Care And Maintenance - Velleman CS150N Mode D'emploi

6.8 Pinpointing a target
Accurately pinpointing a target makes digging it up easier.
Accurate pinpointing takes practice, and we suggest you practice finding and digging up small metal objects on
your own property before you search other locations.
Sometimes, targets are difficult to accurately locate due to the sweep direction. Try changing your sweep
direction to pinpoint a target.
Follow these steps to pinpoint a target.
1. When the detector detects a buried target, continue sweeping the search coil over the target in a narrowing
side-to-side motion.
2. Make a visual note of the exact spot on the ground where the detector beeps.
3. Stop the search coil directly over this spot on the ground. Then move the search coil straight forward away
from you and straight back toward you a couple of times.
Make a visual note of the exact spot on the ground where the detector beeps.
4. Repeat Steps 1-3 at a right-angle to the original search line, making an "X" pattern. The target will be
directly below the "X" at the point of the loudest response [U].
Notes:
 If trash in an area is so heavy that you get false signals, slow your sweep and use shorter sweeps.
 Recently buried coins might not respond the same as coins buried for a long period of time because of
oxidation.
 Some nails, nuts, bolts, and other iron objects (such as old bottle caps) oxidise and create a "halo" effect. A
halo effect is caused by a mixture of natural elements in the ground and the oxidation created by different
metals. Because of the metal mixtures, target signals might not be in a "fixed" position. This effect makes
these objects very hard to detect accurately. (See "Fine-Tuning the Detector").
7.

Care and maintenance

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.
 Modifying or tampering with the detector's internal parts can cause a malfunction and might invalidate its
warranty.
 The search coil supplied with the detector is waterproof and can be submerged in either fresh or
salt water. However, do not let water enter the detector's control housing. After using the search
coil in salt water, rinse it with fresh water to prevent corrosion of the metal parts.
8. Troubleshooting
If your detector is not working as it should, follow these suggestions to see if you can eliminate the problem.
PROBLEM
The detector displays or sounds
false signals
The display does not show the
correct metal type when the
detector finds a target or the
detector sounds more than one
type of tone when it finds a
target.
V. 02 – 08/11/2017
CS150N
You might be sweeping the detector's search coil too fast or at the wrong
angle. Sweep the search coil more slowly and hold the detector correctly.
See "Testing and Using the Detector" and "Pinpointing a Target".
The detector might sound a false signal if it detects heavily oxidised metals.
Try pinpointing the target from several different angles (see "Pinpointing a
Target"). If the detector does not display and sound the same signal each
time, the target is probably heavily oxidised metal.
There might be more than one target in the area you are searching.
The target might be a type of metal that the detector does not recognise.
If the target is heavily oxidised, the detector might not display the correct
metal type. This is not a malfunction.
8
SUGGESTION
©Velleman nv