Jaycar Electronics QP2303 User manual

LCD Portable
Metal Detector
With In Built Speaker
User Manual
1

Assembly
1. Relax the end of the bend-shape tube sleeve clockwise, and insert the
aluminum tube which connects the search coil into the tube sleeve, adjusting
the length so that you can stand comfortably and straighten your arms,when
the search coil is from the ground about 1/2 inches,then lock the tube sleeve
anti-clockwise.( Fig.1 and Fig.2)
2.
Fig. 1
Fig. 2
3. Let the plastic pillar with two nuts on the bottom of the detector control box
align with the two holes of the bend shape aluminum tube,and then lock it with bolts.
(Fig.3)
Fig. 3
Coil the cable of the search coil onto the stem,elasticity within measure so that the
cable won’t sway, and then insert the cable plug into the lower right plug of the
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control box.(Fig.4)
Fig. 4
4. The arm support has two positions,t he initial position is that the arm support is
in longer location, if your arms are shorter then you can adjust the arm support
position. Please release the left and right screw under the arm support when regulation
to loosen the left and right arm support, and remove the arm support forward to
another position,then tighten the two screws.(Fig.5)
Fig. 5
Batteries
Please use 6 x Alkaline AA batteries (not included).
1. Press the “key” on the battery cover in the direction of the arrow,pull out the
battery cover.(Fig 6)
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Fig. 6
2. Insert the 6 x AA batteries into the compartment as indicated by the polarity
symbols marked inside the compartment. (Fig 6)
Fig. 7
3. Close the battery cover. Please notice the “UP” direction indication on the battery
cover.
6 x Alkaline batteries can operate up to 40 hours battery life . If you don’t use detector
for a week or more, please remove the batteries from the battery box.
Function and indicator
1．LCD screen (Fig 8)
Fig. 8
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On the top of LCD screen is the TARGET ID，namely target identification
cursor. On the bottom is the DEPTH-SENS, namely the depth and sensitivity shared
cursor. The central left is the low-voltage indication cursor.
When searching,the target identification cursor divide the metal targets into
three categories :
Silver Higher conductivity metals,such as silver, aluminum and copper.
MID RANGE——Medium conductivity metals, such as nickel and some coins.
Generally golden rings can be also illumined at this point.
IRON——Low conductivity metals, such as iron and all types of ferrous metals
can be illumined at this point.
When presetting the Target Identification button to discriminate mode,it
indicates as the discrimination mode.
When turning on the unit,the DEPTH-SENS instructs the sensitivity cursor,
turn to the initial state, the three segments of the left is lighted,it means the
sensitivity is in the third level. Press the "SENSTIVITY" "+" key,the detector
sounds four tones,the four segments of the DEPTH-SENS are all lighted, it
means the sensitivity is in the fourth level,that is the most advanced level.
Press the "SENSTIVITY" "-" keys,the tones of the detector are reduced one
time,and the segments of lighted are also reduced one section, it means the
sensitivity is reduces a level.
When searching,the DEPTH-SENS directs the target depth. The first
segment that is also the "0" segment illuminated and flickered,it indicates the
metal target is near the ground. The fourth segment that is the "6" segment
illuminated and flickered, it indicates the target is at about the 6 inches
position. Of course, It only shows the relative depth of the metal objects,
rather than the precise depth.
When it find the targets, The TARGET ID and DEPTH ID will flicker about 5
seconds, and then the cursor of the discriminate mode and the sensitivity
instruction will come back to the pre-set position,and will remain unchanged
until find the metal targets next time.
The low battery indication cursor
When the cursor on the left of the LCD is lighted,which indicates you it’s the
time to change the battery.
2，Three kinds of sounds
Press the “POWER ON” button, the detector will sound the three frequencies of
“low,medium,high” tones,the sensitivity ruler mark illumines three segments,which
means the sensitivity is in the third level. The Target Indication cursor isn’t
illuminated, which means the discrimination mode is set in the ALL METAL state.
