©2016 Johnson Level & Tool - Rev. 2 19
• When the detector displays like Fig. (A), move
the detector slightly downwards as indicated
by the arrow. When it displays like Fig. (B),
move it slightly upwards as indicated by the
arrow.
• When Fig. (C) is displayed, the detector is at the
right position.
• Tighten the clamp bolt and note the position
by the rabbet. This position will be the hori-
zontal reference in the coarse detection.
2. Fine detection
1. power symbol
2. fine detection symbol
• Press coarse/fine detection button. The detector
is ready for fine detection.
• Move the detector slightly up and down like the
coarse detection procedure.
• When the detector displays like Fig 6, it is at the
right position.
• Tighten the clamp bolt and note the position by
the rabbet. This position will be the horizontal refer-
ence in the fine detection.
(e) Volume Key
• If the detector is working in an area that makes it difficult to see the
display function, the sound function can be used instead.
• Press the sound function button. The sound symbol is displayed
which means it is ready for sound function. The detector then
sounds coarse/fine and on grade detection through sound (buzz)
signals.
Figure 6
1625i-English_Manuals 12/28/16 9:41 AM Page 19
To Next Page
Loading...
