5. Operation
Directional fixture for specimen clamps
In the quick clamping device of the directional specimen holder fixture, all specimen clamps available as optional accessories can be used (implemented).
The object orientation allows for simple position correction of the specimen surface when the specimen is clamped into place.
30 | 32 |
32
31
29
Fig. 17
Display of the zero position
For better display of the zero position, the orien- tation has two red indicators (32).
When both indicators are visible and both set- screws are in zero position at the same time (notch point, white marking on ""), the speci- men is in zero position.
When the large standard specimen clamp (50 x 55 mm) is used, the speci- men orientation of 8° in
The usable angle is only about 4° in this case.
The directional specimen holder fixture may be exchanged for a
Orienting the specimen
Specimen blocks must not be oriented during the retraction phase!
If a block is oriented during retraction, the block will advance by the retraction value PLUS the selected section thick- ness before the next section.
This may cause damage to both specimen and knife!
•Raise the object head to the upper end posi- tion and activate the handwheel lock.
•To release the clamp, turn the eccentric lever (29) forwards.
•Turn setscrew (30) to orient the specimen in
Each complete turn of the screw inclines the specimen by 2°. A total of 4 complete turns = 8° are possible in every direction. The accu- racy is approximately ± 0.5°.
For ease of estimation, there is a white marking on the handle and a notch point that is noticeable during turning.
•To lock the current orientation, turn the ec- centric lever (29) backwards.
28 | Instruction manual V 1.4 – 02/2007 |