ULD Ultrasonic Leak Detector Kit

The ULD-1 Ultrasonic Leak Detector is designed for pinpointing air leakages, especially in noisy locations, where the leak is not audible by ear.

The noise, which is created by air escaping from a leak, is detected by an ultrasonic receiver and converted to an audible sound and is displayed with an optical indication on the instrument.

It is also useful for locating leaks in compressed-air systems where air escapes at frequency which humans cannot hear. For example:

• Pneumatic systems
• Vacuum equipment
• Valves and fittings
• Steam pipes
• Oxygen sockets in hospitals
• Air conditioning systems in automotive vehicles
• Door and window seals of cars, pressurized containers, ships, trucks, buses, trains, airplanes etc.

For leakages with more than Ø 0.1 mm. Pressure of 1 bar is recommended. For leakages with a diameter smaller than 0.1 mm, a higher pressure is recommended (e. g. 8 bar)

Operation:
Switch the leak-detect on by turning the potentiometer “Volume” clockwise until a light noise can be heard. The first yellow LED is on.
Move the unit with the sensor into the direction of the tubes or pipes which are to be controlled. The leakage is located when the sound has increased and the red LED`s are illuminated.

For difficult to reach locations we offer a longer goose neck probe as well as a parabolic dish with integrated ultrasonic sensor and laser pointer.
The integrated laser pointer makes it easy to trace leaks over distances from 20m to more than 100m for bigger leaks.
The parabolic dish is made of transparent plastic, so that the leaks are easily visible. All incoming ultrasonic waves are reflected from the dish and focused at the ultrasonic receiver. Noise is ignored.

1. Attach probe to LDT.
2. Plug in and put on the headphones.
3. Press power button.
4. Adjust volume until you hear some hissing in the head phones. The first yellow LED will light up.
5. Direct the sensor to the area of equipment that needs to be checked. These areas are normally tubes, fittings and screws. For longer distances, the laserpointer inside the parabolic dish is a helpful direction finder.
6. A leak has been detected if the audio signal increases and the LED signal changes into the red area.