Product Manual

9
Each time the UP or the DOWN arrow is pressed, the gain is adjusted by 1/30th of the
full scale range and the gain level, preceded with an “L”, is shown temporarily to the user
on the main signal display. The bar graph will change with approximately 6 presses of the
UP or DOWN arrow. The user may press and hold the UP and DOWN button to change the
gain rapidly.
• FREQUENCY/MODE INDICATOR – The upper left of the LCD consists of 4 icons: "512
Hz”, “33 kHz", "82 kHz", and "Passive Arrow". The lower center of the LCD contains the
“SONDE” icon.
These icons are used by themselves, or in various combinations to indicate
different operating modes, as shown in the following table, where (C) is conductive mode,
(IC) is inductive clamp mode, and (I) is inductive mode. See CHAPTER I: REX OPERATING
MODES for a description of these modes.
OPERATING MODE
SONDE
33 kHz
82 kHz
512 Hz
PASSIVE ARROW
C, IC, I at 33 kHz
Off
On
Off
Off
Off
C, IC, I at 82 kHz
Off
Off
On
Off
Off
C at 512 Hz
Off
Off
Off
On
Off
Sonde (*)
On
Off
Off
On
Off
Passive 50/60 (**)
Off
Off
Off
Off
On
(*) The default sonde frequency is 512Hz. Rex has the capability to locate a number of
alternate legacy Schonstedt sonde frequencies. For more information on these and how
they are displayed, contact the factory.
(**) The number 50 or 60 shows briefly on the numeric display upon entering this mode,
indicating which line frequency the unit is programmed to locate in passive mode.
• DIRECTION INDICATOR - The arrows and center bar in this indicator tell the
operator in which direction to move the receiver in order to be directly over the target.
The direction indicator does NOT work in the Sonde operating mode.
o Right Arrow - Receiver should be moved to the right to get closer to the
target.
o Left Arrow - Receiver should be moved to the left to get closer to the target.
o Both Arrows and Center Bar - Receiver is placed close to or directly over
the target. This is also accompanied by a beeping sound.
When all three elements of this indicator are OFF, the signal strength is not
adequate to make a directional determination or you are not close to the pipe or
cable being traced. Keep searching based on the signal strength indication and the
audio feedback, until one of the arrows comes ON.