Operation Manual
Tone Generator & Amplifier Probe
IMPORTANCE: TONE GENERATOR AND PROBE UNITS MUST BE
INSTALLED 9V. BATTERIES BEFORE OPERATING
CAUTION: DO NOT CONNECT TONE GENERATOR UNIT TO
ACTIVE AC CIRCUIT OR HIGH DC EXCEEDING 110V
Amplifier Probe
Volume
control
Black clip Red clip
Audio jack
LED
Figure 1
ON/OFF button
Figure 2
Features
• The Amplifier Probe is designed to identify and trace wires or cables within
a group without damaging the insulation
• Works with any Tone Generator to idenlify wires.
• Volume control for increased sensitivity and adjustable to suit work
environment.
• Recessed ON/OFF button prevents battery drain.
• Power supply is in any 9V battery with a life of approximately 100 hours.
• Audio jack for headphone to operate in noisy environment.
• LED indicator for signal strength of tone receive
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Tone Generator
Black clip Red clip
Modular plug RJ11
3-position
toggle switch
LED
Figure 3
Features
• Red and black test leads are provided, and also a standard RJ11 modular
plug
• A 3-position toggle switch controls the modes of operation plus a 3-colored
LED Light Emitting Diode is provided for line polarity, continuity and
voltage testing.
• A tone selector switch, located inside the test set is provided for choosing
either a single solid tone or dual alternating tone.
Instructions
A) WIRES IDENTIFYING
1. SENDING TONE
• Switch Tone Generator to “TONE”
• Select A dual alternating tone or a single solid tone by slide switch
inside the tone generator.
• Connecting the tone generator to line pair
In working or terminated cables :
Connect red test lead to a wire and connect black test lead to earth
or equipment ground. (See figure 2)
In non-working or unterminated cables :
Connect one test lead to a wire and connect the other test lead to
another wire.
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2. TRACING
• Press the round on/off spring-loaded button of the amplifier probe.
The volume control switch can be adjusted to suit the environment.
Do not adjust volume with sound too high for better identifying
target wire from crosstalk wires .
• Touch the tip of the amplifier probe to the insulation of each suspect
conductor.
• Speaker will receive tone which will be loudest on the target wire.
• Alternative using LED by brightest LED indicate receive of tone from
the target wire
• Use LED in high Background noise should cancel Background
noise from LED. Cancelling done by first stop or not sending tone
then press probe amplifier button while its head tip close to tracing
area. Adjust slowly probe amplifier volume from highest sound
position decrease until LED off or very fade.
• In noisy environment, Headphone can be used by connect to audio
jack for hearing.
B) LINE TESTING BY TONE GENERATOR
IDENTIFYING TIP & RING (SWITCH TO “OFF”)
1. Connect the RED test lead to a wire and the BLACK lead to a another
wire of pair.
2. The LED will glow “GREEN” when you connect the RED test lead to
the RING SIDE.
3. The LED will glow “RED” when you connect the RED test lead to the
TIP SIDE.
IDENTIFYING LINE CONDITION (SWITCH TO “OFF”)
1. Connect both test leads to the pair (a test lead on a wire).
2. Observe the LED:
1. A BRIGHT “GREEN” or “RED” LED indicates a CLEAR line.
2. No lamp indicates a BUSY line.
3. A BLINKING LED indicates a RINGING line.
VERIFYING LINES (SWITCH TO “OFF” THEN “CONT”)
1. Dial the line to be verified.
2. While the line is ringing, connect both test leads to the pair (a test lead
on a wire)
3. In the “OFF” position, the indicator LED will blinking “GREEN” or “RED”
when the test leads are connected to the target pair.
4. Re-confirm by switch to “CONT”, that will terminate the call on the
target line.
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TESTING CONTINUITY(SWITCH TO “CONT”)
1. Connect the test leads to the pair (a test lead on a wire).
2. Shorting both wires at the other end of line
3. A bright “GREEN” LED indicates continuity of line is good. LED will not
work if the line resistance exceeds 10K Ohms
TESTING CONTINUITY USING TONE (SWITCH TO “TONE”)
1. Connect the test leads to the pair(a test lead on a wire).
2. Using a Telephone Test Set in monitor mode at the other end of line
3. Reception of clear tone is indicates continuity of line is good.
MODULAR TESTING
All above tests are available through the modular plug in stead of test leads
COAX TESTING
1. Connect red test lead to outer shield and black test lead to center
conductor
2. Or connect red test lead to outer shield and black test lead to ground
MAINTENANCE
The Tone Generator and amplifier probe is maintenance free except for
battery replacement. Below is the Instruction for Battery replacement
Probe Amplifier
Remove the screw from the battery compartment, replace
with new 9V battery and re-assemble screw DO NOT OVERTIGHTEN.
Tone Generator
Separate the case by remove the screw, replace with new
9V battery and re-assemble screw DO NOT OVERTIGHTEN.
Warranty
Warranty limited solely to repairing or replacement, Warranty will not cover
for unit that was defected by accidental, improper uses and one repaired by
other than manufacturer’s personnel.
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