Johnson Level & Tool Mfg. 40-6550 User Manual
Page 17

©2005 Johnson Level & Tool
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3) Detecting vertical laser level signals
• Place the unit in a horizontal position.
• Make sure the receiving window (on front of detector) is facing
the laser level unit and is receiving the laser signal.
- If the LCD shows a “left” arrow and emits rapid
short sounds, this indicates that the laser level
signal is located to the right of the detector (Fig. 14).
- If the LCD shows a “right” arrow and emits
slow short sounds, this indicates that the laser
level signal is located to the left of the detector
(Fig. 15).
- If the LCD show the “center” mark and emits a
continuous sound, this indicates that the laser
level signal is located in the center position on
the detector.
(Fig. 16-1) LCD indicating center position
of coarse detection
(Fig. 16-2) LCD indicating center position of fine
detection
4) When you are finished using the detector, press the power key to
turn the unit off.
(c) Using the Sound Function
With the detector turned ON, press the
sound switch to alternate between
sound-on and sound-off.
Note: The sound indicator will also turn on and off in the
LCD screen (Fig. 17, 18).
Sound
Silence
Fig. 17 Fig. 18
Fig. 14
Fig. 15
Fig. 16-1
Fig. 16-2
40-6540_6550 English 6/28/05 9:44 AM Page 17