Display Elements: Passive Trace Mode
The screen elements in Passive Trace Mode are the
same as those seen in Active Line Trace mode.
NOTE! Mode is determined by the type of target source
(Sonde or Line). A frequency must be selected
from the correct category if it appears in more
than one category, such as 33 kHz.
Display Elements: Sonde Mode
In Sonde mode, the screen elements include several fea-
tures that are unique to Sonde locating.
Signal
Strength
Figure 8 – Display Elements: Sonde Mode
Pipe Direction – Represents the approximate di-
rection of the pipe in which the Sonde is lying.
Sonde Icon – Appears when approaching the lo-
cation of a Sonde.
Equator – Represents the mid-line of the Sonde's
field perpendicular to the axis of the Poles. (See page 18).
Pole Icon – Represents the location of either of the
two Poles of the Sonde's dipole field. (See page 18).
Zoom Ring – Appears when the locator moves close to
a Pole.
Currently available frequencies in default setting in-
clude:
Sonde Mode
• 512 Hz
Active Line Trace Mode
• 128 Hz
• 1 kHz
• 8 kHz
• 33 kHz
Passive Line Trace Mode
• 60 Hz (9th)
• < 4 kHz
Radio Frequency
• 4 kHz – 15 kHz (L)
• > 15 kHz (L)
Default Frequencies
The SR-20 contains a large set of frequencies. The fre-
quencies which are currently available appear on the
Main Menu when the Menu Key is pressed. Additional
frequencies can be added to the Main Menu by checking
them active in the Frequency Sub Menu.
Currently available frequencies that are checked active in
the Main Menu can be cycled through by simply pressing
the Frequency Key. (see Figure 9).
Pipe
Direction
Keypad
Poles Icon
Volume Control
Zoom Ring
Key
Equator
Sonde Icon
Light
Sensor
Frequency Key
Figure 9 – Keypad
Power On/Off Key – Powers SR-20 on.Powers the
SR-20 down after a 3-second countdown. The count-
down can be interrupted before shutdown by pressing
any key.
during menu selection.
Select Key – Used to make a choice during Menu
selection.
Menu Key – Used to display a "tree" of choices (see
Page 27 for a complete listing of menu choices). Used
while in a menu to move up one level.
Volume Control Key – Used to raise or lower the vol-
ume setting; will cycle the volume from current setting by
steps, increasing to maximum and then mute. Volume can
also be raised and lowered using the Up and Down Keys
when the Volume screen is open.
Frequency Key – Used to cycle through the Checked-
Active frequencies. The list of frequencies that have been
set to Checked- Active status can be modified via the
Menu Key.
Ridge Tool Company
SeekTech SR-20
Up Key Menu Navigation/
Signal Focus/Proximity
Threshold Control
Up and Down Keys – Used for locating choices
Select Key
Audio Tone Reset/
Menu Item Select
Menu
Key
Power
ON/OFF
Key
Down Key
Menu Navigation/Signal
Focus/Proximity
Threshold Control
9