Triplett Fox 2 – PN: 3382 - Manual (Page 20)

20
2’s visual signal strength LED aids in finding the tracer tone.
The HOUND 2’s LED lights more brightly as the HOUND 2
nears a signal source. Unfortunately, the HOUND 2, and most
other receivers, cannot differentiate between a 60Hz Noise
source and the actual tracer tone. The FOX and most other
tone generators generate a continuous or warble tracer tone.
Unfortunately, the LED indicator on the HOUND 2, and most
other receivers, cannot tell the difference between such tones
and 60Hz Noise. Both signals cause the LED to light con-
tinuously. Consequently, when the user is unable to hear the
speaker, he is not certain whether the LED is indicating 60Hz
Noise or actual tracer tone. In addition to a continuous tone
and a warble tone, the FOX 2 can generate a Pulse tone.
Instead of simply lighting the LED on the HOUND 2, the Pulse
tone causes the LED to flash, helping differentiate the actual
tone from 60Hz Noise (which causes the LED to light con-
tinuously).
Wire Tracing, Identification, and Open Faults:
The uses of the FOX 2 Tracer Tone mode can usually be di-
vided into three categories....... tracing, identification, and
locating open faults.
Wire Tracing Methods:
There are two basic wire tracing methods........... “floating”
and “grounded”.
In the floating method (also called Line to Line), the tracer
tone is applied to two wires (a pair) in the cable or wire har-
ness to be tested. (see Figure 3) For example, the FOX 2’s
red clip is connect to one wire and the green clip is con-