Triplett Fox Jr. User manual

FOX JR. &
HOUND JR.
Instruction Manual
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . 1
2. FOX Jr Features . . . . . . . . . . . . . . . . . . . 2
3. HOUND Jr Features . . . . . . . . . . . . . . . . 2
4. Fox Jr Diagram . . . . . . . . . . . . . . . . . . . 3
5. Hound Jr Diagram . . . . . . . . . . . . . . . . . 4
6. Safety Warnings and Cautions . . . . . . . . 5
7. Specications . . . . . . . . . . . . . . . . . . . . 8
8. Getting Started . . . . . . . . . . . . . . . . . . . 11
9. Detailed Information . . . . . . . . . . . . . . . 14
10. Fox Jr. & Hound Jr. in Carrying Case . 30
11.Customer Support . . . . . . . . . . . 31
12. Warranty . . . . . . . . . . . . . . . . . . . . . . . 31
1. Introduction
The Triplett FOX Jr and HOUND Jr Wire Tracing Kit
consists of the FOX Jr Compact Toner, the Hound
Jr Compact Probe, and the convenient belt pouch
/ carrying case. These compact versions of the
popularTriplett FOX and HOUND series of products
oer less demanding users a portable low cost wire
tracing solution.
84-862 Rev C 8/12
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2. FOX Jr. Features
• Pocket-Sized with Pocket Clip
• Connects easily with alligator clips or
RJ-11 / RJ-45 combo plug
• Distinctive Warble tone is adjustable over
wide range
• 120VAC Line Cross Resistant
• Powered by one A23 Battery (included)
• 1 Year Warranty
3. HOUND Jr. Features
• Pocket-Sized with Pocket Clip
• Small and Streamlined to get into tight places
• Adjustable Sensitivity / Volume Control
• Visual Signal Strength Indicator
• Contains Hi-Gain Hi-Impedance Amplier
• Non-Conductive Probe Tip
• Detects FOX Jr Signal from up to 12" away
• Earphone Jack
• Power Beeper Reminder
• Powered by one A23 Battery (included)
• 1 Year Warranty
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OFF
PITCH
Battery Cover /
Pocket Clip
Alligator Clip Leads
& RJ-11/RJ-45 Combo
Plug Lead
On - Off /
Pitch Control
Lead Holder
4. Fox Jr. Diagram
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OFF
SENSITIVITY
On - Off /
Sensitivity
Control
Battery Cover /
Pocket Clip
Earphone
Jack
Inductive
Probe Tip
Visual Signal
Strength
Indicator (LED)
5. Hound Jr. Diagram
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6. Safety Warnings and Cautions
6.1
Do not connect FOX Jr or HOUND Jr to any source
of AC power. AC voltages above 30 volts can be
dangerous, and may result in user injury. The FOX
Jr and HOUND Jr are not intended to trace live
AC power lines. The FOX Jr will be damaged if
connected to a live AC power line.
6.2
Use care when using the HOUND Jr to probe
any wire or cable. An unexpected dangerous
voltage may be present, which may result in
injury to the user.
6.3
Use caution when working with telephone
lines. They can support dangerous voltages. 50VDC
is often present, and 100VAC may be present
during ringing. Additionally, telephone lines may
support dangerous levels of common mode volt-
ages. In some circumstances, user injury may result.
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6.4
Use caution when working with any long uncon-
nected wire or cable. Under some conditions,
unconnected wires may “oat up” to dangerous
potentials, and touching them may result in
user injury.
6.5
Use care when connecting the FOX Jr to any wire
or cable. An unexpected dangerous voltage may
be present, which may result in injury to the user.
6.6
Potentials applied to any connection of the FOX
Jr may appear on other FOX Jr connections. For
example, a potential applied to the RJ-11 plug
may appear on the alligator clips. This could
pose a shock hazard to the user, if for example, a
telephone cable with 120VAC on it is connected to
the FOX Jr. The 120VAC may appear on the alligator
clips, and shock the user.
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6.7
Do not use the FOX Jr or HOUND Jr if either unit
appears to be damaged. A damaged unit may
lead the user to a false conclusion, resulting in
user injury.
6.8
Do not use the FOX Jr or HOUND Jr if either unit
is wet. A wet unit may result in shock or injury to
the user if connected to live circuitry.
