DESCRIPTION
The TW-8800 Multi-Frequency Line Tracer consists of a transmitter,
receiver, ground-plate/ground-rod assembly, a carrying case, and
an operators manual. The TW-8800 has both active and passive
locating features.
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Active locating utilizes both the transmitter and the
receiver. By applying a signal with the transmitter,
the operator can trace the path of the utility with
the receiver. Different utilities respond better to
different frequencies, and the TW-8800 has three
frequencies the operator can choose from: 82 kHz,
8.2 kHz, and 820 Hz.
There are three methods of active locating that an
operator can use to trace a utility. The conductive
method is the most preferred method, since a strong
transmitter signal is transmitted through the intended
target. The operator can choose any of the three
frequencies to trace the utility. The type of utility
being traced would be the determining factor as to
which frequency to choose. The inductive method is
the easiest method to use, but may not yield the best
results. When a direct connection is not available,
but the operator has good knowledge of where one
point of the utility may be, the operator can place
the transmitter over the utility making sure that the
arrow on top of the transmitter is parallel to the path
of the utility. Inductive locating can be done at the
82 kHz and the 8.2 kHz frequencies. The third method
of active locating involves using the coupling clamp
accessory. The coupling clamp is used when the
utility is exposed, but a direct connection is not
available. The clamp jaws are opened and placed
around the utility. The clamp never makes a direct
connection with the utility; that is, the utility can
move freely with the clamp around it. This method
can only be used at the 82 kHz frequency.
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Laws governing the use of metal detectors are common in some
areas. In many countries, the use of metal detectors is illegal or
severely restricted. DON’T LET THIS HAPPEN IN YOUR COUNTRY!
• Always check Federal, State, County and local laws before
searching.
• Respect private property and do not enter private property
without the owner’s permission.
• Take care to refill all holes and try not to leave any damage.
• Remove and dispose of any and all trash and litter found.
• Appreciate and protect our inheritance of natural resources,
wildlife and private property.
• Act as an ambassador for the hobby, use thoughtfulness,
consideration and courtesy at all times.
• Never destroy historical or archaeological treasures.
• All treasure hunters may be judged by the example you set;
always conduct yourself with courtesy and consideration of
others
.
LET’S PRESERVE OUR TREASURED HOBBY
TREASURE HUNTERS’ CODE OF ETHICS
Using headphones (not supplied) improves battery life, and
prevents the sounds from annoying bystanders.
It also allows you to hear subtle changes in the sound more
clearly, particularly if searching in a noisy location. For safety
reasons, do not use headphones near traffic or where
other dangers are present. This device is to be used with
interconnecting cables/headphone cables shorter than three
meters.
USING HEADPHONES
