Line and probe location in “Ferrolux” mode
48
5.2.2
Controlling sensitivity
In order to always be able to display the received signals in an optimum way in the bar
chart depending on the strength, the receiver can operate in different sensitivity ranges.
The currently set sensitivity can be read in a bar directly beneath the bar chart.
High sensitivity setting
with low signal
levels
Low sensitivity setting
with high signal
levels
The receiver operates with a high sensitivity setting immediately after switching on. The
sensitivity drops automatically in accordance with the recorded signal level so much that
the previously measured maximum level corresponds to the maximum deflection of the
bar chart.
On the other hand, an automatic sensitivity increase does not take place, so that the
levels always remain comparable to the previous maximum level.
However, the user can adjust the sensitivity using the knob at any time while he is in the
measurement screen
.
In this way, the sensitivity can at least be increased again manually if the signal level
drops significantly during the course of location / tracing for some reason or other and
only extremely weak deflections take place, even at the signal maximum.
Alternatively, a reset of the sensitivity setting can be forced by pressing the knob twice,
after which the receiver adapts itself to the currently measured level and then reduces
the sensitivity as the level increases.
If the sensitivity range under the bar chart is displayed in red, a very high sensitivity is
set due to a weak signal level. In this sensitivity range, a reliable location of the
searched object may prove difficult.
Increase sensitivity
Reducing the sensitivity
2x
Adjusting the sensitivity to the
current signal level
