Operation Manual for ZBL-R620/R630 Rebar Locator
When the rebar is detected by the probe, the system locks the thickness, in manual
mode, press
【
Save
】
key, save test result, and the save object code incremented by one.
In auto save mode, the save number automatically incremented by one.
When the probe is parallel to and directly above the rebar, and the probe and the rebar
have the same direction:
Press
【↑】
key to estimate the rebar diameter.
The screen displays the practical test rebar diameter and thickness.
Note: There is a black triangle symbol before the thickness value; it means the thickness
is not related with the pre-set diameter.
2) Profile Scan
Press
【
Save
】
key, access “waiting for save scan result” status. There is a black
square on the top left of the screen, it indicates the location of the probe. Move the
probe evenly and smoothly, when the probe is closer to the rebar, the signal strength
bar is higher, the thickness is smaller; A “beep” sound means the probe have already
crossed the centre of the rebar, and a black dot will appear to indicate the location of
the rebar. The concrete cover thickness and the rebar coordinate (the distance
between the rebar and the starting point, unit: cm) will be displayed above the black
dot. The instrument automatically saves the test data and the image.
Press
【
Back
】
key, return to parameter setting interface.
Press
【
Menu
】
key, access the main menu interface.
Note: The maximum distance displayed on every page is 1.2m, if the test results exceed
this length the screen will automatically turn to the next page, and the page number is
increased by one.
3) Grid Scan
Select the direction to start the scan,
Press
【
Save
】
key, access “waiting for save scan result” status.
Press
【
Back
】
key, return to parameter setting interface.
When the scan of the first direction is completed, the user may scan another direction.
Press
【
Save
】
key, stop the current scan of the first direction.
Press
【↑】
key, change the scan direction.
Repeat the operation above, complete scan of another direction. A X, Y-2D scan is
completed.
2.6.3 Second scan
A Second scan is scanning several test lines along X’s direction (X2, X3, X4,…, Xn)
or Y’s direction (Y2, Y3, Y4,.…, Yn) based on an initial first scan(Fig. 2.9). The second
scan produces the real distribution of rebars, the test data is then transferred to computer
where Windows analysis software will display rebar distribution image of rebar according
to test data. (Fig. 2.10)
Principles of second scan operation:
The beginning of the first and second scan should lie on the same line perpendicular
to the scanning direction.