When sweeping the four types of metals 2 inches above the top of search coil,the
detector will respond with different sound.,the target identification on LCD will be
illumined correspondingly.
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Target categories Indication sound TARGET ID indication
Iron nail Low tone IRON is illumined and flickered
about 5 seconds
Nickel,coins Medium tone
MID RANGE is illumined and
flickered about 5 seconds
25 cents High tone SILVER is illumined and flickered
about 5 seconds
3，Four kinds of discrimination modes
The detector is automatically set to the ALL METAL mode,when it’s powered
on,n amely it will respond to all types of metals. Press the “MODE” button,it will
eliminate the metals that you don’t want, press“MODE”button for several times,the
operator can choose from the four kinds of different discrimination settings.
Four kinds of modes Indication sound TARGET ID
indication The Eliminated metals
Initial state High tone Not illumined Can’t eliminate any
metals
press“MODE”button Low tone Iron is illumined Iron is eliminated
press“MODE” button
again Medium tone Mid range is illumined Nickel, Coins
press“MODE”button
again
Low tone and
medium tone by
turns
Iron and Mid
range are all
illumined
Iron, nickel, coins
are eliminated at the
same time
press“MODE” button
again High tone Not illumined Can’t eliminate any
metals and in the
ALL METAL state
Note:the times of the detector sounding the tone is the same with the sensitivity
level,which means when the sensitivity is at the fourth level,the detector will sound
four times.
Quick Start
1. Lay the metal detector properly
In order to avoid the metals influencing the detector, be sure to lay the the
metal detector properly. Place the detector on a wooden or plastic table. Let the
search coil exceed the table edge about more than 15cm, and adjust the search
coil so that the flat part points upwards.(Fig 9)
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Fig. 9
Please take off any watches, rings or other metal objects on your hand or arm.
Keep the detector away from any walls, floors and other metal objects.
Be sure to keep the detector away from the light, TV, computer or mobile
phones, which can cause electro-magnetic interference.
3．Turn on
Press the POWER ON button,the detector will sound the three frequencies of
low, medium and high tones,and together with three “ID” tones. The liquid
crystal pattern scans once, and then shows the discrimination mode and the
sensitivity.
TARGET ID——Not illumined It means it’s in the ALL METAL state.
DEPTH –SENS——illumines the third segment It means the sensitivity is at the
third level.
Note:if you don’t change the discriminate mode and the sensitivity level, the
LCD will hold the line. When the detector finds the metal,the TARGET ID will
indicate the kind of the metal,and the DEPTH-SENS will show the approximate depth
of the target objects.After flicking about 5 seconds,the LCD comes back to the setting
state.
4．All metals
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When turning on the unit, the detector is at the ALL METAL state,sweep the
metal sample above the center of the search coil (5cm)
Operate
Indicatio
n tone
LCD
TARGET
ID
LCD
DEPTH-
SENS Chart Note
Turn on Turn on
indicatio
n
Nothing
displayed
SENS-3
is illuminated
Sweep
iron
nail
a low
tone
The IRON
is
illuminate
d and
flicker
DEPTH-2
is illuminated
and flickers
Nickel,
coins
a
medium
tone
MID
RANGE
is
illuminate
d and
flickers
DEPTH-2
is illuminated
and flickers
Silver a high
tone
SILVER
is
illuminate
d and
flicker
DEPTH-2
is illuminated
and flicker
If the height of
the metal
sample from
the search coil
is changed, the
lighted
segments of the
LCD height
mark cursor
will be changed
correspondingl
y.
