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Trisonic™ Scanning Module
Trisonic Scanning Module
This module is utilized to receive air-borne ultrasound such as the ultrasounds emitted by pressure leaks
and electrical discharges. There are three prongs at the rear of the module. For placement, align the
prongs with the three corresponding jacks in the front end of
the metered pistol housing and plug in.The
Trisonic
TM
Scanning Module has a phased array of three piezoelectric transducers to pick up the air-borne
ultrasound. This phased array focuses the ultrasound on one "hot spot" for directionality and effectively
intensifies the signal so that minute ultrasonic emissions may be detected.
To use the Trisonic Scanning Module:
1. Plug in to front end.
2. Select the LOG position on the meter selection dial.
3. For general use position the frequency selection dial to the "fixed-band" mode.
4. Start with the sensitivity selection dial at maximum (10).
5. Start to scan the test area. a. The method of air borne detection is to go from the "gross to the
fine". If there is too much ultrasound in the area, reduce the sensitivity, place the rubber focusing
probe (described below) over the scanning module and proceed to follow the test sound to its'
loudest point constantly reducing the sensitivity and following the meter.
Rubber Focusing Probe
The Rubber Focusing Probe is a cone-shaped rubber shield. It is used to block out stray ultrasound and to
assist in narrowing the field of reception of the Trisonic-Scanning Module. To use, simply slip it over the
front of the scanning module or the contact module.
NOTE:
To prevent damage to the module plugs, always remove the module BEFORE attaching and
removing the Rubber focusing Probe.
