Elektro
Physik
Technical Manual / Operating Instructions
Coating Thickness Gauges
MiniTest 725, 735, 745
Page 1: ...ElektroPhysik Technical Manual Operating Instructions Coating Thickness Gauges MiniTest 725 735 745 ...
Page 2: ... Dr Steingroever GmbH Co KG Pasteurstr 15 50735 Köln Deutschland Tel 49 221 752040 Fax 49 221 7520467 Internet http www elektrophysik com Mail info elektrophysik com ElektroPhysik Version 1 0 01 08 2015 Gauge version 2 1 Sensor software 1 1 Subject to change without notice ...
Page 3: ...surement 18 5 1 1 Interpretation of readings 18 5 2 Necessary Settings 18 5 2 1 Batch 18 5 3 Preparing Measurement 19 5 4 Taking readings 19 5 4 1 Taking readings without using the sensor stand 19 5 4 2 High precision stand 20 5 4 3 Duplex coatings systems 20 5 5 Errors during measurement 20 5 6 Measurement on hot surfaces HT mode with high temperature sensors up to 350 C HT mode 21 6 Calibration ...
Page 4: ...48 8 2 3 View statistics if readings are grouped into blocks 49 8 2 4 View single readings and block statistics 49 8 3 Statistical values Print out and data transfer to a PC 50 8 4 Delete readings of a batch 51 8 5 Delete a current reading 51 9 Main menu 51 9 1 General remarks 51 9 2 Data base 52 9 3 Display 52 9 4 SIDSP 54 9 5 Time Date 54 9 6 Language 55 9 7 Measuring unit 55 9 8 Switch off mode...
Page 5: ...sor 72 13 3 3 MiniTest 745 with convertible SIDSP sensor 73 13 3 4 Convertible SIDSP sensors for MiniTest 745 73 13 4 Accessories 74 14 Annexe 75 14 1 Error messages and remedy 75 14 2 Statistical Terms 81 14 3 Safety Notes 82 14 4 Declaration of Conformity 83 14 5 After Sales Service 84 15 Change history 84 16 Index 85 ...
Page 6: ...y The measuring system comprises a sensor and a display unit According to model the gauge features a built in sensor an external sensor or a convertible sensor Three basic models are available MiniTest 725 with a firmly connected built in sensor MiniTest 735 with a firmly connected external sensor MiniTest 745 with a convertible sensor can be changed from built in to external on a lead All sensors...
Page 7: ...odels of the MiniTest 7X5 series are equipped with a USB interface and a Bluetooth interface to enable data communication to a PC or the MiniPrint 7000 data printer For documentation of readings and statistics all models of the 7X5 series are equipped with a USB and Bluetooth interface to enable data communication to a PC or to a portable printer MiniPrint 7000 BT available as an option For data e...
Page 8: ...nt lid e Above the battery compartment screw a connection for fixing the hand strap is located The hand strap comes with the gauge and can be fixed now If you have purchased the MiniTest 725 or 735 model please jump step f The MiniTest 745 model can be used with both built in and external sensor The gauge comes with the adapter cable fixed to the gauge for use with the external sensor For using th...
Page 9: ...ounted to the gauge housing at any angle Adjust the prism as requested for your setting of task and fix firmly 2 2 Switch ON and take readings Please note The following steps to perform the initialising sequence need only be performed at initial use 1 The gauge must be switched OFF 2 Press ON OFF button on the left side of gauge and ESC key simultaneously 3 Release ON OFF button first The initiali...
Page 10: ...e fig on the left a Now the gauge is in the measure mode and ready for measurement The measure screen appears see fig below Readings are not yet available b At initial use Batch 00 see section 7 2 2 and the factory pre setting STD are active For further information on Calibration please refer to section 6 The active batch and the calibration mode are shown in the status line c The factory pre sett...
Page 11: ... Press ON OFF button to switch the gauge ON or OFF If you press ON OFF button and ESC simultaneously the initializing procedure will be performed for more details please refer to section 10 1 Press Function key CAL to start the calibration procedure Press Function key MENU to call the main menu Press Function key STAT to call the statistics menu The command and navigation key block has the followi...
Page 12: ... LR6 size batteries are included in the standard supply schedule As an alternative all models may also be operated on rechargeable NiMH type AA HR6 rechargeable batteries Please use only products as recommended by ElektroPhysik See section 13 3 Accessories If you are using the rechargeable batteries the power source setting must be adjusted accordingly See section 10 1 For charging the rechargeabl...
Page 13: ...tteries within one minute immediately after removing the used ones If you wait for longer than one minute the message Check clock settings will appear see section 9 4 However readings and calibration values will remain in memory For field use replacement batteries should be always at hand Erratic readings due to low battery do not occur as the gauge switches off automatically or does not switch on...