5．Eliminate iron
Operate Indicatio
n tone LCD
TARGET ID LCD DEPTH-SENS Chart Note
Press
MODE
button
Three
low
tones
IRON
SENS-3 is illuminated
Press the
MODE
button,the
times of
the
detector
dh
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Sweep
iron nail
Silent IRON flickers once
SENS-3
flicker sonce
Nickel,
coins
A
medium
tone
MID
RANGE is
illuminated
and flicker
DEPTH-2
is illuminated
and flickers
Silver A high
tone
SILVER
is
illuminated
and flicker
DEPTH-2
is illuminated
and flickers
6. Eliminate the medium conductivity metals
Operate Indication
tone
LCD
TARGET
ID
LCD
DEPTH-SENS Chart Note
Press
MODE
button
Three
medium
tones
MID
RANGE is
illuminated
SENS-3 is
illuminated
Sweep
iron nail A low tone
IRON
is
illuminated
and flickers
DEPTH-2
is illuminated
and flickers
Nickel,
coins Silent
MID
RANGEis
flickers
once
SENS-3
flickers once
Silver A high
tone
SILVER
is
illuminated
and flickers
DEPTH-2
is illuminated
and flickers
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7. Eliminate the iron and the medium conductivity metals at the
same time
Operate Indicatio
n tone
LCD
TARGET
ID
LCD
DEPTH-
SENS Chart Note
Press
MODE
button
It
responds
with
low,
medium
tone
alternate
ly,and
repeats
three
times
IRON、
MID
RANGE
is
illuminated
at the same
time
SENS-3
is illuminated
Nickel,
Coins Silent
IRON、
MID
RANGE
flicker
sonce
SENS-3
flickers once
Silver A high
tone
SILVE
R
is
illuminated
and flickers
DEPTH-2
is illuminated
and flickers
Pres the
MODE
button
again,it
comes
back to
ALL
METAL
mode
Operating the detector outdoors
1.Turn on
Press the “power on” button, the cursors on the LCD screen will be illuminated
one by one, and the detector will sound the three frequency tone of low,medium and
high, the detector is now ready. It’s the Initial State：
TARGET ID cursor is not lit,which means it’s in the ALL METAL state.
DEPTH-SENS 3 segments are lit,which means the sensitivity is at the third level.
2.Choose the sensitivity
Press the “SENSTIVITY ” “+”or “-” button, you can regulate the sensitivity.
Generally speaking,we set it to the highest level,if there is much electromagnetic
interference around or the soil is highly mineralized, the detector will have an erratic
tone, and if this happens, you should reduce the detector’s sensitivity.
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Note: If you detect with your more than one metal detector, please keep at least
5m apart.
3.Choose the discrimination modes
Press the Mode button, you can choose from the four discrimination modes,if
you are not interested in iron targets, you can choose to reject the iron,if the pull-tabs
off cans disturb your detection, you can choose to reject the pull-tabs. Please be
sure,not to reject the noble metal such as gold.
Generally, you can choose ALL METAL mode, which is used to detect all
metals, when you find a metal target, adjust the different discrimination mode to
determine the kind of the object. This would help you to determine whether it is worth
digging.
Note:Once you’ve set the sensitivity and discrimination mode, if you don’t reset
the settings, it will not change until you turn the unit OFF,. Every time the detector
find the target object,the TARGET ID will show the target category, while the
DEPTH-SENS will show the approximate depth of the target object,and will flicker
for about 5 seconds, the LCD will come back to the state which you have set.
4.Motion detect
When detecting,slowly sweep the search coil, let the search coil parallel with and
about 1-5cm)above the surface. Never sweep the search coil as if it were a
pendulum.(Fig 10、11)
Fig. 10
Fig. 11
Most worthwhile metal objects will bring a repeatable tone, if the signal can’t be
repeated it is more than likely trash metals. When a clear sound is heard to show you
the buried target objects, you can get the approximate target type and depth on the
LCD screen,and you can also try sweeping the detected targets above the search coil
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quickly,to help you get the more steady signal.
5.Pinpoint the target
When there is a clear signal to show you the location of the buried target
objects,you can “X” the target at different angles to zero on the exact spot on the
ground where the “beep” occurs. You can do a "X" scan in this district, generally the
bottom of the intersection point is the target object.(Fig 12)
Fig.12
6.Power off prompt
If you forget to power off the metal detector after use, the metal detector will
emit three short beeps every 10 minutes, and start the automatic scanning procedure
as power on to remind you power off the unit in time.
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