Amprobe ATGC-1 Ground-Coil - Manual (Page 6)

5
SymboLS
�
Battery
�
Refer to the manual
�
Double insulated
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Dangerous Voltage
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Direct Current
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Earth Ground
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Alternating Current
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Audible tone
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Conforms to relevant Australian
standards.
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Complies with EU directives
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Do not dispose of this product as
unsorted municipal waste.
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Underwriters Laboratories.
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Application around and removal
from hazardous live conductors
is permitted
UNpACkING ANd INSpECTIoN
1x ATGC-1 Ground Coil
1X User’s Manual
dESCRIpTIoN
The ATGC-1 Ground Coil (Fig. 1) allows the signal from the Transmitter in the Advanced Tracer
AT2000 and AT-4005CON series to be induced onto buried conductors, water pipes, and gas
pipes up to 6 feet deep. This allows tracing of conductors up to 300 feet in length.
SETUp ANd INdUCTIvELy CoUpLEd SIGNALS
The initial setup of the ATGC-1 to achieve maximum signal induction is accomplished easier
if two people participate. One person to hold the receiver and one person to adjust the coil
position.
Since the ATGC-1 creates a large field, it is possible that the field may be induced onto
other known or unknown conductors in the area. By rewinding or recoiling the ATGC-1 so
the overall diameter of the coil is smaller, the field will become smaller and may eliminate
coupling to adjacent conductors in the area.
The conductor with the lowest resistance, has the most current flowing through it or has the
largest mass, will carry the greatest signal. Underground conductors must be grounded on
both ends or have current flowing through them in order for a signal current to flow. The
Receiver must be set to the “Short” mode in order to sense this signal.
The Receiver should only be set to the “OPEN” MODE if the conductor is not grounded on
both ends and no earth shield is present between the conductor and receiver.