Velleman CS4MX-I - Manual (Page 5)

1) On Off/Sensitivity control.
Rotary control switches the detector on/off and adjusts the sensitivity. Ground containing
mineralisation and some beach situations may cause instability or false signals requiring
a reduction of the sensitivity level.
2) Ground Level control.
Start off with this set to AUTO. Extra sensitivity can be achieved on consistent ground
by adjusting this conrol manually in conjunction with the sensitivity control (see section
‘Detecting with the CS4MX’).
3) Pinpoint/ Discrimination 1/ Discrimination 2 switch.
The ‘motion’ aspect of the CS4MX is switched off whilst the pin-point mode is selected
(switch in up position). In pin-point mode the search-head can be held still to determine
the precise target position. Pinpoint mode operates in ‘All Metal’, ie. whatever level
of discrimination you have chosen will be switched off while the pin-point button is
depressed. This is a useful facility which allows you to trace around the edges of a
signal to identify large pieces of iron. (Note: very large pieces of iron, such as discarded
agricultural machinery and iron stakes tend to give positive signals even when the
detector is set to high discrimination settings). Once the pinpoint switch is released the
detector returns to motion mode/discrimination level 1.
Disc 1 or Discrimination 1 (centre position on the switch) is the normal search mode.
The detector will ignore some signals depending on the setting of the DISC 1 control.
Disc 2 or Discrimination 2 (switch position held down) is a further discrimination mode.
The detector will ignore some signals depending on the setting of the DISC 2 control.
4) All Metal/ Discrimination Level control 1 - DISC 1.
Set to ‘ALL METAL’ there is no discrimination, ie. all metals are detected. Set within 1-4
on the scale, signals from most small iron rubbish are ignored, ie there is no audio signal.
The discrimination level can be increased to 4 -10 on the scale so that the signals from
more categories of metal object are ignored.’ (see ‘Notes on Sensitivity, Ground Effect and
Discrimination’).
5) Discrimination Level control 2 - DISC 2.
Discrimination 2, like Discrimination 1, controls what signals are ignored. A typical setting
for DISC 2 is one or two graduations above DISC 1 so the quality of a target can be
assessed before digging it up.
6) Control box mounting clip.
For ultimate lightweight metal detecting the CS4MX control box can be removed and
fitted to a belt around the body. This leaves only the search-head on the stem which
reduces fatigue on the arm.
7) Loudspeaker (and battery condition indicator).
The presence of metal is indicated by a short tone from the loudspeaker as the search-
head is passed over a target. A distinct step change in the pitch of the audio signal
indicates that the batteries should be changed.
The CS4MX Features and what they do
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CS 4MX