Nitto CTS-02V4, User Manual

Page 1: ...CTS 02V4 User Manual...

Page 2: ...Disregarding this symbol and improper usage may cause injury or wounds and also cause physical damages to the person Examples of Symbols Symbol demonstrates prohibited acts In some cases a specific c...

Page 3: ...cals etc It may cause a fire or other disasters Do not use anywhere gas is ignited It may cause fire or explosion Misuse of the batteries may cause contamination around a case by leakage of battery fl...

Page 4: ...f what is written above Please consent to this in advance 5 This measurement instrument is not designed for use on the equipments or instruments that involve human lives or that require a high reliabi...

Page 5: ...Start up CTS 02V4 PCprogrum 21 5 1 Startup CTS 02V4 PC program 21 5 2 Set up and Writing in of Measurement Parameters 23 5 3 Browsing of Parameters 27 5 4 Set up for Timer 27 5 5 Processing of Measure...

Page 6: ...le 1 1 1 Name of Various Parts of Measurement Instrument Body No Name Contents Receptor for Connection To be used for connecting CTS 02V4 body to hammer unit USB Port To be used for transferring data...

Page 7: ...Name Contents Hammerhead To make contact with a target object Hammer Cap To protect the sensor Do not use the cap side to make contact Grip To protect the sensor Do not use the cap side to make contac...

Page 8: ...tection of delamination near concrete surface In this user manual the instrument will be referred to as the CTS 02V4 2 2 Specifications of CTS 02V4 Table 2 2 1 Table 2 2 1 Specifications of CTS 02V4 N...

Page 9: ...gh humidity It may lead to damages to the instrument When hammering please use while lightly holding onto the grip The instrument cannot produce accurate results if hammered while holding the shaft or...

Page 10: ...xmax is solved by Equation 3 2 and substituted into Equation 3 1 Thus Equation 3 3 can be obtained 0 max V F MK 3 3 MK means mechanical impedance and can be obtained by dividing the maximum force gene...

Page 11: ...mber and N is used as 4 if the elastic coefficient is unchanged at NDT range of strain and at the end breaking time or 3 in the case of the normal concrete in taking account the reducing rate of the e...

Page 12: ...ration based on the law of inertia 3 2 2 1 max max max max T T R T T A dt t A V dt t A V MA F 3 6 Here A is the acceleration and T2 is the time that acceleration reaches the maximum Fig 3 2 1 Waveform...

Page 13: ...ive effects on measuring the elastic character such as plasticity of the concrete surface due to the deterioration The degree of deterioration on the surface can be calculated from the ratio of the ve...

Page 14: ...luence of the deteriorated surface is small in reactive phase Waveform of impact force when hammering on the surface of concrete with delamination Case 1 This is the typical waveform that delamination...

Page 15: ...rce when hammering on the concrete with the aggregate delamination This waveform can be obtained when hammering the concrete surface with the aggregate delamination caused by freezing and thawing acti...

Page 16: ...ge of 0 01 units in STR value results in a change of an average of 0 67 N mm2 When the STR value is 1 37 and more change of 0 01 units in STR value results in a change of an average 2 09 N mm2 Spring...

Page 17: ...amination is an aggregated delamination that is exposed by freezing and thawing of concrete or running water If aggregated delamination exists around the concrete surface several local peaks will appe...

Page 18: ...IDX 2 00 0 1 2 00 IDX 1 1 Very suitable Suitable Not really suitable Not suitable Surface Deterioration 1 If INDX value ranges between 0 9 1 30 it is judged as unlikely surface deterioration 2 If INDX...

Page 19: ...nges of STAT value and INDX value may not be observed In such case planar measurement is carried out and location of the delamination may be identified by extraction of location that the STR value is...

Page 20: ...nstalling Installing Device Driver Insert the accompanying CD ROM into the PC Run the Install exe as administrator in DRIVER folder with right click DRIVER folder is in TUSBOE47 Although several dialo...

Page 21: ...te the CTS02V4PC x64 exe file Wherever quickly accessible Fig 5 1 Contents of CD ROM 5 1 Startup CTS 02V4 PC program The initial screen is shown below See Fig 5 1 1 If the measured data exists in CTS...

Page 22: ...et the parameters Timer Set To set the timer of CTS 02V4 Connect to CTS 02V4 To connect CTS 02V4 to the PC It will not be displayed when connected Show Parameter To check the parameters set in CTS 02V...

Page 23: ...can be set using this dialog Fig 5 2 1 Dialog Window CONCRETE Select the measuring concrete is Normal or High Compressive by reference to Table 5 2 1 The parameters are different in Normal or High Com...

Page 24: ...sured by hammering twenty times the data beyond the range if any will be excluded automatically from calculation of the mean score Since then the data beyond the range will not be obtained with restri...

Page 25: ...the latter half of peak of the waveforms by impact force It is necessary to convert for estimation of the compressive strength of the concrete Please convert the compressive strength using the conver...

Page 26: ...hanges of the numbers of the parameters Table 5 2 3 Explanation of Condition Items Purpose Mass of Hammer The weight of the hammer used should be entered The current weight is 380 g Sensitivity Sensit...

Page 27: ...4 1 Please refer to the list of the name of button and its function as shown in Table 5 4 1 Present Date appeared is the date and time in internal clock for the PC not for that of CTS 02V4 YY MM DD H...

Page 28: ...ng DATA Read button the data in the selected site number will be displayed in X Y N STR INDEX list box When clicking the coordinate number in X Y N STR INDEX list box the measured data will be display...

Page 29: ...e and Index value are displayed at the top of the dialog shown in red box of Fig 5 5 3 1 These values are recalculated by the program of PC and may be different slightly from the measured values with...

Page 30: ...will be saved shown on top of the screen Otherwise select the folder from the browser See Fig 5 5 4 2 available by clicking Ref button or create a new folder Fig 5 5 4 2 Screen of Browser The data cop...

Page 31: ...surement number Fig 5 5 4 3 Data copied in PC 5 5 5 Deletion of Data When selecting the site number that you want to delete in Site Number list box and clicking Delete Site button a warning dialog wil...

Page 32: ...ries ex manganese and alkaline batteries 6 2 Connection of Hammer Unit Although the instrument body and the hammer unit are already connected the hammer unit is removable Hold the grip firmly and with...

Page 33: ...Once CTS 02V4 is started up information on version of measurement instrument date and time in the internal clock and parameters set up are displayed and then move to SITE selection screen See Fig 6 3...

Page 34: ...of data can be recorded in each coordinate number Fig 7 1 1 Example of Display for USED Fig 7 1 2 Example of Display for EMPTY 7 2 Selection of Coordinate Number and Confirmation of Data When SITE num...

Page 35: ...s a state of waiting for measurement the display will change from LOOKUP mode Fig 7 2 2 to MEAS mode Fig 7 3 1 In this state you can start hammering Fig 7 3 1 Waiting For Measurement Screen The data w...

Page 36: ...ttled Please note that the data of the last waveform is not reflected in calculation of the mean score unless button is pressed When pressing button the screen will return to LOOKUP mode that the reco...

Page 37: ...ruction 37 Fig 7 4 1 Screen of Deletion of Data Manufacturer Nitto Construction Co Ltd 1344 5 Oumu Town Oumu Monbetsu Hokkaido 098 1702 Japan Tel 81 158 84 2715 Fax 81 158 88 3031 E mail info nittoken...