6697H-All_Manuals 1/31/13 11:04 AM Page 13
Note: Take the batteries out when the unit is not in use for a
long time.
4. Detecting Methods
1. This unit can detect a red rotating laser beam.
2. Press the Power Key once , the middle signal indicator will
quickly turn red first and then turns green. It will beep once
to indicate that the instrument is ON.
While detecting, the signal indicators show as follows:
The lower red
LED is on
Laser Line
The laser beam is
up
Sound: Single short
sound
Note:
1. While detecting a horizontal laser beam, it is necessary to
have the horizontal bubble vial centered, as the tilt of the
detector will influence its receiving accuracy.
©2013 Johnson Level & Tool - Rev. 2
The upper red
The middle LED
LED is on
is orange
Laser Line
Laser Line
The laser beam is
The laser beam is close
down
to center
Sound: Single short
Sound: Single short
sound
sound
All LEDs
The middle LED
are off
is green
Laser Line
The laser beam is
No laser
exactly to center
beam is
detected
Sound: Solid sound
Sound:
No Sound
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