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Q-see man inter'l Resitest-400M, Инструкция по эксплуатации

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less  than  5

㏀

 

corrosion  risk  is  very  high

 

5  -  10

㏀

 

corrosion  risk  is  high

 

10  -  20

㏀

 

corrosion  risk  is  moderate

 

20  -  199.9

㏀

 

good  /  corrosion  risk  is  low

 

greater  than  200

㏀

 

good

10.  Analysis  of  results

When  measuring  the  corrosion  of  concrete,  the  electrical  resistivity  is         

affected  by  the  ambient  temperature  and  the  moisture  content  of  the         

concrete  as  described  in  the  above.  That  is  why  it  is  difficult  for  the             

electrical  resistivity  to  fix  the  specific  datum  point  of  the  results.

However,  the  following  table  is  generally  used  on  site  as  the  reference          for 

analysis.

If  the  resistivity  is

 

 

Resitest  400M-June-2011-mkc-24/28

Содержание Resitest-400M

Страница 1: ...Resitest 400M Concrete Resistivity Tester Instruction Manual www mkckorea com ...

Страница 2: ...information on Resitest 400M 6 5 Preparation for use Resitest 400M 8 6 How to maintain Resitest 400M 10 7 Operation of Resitest 400M 11 8 Inspection using Resitest 400M 13 9 Operation according to each mode 14 10 Analysis of results 24 11 Maintenance 25 12 Specifications 26 Resitest 400M June 2011 mkc 1 28 ...

Страница 3: ...rray sensor The measurement is to assess results when the Wenner sensor contacts the surface of reinforced concrete structures In LCD battery status is displayed It has HOLD key to hold present measurement display and other keys to store measurement display in memory Especially RT 400M has contour mapping function which enables easy analysis of concrete status in site by color mapping Note If Wenn...

Страница 4: ...n the electrical connection and reinforcement a part of the concrete should be disrupted However Resitest 400M which has the Wenner sensor comes into contact with the concrete cover it can easily measure the state of corrosion of the concrete cover The resistivity of the concrete extremely does an important role about advancing corrosion When the resistivity of the concrete is low it is assumed th...

Страница 5: ...r electrodes By passing an electric current between the two outer current electrodes and by measuring the resultant voltage developed across the two liner voltage electrodes the Resitest 400M is to assess the results and display the electrical resistivity on LCD of the main body Resitest 400M June 2011 mkc 4 28 ...

Страница 6: ... Bag 3 Components of Resitest 400MM The Resitest 400M consists of the followings Resitest 400M main body Wenner sensor Reference PCB Water container Connection cable Insert sponge 8 Sensor cap 6 RT 4040 CD concrete corrosion analysis report program Carrying Pouch Instruction Manual Aluminum carrying bag Resitest 400M June 2011 mkc 5 28 ...

Страница 7: ...n Switzerland has developed the Resi as a new Resistivity meter lately The Resitest 400M was designed to make accurate measurements with easy operation by solving the problems and inconveniences of the existing equipments Even though the measurement of corrosion of the concrete using the Resitest 400M is very effective there are a few difficulties that must be overcome to obtain reliable results o...

Страница 8: ...e presence or absence of the individual aggregate particles usually having a very high resistivity will lead to high degree of scatter in the measurements Using larger spacing may lead to inaccuracies due to the current field being constricted by the spacing will also increase the error in the measurement of the concrete resistivity due to the increased influence of the conductive reinforcing stee...

Страница 9: ... the socket in the main body If the main body is turned before connecting the cable to the main body the main body may be damaged during connecting the cable so that it is advisable to turn the instrument after connecting cables c Concrete Surface If the concrete surface is dry or wet this can cause significant error Also when the concrete surface is stained it can not be measured and may cause si...

Страница 10: ... from virtually the same point Conversely measurements taken with very wide spacing may neither detect corrosion activity that is present nor result in the appropriate accumulation of data for evaluation The spacing shall therefore be consistent with the member being investigated and the intended end use of the measurements Generally a spacing of 50 cm has been used on site But in case of the plac...

Страница 11: ...sor In the event of the measurement of the electrical resistivity of concrete structures for the assessment of corrosion risk 4 electrode Wenner sensor is used on all occasions so far Because the accuracy of the instrument is affected by the contact condition between the sponge and the concrete surface the sponge condition should be all the time When the measurement is finished after pulling out t...

Страница 12: ...es of probe icon on the upper left are stopped and HOLD icon is displayed By pressing again get back to measurement mode SELECT It is used in MENU mode to enter into selected MENU or enter into set up RANGE Used to select measurement range To change measurement range press this key for a second or longer There are 3 measurement ranges 0 20 20 200 200 2 000 kΩ In case the measurement is not within ...

Страница 13: ... supplied with the instrument should be used How to recharge batteries First connect the plug in the charger to the socket in the instrument and plug the power plug to 220 or 110V power When the adaptor is connected red and green LED are lighted When the batteries are fully charged green LED is extinguished SENSOR connector To connect Wenner sensor to the instrument The point marked with black dot...

