Harbor Freight Tools 67378 Metal Detector User Manual


 
Page 8 For technical questions, please call 1-800-444-3353. SKU 67378
Before Getting Started
Before beginning an outside search,
you must test the unit with samples of
metal. Use the following:
an iron nail
a ve-cent coin (nickel)
a one-cent penny (zinc coin, after
1982)
a 25-cent silver quarter.
Place the Metal Detector on a
wooden or plastic table with the
Search Coil face up. Make sure the
table is away from TVs, computers,
or any device that can cause
electromagnetic interference. See
Figure 4.
NOTE: Be sure to remove any
watches, rings, or other metal objects
on your ngers and hands.
Turn on the Metal Detector and
set the VOLUME dial to the middle
position. Set the MODE switch to the
middle (ALL METAL). See Figure 5.
Sweep the metal samples 2 to 3
inches or more above the center of
the Search Coil. The Metal Detector
will respond to each with a “DI” tone
and the pointer on the View Meter will
swing to the right.
NOTE: Be sure to move the samples,
as the Detector is in motion mode.
Otherwise the Detector will not
respond.
NOTE: Adjusting the SENS dial from
“0” to “10” will increase the Detector’s
sensitivity.
Use the DISC/TONE dial to search
for specic metals by having it not
detect (“differentiate”) other kinds of
metals.
100
Iron
Zinc
Aluminum/
Silver
Nickel
Copper
DISC/TONE Knob
Figure 6
For example, when the DISC/TONE
dial is set to “0” the Detector will
respond to ANY metal object with a
“DI” tone and the meter will swing to
the right.
Figure 4
Figure 5
Iron
Nickel/
Gold