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Amprobe ULD-420 Ultrasonic Leak Detector Transmitter Kit
Amprobe ULD-420 Ultrasonic Leak Detector Transmitter Kit

Amprobe ULD-420 Ultrasonic Leak Detector Transmitter Kit

Part Number: 5117474
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The Amprobe ULD-420 is an ultrasonic leak detector kit that allows a service technician to quickly and easily locate air leaks in the most noisy and challenging environments. Combining the ULD-420 advanced filtering technology with its wide ultrasonic frequency range of 20 kHz to 90 kHz provides the most comprehensive leak detection for a wide variety of application such as critical air systems, steam and gas lines, ventilation ducts as well as braking systems on trains and trucks.
Retail Price:$1,499.99
On Sale: $1,312.49
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Amprobe ULD-420 Ultrasonic Leak Detector Transmitter Kit

The Amprobe ULD-420 is an ultrasonic leak detector kit that allows a service technician to quickly and easily locate air leaks in the most noisy and challenging environments. Combining the ULD-420 advanced filtering technology with its wide ultrasonic frequency range of 20 kHz to 90 kHz provides the most comprehensive leak detection for a wide variety of application such as critical air systems, pneumatic valves, steam and gas lines, ventilation ducts as well as braking systems on trains and trucks. The ULD-420 kit includes the receiver, transmitter, headphones, and additional accessories.  Amprobe model ULD-410 kit is just the receiver no transmitter.

Key Features

  • 20 kHz to 90 kHz frequency range: optimal range for detecting a variety of leaks
  • 3 filters to remove main noise frequencies in noisy environments
  • 2.5” LCD display with bar graph
  • Adjustable Receiver sensitivity
  • Three Transmitter signal strength for accurate leak pinpointing
  • Quality headphones to help identify the source of the leak
  • Parabola accessory directs the ultrasound towards the sensor
  • Detachable Tubular Extension provides additional reach in hard to reach areas

Overview

Noise is always generated when pressurized systems leak. Ultrasonic leak detectors detect the ultrasonic sound of a leak. Large leaks emit a hissing sound that is usually easy to hear from several feet away. However, smaller leaks also emit sound, but the frequency is too high for our ears to detect it. The ULD-420 Ultrasonic Leak Detector Receiver ULD-400-R detects the ultrasonic frequency sound and converts it into an audible range helping you to pinpoint the source where the leak, vibration or discharge comes from.

The ULD-420 Ultrasonic Leak Detector includes the receiver unit which shows the strength of the leak with a bar graph on the large 2.5" LCD screen and identifies the source of the leak when listening to the converted audible sound transmitted through the headphones.


This Ultrasonic Leak Detector Kit also includes the ULD-400-T transmitter unit to generate the ultrasonic signal when the pressure is not sufficient enough to detect or verify a leak with the receiver alone. When a leak is not pressurized sufficiently, it is not emitting enough ultrasonic sound for the Receiver to detect it. In these circumstances, use the Transmitter to emit the ultrasonic sound readable by the receiver. The Transmitter is programmed with three signal levels for precisely locating leaks.


The Transmitter can be used to find air, water or gas leaks in:
• Automobile windshields and windows
• Fluids and gas tanks
• Building windows, doors or roofs
• Refrigerant pipelines
• HVAC vents

Compressed gas is so extensively used its often regarded as the fourth utility, after electricity, natural gas, and water. Although compressed air is safer, more flexible to use, and the equipment using it lighter weight, it is more expensive than electricity. Air and Gas leaks represent a significant source of wasted energy in an industrial environment. So without regular leak inspections, industries and facilities using compressed air or gas could be losing hefty amount of money through the loss of energy. So finding and fixing any leaks is important to improve energy efficiency as well as saving money.

Locating leaks in noisy environments

Running machinery, motion sensors or other equipment might generate strong ultrasonic noise in some situations. These sounds will cause the receiver to read the maximum signal strength on the display regardless of the sensitivity settings and make it unusable for detecting leaks. However, the ULD-420 receiver is equipped with a Filter function to deal with these kinds of situations. Simply pressing the Filter button and the receiver will automatically detect up to three main noise frequencies and filter them out.

Pinpointing leaks visually and audibly

The ULD-420 bar graph on the receiver's large LCD screen will indicate proximity to the source of the leak when scanning a target area with the Receiver’s microphone sensor. In addition, when you plug the headphones into the receiver you will hear the leak to verify its source. The specific sound quality of each type of emissions is heard in the headphones while the intensity of the signal is observed on the display panel. For example, air leaks will produce more of a hissing sound while electrical discharge manifests in a ticking sound.

What’s in the Box?

  • ULD-400-R Receiver
  • ULD-400-T Transmitter
  • Headphones
  • Earbud (for hard hat use)
  • PB-1 Power Parabola
  • TEA-1 Flexible Tubing Adapter
  • TE-1 Tubular Extension
  • CC-ULD-400 Hard Carrying Case
  • 4 X AA Batteries (Receiver)
  • 2 X AAA Batteries (Transmitter)
  • User manual
  • One year warranty from date of purchase
Related Products:
Amprobe ULD-410 receiver only - does not include the transmitter.

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