Leica EM TXP, Руководство по эксплуатации

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6.4 Count down setting
Press COUNT DOWN button once the LED starts blinking and DIST is displayed.
Use + or - button to set the distance to count down, it is displayed instead of the
advance indication (lower right corner). Press COUNT DOWN again to store (LED is
constantly illuminated).
Press the COUNT DOWN button twice TIME is displayed and a time count down can
be set using the + or - button. This is useful e.g. for polishing with neoprene cloth
without an advance has to be performed. The pressure can be set during the
polishing process using the feed hand wheel. Activate force information by pressing
the F button.
After the START/AUTO button is pressed, the LED in the AUTO field goes on and the
instrument starts the count down procedure.
6.5 Step size setting
During processing the advance of the spindle can be
performed manually using the feed hand wheel (2) or
during the auto processing mode automatically. The step
size can be selected using the STEP SIZE button toggling
from 100µm to 0.5µm. Each click stop of the feed hand
wheel or each cycle of the auto E-W movement
corresponds to the selected size.
Select a step size of 1µm or 0.5µm for the polishing process.
During count down toggling through the step size depends on the remaining
distance e.g. for 90µ remaining distance toggling can only be done between
and 0.5mm
6.6 Force limit setting
While using the auto E-W movement (if lever 7.1. is pulled out) or drilling (set SAW
speed to zero when lever is in) the instrument will perform an advance (according the
selected step size) on each cycle which could increase the pressure on the sample.
Because the polishing foil may not remove the sample material on each cycle
according the step size. In order to avoid sample damage a force limit can be set. In
case of distance count down and continuous approach the
instrument will only perform the advance if the force value is
below the limit value. The limit depends on the sample material
and the polishing foil which is in use.
Press F button longer than one second until the LED starts
blinking. Use the + or - button to set the value which is
displayed beneath the triangle. (upper right corner). Press F
again to store (LED is constantly illuminated). To activate the
force regulation just press F button less than one second.
The limit can also be changed during the polishing process by
pressing F button longer than one second.
10µm, 1µm
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