Ricomax GC-1065 User manual

OWNER’S MANUAL MODEL GC-1065
Please read before using this equipment
Metal Detector

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FEATURES
With your Metal Detector, you can hunt for coins, relics, jewelry, gold, and silver
just about anywhere. This metal detector is versatile and easy to use.
The detector’s features include:
Two Operation Modes: ALL METAL, DISC
ALL METAL—lets you search for all kinds of metal with auto ground balance and
high sensitivity. It’s the best operation mode.
DISC—discriminates what kind of metal being detected.
Volume—to adjust the volume level of speaker and headphone
Earphone Jack – lets you connect stereo earphones (not supplied) to the
detector in private.
View meter and Pointer – The meter pointer swings to the right if metal is
found.
Water proof Search Coil – lets you search for metal objects under shallow
water.
Note: The search coil is waterproof, but the control housing is not waterproof.
Adjustable Stem – lets you adjust the detector’s length for comfortable use.
Note: Your metal detector requires one 9V alkaline battery (not supplied).
PREPARATION
ASSEMBLING THE DETECTOR
Assembling the detector is easy and requires no special tools. Just follow these
steps.

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1.
Depress the spring clip in the middle stem
and insert it into the top stem(1) aligning
the clip with the hole.
2. Loosen the middle stem’s lock nut in
the direction of the arrow. Then
insert the lower stem (2) into the
middle stem. Turn the stem’s lock nut in
the reverse direction of the arrow to lock
it in place.
3.
Unscrew the bolt of the control box(3) and hitch the control box to the
top stem. Then, insert the bolt into the assembly hole on top stem and
tighten it with the box.
4.
Wind the cable around the stem. Insert
the search coil cable plug into the five
pin jack at the bottom of control box’s
housing.
5.
When you stand upright with the detector in your hand, the search coil
is level with and about 0.5~2 inches / 1~5cm above the ground. You
can lengthen or shorten the stem basing on your height. After figuring
out the suitable length, then tighten the lock nut.
Caution:
The search coil cable plug fits into the connector only one way. Do not
force the plug or you could damage it.
ADJUSTING THE SEARCH COIL
Loosen the knobs at the search coil’s end, then adjust the search coil to the

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desired angle. (The search coil should be parallel with the ground.) Tighten the
knobs just enough to keep the search coil from rotating or wobbling.
INSTALLING BATTERY
You need one 9V alkaline battery to power your detector.
Cautions:
Use only fresh battery of the required size and recommended type.
1. If the detector is on, turn the power off.
2. Press on the battery compartment cover and slide the cover off in
the direction of the arrow.
3. Connect the battery with the battery connector taking care of the
polarity. Then put the battery into the compartment.
4. Replace the cover.
Cautions:
Always remove old or weak battery; battery can leak chemicals
that can destroy electronic parts.
If you do not plan to use the detector for a week or more, remove
the battery.
Dispose of old battery promptly and properly.
You can extend battery life by using earphones, which require less power than
the built-in speakers.
USING EARPHONES
You can connect a pair of stereo earphones (not supplied) to the detector so
you can listen to it privately. Using earphones also saves battery power and
makes it easier to identify subtle changes in the sounds you hear, for better

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detection results.
To connect earphones to the detector, insert the earphones’ 3.5mm plug into
the EAR jack on the control box.
Note: The detector’s internal speaker disconnects when you connect
earphones.
LISTENING SAFELY
To protect your hearing, follow these guidelines when you use earphones.
Set the volume to the lowest setting before you begin listening.
After you begin listening, adjust the volume to a comfortable level.
Do not listen at extremely high volume levels. Extended high
volume listening can lead to permanent hearing loss.
Once you set the volume, do not increase it. Over time, your ears
adapt to the volume level, so a volume level that does not cause
discomfort might still damage your hearing.
Traffic Safety
Do not wear earphones while operating your detector near high-traffic areas.
Even though some earphones are designed to let you hear some outside
sounds when listening at normal volume levels, they still can present a traffic
hazard.
FUNCTIONS AND INDICATORS
1. A QUICK LOOK AT THE DETECTOR
a. DISC—Rotate the control clockwise away from ALL METAL to get DISC mode.
The DISC mode comes with auto ground balance. Rotate the control slowly

