Leica VT1200, Instructions For Use Manual

Page: 42 / 64

42
Version 1.8, Revision L
Operating the VibroCheck
6
4. The user presses the RUN/STOP key: First, the blade moves forward (into the position exactly
above the VibroCheck), then the VC moves into a position in which the blade partially covers the
light barrier. (If the VC does not receive any signal via the light barrier, the operation is canceled
and DOWN is enabled.) LED on VC flashes green – RUN/STOP flashes yellow.
When LED on VC is green and LED in RUN/STOP is yellow, the blade starts to vibrate with the
amplitude set. Speed = 0, amplitude can be changed at any time.
Fig. 22
1
2
Fig. 23
8
7
8
9
6
On the (5-digit) display, the deviation in height amplitude is shown in μm (e.g. 0.9 μm). This
value can be either positive or negative. The display can be switched using the μm/Σμm key.
Then a number appears (e.g. 0.4). This means clockwise rotation by a turn of 0.4 ( + see
(
→
Fig. 23- 9 ) – (Neg. operational sign means counterclockwise rotation – see (
→
Fig. 23- 9 ) .)
If the value is 0 , no improvement of the height amplitude is possible.
5. Press the STOP key. Using a size 3 Allen key, unscrew the clamping screw (
→
Fig. 23- 6 ) only
slightly, pull off the cap (
→
Fig. 23- 7 ) by pulling it upwards (keep it in a safe place) and turn the
adjusting screw (
→
Fig. 23- 8 ) by the corresponding value (here, a turn of 0.4) clockwise (in the
+ direction, ( → Fig. 23- 9 ) ) using a size 3 Allen key. Tighten the clamping screw ( → Fig. 23- 6 )
clockwise.
Note
If the display shows Σμm (
→
Fig. 22- 2 ) 0 (optimal) and the value in μm (
→
Fig. 22- 1 ) is unacceptably
high, the blade must be replaced.
6. Press the RUN key, check the value, repeat steps 5-7 if necessary.
7. If the measured value is accepted, press DOWN (flashes green). VC moves to lowest position –
blade is moved to the rear. LED on VC illuminates red again (LED on RUN/STOP is off).
8. The instrument now expects the VibroCheck to be removed. To do so, disconnect the USB plug
connection of the VC to the basic instrument and pull the VC off of the dovetail guide. LED in
DOWN key continues to flash – wait until LED in DOWN key goes out.
The normal operating status is now restored.