Headphone Jack; Audio Target Identification; Reading The Display - Macleanenergy MCE930 Bedienungsanleitung

3. NOTCH Mode - To selectively eliminate one or several
metals from the categories, you can use NOTCH mode.
DISC/NOTCH indicator shows current target discrimination
level, and an object's probable identification is indicated by
the arrows at the top of the display. SENS shows current
sensitivity level. While DEPTH indicates the probable target
depth.
Adjusting Target NOTCH Range: In NOTCH mode, press ADJ
to enter into DISC/NOTCH range setting status. LCD displays
"DISC/NOTCH" at bottom right corner. Press + / – touch pad ,
and one of the arrows in target indicator will flash, press ENT
to accept or reject the corresponding metal category. Press
again + / – its right (left) arrow will flash, then press ENT to
accept or reject another metal category which the current
arrow pointing to. Same as the others.
4. AUTO-NOTCH Mode - When detector is working in AUTO-
NOTCH mode (LCD shows "AUTO-NOTCH" at bottom side),it
eliminates trash metals automatically and keep the detection
for coins. Eliminated trash metals include: Bottle caps, S-CAPS,
IRON/FOIL, Pull Tab. DISC/NOTCH range (not adjustable)
displays current target identification range. And an object's
probable identification is indicated by the arrows at the top of
the display. SENS shows current sensitivity level. While DEPTH
indicates the probable target depth.
4. Sensitivity Adjustment
Adjusting Sensitivity in DISC,NOTCH and AUTO-NOTCH
MODE: Press ADJ to enter into sensitivity setting status (LCD
shows "SENS" at bottom right corner), press + pad to increase
the detector's sensitivity level, and press – to decrease the
sensitivity. Note: Sensitivity is not adjustable in ALL METAL
mode.
ELECTROMAGNETIC INTERFERENCE
The principle use for the Sensitivity Control is to eliminate
electromagnetic interference. This metal detector is an
extremely sensitive device; the search coil creates its own
magnetic field and acts like an antenna. If your detector beeps
erratically when the search coil is motionless, the unit is
probably detecting another electromagnetic field. Common
sources of the electromagnetic interference are electric power
lines, both suspended and buried, motors, and household
appliances like computers and microwave ovens. Some indoor
electronic devices, such as dimmer switches used on
household lighting, produce severe EMI and can cause the
detector to beep erratically. Other metal detectors also
produce their own electromagnetic fields; so if detecting with
a friend, keep two metal detectors at least 6 meters apart.
SEVERE GROUND CONDITIONS
A secondary use for the Sensitivity Control is to reduce false
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detection signals caused by severe ground conditions.
Although this metal detector has specially designed circuit to
reduce the ground mineralization, the ground conditions in
field hunting cannot be anticipated. Highly magnetic soils
found in mountainous can cause the detector to emit tones
when metal objects are not present. High saline content soils
and sands can sometimes cause the detector to false. If the
detector emits false, non-repeatable, signals, REDUCE THE
SENSITIVITY.
MULTIPLE TARGETS
If you suspect the presence of deeper targets beneath a
shallower target, reduce the sensitivity to eliminate the
detection of the deeper targets, in order to properly locate
and identify the shallower target.
4.5 Surface Elimination
Press SURF ELIM to enter into or quit Surface Elimination
mode. SURF ELIM only works in motion mode. SURF ELIM can
improve the accuracy of detection result in soil with mass
trash metal. It restrains the signal from trash metal in soil
surface layer, and balance the signal from large target. But
detector's sensitivity is decreased in this mode.

