29
LONG RANGE MODULE (LRM)
This module plugs into the front end of the instrument.
Align the pins located at the rear of the module with the four jacks in the front end of the
Metered Pistol Housing (MPH) and plug in.
For general use position the frequency selection to 40 kHz.
Start to scan the test area.
STETHOSCOPE MODULE
Align the pins located at the rear of the module with the four jacks in the front end of
the Metered Pistol Housing (MPH) and plug in.
Touch test area.
As with the SCANNING MODULE, go from the "gross" to the "fine". Start at maximum sensitivity
(S=70) on the Sensitivity Selection dial and proceed to reduce the sensitivity until a satisfactory
sound level is achieved. At times, it may be necessary to utilize the STETHOSCOPE MODULE with
the sensitivity level at or near maximum. Occasionally when in this situation stray ultrasound may
interfere with clear reception and be confusing. If this occurs, place the RUBBER FOCUSING
PROBE over the Stethoscope probe to insulate against the stray ultrasound.
STETHOSCOPE EXTENSION KIT
Remove the Stethoscope Module from the Metered Pistol Housing.
Unscrew the aluminum rod in the Stethoscope Module.
Match the Stethoscope rod thread to the rod that matches. The "base piece" rod will
have the same thread.
Screw the Base Piece into the Stethoscope Module.
If all 31" (78.7 cm) are to be utilized, locate the middle piece. (This is the rod with a
female fitting at one end) and screw this piece into the base piece.
Screw third "end piece" into middle piece.
If a shorter length is desired, omit step 5 and screw "end piece" into "base piece".
