JRC Handy Search NJJ-95B Instruction Manual page 47

(4) Target Preparation for Scanning
Using chalk (or similar) make markings on the concrete surface to indicate where to start
testing (starting line) and where to scan (scan test line).
Make
sure the start line and the scan test line are orthogonal.
(As necessary, in order to perform a retest, use and endpoint of the wall as a standard
for the start line and scan test line)
A scan test applicable set up example is shown in Fig. 3-6.
Object to be sense
tested
(Concrete etc.)
Scan test line 1
Scan test line 2
Scan test line 3
(Wall Surface)
Fig. 3-6 Scan test applicable setup example
- 35 -
Start line
1m
These should
orthogonal
Origin
(End of wall, power outlet etc.)
be