Johnson Level & Tool Mfg. 40-6550 User Manual

Page 16

2) Detecting horizontal laser level signals
• Place the unit in a vertical position (verify by checking the horizontal

vial bubble).

• 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 “down” arrow and emits rapid short sounds, this

indicates that the laser level signal is located below the detector (Fig. 8).

- If the LCD shows an “up” arrow and emits slow short sounds, this

indicates that the
laser level signal is
located above the
detector (Fig. 9).

- If the LCD shows 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. 10-1) LCD indicating center position of coarse detection
(Fig. 10-2) LCD indicating center position of fine detection

Note: As the laser signal gradually nears the center position on the
detector, the arrow displayed will decrease in length until just the
center position signal is displayed (Fig. 11, 12, 13-1, 13-2).

Fig. 11 Fig. 12

Fig. 13-1 Fig. 13-2

Fig. 8 Fig. 9

Fig. 10-1 Fig. 10-2

40-6540_6550 English 6/28/05 9:44 AM Page 16

This manual is related to the following products:

40-6540