Care And Maintenance - Perel CMD01N Manual Del Usuario

3) Adjusting DISCRIMINATION
Discrimination is the detector's ability to differentiate between types of metal. The detector's
DISCRIMINATION setting determines whether the detector will distinguish between different types of
ferrous and non-ferrous metals.
If MODE is set to TR2, start with DISCRIMINATION set to mid-range. While you use the detector,
adjust DISCRIMINATION to the best position. As you set DISCRIMINATION higher, the detector
becomes more sensitive to the differences between large aluminium and gold pieces, for example, but
some small valuable pieces, such as coins and small rings, might be overlooked. As you set
DISCRIMINATION to higher levels, the detector first does not detect small pieces of silver paper, then
thick foil, and finally metal objects like pull tabs from aluminium cans.
Note: Each time you use the detector in a different area, you must adjust DISCRIMINATION. Each
search location presents new challenges.
6.6 False signals
Because your detector is extremely sensitive, trash-induced signals and other sources of interference might
cause signals that seem confusing. The key to handling these types of signals is to dig for only those targets
that emit a strong, repeatable signal. As you sweep the search coil back and forth over the ground, learn to
recognise the difference between signals that occur at random and signals that are stable and repeatable.
To reduce false signals when searching very trashy ground, only scan a small area at a time using slow, short
overlapping sweeps.
6.7 Detection hints
No detector is 100 percent accurate. Various conditions influence metal detection. The detector's reaction
depends on a number of things:
 The angle at which the object rests in the ground.
 The depth of the object.
 The amount of iron in the object.
 The size of the object.
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.
V. 02 – 23/06/2014
CMD01N
7 ©Velleman nv