High Noise Environments; Using The Contact Probe (If Equipped) - Inficon Whisper Manual De Operación

High Noise Environments

In noisy environments, it may be necessary to "tune out" unwanted signals from
other areas in close proximity to where you are scanning for leaks. Begin by
pushing the rubber extension probe over the nose piece. When the extension is
attached, Whisper's sensing angle is reduced, increasing the directional capability
and reducing the effects of the adjacent noise sources. This allows Whisper's
detection capabilities to become more directional. If you suspect the reading
originates from a source other than what you are scanning, point the probe toward
the suspected source (maybe a compressor, V-belt, discharging steam line, etc.)
and slowly decrease sensitivity until the alarm stops. Turn the probe back in the
direction of the suspected leak and continue to scan. This step may have to be
repeated as you move around to other locations in search of leaks. If the probe is
close to internal moving parts of equipment, and the alarm sounds, push the
rubber probe against the equipment housing. If the alarm still sounds, internal
friction of moving parts, and not a leak source, may be causing the alarm.

Using the Contact Probe (if equipped)

The optional metal contact probe offers additional capabilities when used with
Whisper. The contact probe can be a useful accessory in diagnosing machinery.
For best results, always use the headphones when using the contact probe to
enable the heterodyne feature.
To use the contact probe, twist the threaded end into Whisper's plastic nose piece
and turn Whisper On. Touch the end of the contact probe to bearing housings,
solenoids, pistons, and other mechanical equipment to allow the frequencies to
travel into Whisper's ultrasonic transducer. Adjust sensitivity as needed. Properly
functioning machinery sounds smooth and clear, while poorly functioning
machinery may make irregular or grinding noises. Over time you will learn to
recognize when machinery sounds to be in good working order or when it sounds
worn and in need of maintenance.
W A R N I N G
Do not place the contact probe in running machinery, fan cages,
drive belts, or other moving parts. Always use extreme caution
when using the contact probe around machinery.
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