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and clockwise to eliminate different trash objects.
Rotate the control counter clockwise to the end to get ALL METAL
mode. All METAL also comes with auto ground balance. It’s used to
find not only ferrous metal, but also non-ferrous one (see more details
below).
b. VOLUME—Rotate the control clockwise to power on the unit. Rotate
it fully counter clockwise to power off the unit.
c. SENS—Rotate the control clockwise to get higher sensitivity. Rotating
it counter clockwise to decrease it.
d. LOW BAT—Low battery indicator. When LOW BAT indicator lights,
user should replace the batteries at once.
e. EAR—It’s a 3.5mm headphone jack for connecting headphones.
f. View meter—When unit finds any metal target , the meter pointer
swings to the right.
TESTING AND USING THE DECTECTOR
The metal detector has two operation modes: ALL METAL & DISC. All metal is
used to find all kinds of metal targets. DISC is used to discriminate the metal
type.
In general case, user firstly sets the operation mode to ALL METAL, DISC to
counter clockwise end, SENS to high position. Then hold the search coil parallel
with the ground about 1~5cm above the surface. Sweep the search coil from
side to side in an arc line of 7cm motion.
When the detector detects a buried target, it sounds a tone. User can make a
visual note of exact spot on the ground where the detector beeps.
Then stop the search coil directly over this point on the ground. Move the
search coil straight forward away from you and straight back towards you a
couple of times. Meantime slowly rotate the DISC control clockwise away from
ALL METAL until the unit does not sound or sounds short tone. You can identify
what kind of metal is rejected according to the setting position of DISC.
A reference for you to know what kind of metal is rejected depending on the

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DISC setting.
Setting of DISC Metal Rejected.
Near 11:00 Iron
Near 12:00 Nickel coin(5¢), pull tab
Near 13:00 Zinc coin(1¢ 87 version)
Near 15:00 Copper coin (1¢ 76 version)
When the DISC control is set to the clockwise end most of metal is rejected,
except silver(25¢,50¢ and 1$).
Factors That Affect The Detecting
It’s difficult to have an accurate detecting result. It needs practice to get better
detection results. Sometimes the detecting may be restricted by some factors.
If there are interference from other instruments or electrical cable or TV or radio
in your searching area, lower the sensitivity, or to change the current searching
area.
When searching in highly mineralized area, the unit will sound even if there’s no
metal. In this case, you can lower the sensitivity and increase the height between
the search coil and the ground until the false signal disappears. If necessary, reset
the DISC.
When searching in trash area, it’s better to set the DISC to 11:00 position, so that
the unit can notch most of invaluable metals such as nails and small
trashy iron.
Move away any metal digging tool when searching.
Sensitivity level is generally in contradiction with that of the Discrimination. The
higher the sensitivity level is, the worse discrimination will be. But you can lower
the sensitivity to have better discrimination.

CARE AND MAINTENANCE
Your metal detector is an example of superior design and craftsmanship. The
following suggestions will help you care for your metal detector so you can

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enjoy it for years.
Handle the detector gently and carefully. Dropping it can
damage circuit boards and cases and can cause the
detector to work improperly.
Use the detector only in normal temperature environments.
Temperature extremes can shorten the life of electronic
devices, damage the cases of the detector.
Keep the detector away from dust and dirt, which can cause
premature wear of parts.
Wipe the detector with a damp cloth occasionally to keep
it looking new. Do not use harsh chemicals, cleaning
solvents, or strong detergents to clean the detector.
If you have any question about this product,
please contact customer service via email: [e-mail]