25Mar
19Mar
Comment fonctionne un capteur de réfrigérant
A refrigerant sensor works by sampling the surrounding air, detecting a physical or chemical change caused by leaked refrigerant, converting that change into an electrical signal, and then triggering an alarm or control action when the gas concentration crosses a defined threshold. The exact mechanism...
13Mar
Déplacer l'oxygène expliqué : pourquoi c'est dangereux et comment le détecter
« Déplacer l'oxygène » expliqué : pourquoi c'est dangereux et comment le détecter
When a safety label or SDS says a gas can “displace oxygen,” it’s warning about a simple but deadly mechanism: a released gas dilutes the air, reducing the oxygen available for breathing. Unlike many toxic...
06Mar
Principes des capteurs de réfrigérant : comment fonctionnent réellement les détecteurs de fuites de réfrigérant
Refrigerant sensors are no longer “nice-to-have.” As the market moves from legacy A1 refrigerants toward A2L mildly flammable blends (R32, R454x, R1234yf/ze), leak detection increasingly becomes part of a safety function, not just a maintenance tool. A2L definitions and limits come from refrigerant classification work...
28Feb
Le choix d'un réfrigérant de remplacement modifie vos exigences de détection
Replacing an older refrigerant (like R-134a or R-410A) is no longer just a “performance + oil compatibility” decision. Today’s most common replacements are A2L mildly flammable refrigerants (R32, R454 blends, R1234yf/ze), and sometimes A3 highly flammable hydrocarbons (R290, R600a). That shift changes what the system...
06Feb
R-134a Replacement Refrigerants: How to Choose the Right Substitute (Retrofit & New Equipment)
R-134a (HFC-134a) has been one of the most widely used refrigerants for automotive A/C, medium-pressure chillers, and many refrigeration applications. The problem is climate impact: under widely used IPCC AR4 values, R-134a has a 100-year GWP of 1,430 and is classified A1 (non-flammable, low toxicity).Because...
28Jan
Capteur A2L : Le guide complet de détection des fuites de réfrigérant légèrement inflammable (R32, R454B, R1234yf…)
1) Qu'est-ce qu'un fluide frigorigène A2L ?
“A2L” is a safety classification used for refrigerants:A = lower toxicity (based on occupational exposure criteria)2L = mild flammability with lower burning velocity; A2L refrigerants must have burning velocity ≤ 10 cm/s per common interpretations tied to Ashrae 34...
22Jan
Capteur R290 (réfrigérant propane) : Le guide OEM complet de la détection des fuites A3
1) Qu’est-ce que le R290 et pourquoi nécessite-t-il une détection dédiée ?
R290 is propane (C₃H₈) used as a natural refrigerant in air conditioners, heat pumps, and refrigeration equipment. Its biggest advantage is climate impact: GWP is typically stated...
16Jan
Réfrigérants HFC : le guide complet (signification, utilisations, GWP, réduction progressive et détection des fuites)
Qu'est-ce qu'un HFC ?
HFC stands for hydrofluorocarbon—a family of man-made gases widely used as refrigerants in air conditioning and refrigeration, and also used in foams and aerosols. HFCs were introduced largely as replacements for older ozone-depleting refrigerants, but many HFCs still have very high climate...
05Sep
