- If the detected signal is from ferrous metal (iron), then with increasing the levels of DISCR
DEPTH potentiometer from level "0" to about level "10", at high levels will lead to the
emergence of the typical for ferrous metals double pulled sound and/or to the level of total
rejection, or at least pop of the signal. Actual level at which rejection begins (the pop) is in
direct proportion dependence on the depth of which is buried the ferrous metal.
Actual behavior of the device in the above described situations are largely determined by the
given current levels of DISCR LEVEL and DISCR WIDTH potentiometers.
9.9. Loudspeaker
The Loudspeaker serves for producing a sound when an object is detected. The sound is deep-toned
and non-pausing for non-ferrous metals and recurring (repeating) for ferrous metals (iron).
The loudspeaker lies on the back panel of the electronic block.
9.10. PHONES connector
The PHONES connector serves for plug to metal detector, if necessary, stereo
headphones with 3.5mm stereo jack. When the headphones are plugged in,
the loudspeaker is switched off automatically and the metal detector’s sound
could be heard only in the headphones.
To the PHONES connector, may also include a 6.35mm stereo headphone jack means available
in the standard package a 3.5mm to 6.35mm external stereo audio adapter for headphones.
To protect your hearing, it is desirable before turning stereo headphones to BLISSTOOL
LTC48X, to reduce the volume of the metal detector by VOLUME potentiometer, as put it
between levels "2" and "3".
The use of stereo headphones with high-set volume of the VOLUME potentiometer can seriously
damage your hearing!
The use of stereo headphones while using the metal detector has many advantages:
- stereo headphones block outside noise such as wind and traffic and allow you to hear better,
even the weakest signals from deeply buried metal objects;
- through their use, the sound of your metal detector will not interfere with other searchers
around you;
- their use, provides reduced power consumption from the battery of the metal detector,
leading to an extension of its life.
9.11. BAT LOW LED
The BAT LOW LED shows the available charge in the battery. When this LED
lights up, it is a signal that the battery is exhausted. In very low battery, from
the loudspeaker of the metal detector began to hear periodic pulled sounds
and the metal detector stops working or not working correctly.
The charging of the battery
(for modifications with NiMH battery)
or replacement with a new
battery
(for modification with alkaline battery)
should be carried according to the description in
12.
BLISSTOOL LTC48X -
User Guide (version EN201008241400)
Page 16 of 28
