Johnson Level & Tool 40-6560 Instruction Manual page 14

40-6560_6570 English
(b) General Detector Usage
Note: Always keep the instrument stable
when detecting.
1) Press the power key to turn the unit
on. The LCD display will illuminate all
the indicator segments for 0.5 second
(Fig. 6). When the indicator segments
are no longer illuminated, the detector
is ready for use. Note: The LCD display will still have the power,
detection and sound indicators illuminated (Fig. 7).
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
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Fig. 8 Fig. 9
Page 14
Fig. 6 Fig. 7
Fig. 10-1 Fig. 10-2
©2005 Johnson Level & Tool