Description
The SKF Inspector 400 Ultrasonic Probe (CMIN 400-K) senses high frequency sounds produced by operating equipment, leaks and electrical dis- charges. It electronically translates these signals by a heterodyning process, making them audible, so that a user can hear these sounds through a headset and see them as intensity increments on a meter.
As any gas (air, oxygen, nitrogen, etc.) passes through a leak orifice, it generates a turbulent flow with detectable high frequency components. By scanning the test area with the SKF Inspector 400 Ultrasonic Probe, a leak can be heard through the headset as a rushing sound or noted on the meter bar graph indicator. The closer the instrument is to the leak, the louder the rushing sound and the higher the meter reading. Should ambient noise be a problem, a rubber focusing probe may be used to narrow the instrument’s reception field and to shield it from conflicting ultra sounds.
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