Amprobe AT-4000 Manuel utilisateur
AT-4000
Advanced Tracer
User’s Manual
Amprobe thanks you for purchasing the AT-4000AdvancedTracer. For your safety, please read
this instruction manual in its entirety.
LIMITED WARRANTY
VÉÇzÜtàâÄtà|ÉÇá4 Your new instrument has been
quality crafted according to quality standards and contains
quality components and workmanship. It has been inspect-
ed for proper operation of all of its functions and tested by
qualified factory technicians according to the long-
established standards of our company.
Your instrument has a limited warranty against defective
materials and/or workmanship for one year from the date of
purchase provided that, in the opinion of the factory, the
instrument has not been tampered with or taken apart.
Should your instrument fail due to defective materials,
and/orworkmanshipduring thisoneyear period,anocharge
repair or replacement will be made to the original purchas-
er. Please have your dated bill of sale, which must identify
the instrument model number and serial number and call the
number listed below:
Repair Department
Phone:954-499-5400 / 800-327-5060
Fax:954-499-5454
Website:www.Amprobe.com
Please obtain an RMA number before
returning product for repair.
Outside the U.S.A. the local representative will assist you.
Above limited warranty covers repair and replacement of
instrument only and no other obligation is stated or implied.
Table of Contents
Precautions & Introduction...........................................................................................02
Product Description.....................................................................................................03
Application Notes.........................................................................................................08
Using the R-4000........................................................................................................08
Using the T-4000.........................................................................................................09
A2202 Clamp-on Transmitter Accessory......................................................................12
Finding Opens.............................................................................................................13
Finding Ground Faults..................................................................................................14
Tracing Wires in Conduit..............................................................................................15
Locating Circuit Breakers or Fuses..............................................................................15
Tracing Wires...............................................................................................................16
Maintenance................................................................................................................18
Replacement Parts......................................................................................................19
Troubleshooting...........................................................................................................19
Specifications..............................................................................................................20
2
PRECAUTIONS
FOR PERSONAL AND INSTRUMENT PROTECTION
IMPORTANT:
1. Before using any electrical instrument, it should be checked to make certain it is
operating properly.
2. In many instances, you will be working with dangerous levels of voltages and/or current,
therefore, it is important that you avoid direct contact with any uninsulated, current
carrying surfaces.Appropriate insulated gloves and protective clothing should be worn.
3. Before attaching any of the conductors, make sure the voltage present is not beyond
the range of the instrument.
4.When not in use,keep the instruments in their carrying case.
5.When the R-4000 or theT-4000 will not be used for a period of time, remove the
battery to prevent leakage in the instrument.
INTRODUCTION
AMPROBE ATP SPX is dedicated to designing,manufacturing and marketing high quality,
reliable instruments for the skilled professional.The AMPROBE ATP SPX current tracer has
a history of providing safe,reliable operation in tracing energized wires, locating circuit
breakers and locating wires shorted to the ground.The AMPROBE ATP SPX open tracer has
the capability of tracing unenergized wires, locating open breakers and locating
open wires.
The AT-4000 Wire Tracer Upgrade System combines both the current tracing CT-100
and the AT-2000 series into one versatile tool providing the ability to solve virtually all
your tracing problems. In addition to the above features, the receiver provides a non
position sensitive when tracing wire and the transmitter provides a visual indication to
the user when the traced line is energized.The level of the signal transmission is also
indicated on the LCD of the transmitter unit.
Having confidence in an instrument is an important part of using the instrument.All
applications are different and unique. An understanding of the system’s operation
could mean the difference between several minutes or several hours on the job.
Please read this manual carefully.Take the time to learn how the instrument operates.The
operation is user friendly and easy to learn.Test it in a variety of situations.You will soon
have the confidence to use it on a daily basis to solve problems that were
previously unsolvable.
3
AT-4000 PRODUCT DESCRIPTION
The AT-4000 consists of two units:
T-4000 Transmitter (32.768KHZ, 9-600 volts AC or DC)
R-4000 Receiver(Non-position sensitive, Open / Short Tracing)
Unit Description
R-4000 Receiver:
It has two built in detectors that are tuned to pick up the 32.768Khz signals generated
by the T-4000 transmitter.The R-4000 is designed to display the signal strength to
enable quick locating of the conductor carrying the signal.
Fig.1 R-4000 Receiver
T-4000 Transmitter
When connected to an energized circuit, the T-4000 will filter the low frequencies up to
400Hz and rapidly indicate on the display that the wire is energized.When the user starts
the transmission, a combination of signals is injected on top of the 50, 60, or 400Hz that
cause a slight, periodic current fluctuation and allows the power line to emit its own,
traceable signal.This signal can be detected back to the main generator. However, the
signal will not interfere with any sensitive electronic equipment and does not require
power interruption.The unit is intrinsically safe and has a ‘LOW’ signal transmission set-
ting that must be used when tracing GFCI-protected circuits.
