Ultrasonic Detector

(formerly marketed as the

Ultraphonic Detector)

Automotive, Rolling Stock and Fleet Vehicle Maintenance Applications

Brake Systems:

An Ultrasonic Detector (formerly marketed as the Ultraphonic Detector) can pinpoint leaks quickly in both vacuum and air brake systems. In many cases, leaks can be detected from a considerable distance. After building up full pressure, a casual sweep of the vehicle from one end to the other using the receiver can often locate the leak. Use of the headphones will also reduce noise interference from the shop. If the first sweep does not locate the leak, trace out the entire air system piping at close range (1 -2 feet) with the receiver. Once the general area of the leak has been determined, the receiver with probe is used to pinpoint the exact location of the leak. Tip: be sure that during the entire search the pressure is maintained in the brake system. If no leaks are discovered, check the shutter-stat, air horn, windshield wipers and other air actuated equipment. Leaks in these accessories can produce abnormal gauge drop.

Tires:

For heavy trucks, many technicians check tires for adequate pressure by striking the tire with a hammer and noting the rebound and the sound. This procedure does not locate leaks. A sweep with the Ultrasonic receiver will locate minute leaks. The receiver normally finds leaks of sufficient magnitude before they cause on-highway downtime later. The detection of only one leak may, very possibly, save the cost of the original investment in equipment. Savings realized by preventing the loss of a tire (on duals, a second tire) possible damage to driveline components and road service costs to replace the tire can be significant.

Leaking Valves:

Leaking intake valves can be checked for defects by using the Ultrasonic receiver and headphones while the engine is running. All valves should emit a sound in a very close meter and sound pattern when the probe is placed on the intake manifold opposite the intake port. A suspected valve or valves can then be positively checked with the engine off, by bringing that particular cylinder to full compression and placing the probe on the valve stem. The "hiss" of escaping gas across the valve seat will be distinctly audible on the leaking valve. Exhaust valves can be checked by using the same procedure, but the signal intensity will be much greater.

Cooling Systems:

The presence of air in the cooling system can cause hot spots resulting in burned liners and heads in a very short time. Since all cooling systems are under pressure, coolant must go out for air to get in. Aeration detection equipment gives the signal that air is in the system, but not the location of the leak. Using the Ultrasonic receiver in suspect areas such as the head gasket and around the water pump and injectors will usually detect the exact source of the leak. The "bubbling" of air in a cooling system is very noisy and usually enables the exact determination of the problem. Being able to single out a certain unsuspected trouble point can save unnecessary labor. All such tests should be conducted while the engine is idling. Internal leaks may also be pinpointed immediately after shutoff when internal pressure is at its highest point. Headphones should be used for this test.

Exhaust Systems:

With the engine idling, pulsation in the exhaust system can be detected with the receiver. Any leak points normally give off a much louder and sharper sound. Headphones are essential for this procedure.

Wheel Bearings:

A ball or roller bearing that is in good condition and is adequately lubricated produces a soft "whirring" sound via headphones. Lack of lubrication introduces scraping sounds. Flat spots or nicks cause a grating, grinding or clicking noise, depending on the speed of rotation and the degree of damage. For the best results, the receiver probe should touch the spindle while spinning the wheel.

Drive Train Bearing and Gears:

Using the receiver with headphones, it is possible to determine which gear or bearing in a drive is faulty. This should be done by allowing the drive train to run with the wheels raised off the ground. The receiver and headphones are the search combination to discover the greatest noise generation.

Hydraulic Systems:

Partially blocked or bypassing valves in high pressure hydraulic systems can be extremely difficult and costly to locate with conventional methods. Since hydraulic systems employ a very high pressure, the intensity of the ultrasonic sound given off by an internal leak is extremely high and easily detected with the Ultrasonic receiver.

Electrical Systems:

Separations in high tension spark plug wire conductors can be quickly identified from the corona discharge "snapping" sound emitted. The same applies to arcing within electrical motors and accessories.

Body Weatherstripping, Seals, Fuel Tanks:

By placing the Ultrasonic transmitter inside a vehicle, fuel tank or other enclosure, leaks in weather stripping, seals or the structure itself can be easily located with the receiver. Extremely useful for inspecting fuel transporters and storage tanks.

Request more information for this product

About ETIP, Inc.

Press / Media
ETIP Store on ebay
ETIP Videos
About ETIP, Inc.
Freight / Shipping
Contact Us

We reserve the right to change product specifications at any time without notice and without obligation.

Veteran Owned
Small Business

Ultrasonic Detector (formerly marketed as the Ultraphonic Detector)

Automotive, Rolling Stock and Fleet Vehicle Maintenance Applications

Safety

Security

Maintenance

About ETIP, Inc.

Ultrasonic Detector

(formerly marketed as the

Ultraphonic Detector)