User Manual

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8 Specification
8.1 Handy Search NJJ-105
Table 8-1 Specification of NJJ-105
item Functions and Performances
Search method
Electromagnetic wave radar method
Search object
Rebar (reinforcing steel bar), Polyvinyl-chloride pipe, Cavity, etc.
Search depth
5 to 300mm for the concrete with a relative dielectric constant ＝
6.2 everywhere and the top rebar of diameter  6mm
Depth resolution
Approx. 1 mm at the display range setting of Shallow
Approx. 2 mm at the display range setting of Deep
Horizontal
discrimination
resolution
≧ 75mm for the scanned object located at depth < 75mm
≧ Depth of the scanned object for the object located at depth ≧ 75mm
※Typical performance for the reference concrete:
This product allows the user to discriminates between two rebars located
respectively at depth 75mm and 175mm and at the interval of 40 mm.
Maximum search depth 2.5mm
Maximum scan distance 15m
Display mode
B-mode (Vertical Cross Section) and BA-mode(Vertical Cross Section
and Reflection Waveform Graph)
During scanning:
Real time auto surface wave processing, Real time manual deduction
processing, and Real time user surface wave processing
Image processing
During not scanning:
Fixed surface wave processing, User surface wave processing,
Deduction processing, Manual surface wave processing, Average wave
processing, Peak processing, and Original image
Display
TFT Color LCD (640 x 480 dots)
Depth calibration
2.0 to 20.0, 0.1 step and time
Maximum scan speed
Approx. 40cm/s, Alarm capability furnished for the over speed scanning
Control functions
Display marker（Maximum 42 points), Battery capacity indicator, and
Display inverse video
Data output functions
Data output function to the dedicated printer (IrDA)
Data save functions
CF Memory (Approx. 200 scan data of 15m distance and binary format
can be stored in the 1GB CF memory)