Schonstedt Instruction Manual

9
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Each time the UP or the DOWN arrow is pressed, the gain is adjusted roughly by
1/30th of the full scale range. Therefore, it takes approximately 3 presses of the
UP arrow to add one bar to the graph and approximately 3 presses of the DOWN
arrow to delete one bar from the graph. By depressing and holding the UP or
DOWN will allow to rapidly scroll the manual gain setting.
 FREQUENCY/MODE INDICATOR - This LCD area consists of 4
icons: "SONDE", "33 kHz", "82 kHz", and the "Passive Arrow".
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 PASSIVE ARROW
C, IC, I at 33 kHz Off On Off Off
C, IC, I at 82 kHz Off Off On Off
C at 512 Hz
(
*
)
Off Off Off Off
Sonde
(
**
)
On Off Off Off
Passive 50/60
(
***
)
Off Off Off On
(*) The number 512 shows briefly on the numeric display upon entering this frequency.
(**) The number 512 (the default sonde frequency supported by the Rex) shows briefly
on the numeric display upon entering this mode.
(***) 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.