16
The
Battery Check
position is used to evaluate the battery level as follows
(the LED is located between
Sensitivity
and
ATS
potentiometers):
Green LED: More than 30 minutes remaining
Orange LED: 30 minutes or less remaining
Red LED: Less than 15 minutes remaining
NOTE:
In any search mode, the detector signals a critically low battery by flashing
the LED red and emitting a continuous tone. At that point, there are less than 15
minutes left.
Frequency
The
Frequency/Delay
control has two functions. This entry describes its use to
minimize the effects of EMI noise. To learn how to use this control to set the pulse
delay, please refer to the
Pulse Delay Control
information on page 19.
The
Frequency
setting makes small adjustments to the transmitter pulse rate. This
is used to counteract any interference from other electromagnetic sources, such as
radio stations, microwaves, short waves, electric fences, power lines or other nearby
metal detectors. This interference is recognizable as a warbling or repetitive pulsing of
the audio threshold and can mask target signals.
If you are experiencing interference, adjust the
Frequency
as follows:
•
Set the detector to
Batt/Freq
mode with
Sensitivity
set to 5.
•
Hold the shaft horizontally with the coil positioned vertically perpendicular
to the ground.
•
Sweep 360° with the coil at least 3 feet above the ground.
•
Stop at the position where you hear the most noise.
•
Holding that position, rotate the
Frequency/Delay
switch to find the
quietest setting.
Adjustments should be done slowly, with a few seconds between each adjustment
to see if the
detector stabilizes. If noise cannot be eliminated select the
Frequency
position that has the least noise and reduce the
Sensitivity
and/or
Threshold
settings
to obtain a stable operating point.
USER CONTROLS
(Continued)