***WARNING***
The FOX Jr and HOUND Jr are designed to
work on non-energized (except telephone
lines) wires or cables. Attempting
to test energized wires may damage
the FOX Jr and HOUND Jr, cause user
injury, or both.
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7. Specications
7.1 FOX Jr. Specs
Output Voltage: 6 volts peak to peak square
wave into an open circuit
Output Type: Warble
Output Frequency Range: 800Hz to 5KHz
Frequency Adjustment: Thumbwheel
Overload Protection: Tolerates 120 volts AC at
60Hz at alligator clips or
modular plug
Connections: Alligator clips and RJ-11 /
RJ-45 Combo modular plug
Lead Length: Approx 4"
Battery: A23, 12 volt , Triplett 37-60
(protected against the
accidental reversal of the
battery polarity)
Size: 5.8" (L) x 1.25" (W) x 0.8" (H)
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Weight: Approx 1.6 oz.
7.2 HOUND Jr. Specs
Amplier: JFET and Integrated Circuit for
Hi-Impedance and Hi-Gain
Sensitivity: Adjustable with thumbwheel,
detects FOX Jr up to 12" away
Probe: Non-conductive, insulated
probe
Earphone Jack: Accepts standard 1/8"
(3.5mm) mini phone plug,
either mono or stereo.
For use with electromagnetic
(dynamic) earphones from
8 Ohms to 2000 Ohms.
Automatically mutes loud-
speaker when earphone is
used. An earphone with a
shielded cable is suggested to
reduce the possibility of feed-
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back from the cable to the
probe tip.
Signal Strength Indicator: Bright red dual LED
visual signal strength indicator
Battery: A23, 12 volt , Triplett 37-60
(protected against the
accidental reversal of the
battery polarity)
Power Beeper Reminder: HOUND Jr beeps and
ashes periodically to remind
user that it is on.
Size: 5.8" (L) x 1.25" (W) x 0.8" (H)
Weight: Approx 1.7 oz.
7.3 FOX Jr. & HOUND Jr. Kit
Case Size: 6.2" (L) x 2.8" (W) x 1.3" (H)
Weight: Approx 4 oz.
(both units & case)
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8: Getting Started
8.1 Installing Batteries
Remove the black pocket clip from both the FOX Jr
and HOUND Jr. Install an A23 battery in each prod-
uct, observing proper polarity (negative towards
tip), and replace the pocket clips.
8.2 Initial Tests
Turn on the HOUND Jr by rotating its thumbwheel
from the o position to the fully on position. At
this time, you may not hear any sound from the
HOUND Jr, or you might hear a buzzing sound
if standard uorescent lights or other electronic
equipment are operating in the vicinity. If you leave
the HOUND Jr operating this way, it will beep and
ash periodically to remind you it is turned on.
With the HOUND Jr’s tip positioned near the leads
of the FOX Jr, turn on the FOX Jr by rotating its
thumbwheel from the o to on position. The FOX
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Jr’s warbling signal should be heard coming from
the HOUND Jr. Adjust the thumbwheel on the
FOX Jr while listening to the HOUND Jr. Notice
how some pitches of the sound are louder than
others. In use, the user will usually adjust the FOX
Jr to one of the louder pitches, so the HOUND Jr
will be easier to hear while tracing wires.
With the FOX Jr adjusted to one of the louder
pitches, experimentally position the tip of the
HOUND Jr in dierent locations around the leads of
the FOX Jr, noting how the loudness of the HOUND
Jr, and the brightness of the signal strength LEDs,
increase as the leads are approached. Adjust the
thumbwheel on the HOUND Jr to reduce its loud-
ness when the HOUND’s tip is right against one
of the FOX’s leads.
The HOUND Jr’s earphone jack accepts a standard
1/8" (3.5mm) mini-plug. This type is often used with
portable music playing devices. The earphone may
be either a stereo or mono type. For best results,
the lead wire should be shielded to reduce the
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possibility of feedback occurring between the lead
wire and the HOUND Jr’s probe. When the plug is
inserted into the jack, the HOUND Jr’s speaker
is turned o, and the sound can only be heard
through the earphone.
To use the earphone, turn on the HOUND Jr with
the Volume / Sensitivity thumbwheel to minimum,
and then plug the earphone into jack. Adjust
the thumbwheel for a comfortable sound level
in the earphone.