LED Indicator:
ON-OPEN
OFF-SHORT
LED Indicator:
ON-High Sensitivity
BLINKING - Medium Sensitivity
OFF-Low Sensitivity for breakers
LED Indicator:
Green-Unit ON
Red-Low Battery
Sensitivity Control
Power ON/OFF
Mode Control
When connecting to a circuit as a load, the signal will be present anywhere between the
T-4000 and the power source. (Line side or Upstream)- no signal will be present on
wiring on the other side of the transmitter(load side or downstream). For example, a
transmitter connected to a circuit breaker will produce no signal on that circuit. It will,
however, cause a signal to be generated between that panel and the transformer…and
beyond.When connecting to an unenergized circuit, the live indication on the display will
remain ‘OFF’.When the user starts the transmission, the transmitter injects a combina-
tion of signals onto the conductor.The signal will travel along the conductor until it ends.
There is no difference in the functional mode of the unit when tracing energized circuit
and unenergized circuits. On an open line, no current will flow, so the injected signal will
present itself as a voltage spike along the wire which is detected by the R-4000 in the
‘OPEN’mode.When the conductor is part of a complete circuit, the voltage causes a
current to flow which produces a signal that is detected in the ‘SHORT’mode.The
T-4000 contains a 9V battery.A 24V input jack accepts the B2024 rechargeable battery
or the B2025 110V converter, both use when a very strong signal is necessary.
(Note: When using the battery booster (B2024 or B2025) the unit will work in ultra
high “U-HI”mode only. Remove the battery booster to return to normal operation.)
Fig.2 T-4000 Transmitter
4
Fuse (inside) Holder
Power ON/OFF
Banana Plug Jack
Signal Level Switch
(Energized Line) Live
Transmission OFF Transmission LOW Transmission HIGH
Transmission MEDIUM
LCD Display
24 Volt Jack
SET (select a signal level)
9V Battery Compartment
Low Battery 18888
q LIVE SET VOP M
OFF LOW MID HIGH FT
A2202 Clamp-On Transmitter Accessory
Enables the T-4000 to induce its signal onto an unenergized or energized circuit. Plug
the A2202 into the T4000 and clamp it around any conductor in an unenergized circuit,
or the hot wire in an energized circuit.The signal will be induced on top of the 50,60,or
400Hz frequency which may be present.The AT2201 acts like a 1/2 Volt battery when
clamped around a conductor. On a complete circuit this voltage will cause about 80mA
of current to flow on top of the whatever frequency is present.
To increase the signal strength, loop the wire around the clamp a few times or use the
B2024 battery Pack.The A2202 will allow wire tracing without the need for
direct connection. (Note: When using the battery booster (B2024 or B2025) the unit
will work in ultra high “U-HI”mode only. Remove the battery booster to return to
normal operation.)
Fig.3 A2202 Clamp-On Transmitter Accessory
5
““UU--HHII””- Transmission Ultra High: Battery
booster is in use. To return to normal
operation, remove the battery booster.
U-Hi
q LIVE SET VOP M
OFF LOW MID HIGH FT
Fig.2 T-4000 Transmitter Continued
B2024 Battery Pack
24 Volt Nickel-Cadmium rechargeable cell custom designed for light weight,small size,
and durability. Used to boost the output of the T-4000. Consult the specs for the boost
levels. Includes a self-resetable fuse.Be sure to charge fully before use.
(DO not use the B2024 when tracing energized lines.)
Note: When using the battery booster (B2024 or B2025) the unit will work in ultra
high “U-HI”mode only. Remove the battery booster to return to normal operation.
Fig.4 B2024 Battery Pack
B2025 110V Converter/Recharger
Can be used to either recharge the B2024 or directly boost the T-4000.To recharge the
battery, leave it connected for at least 8 hours. (DO not use the B2024 when tracing
energized lines.)
Note: When using the battery booster (B2024 or B2025) the unit will work in ultra
high “U-HI”mode only. Remove the battery booster to return to normal operation.
Fig.5 B2025 110V Converter/Recharger
6
C2901 Pigtail- Banana Plug Cord set
For use on 110VAC receptacles.
Fig.6 C2901 Pigtail
C2902 Alligator-Clip Banana Plug Cord set
For direct contact to bare conductors
Fig.7 C2902 Alligator
MTL-G Grounding Test lead And Alligator Clip
Fig.8 Grounding Test Lead And Alligator Clip
7
APPLICATION NOTES
Using the R-4000 Receiver
1.Turn the R-4000 ‘ON’by pressing the Power ON/OFF push button.
2. Select the ‘High’sensitivity by pressing the sensitivity push button(LED ‘ON’).
3. Select the appropriate mode by pressing the MODE push button (LED ‘ON’: Open
tracing; LED ‘OFF’: Short tracing)
4.If the indication on the display is too strong (7-10 LEDs), change the sensitivity level
to MID (LED ‘blinking’).
IMPORTANT: Always conclude your tracing with the “MID”or “LOW”sensitivity
because the built in detector has a 360˚detection range. It will be a good idea to have
the transmitter on the low signal transmission depending on the length of the wire you
are tracing.
5.When tracing, move the R-4000 back and forth slowly over the path of the wire.The
strongest signal confirms the path of the wire.
Fig.9 R-4000 Receiver
8
In either SHORT or
OPEN MODE, the unit is
non position sensitive
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