JRC Handy Search NJJ-95B Reinforced Concrete Radar

Introduction to the Handy Search NJJ-95B Reinforced Concrete Radar

Instrument Manual

More and more requests for quality assurance inspection on concrete buildings have been made in recent years. When a concrete building is repaired, rebuilt, or maintained, there is the potential problem of accidentally cutting a reinforcing steel bar, electrical conduit and wiring, gas pipes, or plumbing. To perform quality assurance inspection and avoid such an accident, "Handy Search" has been developed as a non-destructive search device that can sense deep in concrete buildings.

NOTE: When using this instrument when rolling forward the image and targets shown on the dotted line on the screen represents the Back of the probe. When being rolled backwards the dotted line represents the front of the probe.

Principle of Handy Search

This device radiates electromagnetic waves through a concrete surface and receives reflected signals from objects such as reinforcing steel bars, cavities, or other objects that have different electrical characteristics from concrete. Object location and depth are then displayed and recorded as image data.

Main Features

Compact and weight saving
The integration of the main-body display with an antenna section makes the device compact. It weighs only 1.1 kg which enables you to operate it with one hand.

Cable-less printing
Implementation of the IrDA function eliminates cable connection and enables the dedicated monochrome printer (optional) to print out data on the spot.

Search of both metallic and non-metallic objects
The radar system makes it possible to search for non-metallic items, such as vinyl chloride pipes and cavities, as well as metallic objects, such as reinforcing steel bars. (Only skilful operators are allowed to analyse the image data of non-metallic objects.)

Real-time surface wave processing
The NJJ-95B quickly performs search operation since it can eliminate surface waves in real time. In addition to fixed surface waves, the NJJ-95B enables the setting of surface waves with data being searched, offering simple operation and high-accuracy search capability.

Data maintenance and replay
A single search operation enables 15 meters worth of data to be saved and replayed.

Reading/recording of the analysis cursor position
After the search operation, the locations and depths of reinforcing steel bars and the likes can be read and recorded by the XY cursor. (Up to 7 points)

Suitable for

Additional Resources

Instruction Manual (pdf)