Service
107
Correct Wrong
Fig. 38: IR sources in their housing
If the position of a source is wrong, the radiation reaching the IR sensor is lower
than when the source is in the right position. It may happen that after transportation
due to a strong shock that the base lines are not in the right level due to the
sources being not in the right position any more. For correct base lines see chapter
“Infrared cell adjustments”.
(Take care in case of previous IR cell models having a base line around zero
volts.)
For correcting the position of bent IR sources use a thin forceps or carefully push
them to the right central position by using a thin screw driver. Take care not to
bend the wires too far. They are quite hard so that when bending back and forth
they may break.
In case of changing a source, the wires must be very properly soldered because
the resistance of a source is below one Ohm.
All IR sources for all available cells in a module are connected in series.
For adjusting the IR source voltage see chapter IR-source voltage setting.
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