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Compressed Air Leak Detection System - FLEX.US Ultrasonic Leak Detector
The FLEX.US Ultrasonic Leak Detector is a hand held, high quality compressed air leak detection system that has all the features necessary for flexible use in finding costly air leaks.
The FLEX.US Ultrasonic Leak Detector kit comes with the FLEX.US Ultrasonic Leak Detector, carrying case and manual and uses two AA alkaline batteries (included). The FLEX.US Ultrasonic Leak Detector is a complete kit, the high quality flexible sensor is mounted on the end of a flexible steel pipe so the ultrasonic sound sensor can access hard to reach areas. The unit converts the ultrasonic noise of a leak into a sound humans can hear (hissing sound) not just some beeping sound or LED display that may not distinguish a leak sound from other phenomenon.
The headset has excellent noise attenuation for use in the noisiest environments.
A rugged carrying case protects the FLEX.US Ultrasonic Leak Detector when not in use.
The FLEX.US Ultrasonic Leak Detector is a solid tool built to last, it is easy to use and will provide many years of service.
FLEX.US Ultrasonic Leak Detector - How It Works
Ultrasound is beyond the human hearing capacity. Most humans hear frequencies from 2 Hz to 20 kHz. Ultrasonic sound is beyond this range between 20 kHz to 100 kHz. The FLEX.US Ultrasonic Leak Detector converts the ultrasonic sound to an audible range for humans. Compressed air leaks generate this range of ultrasonic sound "noise" that the unit picks up.
Why The FLEX.US Ultrasonic Leak Detector Does The Job
The better the system, the more leaks you find and the more money you save. Always be aware of cheap ultrasonic leak detectors that just may not do the job. Ours does the job because of the following:
FIRST: Look at the headphones. If they are an open Walkman style, it will be useless in a noisy plant because they offer absolutely NO protection from the ambient noise which can be at high levels! (After all, why else would you need an ultrasonic lead detector!). So how can you hear the leak in the headphone without protection from the ambient audible noise in the plant? Our headphones completely cover the ear providing 130dB hearing protection. Some competitive units would not be useable in a typical factory where hearing protection is mandatory because the inspector would have to insert ear plugs in his ears. Our headphones don't require this.
SECOND: Look at frequency range. Our frequency is centered at 38.4 kHz with an open window of +/- 2kHz. By having a bandwidth this narrow we are able to eliminate other sources of ultrasonic parasite noise. It is absolutely critical that you amplify just this narrow single harmonic band of sound. Some detectors amplify EVERY frequency from 20kHz up to 100kHz. That's because the manufacturer did not include any low pass filters. This also affects the output signal in the headphones. It also affects the directionality of the device. At low frequency it is much more difficult to know where the sound is coming from because the wavelength is larger and more reflective.
THIRD: Extension tubes. For accessing tight areas some firms suggest using a hollow tube (tubular extension) with their system. Ultrasound will not travel well into this tube so the equipment will be less sensitive in hard to reach areas. If the tube is 6" long for example, that means the sensor is always a minimum of 6" away from the source. The Nex Flow system sensor is at the end of the flexible extension so the sensor is always directly exposed to the leak making our equipment much more sensitive. If more sensitive of course you will more easily detect the leak (one you may not even find it with another system.)