RobinAir TruTrack Ultrasonic Leak Detector 16455 User's Manual
Contents
1. gases are present 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 Always start at full sensitivity Gradually reduce the sensitivity to reduce the effect of background noise if necessary 4 Hold the instrument as close to the suspected area as possible Check around the fittings and piping using a zigzag motion Cover all suspected areas 5 Watch the LED window If a leak is detected an increase displays in this window You also hear a rushing sound coming through the headphones The sound becomes more intense and the meter reading increases as the instrument is placed closer to the leak NOTE If there is noise in the area and the display is at its full sensitivity reduce the degree of sensitivity until the lights disappear The display reading is only for relative measurements Observing two lights instead of ten can mean two things 1 Either you are too far from a suspected leak or 2 the leak is smaller than the one that produces ten lights Use the sound intensity you hear in the headset and the varyin2. and pressure leaks of any refrigerant 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 non invasive 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 ina 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 turbulent 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 Theory of Operation The theory o
3. 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 However if it is so loud that you cannot hear anything else investigate the true cause of the hiss 3 The signal in the head set cuts in and out There are two reasons this problem may occur 1 a low battery or 2 a bad headset connector 4 Not sure the unit is working Use this test Can the unit hear the blink of your eyes If it can this unit is probably working well Remember that the leak you are trying to find may not be turbulent See Calibration if you further suspect a problem 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 A WARNING Rd Work with care and use common sense around electrical currents Use the plastic wave guide to help you determine where currents are located to prevent personal injury keep
4. Operating Manual Model 16455 TruTrack Ultrasonic Leak Detector Table of Contents Introduction sank e 905 se a iaa Gid 2 Descriptio lt a s e a ga ee sitos a ES 2 Theory of Operation ses akkar ee seg ew ER eG 3 Operation f Unit 6 445 064 6644 k ae boa e a 4 4 4 TSN USE aa onago a epog e a aea A e 5 A Note About Sensitivity 2 2 ar a r 6 The Contact Probe aooaa 64 542 6 B ckgro nd NoiSe ss sos 9 opa fee a e ad 7 Reducing Background Noise Interference 7 Troubleshooting Tips 2 ooa a 244 e Fe de 8 Other Applications 2202200 e ed 9 Electrical ACINO a s gt pro area E A 9 Ductwork as e Rw ke FE a Ena r a 9 Pneumatics and Hydraulics 9 Leaks Behind Walls or Under Insulation 9 Optional Sound Generator 10 Maintenance a 11 Battery Installation 24 49 sed 4 04 45 ede ede 11 Calibration s sos soroa a ace e kr ark BEG Gad 11 Waifanty a see a ee E eee oa 12 Replacement Parts aoao a e o ees 13 A WARNING A Contact with gases may cause personal A injury To prevent injury wear protective equipment including safety goggles 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
5. Solutions LLC
6. a safe distance from the electrical currents 2 Ductwork Leaking ducts can be a significant source of energy loss Use TruTrack to identify the sound of leaking air from a pressurized duct system 3 Pneumatics and Hydraulics Leaks are quite common in pneumatic systems controls hoses tools fittings Listen for the rushing sound of the leak 4 Leaks Behind Walls or Under Insulation This type of leak is difficult to find by any method drywall and insulation drastically reduce the amount of sound present on the opposite side Although TruTrack was not designed to find this type of leak it has been somewhat successful finding large leaks in these situations 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 The sound generator has a selectable output Constant tone is used in most situations while burst tone is more easily identified in loud industrial environments Other sound generator applications include 1 locating roof and window leaks as well as 2 locating air water leaks in automobile windsh
7. f 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 If a straight piece of tubing is connected to a gas supply and left free to exhaust into the atmosphere 1t will not generate any sound if the volume of gas moving through it is too gentle for turbulence to take place Normally at the leak site there will be holes and or cracks that are jagged and have odd internal chambers Fluids or gases escaping through openings like this are forced into turbulence random circular like motions The intensity of sound generated at a leak is a complex combination of the viscosity temperature speed the fluid is moving Raynolds number pressure differential across the leak and physical dimensions and characteristics of the crack or hole Because of these variables it is possible for a smaller leak to generate more sound than a larger one A WARNING Ultrasonic detectors do not indicate a leak if there is no turbulent flow producing MN soundwaves If you suspect a toxic gas natural gas or other combustible gas leak but do not detect it with the TruTrack Ultrasonic Leak Detector DO NOT ASSUME that a leak does not exist To prevent personal injury use another method of verification to ensure no dangerous
8. g number of lights to guide you toward the leak point Reduce the sensitivity as you approach to verify you are on the right path 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 If the system permits spray distilled water on the suspect area Before the water runs off scan the area Water sprayed on a pressurized leak can also increase the amount of sound created 4 When searching for vacuum leaks remember that the majority of the sound created by the leak is internal If the system seals permit pressurize the system with dry nitrogen in order to increase the sound of the leak 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 atmos
