Heath Consultants Magna-Lock - Manual (Page 6)

6
Basic Operation and Descriptions
Power On Button: Press once to activate the locator circuitry.
Simultaneously, the circuitry is automatically set to the proper au-
dio tone.
Power Off Button: Press once to turn the battery power off.
Volume Control: Rotate the knob to the desired audio sound level.
Full volume is achieved when the knob is turned full clockwise.
Sensitivity Control: The sensitivity or depth range can be
varied with the rotation of the sensitivity knob. Maximum range is
provided at full clockwise rotation. The optimum setting is deter-
mined by each particular application. Areas crowded with various
undesired ferrous metal may require a reduced sensitivity level.
Deeply buried objects being searched will require the higher sen-
sitivities.
Control Knob Decal: The markings for both the sensitivity
and volume control knobs are provided as a reference for
future settings or comparisons.
Speaker: When no magnetic metal is present the audio
sound heard will be a low frequency tone. As ferrous metals are
approached the audio tone will increase.
LCD Visual Display: Several visual display functions are provided
for ease of operation as defined below.
Ferrous-Defines the basic function of the locator as a “ferrous
locator” (fixed indicator).
Digital Signal Indicator- A two digit numeric display shows the
relative signal level related to the audio signal response being
heard from the speaker. At the lowest signal level when no
magnetic metal is present a small number will be viewed be-
tween “0” and “5”: As metal is approached, the numbers will
increase until “95-99” is viewed. Deeply buried objects or lower
sensitivity levels will yield a lower peak number to aid in pin-
pointing.