Electronic Halogen Leak Detectors
Tool Required:
J 39400 Halogen Leak Detector
This type of leak detector has been found to be the most useful tool in locating refrigerant leaks. The J 39400 is a small unit which operates on 12 volts dc and provides an audible signal which increases in frequency when leaking refrigerant is detected. There are three settings: one for R-12, one for R-134a, and one for gross leaks. The gross leak setting is for isolating very large leaks already found at one of the other two settings. Care must be taken that the instrument is properly calibrated, per the included instructions, and that it is used at the proper setting for the type of refrigerant in the system being tested.