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Platinum Tools Fault Trapper TFT100 User Manual page 15

Transient fault location for energized dedicated circuit breakers
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4. Stopping a Test – The three ways a test can stop are:
a. When the AC power goes down,
b. The Test button is pressed
c. The Ignore button is pressed.
When the AC power goes down the unit will run on battery power for
long enough to finish scanning for the fault which may have caused
the AC to power off (breaker trip). If a fault occurred within the last
several seconds before the AC went down it will be classified as the
"Breaker Trip Fault", the "Voltage!" icon will be displayed when this
occurs.
A non-breaker trip fault (if found earlier during the test) will also
be saved. When the Test button is pressed during a test any fault
found will be saved as a "Non-Breaker Trip Fault" and testing halted.
A second press of the Test button will
restart testing.
5. Ignore Feature – The ignore function
allows for ignoring a fault location that is
being reported under normal operation
of the circuit. The primary use would be
when a load which causes "faults" during
testing that are not important and should
be ignored to make it easier to find real
wiring issues. One example would be an
air conditioning compressor cycling on
and off.
A fault that trips the breaker will be
shown in the results regardless of
whether or not the fault was ignored.
Setting an Ignore - To save an ignore
location press the Ignore Button for a
short time. When an ignore is set the
Fault Trapper will alternate showing the distance to be ignored and
"IGN" until testing is resumed. If the Ignore Button is pressed while
a test is running the test will be stopped and the last fault found will
be saved. If the test is not running the fault to be ignored must be
chosen using the Display Button to toggle to the fault to be ignored
and then a short press of the Ignore Button will save that location.
The ignored location will continue through power cycles of the
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If the displayed fault is
to be ignored, press the
IGNORE button briefly. 
The test will stop running
and alternate between
displaying the current
fault to ignore and
displaying "IGN" until the
test is restarted.

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