Helpful Hints
Setting the Volume / Sensitivity thumbwheel to
minimum prior to using the earphone, as previ-
ously described, can often save the user from a
jarring experience. Sounds that are not very loud
in the speaker, can be very loud in the earphone.
When using the earphone, the high gain of the
HOUND Jr’s circuitry may cause “feedback” at
high thumbwheel settings. Feedback is a squeal-
ing or whining sound, and it can be very loud, so
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use caution. Reduce the thumbwheel setting to
reduce the feedback.
Because the FOX Jr’s test leads are so short, the
HOUND Jr may not detect the warble signal more
than a few inches away. When the FOX Jr is con-
nected to longer wires, the HOUND Jr’s sensing
distance will improve.
At high thumbwheel settings, the HOUND Jr’s
high sensitivity may cause the Signal Strength
LED to ash when the tip is tapped or rubbed.
This is normal.
9: Detailed Information
9.1 Methods
Two dierent basic tracing methods are commonly
used . . . the “LINE/GROUND” connection, and the
“LINE/LINE” connection.
9.1.1 LINE/GROUND Connection
The LINE/GROUND connection produces the
strongest tracing signal, but also creates“crosstalk”
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of the signal into other wires in the cable. If the user
is trying to identify a cable, and not an individual
conductor in the cable, the LINE/GROUND method
usually produces the best results. This method has
been used to trace electrical wires (like Romex),
speaker wires, intercom wires, thermostat wires,
alarm wires, cable television wires, etc. through
drywall, wood ooring, and carpeting.
A “good” earth ground is usually not required. In
fact, a large metal object like an oce desk, a le
cabinet, or a metal plate on the oor, can be used.
On vehicles, the metal chassis of the vehicle can
be used as the ground. A metal hulled boat can
use the hull as a ground, and a wood or berglass
hulled boat can use the surrounding water as a
ground (make connection to a metal fitting in
contact with the water or drop a wire into the
water). The ground connection is only required
at the FOX Jr end of the cable or wire, however,
a ground connection at the far end is handy for
identication of the target wire (read following
text on tracing).
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To setup the LINE/GROUND connection, clip one
alligator clip (either color) of the Triplett FOX Jr to
the“ground”, and the other alligator clip to the wire
being traced. (See Figure 1)
9.1.2 LINE/LINE Connection
The LINE/LINE connection is useful for identifying a
pair of wires in a multi-wire cable, or for identifying
a pair of wires in a bundle of wires. When wires are
“paired”in a cable, they are often twisted together
in a manner that reduces crosstalk of any signal
on the wires into adjacent wire pairs. Telephone
cables are constructed in this manner, so a LINE/
LINE connection is often used to trace telephone
cables. The FOX Jr’s modular plug applies a LINE/
LINE connection when plugged into its mating
modular jack (connected to a telephone line).
(See Figure 2)
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MULTI-WIRE CABLE
TERMINALS
TARGET
WIRE
Figure 1 Line/Ground Connection
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MULTI-WIRE CABLE
TERMINALS
TARGET
WIRES
Figure 2 Line/Line Connection
9.1.3 Testing
Whether the LINE/GROUND or LINE/LINE con-
nection is used at the FOX Jr, the use of the HOUND
Jr for tracing the signal is the same. In general, the
HOUND Jr is used by bringing it into proximity
with the wire/cable that is being traced, listening
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for the TONE signal from the FOX Jr, and moving
the HOUND Jr in such a manner as to increase the
loudness of the TONE signal from the HOUND Jr’s
speaker . . . i.e. searching for the loudest TONE
signal. The HOUND Jr’s Volume Control is adjusted
to a comfortable level. Usually, it is set to maximum
when the tracing wires through walls and ceilings,
and is set to a lower setting when in close proximity
to the signal carrying wires. The HOUND Jr’s LED
glows brighter when the sound from the speaker is
louder. In situations where there is a lot of acoustic
noise, observing the brightness of the LED, or using
earphones, may prove more useful than attempt-
ing to hear the signal from the speaker.
To begin using the HOUND Jr, turn on the HOUND
Jr by rotating its thumbwheel from the o position
to the fully on position. It is normal to hear a hum-
ming or buzzing noise coming from the HOUND Jr’s
speaker when it is in an area with standard uores-
cent lights, neon signs, transformers, etc. In fact,
an easy test to verify the HOUND Jr is working is to
move it toward an operating standard uorescent
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