3 Operating Method The numbers that are shown with a square outline in this chapter correspond to the numbers in Tables 2-1 and 2-2 on pages 8-11. Furthermore, keys are displayed on this product using bold Gothic characters. WARNING Do not use any battery pack other than the recommended battery packs. Doing so could cause fire, electric shock, or breakdown. Do not short-circuit the terminals of the battery charger or battery pack. Doing so could cause fire, explosion, or breakdown.
CAUTION Do not use this product in the vicinity of a radio or TV set. Doing so may cause noise or poor reception such as disturbance of television pictures. Doing so also adversely affects the depth sensing capability of this product, and may cause the cutting of reinforcing steel bars. Do not use this product near a cell phone or transceiver that transmits electromagnetic waves.
.1 Scan preparation (1) Mounting the hand strap A hand strap for drop prevention is provided as standard with this product. Mount the hand strap on the handle of this product as shown in Figure 3-1, put your hand through the hand strap to grip the handle, and start to scan. Figure 3-1 Hand Strap (2) Connecting the power source (battery pack) The power source applicable to this product is the battery pack or the AC adapter (option).
a) Mounting the battery pack (See Figure 3-2.) 1. Confirm that the 16 power switch is set to OFF . 2. Open the battery cover 2 at the top of this product, confirm the direction of the battery pack and put it into the battery holder. 3. Push the battery pack forward to connect with the terminals, and close the battery cover 2. b) Dismounting the battery pack (See Figure 3-3.) 1. Confirm that the 16 power switch is set to OFF . 2.
(3) Inserting and removing a CF memory This product can save scan data into a CF memory. To save scan data into the CF meory, insert the CF memory according to the procedure in Figure 3-4 always while this product’s power switch is off. To remove the CF memory, perform the procedure in Figure 3-5 always while this product’s power switch is off. Notes • Insert/remove the CF memory always while the power switch of this product is off. • Make sure of the insertion direction before inserting the CF memory.
Caution When inserting the CF memory into the product, make sure to keep the eject switch being pushed down into the memory socket before inserting the CF memory. OK State of the eject switch being pushed down into the memory socket. Compact Flash After pushing the eject switch down into the memory socket, insert the Compact Flash memory. No State of the eject switch being pushed out from the memory socket.
3) Press the eject again to enable pulling the CompactFlash out 1) Open the lid of the 8 CompactFlash insert opening CompactFlash 2) Push the eject so that the eject button is pushed in 4) Pull out the CompactFlash 5) Push the eject button so that the eject button is pushed in 6) Close the lid as was to start with Figure 3-5 Removing the CF memory - 33 -
Caution When removing the CF memory from the product, make sure to push only the eject switch and don’t push the CF memory at the same. OK Eject Switch No Compact Flash Push down only the eject switch, then remove the Compact Flash memory. Eject Switch Compact Flash Pushing both the eject switch and the Compact Flash at the same time causes the damage inside the eject switch, since the finger power works reversely to the inside of the eject switch.
(4) Target Preparation for Scanning Mark the start line and svanning line by using a chalk (or similar) on the concrete surface to indicate where to start scanning (starting line) and where to scan (scanning line). Make sure the start line and the scanning line are orthogonal. As necessary, in order to perform a retest, use the endpoint of the wall as the reference point for the start line and scanning line. An applicable set up example for scanning is shown in Figure 3-6.
3.2 Scanning 3.2.1 Power-on procedure The 1 LCD screen lights up roughly 5 seconds after the power is turned on by turning on the 16 power switch, then an initialization screen is displayed. After the initialization screen completes, the scan screen is displayed. After the scan screen is displayed on the LCD screen, start the scan. The battery meter showing an approximate value of the remained battery power is displayed at the upper right of the LCD screen 1 . (See Figure 3-7.
(4) Press the 11 ▼ key to finish the scan test. A double beeping sound is generated and the scan is stopped. In addition, after 8 seconds from releasing the 9 START key, a double beeping sound is also generated and the scan test is stopped. If the scan distance reaches to 15 m, a double beeping sound is generated and the scan automatically finishes.
