Velleman CS150N - Manual (Page 5)

CS150N
06/09/2011 © Velleman nv 5
6. Place two 9-volt batteries into the battery compartment on top of the ribbons, matching the
polarity symbols (+ and -) marked.
7. Replace the left battery compartment cover.
Caution:
• Always remove old or weak batteries. They can leak chemicals that can destroy electronic parts.
• If you do not plan on using the detector for a week or more, remove the batteries.
• Dispose of old batteries promptly and properly.
You can extend battery life by using earphones, which require less power than the speaker.
c. Testing the Batteries
If the detector does not turn on, has weak volume, will not tune properly, has erratic operation or
drifts,test the battery power.
• Set MODE to VLF (very low frequency). To test the batteries in the left battery compartment, set
BATT TEST to B1. To test the batteries in the right battery compartment, set BATT TEST to B2
[J]. If the pointer on the VU-meter is between 3 and 5 (green area), the batteries are OK. If the
pointer is not in the green area, replace them.
d. Adjusting the Meter
• Set MODE to OFF, use a screwdriver to adjust the pointer to line up with 0 on the scale [K, L].
e. Using Earphones
Using stereo earphones (not supplied) allows you to listen privately. It also saves battery power and
eases identifying subtle sound changes for better results.
• To connect headphones to the detector, insert the earphones' 1/8-inch plug into the HEAPHONE
jack [M].
• Control the volume with volume knob [M].
Note: The detector's internal speaker disconnects when you connect earphones.
f. Listening Safely
To protect your hearing, follow these guidelines when you use earphones.
• Set the volume to the lowest setting before you begin. Adjust the volume to a comfortable level
while listening.
• Do not listen at very high volume levels. Extended high-volume listening can lead to permanent
loss of hearing.
• 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.
g. Traffic Safety
Do not wear earphones while operating your detector near high-traffic areas. Even though some
earphones are designed to let you hear outside noise when listening at normal volume levels, they
still can present a traffic hazard.
6. Operation
Your Velleman metal detector distinguishes between ferrous (contain iron) and non-ferrous (do not)
metals. When the detector senses a metallic object, the meter reading changes, the NON-FERROUS
or FERROUS indicator turns on or off, and the detector sounds one of three tones. The higher the
tone pitch, the stronger the detection.
a. Preparing the detector
1. Set BATT TEST to OPERATE.
2. Hold the detector in a comfortable position, then rotate MODE to the desired position. Set it to
VLF to test battery power and adjust TUNE and GROUND. (See "Fine-tuning the detector" and
"Adjusting GROUND"). Set it to TR1 to detect extreme differences in metals, such as between in
metals, such as between iron and gold. The difference between iron and gold shows on the meter
(iron in the ferrous section, gold in the non-ferrous section). Set it to TR2 to detect finer
distinctions between metals, for example between aluminium and gold (see "Adjusting
DISCRIMINATION") [N].
Follow these steps to set TUNE [O]:
1. Rotate VOLUME to the 10 o'clock position.
2. Set MODE to VLF.
3. Set DISCRIMINATION, GROUND and SENSITIVITY to their midpoint.
4. Hold the search coil about 1 foot (30cm) away from the ground and any metal object. While
pressing the red button on the handle, slowly position TUNE until the pointer on the vu-meter
rests at 0. Release the red button.
As you search, you can fine-tune the detector using the other controls (see "Fine-Tuning the
Detector")