4.6 Headphone Jack

Using headphones(not supplied) with your metal detector
makes it easier to identify subtle changes in the threshold
levels for better detection results, and also reduces drain on
the batteries. The metal detector has a stereo headphone jack
located at the control panel.
Caution: To protect your hearing, set the volume to the
lowest setting before you begin listening. Extended high
volume listening can lead to permanent hearing loss.
7. ATI (Audio Target Identification)
While the LCD (Liquid Crystal Display) is very accurate in
identifying buried objects, the user in the field does not
always maintain the display screen in his field of vision.
Therefore, we have incorporated an audio feedback
mechanism to alert the user to the nature of buried objects.
This audio feedback system first alerts the user to the
presence and classification of objects, whose nature and
location can be confirmed using the LCD display.
The 3-tone audio target identification system functions only
in the motion modes of operation. The detector must be in
the DISCRIMINATION, NOTCH or AUTO-NOTCH modes. In ALL
METAL mode, the detector will emit only a monotone sound.
The detector can sound three different tones, depending on
the object detected.
LOW TONE
Bottle caps, nickel coins (5¢) smallest gold objects will
induce a bass tone.
MEDIUM TONE
Pull-Tabs, S-CAPS, zinc coins, Newer pennies (post-1982),
gold objects will induce medium tones.
HIGH TONE
1¢(1950), 10¢, 25¢ and 50¢ fall into this category.
5. IN THE FIELD TECHNIQUE

5.1 READING THE DISPLAY

1. Target Indicator
The Liquid Crystal Display (LCD) shows the PROBABLE
identification of the targeted metal, as well as the PROBABLE
depth of the target. The detector will register a repeating,
unchanging target identification when a buried target has
been located and identified. If, upon repeated passes over
the same spot, the target identification reads inconsistently,
the target is probably a trash item, or oxidized metal. With
practice, you will learn to unearth only the repeatable
signals. Also, the greater the distance between the target
and the coil, the less accurate the target identification
GOLD - Gold objects will register on the left side of the LCD
scale. Gold will register depending upon its size. The smaller
the gold object, the further to the left it will register. Gold
flakes will register on the far-left side (under Iron), Large
gold items will register under S-cap or Zinc.
IRON - Ferrous objects will register on the far-left side of the
target identification scale. Objects in this category could be
worthless scrap, or a more valuable iron relic.
5¢ - Nickels and most newer pull tabs (those that stay
attached to the can) will register here.
Pull-Tabs - Pull-tabs from older beverage cans will register
here. Few newer pull-tabs will also register here. Many gold
rings will also register here.
S-CAPS - Screw bottle caps and some small gold will register
here.
1¢ - 1¢(post-1982) or copper coin register here.
SILVER
10¢/1¢ - 1¢ (pre-1982), 10¢ or aluminum coin.
25¢ - 25¢, some small silver coins, or large aluminum coins
50¢ - 50¢, or some large silver coins
Note: The target indications are visual references. Many
other types of metal can fall under any one of these
categories. While this metal detector will eliminate or
indicate the presence of most common trash items, it is
impossible to accurately classify ALL buried objects.
2. Depth Indicator
The Depth Indicator is accurate for coin-sized objects. It
indicates the relative depth of the target. Large and
irregularly-shaped objects will yield less reliable depth
readings.
When passing over an object, the depth indicator will light
up and stay illuminated until another object is scanned.
Repeated indication at the same depth level indicates an
accurate target detector. If the depth indication varies with
each sweep, try sweeping at different angles; there may be
more than one target present. With practice, you will learn
the difference between accurate readings, multiple targets,
and highly erratic readings which evidence trash or
irregularly shaped objects.
NOTE: Depth indication is different for the same target in air
from that under the ground.
5. INDOOR TEST
Supplies Needed : A Nail , A Quarter, A 1¢(post-1982)
1. Turn on the detector.
2. Place the detector on a wooden or plastic table, and take
off the watch, ring or other metal objects on your hand or
arm.
3. Adjust the search coil so the flat part points upwards.
4. When the operating mode is in DISC Mode, NOTCH or
AUTO-NOTCH mode, evenly sweep the nail 10-12cm above
the flat face of the search coil. The detector will emit a low
tone when detects the sample, and the arrow pointing to
nail in target indicator illuminates. The DEPTH indicator also
displays corresponding value. Repeat the above test with
a1¢ (post-1982). Detector sounds medium tone this time,
and target indicator arrow points to 1¢. While In the test of
25¢, detector emits high tone and arrow points to 25¢.
NOTE: When the sample is a coin, better let the flat side of
the coin parallel with the flat face of the search coil, and
sweep it evenly, so that the detector can find the target
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