Tracer TP-9367 Marksman II AM12002 - Manual (Page 10)

10
HETERODYNE FEATURE
The Marksman II features heterodyne capability, which converts
the ultrasonic frequencies detected by the instrument to sounds
that can be heard by the human ear. This allows you to more
easily isolate the ultrasonic source.
Simply plug the included headphones into the jack on the right side
of the Marksman II to enable heterodyne capability. Dragging your
finger upwards/downwards on the sensitivity touch pad will increase/
decrease the volume of the headphones.
ULTRASONIC EMITTER
The ultrasonic emitter is used with the Marksman II to locate leaks
in walk-in coolers/freezers, wall and ceiling joints, around doors,
windows, body seals, rubber moldings, ducts, etc. The emitter
produces the precise frequency detected by the Marksman II. By
placing the emitter in a sealed area and scanning the exterior of this
area, any signal escaping from the sealed area will be indicated by
the Marksman II. A flaw in the seal can quickly and accurately
be pinpointed.
1. Turn on the emitter’s power switch. The LED will illuminate to
indicate it is operating.
2. Place the emitter into the area to be tested. Seal the area to be
tested completely.
3. Set the “Sensitivity” control of the Marksman II to maximum.
4. Scan the exterior area for the suspect leaks.
5. To pinpoint leaks, see General Information on pages 5-6.
6. When using the emitter with headphones plugged into the
Marksman II, the instrument will indicate ultrasonic disturbances
through a variable-pitch tone.