structure, but in most cases, they can be detected in a common area of the Infrared Spectrum, between 3.0 and 3.5 microns. In other words, a certain degree of cross-sensitivity exists between different hydrocarbon gases as...
A+A 2023 in Düsseldorf A+A, the world's largest and most important event when it comes to personal protection, occupational safety and health at work, will take place in Düsseldorf from October 24-27, 2023. Held in parallel with 38TH International Congress for Occupational Safety and Health, organized by the Bundesarbeitsgemeinschaft für Sicherheit und Gesundheit bei der Arbeit (Basi) e.V. (Federal Association for...
Despite operations running at full tilt here at NET, summer holydays are looming! In wishing happy holidays to all of you, we inform you that our offices will be closed for from August 14th to August 18th. Our last shipment date prior to the closure will be August 9th. Shipments will resume on August 21st. In the meantime, we have...
The most complete range of refrigerant leak detection sensors on the market based on NDIR technology adds yet another option for its users: R-22 in ppm range. Also known as Chlorodifluoromethane or difluoromonochloromethane, R-22 has been phased out under the Montreal Protocol in developed countries in 2020 due to its ozone depletion potential (ODP) and high global warming potential (GWP),...
Happy Holidays from all of us at NET. We inform you that our offices will be closed for summer holydays from August 14th to August 18th. We also inform you that our last shipment date prior to the closure will be August 9th. Shipments will resume on August 21st. Please, remeber to send your purchase orders only to the following address: orders@nenvitech.com. Sincerely, The...
NET offers a strong range of electrochemical cells for the detection of the most common toxic gases, including CO, H2S, CL2, SO2, NH3… in different safety applications. This very cost-effective technology has been used in the industry since the 1960s. Users often ask us clarification about 3 important parameters and the differences among them: cell life, storage life and...
