Ultrasonic Leak Detector Compressed Air Leak Detector
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 US.FLEX Ultrasonic Leak Detector, carrying case
and manual and uses two AA alkaline batteries (included).
The US.FLEX 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 here (hissing sound) not ust 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.
rugged carrying case protects the US.FLEX Ultrasonic
Leak Detector when not in use.
The US.FLEX 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 US.FLEX 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.
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:
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.
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.)