3.5.7.16Moveable range and limitation by optional detectors
(1)Movable range of the specimen stage for various specimen size The movable range is limited when observing large size specimens.
Stage motion is limited to inside of movable range automatically by computer. The limit value is calculated using the size information set on the Set Sample Size/Detector dialog window
For small size specimen, X and Y limitation is specified so as the movable range covers just the size of specimen.
For large size specimen, the movable range is limited with in safety area.
When optional detectors are inserted to its operating position, the safety area will be limited to narrow range.
(2) Movable range
Fig
Fig
These are for the case where no optional detectors are in use.
Refer to operation manuals of optional detectors for limitation to the detectors.
(3) Limitation and evacuation when a optional detector is inserted
Some optional detectors have sensor switches and automatically sensed when it is inserted. For detectors not having such sensor switches, it is necessary to set detector in use correctly in the Set Sample Size/Detector dialog window. If a detector having sensor switch is inserted when present stage position is out of allowable area, stage will evacuate to safe position as follows.
No limitation required
Allowable range of Z axis is 7mm or longer. X, Y and T axes are limited also. Refer to instruction manual for the detector. When you insert the detectors having sensor switches to its operation position, the stage will move automatically as follows.
(a)Turns T axis to 0.
(b)Moves Z axis to 8 mm if it is less than 7 mm.
(c)Moves X axis to 35mm (mechanical coordinate) if the present X position is out of its
allowable range for the specimen size and detector combination. It will happen only when specimen size is larger than 125mm diameter.
Allowable range of Z axis is 7 mm or longer. X, Y and T axes are limited also. Refer to instruction manual for the detector.
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