5
SYMBOLS
Battery
Refer to the manual
Double insulated
Dangerous Voltage
Direct Current
Earth Ground
Alternating Current
Audible tone
Conforms to relevant Australian
standards.
Complies with EU directives
Do not dispose of this product as
unsorted municipal waste.
Underwriters Laboratories.
Application around and removal
from hazardous live conductors
is permitted
INTRODUCTION
AMPROBE is dedicated to designing, manufacturing and marketing high quality, reliable
instruments for the skilled professional. AMPROBE has a history of providing safe, reliable
equipment to trace energized wires, circuit breakers, tracing deenergized wires, and locating
opens. The AT-1000 Advanced Tracing System combines these features in one versatile tool and is
effective in solving most tracing problems.
The AT-1000 is a troubleshooting tool. An experienced troubleshooter will understand how
the system to be traced works under normal conditions, and be familiar with the types of
malfunctions that can exists. A thorough understanding of “Ohms Law” is helpful. It is a
good idea to test the circuit for parameters such as Volts, Ohms, and Current to determine
whether the circuit is “shorted”, “semi-shorted”, or “open”, before attempting to trace. The
characteristics of these malfunctions will designate which components, and tracing method, will
be most effective in locating these malfunctions.
A thorough understanding of the operation and function of each of the AT-1000 components is
essential. Overall, this knowledge could mean the difference between spending several minutes
or several hours on a job. Pay special attention to the “Safety Precautions and Warnings”.
Experiment under known conditions. You will gain the confidence to use it on a daily basis and
solve problems which were previously unsolvable.
SAFETY PRECAUTIONS AND WARNINGS
Read this manual in its entirety before proceeding with any testing.1.