9. ields sunroofs doors etc 10 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 Battery Installation 1 Turn the unit upside down so the controls are facing the floor and the sensor is facing away from your body 2 Locate the sliding battery door on the back of the unit at the opposite end from the sensors 3 Apply light pressure to the center of the battery door and slide it toward you exposing the battery compartment 4 Install a fresh 9 volt battery using the and indicators which are printed on the label for positioning the battery Calibration TruTrack Ultrasonic Leak Detectors are designed to minimize the need for regular calibrations If there is a need to know for sure that the detector is consistent with the manufacturer s specifications or if you suspect a problem Robinair will perform the calibration at a fixed cost Call 1 800 822 5561 for current calibration costs For service and repairs contact Robinair 655 Eisenhower Drive Owatonna MN 55060 Pho
10. ne 1 800 822 5561 Fax 1 800 822 7805 11 E 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 the counter warranty with proof of purchase to your local dealer and get a new unit That s it No waiting No complicated forms No hassles All authorized Robinair wholesalers can provide you with a new identical piece of equipment in exchange for a malfunctioning one when you have proof of purchase and meet the conditions listed below Our liberal warranty coverage is further assurance that you made a smart choice when you picked Robinair Test Instruments The following conditions must be met for an over the counter exchange A The date of claim does not exceed one year from the date of purchase by the user or 18 months from the wholesaler s original date of purchase as determined by the invoice B The instrument is mechanically defective and is returned with a full description of the defect Defects due to abuse mishandling or accidental damage are not covered C The instrument must have been purchased new D A copy of the sales receipt or other dated proof of purchase must accompany each returned item A credit for the full value of the product covered by this warranty is issued to the wholesaler s account when the defective unit i
11. ound 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 Leaks sound like a hiss or rushing sound while compressors chatter a rhymical mechanical pattern Fans generally do not produce any wind noise that is detected by the TruTrack but the fan motor may produce a buzz or hum NOTE Mechanical vibrations sound very different from leak sounds Shake a set of keys then take a short quick breath through your nose Listening to both sounds through the detector provides a good example of how the direct translation process helps you distinguish the difference between the two signals Experiment by listening to other sounds made by your refrigerant systems You will soon be able to identify the sound of a leak Tips for Reducing Background Noise Interference 1 To make the reception of the TruTrack more directional place the flexible wave guide into the sensor port 2 Cup your hand around the end of the wave guide to help reduce background noise 3 Reduce the instrument s sensitivity to suppress the effect that background noises have on the display 4 If there is high turbulence within a pipe and you have trouble detecting the correct sounds shut down the system There will probably still be enough pressure to perform a leak test Troubleshooting Tips 1 Humming sound Certain
12. phere over a period of time The TruTrack Ultrasonic Leak Detector is the only detector that pinpoints a vacuum leak and also detects any pressurized gas leak in any system It is also more accurate for detecting larger leaks because its sensor does not become saturated with refrigerants or set off alarms due to refrigerant gases in the air The Contact Probe Accessory 16456 The TruTrack Ultrasonic Leak Detector detects sound that travels through solid materials as well as air The contact probe accessory is used to detect sounds that are internally generated Such sounds include abnormal flow in piping leaks through bad valve seats and steam trap leaks Other applications include the detection of friction lack of lubrication and worn bearings motors and gears The probe physically converts sound within a solid to an airborne frequency Once airborne the signal is concentrated and projected into the sensor of the TruTrack Ultrasonic Leak Detector Using the Contact Probe 1 Unscrew the existing nosepiece and screw on the nosepiece containing the contact probe 2 Place the tip of the probe onto the item being tested with just enough force to hold it in place 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 s
13. s received at our factory in Owatonna Minnesota Send all over the counter exchange units with supporting documentation to the attention of Service Repair 12 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 Part Name 16451 Optional Sound Generator 16452 Replacement Tube 16456 Contact Probe 16458 Headset 16455 TruTrack Ultrasonic Leak Detector 13 For help in servicing your TruTrack Ultrasonic Leak Detector call our toll free Technical Support Line Ty 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 num ber 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 For help in locating a service center call the toll free technical support line Due to ongoing product improvements we reserve the right to change design specifications and materials without notice 655 Eisenhower Drive FIOBINAIR Owatonna MN 55060 USA Technical Services 1 800 822 5561 Fax 1 866 259 1241 Customer Service 1 800 533 6127 Fax 1 800 322 2890 www robinair com 525521 Rev C March 28 2014 O Bosch Automotive Service
Download Pdf Manuals
Related Search