Operating Manual Model 16455 TruTrack Ultrasonic Leak Detector
Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . 3 Operation of Unit . . . . . . . . . . . . . . . . . . . . . . . . . 4 Tips on Use . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction Congratulations on your purchase of the Robinair TruTrack Ultrasonic Leak Detector, the only ultrasonic instrument specifically designed for air conditioning and refrigeration leak detection. TruTrack is the ideal tool for detecting both vacuum and pressure leaks of any refrigerant. Because this instrument detects sound, it is gas-independent. Even dry nitrogen leaks can be detected.
Introduction Theory of Operation The theory of operation of the TruTrack Ultrasonic Leak Detector is based on the turbulent flow of fluids and gases. Turbulent flow has a high content of ultrasound, which is above human hearing range but can be heard by TruTrack and traced to its source. Turbulence must occur for a leak to be detected.
Operation of Unit Operating the TruTrack Ultrasonic Leak Detector 1. Plug the headphones into the jack located on the right side of the instrument. 2. Slide the sensitivity adjustment all the way forward toward the sensor. The instrument is now set at full sensitivity. 3. Press and hold the ON/OFF button to turn on the instrument. The button requires minimal pressure. NOTE: You can use your left thumb to hold this button and your left index finger to adjust the sensitivity level.
Operating Tips Tips on Use 1. If you are trying to find a leak in a confined area, use the flex tube insert located in the nose of the instrument. You can use any length of tubing (it is a standard 1/4 in.), but remember that the sensitivity reduces as the tube gets longer. 2. When preparing to test for leaks, pressurize the system as much as safely possible. Increasing the pressure can double the flow through a hole or crack, making leak detection easier. 3.
Operation A Note About Sensitivity Ultrasonic leak detectors “hear” leaks; therefore, the sensitivity is accurately stated in terms of decibels. The amount of sound pressure created by the leak determines its ability to be detected ultrasonically. The TruTrack Ultrasonic Leak Detector detects the most common leaks encountered in refrigeration equipment. Left untreated, these leaks would result in the loss of several pounds of refrigerant into the atmosphere over a period of time.
Types of Sounds Background Noise The TruTrack Ultrasonic Leak Detector detects a narrow band of ultrasonic sound. There might be overwhelming background noise, but those sounds are not normally within the detection range of the detector. The detector’s patented circuitry reproduces the sound signature of the signal it detects. Consequently, the sound you hear is closely related to the actual sound. It is an actual translation, not an electronically synthesized tone or beep.
Troubleshooting Troubleshooting Tips 1. Humming sound: Certain electrical products, such as computer terminals, emit a high frequency “humming” sound. This sound is not electrical interference—it represents an actual sound that the TruTrack is hearing. In almost all cases, this sound is not severe enough to interfere with leak detection. 2. Hissing noises: A certain amount of hiss is normal for ultrasonic detectors and you can expect to hear it.
Other Applications Other Applications 1. Electrical Arcing: A jump in electrical current or ARC makes a popping, frying, or buzzing noise in the ultrasonic range. The TruTrack can be used to locate electrical failures that cause a decline in power quality. Use the detector to test circuit breakers, buss bars, relays, corrosion in contacts, or poor insulation. WARNING Work with care and use common sense around electrical currents.
Optional Equipment Optional Sound Generator (16451) The Ultrasonic Sound Generator is used to detect leaks in enclosures that are not under pressure. The sound generator is placed inside a vessel, such as a walk-in freezer or refrigerated trailer. The sound generator emits a powerful 115 dB ultrasonic tone, which follows the empty passage a gas or liquid would travel to produce a leak. The tone can then be identified at the point of exit by using the TruTrack Ultrasonic Leak Detector.
Maintenance Care and Maintenance Clean the TruTrack Ultrasonic Leak Detector with mild soap (such as dish soap) and a damp cloth. Remove the battery and close the battery compartment door before cleaning. Do not allow water to enter the unit, especially in the front where the sensors are located. After cleaning, dry the unit with a paper towel. Restore the luster by applying an automotive vinyl cleaner with a clean cloth. Remove the battery if you plan to store the unit for an extended period of time.
Warranty No-Hassle Warranty Robinair vacuum pumps and test instruments are backed by the best coverage available—our No-Hassle warranty. If your Robinair product fails, simply return it to a Robinair distributor for an immediate over-thecounter warranty (with proof of purchase) to your local dealer, and get a new unit. That’s it! No waiting. No complicated forms. No hassles.
Replacement Parts The following is a list of replacement parts and accessories for the unit. For ordering information, use the technical support telephone number listed on the back cover of this manual. Part No.
For help in servicing your TruTrack Ultrasonic Leak Detector, call our toll-free Technical Support Line: ☎ 1-800-822-5561 in the continental U.S. and Canada. In all other locations, call your local distributor. To help us serve you better, please be prepared to provide the model number, serial number, and date of purchase of the unit. NATIONWIDE NETWORK OF AUTHORIZED SERVICE CENTERS If your unit needs replacement parts, contact the service center in your area.
