Slope In Manual Mode; Mask Mode - THOMSON VISION 1N Instructions De Service

4. Slope in Manual Mode

To be able to set higher grades using a level table or to
record building-side specified grades, for example, you
must switch off the device's automatic system.
You do this by pressing the On/Off key for a long time
(approx. 5 sec.) Manual mode is shown on the display.
Now align the laser exactly to the target point using a
sighting telescope or the optical sight and enter the
grade:
1st key press: Slope symbol and Y is shown on the
Y
display.
Use the arrow keys to approach the slope.
You can set both PLUS and MINUS grades. While you
press the bottom arrow key, MINUS is shown on the
display. With the top (Plus) arrow key, there is no indi-
cation on the display.
Important: In manual mode, there is no automatic
laser self-levelling!

5. Mask Mode

In mask mode, you can limit the laser exit to a settable
range.
This is only possible with a rotating laser beam, i.e. not
in scanning mode.
By pressing the key three times you enlarge the masked
th
area up from 90 to 270°. With the 4 press you leave
the mask mode. The switched-off area is displayed
black. In the light area, the laser beam is still emitted.
Using the counterclockwise/clockwise rotation keys, you
can rotate the mask area in the desired direction.
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