3.2.3 Sensitivity The initial sensitivity setting (default) at the factory shipment is AS (A shallow). The AS setting is used to detect rebar at a depth of less than 10 cm in the general concrete. The A of the setting name AS indicates the overall sensitivity; and the S (Shallow) indicates the depth sensitivity. There are five levels for the overall sensitivity: -2 , -1 , A , +1 , +2 . In general, use this product in the A setting.
3.2.5 Real time manual deduction processing Waves reflected by objects to be probed (e.g., reinforcing steel) at a position near the concrete surface are difficult to identify because they are combined with waves reflected by the concrete surface (called surface waves).
Remarks • Real time manual deduction processing performs the image processing same as the deduction processing during scanning. See Section 3.4.3 Deduction Processing regarding the deduction processing. • When the mage processing is performed for scan data by using real-time manual deduction processing and the surface wave data for manual surface wave processing is rewritten, the scan result during scanning may not be reproduced. See Section 3.4 Image Processing.
3.3 Operation while not Scanning 3.3.1 Mode switching This product can scan/display the scan result in both the B-mode (vertical cross section) and the BA-mode (vertical cross section and reflected waveform display). When the display mode is switched between the B and BA-modes after scanning, the data scaned in the B-mode is displayed in the BA-mode, and the data scaned in the BA-mode is displayed in the B-mode. (See Figure 3-10.
3.3.2 Sensitivity switching As the sensitivity can be switched for the scan results in the same way as during scanning, re-scanning does not have to be performed again after changing sensitivity. The sensitivity is displayed, for example, as AS (A shallow). The A of the setting name A shallow indicates the overall sensitivity; and the S (Shallow) indicates the depth sensitivity. There are five levels for the overall sensitivity: -2 , -1 , A , +1 , +2 . In general, use this product in the A setting.
page of cursor markers 15 to 21, and to the 4th page of cursor markers 22 to 28, and to the 5th page of cursor markers 29 to 35, and to the 6th page of cursor markers 36 to 42, then returns to the 1st page. (See Figure 3-12 Cursor Coordinate.) When you place a new cursor marker by pressing the 10 MARK key, the coordinate information (moving distance and depth) of the new cursor marker is registered automatically in the first vacant cell at the displayed cursor marker coordinate page.
Cursor Coordinates Cursor mark coordinates Cursor Mark Cursor Figure 3-11 Cursors and Cursor Markers ENTER Key 6th page th 5 Page 4th Page 3rd Page 2nd Page 1st Page Figure 3-12 Cursors Marker Coordinate - 44 -
(3) Cursor marker coordinate Cursor marker coordinate consists of four lists which display the cursor marker coordinate values (X, and Y) with full avaiable digits. And the lists dispay the pitch between each neighboring cursor markers (horizontal distance between a cell and the above cell), and one list displays the average, minimum. and maximum values of all cursor markers’ depth (Y) and pitch.
b) File Name The xxxxxxxxxxx(File Name) of b) area displays the data file name in the CF memory when the data is stored into CF memory or the data is recalled from the file stored in CF. The file name of b) displays blank (space) when the data displayed on the scan screen is not stored into CF before/after the scan. c) depth The depth:xx.xx of c) area displays the setting at the depth parameter.
indicate - - -. k) DELETE MARKER xxx You can delete some cursor markers one time per each cursor marker page or all cursor markers one time by using this field. The available settings for DELETE MARKER xxx are DELETE MARKER ALL , DELETE MARKER 1– 7 , DELETE MARKER 8–14 , DELETE MARKER 15–21 , DELETE MARKER 22– 28 , DELETE MARKER 29–35 , DELETE MARKER 36–42. To delete the cursor markers, select one setting by pressing the ▲▼ cursor keys and press the ENTER key. Then the message shown in Figure 3-14 appears.
3.4 Image Processing Image processing is processing that is performed on data input through scanning and enables easy deciphering of objects that are being probed for from the scan result. This product contains the following seven types of image processing: a) b) c) d) e) f) g) Fixed surface wave processing User processing Deduction processing Manual surface wave processing Average wave processing Peak processing Original image 3.4.
