button on laser's keypad (bottom left hand side) & the green LED illuminates.
Using the up & down Arrow buttons, set the % slope (fall) required - as
measured on your staff. The same buttons can be found on the Remote
Control.
To return to Auto level, switch the Manual button to OFF (green LED turns
off). The Laser will wait to find true level, then automatically restart, self-
levelled.
Setting both X & Y axis slope (dual grade) -
Proceed as above, but use all four arrow buttons - as required.
Automatic Drift System (ADS):
Operated via bottom, right-hand yellow button, showing a "picture of a tilted
instrument".
Once the FRE-301G is ON and rotating in the auto (self) levelled mode, the
automatic drift system can be activated. Press the button & the green LED will
flash
continually.
ADS is now ON.
If the Laser is knocked or caught by a gust of wind for example, the laser
head will stop rotating and the green
ADS
LED will flash quickly in alarm
condition.Check all is OK; press the ADS button again & the laser will reset to
AUTO level.
IMPORTANT NOTE: The ADS function cannot be set when Grading.
Remote Control & Laser Detector:
(Remote control is pictured on the left)
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