Electronic Leak Detectors
Electronic leak detectors use heated or ionized sensors to locate
refrigerant leaks. It is important to identify refrigerant gas leaks as
they can increase ozone depletion and, in large amounts, cause heart
problems when inhaled by humans. Refrigerant gases are commonly used in
industrial and commercial coolant systems.
Electronic leak detectors are the most sensitive mechanisms of all the leak detectors and provide the fastest path to identifying and locating a gas leak. They are used more often than the other common leak detection systems, ultrasonic leak detectors, gas detectors and flame ionization leak detectors. The electronic model can be programmed to identify a specific refrigerant or to include multiple possibilities. R12, R22 and R134a are among the most common refrigerants to be identified by electronic leak detectors, although R134a is more difficult to detect even with electronics. These numbers stand for three common gas leaks: helium, Freon and halogen. Many electronic leak detectors are handheld, to make it as easy and inexpensive as possible for owners of homes and businesses to make sure the air they breathe is safe. The danger of refrigerant gas leaks, to the health of individuals as well as to the equipment or furniture in the vicinity, can be devastating. A vast variety of industries, including medical, industrial manufacturing, aerospace and automotive shops run the risk of leaks, not to mention any home or office with a central air system or refrigerator.
While nearly all types of leak detectors involve electronic components, heated diode and corona discharge are the two main types of electronic leak detectors. The most common electric run mechanism uses the corona discharge technology. A high voltage corona, or circle, is created in the sensing tip. When entered into the field around the sensor, refrigerants break the corona barrier and trigger an alarm to notify the user of the leak. Despite their popularity, the major flaw of corona discharge leak detectors is that the corona barrier can be broken by other particles such as dust and moisture in the air, causing a false alarm. The heated diode electronic leak detectors, although they function in much the same way, have fewer false positives because of the heated sensor. The heated sensors of this particular detector are triggered by absolute concentration, which causes alerts to increase as refrigerant amounts increase indicating proximity to the leak.
Electronic Leak Detectors - Furness Controls