Owner's manual

14
©2007 Johnson Level & Tool
2. Fine detection
1. power symbol
2. fine detection symbol
Press the coarse/fine detection button.
The detector is ready for fine detection.
Move the instrument up and down
like the coarse detection procedure.
When the instrument displays as shown in
the figure, it is level with the laser beam.
Tighten the clamp bolt and mark the
position of the object on the rabbet.
(e) Sound function
Press the horn button. The horn symbol is displayed and it is ready
for the sound function. The detector will then conduct up/down
detection through horn signals.
When the sound signal is a longer beep, move the instrument up.
When the instrument makes short beep, move it down.
When the instrument makes a continuous sound, it is level with
the laser beam.
If there is no sound heard, the instrument has not received the
laser rotational signal.
(f) Turn-off timer
The detector will automatically turn off if it has not received a laser
signal for 5 minutes
(g) Back light system
There is a back light at the right side of the display window. Press
the back light button which will illuminate the display window.