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when you turn on the unit.
The red LED flashes every 4 seconds as a visual
indicator and reminder.
This is the mode of " Filter off ".
●
An instant press of the round " " button to change
into the mode of " Filter on ".
The green LED flashes every 4 seconds as a visual
indicator and reminder.
This is the mode of " Filter on " which can avoid the
AC power line interference of 50Hz/60Hz.
●
The " Filter on " mode and the " Filter off " mode can
be exchanged by an instant press.
●
The volume control can be adjusted to suit the
environment. The volume can be increased
to overcome noise or decreased to reduce
interference.
●
Touch the tip of the filter probe to the insulation of
each suspect conductor.
●
Reception of tone will be loudest on the subject
wire. The brighter the LED, the stronger of tone signal
detected.
●
Press the round " " button for more than 3 seconds
to turn off the filter probe.
You can hear a long beep when you turn off the unit.
The filter probe also has the auto-off function
(5 minutes).
C. Special Application
●
Plug in the phone jack activates the filter probe
automatically without a long press of the round
" " button. It is equipped for connecting a lineman’s
operation.
