User Manual

Operations Overview

Congratulations on your purchase of the ROBINAIR TruTrack Ultra-

sonic Leak Detector, the only ultrasonic instrument specifically designed

for air conditioning and refrigeration leak detection. The TruTrack is the

ideal tool for detecting both vacuum and pressure leaks of any refriger-

ant. Because this instrument detects sound, it is gas independent. Even

dry nitrogen leaks can be detected.

The TruTrack Ultrasonic Leak Detector locates leaks in gas saturated

areas, in windy conditions, and in systems under negative pressure

(vacuum states). It eliminates the need to use tracer gases since it uses

sound waves to locate leaks.

DESCRIPTION

The TruTrack Ultrasonic Leak Detector is a noninvasive detector that

locates both pressure and vacuum leaks. It represents an advanced level

of technology, because it is a listening device that detects ultrasonic

sounds, not chemical refrigerants.

A leak is any unwanted flow of a substance out of a system, or in a

vacuum, into a system. Friction in flow generates sound. For example,

water flowing in pipes creates sound just as air leaking out of a tire. The

sound humans can hear represents less than a third of the total spectrum

of frequencies generated. The sound made by small leaks is mostly

ultrasonic—above the human hearing range.

The TruTrack Ultrasonic Leak Detector “hears” the sound of the turbu-

lent gases moving through the opening at the leak site and displays the

strength of the sound. The larger the leak, the stronger the indication on

the detector. The detector also produces an audio reproduction of the leak

sound. The intensity of the audio changes proportionally to the intensity

of the leak sound.

Introduction