Страница 14: ... Wenner Sensor to the main body After connecting the cable to the Wenner sensor connect it to the socket of the main body 3 Turning on the Resitest 400M Power on using the power key At that time the Resitest 400M should be displayed 000 or 001 4 Confirming the Resitest 400M using the reference block When the Wenner sensor of RT 400M is contacted on the reference confirm if it displays in the range...

Страница 15: ...asured a Contact Wenner sensor on concrete and ascertain the measurement b Press HOLD key to hold measurement c After ascertaining if the measured value is correct press SAVE key and then SELECT key to store the measurement When CANCEL key is pressed the measurement is not stored and returns to normal measurement mode d When a datum was stored SAVE COUNT 1 is displayed on the bottom of LCD Resites...

Страница 16: ... LOAD DATA by pressing key and press SELECT key c Data numbers date and measurement value are displayed one after one How to delete stored DATA a Press MENU key to open window b By pressing key select ALL DATA CLEAR and press SELECT key Resitest 400M June 2011 mkc 15 28 ...

Страница 17: ...c If press SELECT key when warning message appears all dat stored are deleted d It can be ascertained by opening LOAD DATA window Resitest 400M June 2011 mkc 16 28 ...

Страница 18: ...y in CURRENT TIME to change the year d Press keys to set the year and then press SELECT to select the month which is changed in red color Press keys to set the month and press SELECT key The others are set up in same manner e When set up is completed press CANCEL key to close CURRENT TIME window Resitest 400M June 2011 mkc 17 28 ...

Страница 19: ...a Press MENU to open MENU window b Press key to select NEW FORMAT and press SELECT key c When WARNING message appears press SELECT key At this point not stored data are deleted d After input x y co ordinates values in NEW FORMAT window press SELECT The co ordinate values are set up by 2 x 2 through 10 x 10 e After set up press CANCEL key to return to measurement mode Resitest 400M June 2011 mkc 18...

Страница 20: ...ow After ascertaining if the value is correct press SELECT key to store the measurement When CANCEL key is pressed the measurement is not stored and return to measurement mode d Contact Wenner sensor on the second point After ascertaining the measurement repeat the b c procedure to store the data e When all the blue colored cursors are gone and all the measurement points are stored then mapping pr...

Страница 21: ...n the right side bottom In contour mapping high resistivity is represented by blue color and low resistivity in red color How to store completed image MAPPING FORMAT a After ascertaining the completed contour mapping press SAVE key b Using keys select memory number from 1 to 5 to store the data c After selecting the number press SELECT key to store the contour MAPPING Resitest 400M June 2011 mkc 2...

Страница 22: ...ld be deleted a Stop present operation b Press MENU key to open MENU window c Press keys to delect ALL DATA CLEAR and press SELECT key d WARNING message appears and press SELECT key e Press CANCEL key to return to measurement mode and store data from the first point Resitest 400M June 2011 mkc 21 28 ...

Страница 23: ...D DATA and press SELECT key c In INFORMATION window select memory number in which your data are stored using key d After selection press SELECT key to transfer the data in the memory number e When the data are transferred to PC DATA TRANSFER COMPLETE message appears Resitest 400M June 2011 mkc 22 28 ...

Страница 24: ...ile enables to generate detailed contour mapping and report format using Resitest 4040 software in CD a Excute Setup exe file to install RT 400FC program in PC b Click Start Download button to transfer the MAPPING DATA stored in RT 400M c After the transfer allocate file name and position d The stored data can be checked in LCD Resitest 400M June 2011 mkc 23 28 ...

Страница 25: ... corrosion of concrete the electrical resistivity is affected by the ambient temperature and the moisture content of the concrete as described in the above That is why it is difficult for the electrical resistivity to fix the specific datum point of the results However the following table is generally used on site as the reference for analysis If the resistivity is Resitest 400M June 2011 mkc 24 2...

Страница 26: ...ing a measurement 0000 does not disappear Check the contact status on the concrete Confirm whether the cable is duly connected The sponge is not inserted into the sensor ring After soaking the sponge and then insert it Measured results are unstable in the same position The state of contact is not good Resitest 400M June 2011 mkc 25 28 ...

Страница 27: ...Range 0 20 20 200 200 2 000 Display Resolution 0 1 1 Measurement Accuracy 1 Maximum Range 2 000 Power 6 x 1 2V AA Recghargeable Battery Battery Life Continuously 4 hours Display 3 2 TFT Color LCD Size 105 H mm x 172 W mm x 68 D mm Weight 990 gram main body Resitest 400M June 2011 mkc 26 28 ...

Страница 28: ...ecked This software runs on Windows95 but some version of Windows95 could cause problem Please check below Check Windows version number Go Start Setting Control panel System General System is the version number Check the number with below Windows 95 initial version 4 00 950Windows 95 OSR1 4 00 950 AWindows 95 OSR2 4 00 950 B Windows95 initial version and OSR1 user can go ahead to install Half Cell...

Страница 29: ...o the CD drive then install Internet Explorer in Ie_401 folder Ie4setup exe After the installation is finished read Electronic User Manual 3 How to use Electronic User Manual The User manual file is in the CD Internet Explorer is needed to read the User Manual Insert the Half Cell 2020 Resitest 4040 application installation CD to the CD drive and open Manual folder then open the manual file you wa...

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