Alpine VOLUME 1.3 instruction manual Scanning Module, Contact Stethoscope Module

Scanning Module

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2.SCANNING MODULE

This module is utilized to receive air-borne ultrasound such as the ultrasounds emitted by pressure leaks and electrical discharges. To use, make sure it is plugged in to the front end of the metered pistol housing by aligning the plug with the receptical and inserting it firmly.

To use the Scanning Module: 1. Plug in to front end.

2. Start with the sensitivity selection dial at maximum (8).

3. 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. If it is difficult to locate the sound due to a high intensity signal, keep reducing the sensitivity and following the meter to the loudest point.

RUBBER FOCUSING PROBE: The Rubber Focusing Probe is a circular shaped rubber shield. It is used to block out stray ultrasound and to assist in narrowing the field of reception of the Scanning Module. It also increases the sensitivity. To use, simply slip it over the front of the scanning module or the contact module. NOTE: To prevent damage to the module plug, always remove the module BEFORE attaching and removing the Rubber Focusing Probe.

3.CONTACT (STETHOSCOPE) MODULE

This is the module with the metal rod. This rod is utilized as a "wave-guide" that is sensitive to ultrasound generated internally such as within a pipe, bearing housing, steam trap or wall. Once stimulated by ultrasound, it transfers the signal to a piezoelectric transducer located directly in the module housing.

To use the Stethoscope Module:

1.Align the pin located at the rear of the module with the jack in the front end of the Metered Pistol Housing and plug in firmly.

2.Touch test area.

3.As with the scanning module, go from the "gross" to the "fine". Start a maximum sensitivity on the Sensitivity Selection Dial and proceed to reduce the sensitivity until a satisfactory sound and meter level is

achieved.

Contact Module