JRC NJJ-105 Handy Search User Manual
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JRC NJJ-105 Handy Search User Manual

JRC NJJ-105 Handy Search User Manual

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ＮＪＪ－１０５
Handy Search
Users Guide

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Summary of Contents for JRC NJJ-105 Handy Search

  • Page 1 ＮＪＪ－１０５ Handy Search Users Guide...
  • Page 2 Preface Thank you very much for purchasing this JRC NJJ-105 Handy Search ( hereafter called this product) The NJJ-105 Handy Search nondestructively locates, detects, and displays the depths and positions of reinforcing steel bars in reinforced concrete structures. Before starting to use the NJJ-105 Handy Search, read through this instruction ●...

  • Page 3: Before Operation

    Disconnect the Instruction power plug ●JRC assumes no liability for any damage (such as damage caused to reinforcing steel bars, electrical pipes, gas pipes, etc.) arising from scan results using this product. ●JRC assumes no liability for any damage arising from the disappearance of scan results stored in CF memory.

  • Page 4: Precautions For Use

    Precautions for Use WARNING Do not use any battery pack other than the recommended battery packs. Doing so may cause fire, electric shock, or breakdown. Do not short-circuit the terminals of the battery charger or battery pack. Doing so may cause fire, explosion, or breakdown. Do not insert metallic or flammable objects into the CF memory slot.
  • Page 5 CAUTION Judge the scan result with considering the depth sensing capability of this product. Since the depth sensing capability of this product is subject to the conditions of the object of investigation, judging the scan result with no consideration of the depth sensing capability may cause the cutting of rebar. Put your hand through the hand strap and hold this product.
  • Page 6 Appearance...

  • Page 7: Table Of Contents

    Table of Contents Preface Before Operation Precautions for Use Appearance Glossary of Terms Description of Equipment 1.1 Function 1.2 Features 1.3 Configuration 1.4 Overall System Diagram 1.5 Configuration Parts Names and Functions 2.1 Handy Search NJJ-105 2.2 Example of the Scan Screen 2.2.1 Scan screen example (during scanning) 2.2.2 Scan screen example (during not scanning) 2.3 Parameter setting screen...
  • Page 8 2.3.20 disp.mode. setting 2.3.21 Amplitude. setting 2.3.22 X-axis. setting 2.3.23 depth. setting 2.3.24 output. setting 2.3.25 disp. range. setting 2.3.26 gain. setting 2.3.27 Marker 2.4 CF Control screen Operating Method 3.1 Scan preparation 3.2 Scanning 3.2.1 Power-on procedure 3.2.2 Scanning 3.2.3 Sensitivity 3.2.4 Antenna Mark 3.2.5 Real time manual deduction processing...
  • Page 9 3.7.4 Deleting all saved data under the selected folder 3.7.5 Deleting all saved data in the CF memory 3.8 Power-off Procedure 3.9 Clearing up this product and accessories 3.10 About the battery pack and charger 3.10.1 Battery pack BP-3007 series 3.10.2 Charging Device BC-3008 series Theory 4.1 Principle of Operation...

  • Page 10: Glossary Of Terms

    Glossary of Terms Displays received waveform as it is. The conditions of concrete directly A-mode underneath this product are displayed as reflected waveform in real time. Displays the vertical cross section of a scan point by gradating the B-mode reflected waveform shown in A-mode according to reflection intensity and continuously displaying it.
  • Page 11 Glossary of Terms (Continued) Restores the image processed result to the original state and displays Original image unprocessed raw data. Scan method that performs scanning in accordance with Handy Search's Distance feed traveling distance, using the distance detector mounted on the wheels of scan this product.

  • Page 12: Description Of Equipment

    Description of Equipment This product is indispensable for repairing/rebuilding and maintaining reinforced concrete structures using its accurate and speedy diagnostic technology. This product (concrete internal probe vehicle) radiates electromagnetic waves through the surface of concrete and receives reflected signals from objects found inside such as reinforcing steel bars, cavities, or other objects that have different electrical characteristics from concrete.
  • Page 13 Table 1-1 Functions and Performances of NJJ-105 (Continued) item Functions and Performances Maximum search 2.5mm depth Maximum scan distance B-mode (Vertical Cross Section) and BA-mode(Vertical Display mode 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...

  • Page 14: Features

    1.2 Features This product has the following features: (1) The material of the object to be scanned can be either metallic or non-metallic Reflected electromagnetic waves are generated at an interface when the electrical property of an object is different from that of concrete. Thus, this product can probe polyvinyl-chloride pipes and cavities (dependent on the position size)
  • Page 15 (7) Performing real time automatic surface wave processing Internal fixed surface wave data is used to automatically remove the wave reflected from the concrete surface during scanning enabling the showing of the reflected wave from rebar. Furthermore, surface wave processing can be switched to processing that uses scan data surface waves during scanning (real time manual deduction) enabling highly accurate surface processing.

  • Page 16: Configuration

    1.3 Configuration (1) Standard components Table 1-2 shows the standard configuration of the Product NJJ-105. Table 1-2 Standard Components Name Model Number Quantity Remarks Handy Search NJJ-105 Battery pack BP-3007 series Battery charger BC-3008 series For the battery AC cable CB-JP05 series charger Hand strap...

  • Page 17: Overall System Diagram

    1.4 Overall System Diagram Figure 1-1 shows the overall system diagram of this product. Memory Op key IrDA Trans Control section CompactFlash memory Trans Receive Distance Detector Rec. antenna Trans antenna Figure 1-1 Overall System Diagram - 6 -...

  • Page 18: Configuration

    1.5 Configuration Figure 1-2 shows the external views of this product. Top view drawing Side view drawing Figure 1-2. Handy Search NJJ-105 external dimensions diagram - 7 -...

