GSSI SIR 20, User Manual

Page: 61 / 100

Geophysical Survey Systems, Inc. SIR® 20
Manual
MN92-078 Rev F 55
After Collection
The depth scale can be calibrated using a known target. If the depth of a visible target is known (slab
thickness, rebar depth):
If setting depth on file being collected:
1
Close file .
2
Press (F8).
3
Place cursor over the exact point with known
depth and click left mouse button.
4
A crosshair is inserted on the position selected.
5
Enter known target depth in the prompt window.
The depth scale will be recalculated and the screen
display scale adjusted.
6
Depth can be set in Playback mode using the same
steps.
Playback
You can also Playback data that you have previous collected and saved. Files can be recalled using the
Playback button (F6) on the opening page of StructureScan Linescan. You will see a listing of all of
your saved data files.
Known target
Crosshair over target
with known depth
Figure 56: Set Depth.
Scroll
Lft rt
Open File
F2
Open 2
nd
File
F3
Zoom
F6
Contrast
F5
Colors
F4
Set
Depth
File Info
F10
Print
F11
Exit
ESC
During Playback
Figure 57: Playback Options.