JRC Handy Search NJJ-95B, Instruction Manual

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Figure 3-10 B-mode/BA-mode Display
3.3.2
Sensitivity switching
As sensitivity can be switched for the scan test results in the same way as during scanning,
scanning does not have to be performed again after changing sensitivity.
Sensitivity is displayed, for example, as "A shallow." "A" indicates the overall sensitivity; "shallow"
indicates sensitivity to depths.
There are five levels for overall sensitivity: "-2, -1, A, +1, +2." In general, use the unit in the "A"
setting. Use the +side to increase sensitivity and use the –side to reduce sensitivity.
There are two levels for depth sensitivity: "shallow and deep." Select "shallow" when the object to
be probed is at a depth less than 10 cm. Select "deep" when the object to be probed is at a depth
of 10 cm or more.
To change the sensitivity, press 3
GAIN
. The sensitivity is changed as follows:
A, shallow
→
+1, shallow
→
+2, shallow
→
-2, deep
→
-1, deep
→
A, deep
→
+1, deep
→
→
+2, deep
→
-2, shallow
→
-1, shallow
→
A, shallow
→
+1, shallow
→
Remarks
If sensitivity is changed when scanning is stopped and scanning is performed again, the new
sensitivity set while scanning was stopped will be used for scanning.
3.3.3
Cursor operation
Figure 3-11 shows sample display with cursor operation.
(1)
Cursor Display
If the cursor keys , ▼ are pushed after scanning is complete, a vertical cursor is displayed
on the 1 liquid crystal display screen.
The cursors on the screen move vertically when the
▲▼
keys are pressed, and horizontally
when the keys are pressed. The distance and depth at the intersecting point are displayed
in the upper area of the screen.
If the scan test data does not fit into the scan test screen, the vertical cursor disappears when it
reaches the right or left end of the screen, and the scroll mode is enabled to continuously display
the data stored in the memory.
(2)
Cursor Mark Display
With scanning stopped, if the vertical/horizontal cursor intersection point is moved to the
position of the rebar etc. and 10
MARK
is pushed, a cursor mark ( ▼ symbol and number) is
displayed at the cursor intersection point. The coordinates of the cursor mark are distance moved
and depth and are shown on the right side of the 1 liquid crystal display. Up to seven cursor
marks can be displayed.
To delete a cursor mark, move the cursor onto the cursor mark and press 10
MARK
.
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