CLAS AC 5028 Manual Download Page 6

INTRODUCTION

DESCRIPTION

APPLICATIONS

 AC  5028 

 ELECTRONIC STETHOSCOPE LEAK DETECTOR 

Moving parts, liquids and gases cause turbulence or friction.

This turbulence or friction can then produces high frequency ultrasonic waves whose frequencies are normally 

higher than 20kHz and are far above the range of human hearing. The ultrasonic waves can travel in air and their 

intensity will attenuate rapidly as their propagation distance increases.

Ultrasonic waves are highly directional, this directional aspect of ultrasonic waves allows one to isolate a suspect 

signature sound from other background noises and detect its exact location.

This tool operates on the principle mentioned above, it uses advanced ultrasonic sensing technology and converts 

inaudible ultrasonic sound into an audible sound which bears a close likeness to the natural incoming sample; for 

example, a gas leak sounds like a "hiss" and a defective bearing sounds like a "clicking or chatter".

Since this tool is tuned to listen to the ultrasonic range, it is unaffected by everyday sounds such as wind, voices, 

and traffi c.

This AC 5028 is easy to carry and operate, and its detection result is accurate and reliable. It is very useful in 

preventive maintenance, trouble shooting, quality control and diagnostics in the automotive, industrial,

manufacturing and process industries.

This tool is a very useful diagnostic test tool which can reduce downtime and maintenance related costs of the tested 

equipments. Through the detection of ultrasonic sound, this tool can be used to inspect and check such items as 

ignition systems, vacuum problems, air brake systems, bearings, gear trains, cam and tappet assemblies, internal 

combustion engine valving and piston blow-by, gaseous piping and ducting, seals in refrigerated van bodies, air 

ducts, hydraulic systems, Freon leaks, and many other components.

This tool consists of an ultrasound receiver, a tone generator, an air probe, a contact probe and a headphone.

The receiver is sensitive only to ultrasonic energy in the frequency range of 36000 to 44000Hz. The energy is 

amplifi ed by internal circuitry and converted to audible sounds (available through the headphone) and an intensity 

reading on the red LED display.

The tone generator is used with the ultrasound receiver to check for faulty seals in nonpressurized enclosures, such 

as automotive cabin windows/doors/roofs, etc.

AC 5028 can be used to effi ciently investigate the fi ve major areas of repair and preventive maintenance in the 

automotive, industrial, and etc.

1. Air/Vacuum Leaks

Both vacuum and compressed air leaks from a hole down to 0.127mm create an energy packet or wave front, 

which can result in an ultrasonic emission with a differential of 1 psi.

2. Gas and Liquid Turbulence

Turbulence associated with steam trap and internal valve leaks, cavitation, and blockages in liquid and air/gas 

lines.

Summary of Contents for AC 5028

Page 1: ...clas equipements com STETHOSCOPE ELECTRONIQUE DETECTEUR DE FUITES ELECTRONIC STETHOSCOPE LEAK DETECTOR AC 5028...

Page 2: ...r duire les co ts li s aux temps d arr t et la maintenance des quipements test s Par la d tection des ultrasons cet outil peut tre utilis pour inspecter et v rifier des pi ces telles que le syst me de...

Page 3: ...r de localiser pr cis ment une source stable d missionsd ultrasonslorsqu ilrep reunefuite d air ou de vide ou en utilisant le G n rateur de tonalit L intensit des ultrasons indiqu s sur l affichage LE...

Page 4: ...us portez le casque 4 Ne jamais utiliser la sonde d air ou de contact comme levier ou autre utilisation non pr vue 5 Ne pas utiliser la sonde de contact pour diagnostiquer un probl me lectrique ou tou...

Page 5: ...u r cepteur La sonde air est plus adapt e pour d tecter les ultrasons mis par une fuite de pression ou un Corona lectrique La sonde de contact est plus adapt e pour d tecter les ultrasons g n r s l in...

Page 6: ...industries This tool is a very useful diagnostic test tool which can reduce downtime and maintenance related costs of the tested equipments Through the detection of ultrasonic sound this tool can be u...

Page 7: ...c sound when locating a gaseous or vacuum leak or using the Tone Generator The ultrasonic intensity indicated on the LED display will increase when you get closer to the location of the leak noise sou...

Page 8: ...air or contact probe as a lever pry bar or for other unintended applications 5 Do not use the contact probe to diagnose electrical problems or touch it to any live conductor Basic Operation Procedure...

Page 9: ...situation use the headphone to locate the leak as described above Using Air or Contact Probe According to the type of inspection use the air or contact probe to optimize the response of the Reveiver T...

Page 10: ...NOTES...

Page 11: ...NOTES...

Page 12: ...de pi ces contactez le revendeur En cas de probl me veuillez contacter le technicien de votre distributeur agr If you need components or parts please contact the reseller In case of problems please co...

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