Klein Tools VDV500-051 Manuel D'instructions page 6

ENGLISH
6. Adjust the volume to a comfortable level using the up and down
buttons. If the signal is very loud when near the cable, the volume
may need to be reduced to keep from overloading. When the
amplifier is overloaded, small increases or decreases in the signal at
the tip cannot be heard.
To use the green detect LED on a run of cable, start at the tone
7.
generator end of the cable and hold the probe at the distance you
want to detect the tone. Adjust the volume until the detect LED just
turns on or off. This sets the sensitivity of the detect LED.
Hold the tip of the PROBEplus near the cables to be identified.
8.
The signal will be loudest on the wire or cable with the generator
attached to it. Separating the wires or cables may help in identifying
the correct one. The probe contacting a terminal or bare wire
carrying the tone will be substantially louder.
Note: The tone LED of the TONEcube and the power-on LED of the
PROBEplus flash rapidly if the battery is low. See Battery
Replacement section for new battery installation.
On the TONEcube, The NRM and REV LEDs will be on at low
intensity with test leads disconnected to visually show the output
tone cadence.
There are several ways to connect the generator to the cable to be traced.
The connection method can greatly change the signal strength detected
by the tone probe or limit coupling to surrounding wires and cables. Too
much signal strength can make it difficult to determine the exact cable or
wire carrying tone.
• Single generator lead: Often just one lead of the TONEcube needs to be
connected to the wire or terminal. This is best for tracing along a cable or
wire run including wires behind dry wall. Connect to the shield of a coaxial
cable, not the center lead.
• Both generator leads connected to a cable: Connecting both generator leads
to wires in a cable reduces the radiated signal, especially when connected to
both wires of a twisted pair, due to signal field cancellation. This can be useful
for finding the desired wire or cable in a dense wiring environment such as a
patch panel or a telephone punch-down block. The wires carrying tone must
be very close to the probe tip to be detected. Place the tip in a patch panel
connector or touch a terminal on a block to find the signal.
• Both generator leads, one to ground: With one lead connected to the
wire or cable to trace and the other connected to earth ground, the signal
strength is greatly enhanced. Try a single lead connection first for tracing
along a cable because the ground connection method can yield too much
signal causing poor discrimination between cables or wires.
• RJ plug connection: The RJ plug can be directly connected to a phone jack
and should be the same connection as both generator leads connected to a
pair in a cable, usually line 1 or the center two pins of the jack.
Note: The wire to be traced cannot be at earth or safety ground potential.
The generator signal is shorted out in this instance.
When both generator leads are connected to a pair, shorting the two leads
together will cause the tone signal to be shorted out. If the tone probe is on
and nearby, you should hear the tone being lost while the pair is shorted,
verifying the correct pair has been found.
If the CONT-STAT switch is in CONT (continuity) position, the red LED will
light on the generator when the cable is shorted. This could tell an assistant
that the pair was found and to move on to the next pair.
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CONNECTION VARIATIONS
CORRECT PAIR VERIFICATION