IS 12 / IGA 12 Manual Instrument Settings • 25
The scanning length increases with increasing measuring distance. An overview of the scanning
length at the different distances of the optics is shown in the table.
4.4.1 Adjustments
The scanning amplitude is adjustable with the scanning
angle (0 to 4°) and when the scanning frequency is
between 4 and 10 Hz.
On the left side of the pyrometer is a cover. Two adjusting
potentiometers are under this cover, labeled with an A for
amplitude and an F for frequency. For adjustments, a small
screw driver is necessary. With the laser targeting light, the
adjustments can be controlled.
Note: Please make sure that the pyrometer will not be contaminated while the cover is
off.
The potentiometers can be turned 25 revolutions from
min to max. To switch off the scanning mirror, the
amplitude potentiometer has to be turned until the
laser targeting light does not move. Then the measuring
spot is centered. The speed of the scanning can be
adjusted with the frequency potentiometer, the current
speed can be watched by the speed of the moving laser
spot.
Note: The potentiometer has no mechanical stop position. Turning the potentiometer
to the left decreases the values, turning right the values are increasing.
After making the required adjustments, ensure that you re-install the cover.
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