Product Manual

6 • Magna-Trak 200 Series Magnetic Locator
4. BASIC OPERATION AND DESCRIPTION
4.1 Power On/Off Switches
Press “ON” once to activate the locator circuitry. Press again to turn the battery
power off.
4.2 Volume and Sensitivity Control
Sensitivity Setting: The sensitivity or depth range can be varied using the “UP”
and”“Down” buttons while observing the associated bar graph and two-digit numeric
display. When the “UP” or “Down” buttons are pressed, the two-digit numeric display
changes from a signal level indication to a sensitivity level indication. The two-digit
numeric display can be incremented or decremented by one by pressing and
releasing the “UP” or “Down” button. If the”“UP” or “Down” button is pressed and
held, the two-digit numeric display will continue to increment or decrement until the
button is released. The associated bar graph will give a coarse indication of sensitivity
level.
1-bar, lowest sensitivity: 0-14 numeric
2-bars, higher sensitivity: 15-30 numeric
3-bars, next higher sensitivity: 31-45 numeric
4-bars, highest sensitivity: 46-99 numeric
The microcontroller will remember and return to the last sensitivity level selected the
next time the instrument is placed the “ON” position. The optimal setting is
determined by each particular application.
Volume Setting: The volume can be varied using the “UP” and”“Down” buttons while
observing the associated bar graph and two-digit numeric display. When the “UP” or
“Down” buttons are pressed, the two-digit numeric display changes from a signal
level indication to a volume level indication. The two-digit numeric display can be
incremented or decremented by one by pressing and releasing the “UP” or “Down”
button. If the”“UP” or “Down” button is pressed and held, the two-digit numeric
display will continue to increment or decrement until the button is released. The
associated bar graph will give a coarse indication of volume level.
1-bar, lowest sound: 0-33 numeric
2-bars, quieter tone: 34-48 numeric
3-bars, below maximum: 49-73 numeric
4-bars, maximum sound: 74-99 numeric
4.3 Speaker
When no ferrous metal is present, the audio sound heard will be a low frequency
tone. As ferrous metals are ≠approached, the audio tone will increase.