  • Page 19: Parts Names And Functions

    Parts Names and Functions 2.1 Handy Search NJJ-105 This section shows the operation panel of this product and explains the functions for each part. １ ２ ３ ４ ５ ６ ７ ８ ９ １０ １１ １２ １３ Figure 2-1 Top View - 8 -...
  • Page 20 Table 2-1 Main Functions of Parts on this product Number in Label Function Square (None) LCD (liguid crystal display) screen (None) Battery holder GAIN Sets the sensitivity Sets each of the parameters. Decision key for start of image processing and various types of ENTER selection.
  • Page 21 ８ １４ １５ Figure 2-2 Side View ＮＪＪ－１０５ １６ １７ １４ １８ Figure 2-3 Rear View - 10 -...
  • Page 22 Table 2-2 Functions of Parts on the Side and Rear Panel Number in Label Function Square Mark indicating the scan position. (None) Antenna face to radiate and receive electromagnetic waves POWER ON OFF Turns power on and off. (None) Equipment nameplate (None) Connector for AC adapter - 11 -...

  • Page 23: Example Of The Scan Screen

    2.2 Example of the Scan Screen Describes each display on the scan screen. 2.2.1 Scan screen example (during scanning) An example of a scan screen (during scanning) is shown in Figure 2-4. (6)Antenna Mark (1)Depth calibration value (7)Distance gauge (8)Battery meter ▼...
  • Page 24 (3) Depth gauge Displays a depth gauge. The depth gauge changes based on the depth calibration value. (4) Fixed cursor Is a cursor fixed at the specified position that is used to designate surface waves used for real time manual deduction processing. See Section 3.2.5 Real time manual deduction processing for more details.

  • Page 25: Scan Screen Example (During Not Scanning)

    2.2.2 Scan screen example (during not scanning) An example of a scan screen (not during scanning) is shown in Figure 2-5. (8)Distance gauge (6)Cursor Mark (7)Cursor Coordinates (1)Depth calibration value (9)Battery meter (2)Scanning mode (10)Display range (3)Depth gauge (11)Cursor mark coordinates (4)Cursor (12)Image processing...
  • Page 26 (5) Sensitivity display Displys the sensitivity setting. See Section 3.3.2 Sensitivity switching for the method to switch sensitivity. (6) Cursor marker Displays the position of cursor markers. See Section 3.3.3 Cursor operation for how to display and erase the cursor marker. Cursor coordinates Displays the coordinates of the cross point of the cursor described in the item (4) above.

  • Page 27: Parameter Setting Screen

    2.3 Parameter setting screen The parameter setting screen Is used to see the current setting and to change the setting for each parameter. To access this screen, press the 4 SET key while the scan is stopped, then the parameter setting screen shown in Figure 2-6 appears.

  • Page 28: Disp. Mode

    while scanning to the right or to the left. The examples of the screen display for normal and invert settings are shown in Figure 2-7. Set a desired setting to this parameter in accordance with the procedure described in section 2.3. Remarks •...

  • Page 29: Amplitude

    2.3.4 amplitude You can specify the zero axis of the A-mode waveform and the color gradation used in the B-mode display by this parameter. The available settings are abs and offset . The abs sets the zero axis of the A-mode waveform (absolute amplitude) at the vertical center line in the A-mode diaply, and the offset sets the zero axis of the A-mode waveform (offset amplitude) at the left edge of the A-mode display.

  • Page 30: X-Axis

    2.3.5 X-axis You can specify the scan mode by this parameter. The available settings are distance (distance feed) and time (time feed). When distance is selected, this product scans and displays the scan result in units of 2.5 mm in the B or BA-mode display with synchronizing the wheels' moving distance.

  • Page 31: Data No

    2.3.8 data No. You can specify the data number for the external output dat by this parameter. The scan result data is recorded and numbered when being externally output. This parameter displays the current data number of the output data, and the data number (Data No.) in this parameter is incremented each time when the data is recorded and output.

  • Page 32: Dist. Adj

    2.3.10 dist. adj. You can specify the distance correction constant by this parameter. This product determines its scanning distance using the number of rotations of the wheel. Thus, wear of the wheels causes error in determining the scanning distance. To remove erro in the scanning distance, this product compensates the detected distance by using the distance correction constant set to this parameter.

  • Page 33: Disp. Range

    2.3.12 disp. range You can specify the display range of the search depth and distance range by this parameter. The available settings are D (Deep), N (Normal), S (Shallow), (Deep Wide), NW (Normal Wide), SW (Shallow Wide). Select a setting based on depth of the object to be scanned as follows.

  • Page 34: Scroll.speed

    2.3.16 Scroll.speed You can specify a scrolling speed by this parameter. The available settings are Step up and Constant . Select Step up when the scrolling speed is getting faster gradually. Select Constant when the scrolling speed is constant. Set a desired setting to this parameter in accordance with the procedure described in section 2.3.

  • Page 35: Disp.mode. Setting

    2.3.20 disp.mode. setting You can specify the initial setting for disp. mode (the display mode) at the power on by this parameter. The available settings are the last end and default . The the last end sets the previous setting at the power off to the display mode at the power on. The default sets the pre-defined display mode ( B ) to the display mode at the power on.

  • Page 36: Output. Setting

    2.3.24 output. setting You can specify the initial setting for output (the external data output) at the power on by this parameter. The available settings are the last end and default . The the last end sets the previous value at the power off to the output at the power on. The default sets the pre-defined value ( printer (I) ) to the output at the power on.

  • Page 37: Cf Control Screen

    2.4 CF Control screen While scanning is in off status and the 12 CF key is pressed, the screen switches to the CF control screen and CF memory control can be performed. To return to the scan screen, press the 12 CF key once more.

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