Guest Tip by Bob Dunn from I&E Central, Inc.

In some environments, reflected sounds can make it difficult to locate a leak.  If you are in a confined area (a smaller room, or beneath/inside a machine), the leak can seem to be almost anywhere.  A good solution is to adjust the sensitivity downward.  Ultrasonic sounds will reflect, but lose energy each time they reflect.  By reducing sensitivity, the reflected sounds drop into the background, allowing you to locate the actual source of the leak.

Note that SDT inspection tools have separate adjustments for sensitivity and headphone volume, so you can manage sensitivity without affecting your ability to hear!

Download our Find-and-Fix Leaks with Airborne Ultrasound Infographic!

by Ana Maria Delgado, CRL

Using ultrasound to locate compressed gas leaks is relatively easy, but it occasionally it can present some challenges. The reason ultrasound is so successful is that it is a high frequency, short wavelength signal that does not like to penetrate 2nd mediums. While performing compressed gas leak inspections, keep in mind that strong ultrasonic signals can bounce off most materials leading to false indications.
To overcome this challenge, turn your ultrasonic detector 180° and see if the signal is stronger coming from that direction.
Download Find-and-Fix Leaks Procedure


by Paul Klimuc CRL - SDT Ultrasound Solutions

Compressed air is one of the three highest cost utilities in use at your plant. It is also one of the least maintained in terms of system leaks. Leaks are expensive and wasteful, but most often ignored.

Finding and fixing leaks is an easy way to reduce energy costs but finding them is not easy because of background noise.

  1. Why we don’t find and fix air leaks?
    Leaks are often considered an unavoidable cost of business. Many of us simply don’t realize the high cost of compressed air leaks.
  2. Air leaks cost you real money
    Compressed air leaks are one of the leading expenses in the industrial world to this day. Leaks are a source of wasted energy, but they also contribute to other operating losses.
  3. How much air is being wasted?
    Air leaks are wasted energy. An industrial compressed air system loses up to 40% of its compressor’s output to leaks if left unchecked.
  4. The best way to find leaks
    SDT’s ultrasound technology provides you with the ability to check vast areas for air leaks quickly and effectively. The SDT270 hears high frequency sounds created by leaks, while ignoring low frequency plant noise.
  5. How to fix compressed air leaks
    Finding the leaks presents a solution to the problem. But only fixing the leaks nets cost and energy savings. Without a follow-up to ensure found leaks were actually fixed, leak detection is just another expense.
  6. Air leak prevention program
    Implementing an Air Leak Prevention Program into your facility is essential for energy and cost savings. Proactive leak detection and good organization will reduce leaks to 10% or less of system demand.

Download our Leak Surveyors Handbook

by Allan Rienstra - SDT Ultrasound Solutions

Compressed air represents one of the highest utility costs in industrial plants. It’s also one of the most misunderstood; which explains why leaks account for, on average, as much as 35-40% of total demand.
Leaks are often considered an unavoidable cost of business. Many of us simply don’t realize the high cost of compressed air leaks.
Add to that the fact that:

  • Leaks don’t present a visible threat to safety
  • Leaks don’t make a mess on the floor
  • They are invisible
  • We can’t hear them over the other noise in the plant
  • We don’t need permission to open a 1/4” air line and waste thousands of dollars per year

Remove our misconceptions about the high costs of leaks and we create a huge opportunity to save money, increase environment sustainability, and drove positive culture change.
Download the Leak Surveyors Handbook to learn more.

by Allan Rienstra - SDT Ultrasound Solutions