Page 14: ...methods of digital signal processing are used This enables to achieve a signal quality and precision unmatched so far with analogue signal processing SIDSP sensors display extremely high interference immunity Anything that has to do with measuring signals will be handled by SIDSP in direct proximity to the sensor head No more interference during data transmission of the measuring signals via asens...
Page 15: ...c induction method Press arrow down key for non ferrous N substrates eddy currents method If you press OK the Auto F N mode with automatic substrate identification will be activated If you make no selection at all the Auto F N mode will be adjusted automatically after approximately 5 seconds In the Auto F N mode the gauge automatically identifies the substrate material to adjust to a suitable meas...
Page 16: ...menus CAL calibration menu Menu main menu and STAT statistics menu These menus can be accessed via the CAL Menu and STAT keys Press the Function key Menu to access the main menu Use arrow keys to select an item from the menu e g SIDSP Press OK to confirm your selection A submenu will open or a function will be called e g Print To go back to the previous menu level press ESC The parameter and data ...
Page 17: ...to the language selection level 4 4 2 Setting Numerical Parameters Numerical parameters can be changed within their predefined ranges Use arrow up down key to change as requested If there is no predefined value available display will show press arrow up key to show the maximum value and arrow down key to show the minimum value A brief pressing of arrow up down keys will change the value to the nex...
Page 18: ...nt only refers to those parts of the test object that have been covered by the sensor For that reason conclusions may not be drawn on parts of the measuring object that have not been covered by the sensor during measurement In general such conclusions are only admissible if comprehensive experience and approved methods of statistical data acquisition are available 5 2 Necessary Settings Before tak...
Page 19: ... safe contact pressure on the measuring object without tilting The V groove of the sensor ensures correct positioning of the sensor on cylindrical objects To take readings place the external sensor of the MiniTest 735 or 745 model and or with the built in sensor the complete gauge MiniTest 725 or 745 onto the object to be measured As soon as the sensor has been placed onto the object a reading wil...
Page 20: ...e finish will measured thickness 1 2 Set the gauge to non ferrous substrates The zinc coating will be considered as non ferrous substrate and the thickness of paint will be measured thickness 2 3 Now you can evaluate the thickness of zinc coating by calculating the difference between the thickness 1 and thickness 2 Please note that for measurement of duplex coating systems a minimum zinc thickness...
Page 21: ...readings a measuring signal will sound approx 1 second after placing the sensor onto the object to be measured in order to confirm acquisition of the reading Make sure to lift the sensor immediately after the bleep sounds This is to keep the heat transfer from the object to the sensor as low as possible Do not keep the senor in contact with the measuring object for longer than one second 2 Note th...
Page 22: ...he same shape and geometry As a rule you can say that the more similar the calibration sample and the later object to be measured are the more accurate calibration and thus accuracy of readings will be Make sure the calibration sample and the later object to be measured have same characteristics such as identical curvature radius of surface identical substrate materials such as magnetic permeabili...
Page 23: ...eadings Keep thickness standard clean free from grease oil dust or other build ups Build ups on the foils will be considered as thickness and will lead to a measuring error of the same value as thickness of build up To give you a rough idea a build up from a finger print will be enough to add an additional thickness of some microns Please note If the gauge switches off during the calibration proce...
Page 24: ...ve you the zero point the other one on a precision standard which is put on the substrate Compared to the zero calibration this calibration method implies a higher accuracy Accuracy will increase if the thickness of the precision standard is close to the thickness of the later object to be measured 6 2 2 3 Multi point calibration Z 12 is shown in the status line Calibration points zero point direc...
Page 25: ...guided calibration methods 6 2 3 1 General remarks For all defined and menu guided calibration methods the following applies The selection of a defined calibration method is made during the creation of a batch After you have completed the set up of a batch you may proceed on the menu guided calibration The factory calibration will be valid until you have completed the calibration procedure A runni...
Page 26: ...on points on two precision standards no zero point This calibration method is used for rough surfaces such as on blasted samples Two calibration points are to be taken on two precision standards which are to be put on the substrate The first precision standard should be thinner than the thickness to be expected the other one should be thicker than the thickness to be expected There is no zero poin...
Page 27: ... should be made on the uncoated smooth non blasted and clean calibration sample of the same geometry and material as the later measuring object After this at least 10 readings should be taken on the rough non blasted and uncoated measuring object Enter the roughness mean value as roughness value in the setting 1 3 profile height of the current batch The roughness value you have entered will be sub...
Page 28: ... is not coated completely the substrate can be accessed A calibration according to section 6 3 4 Method C or according to the predefined calibration method Rough is to be carried out During the creation of a batch select Manual our Rough Set the block statistics to 3 reading per block 6 3 Blasted and rough surfaces 6 3 1 General remarks To remove rust in order to ensure a good adhesion of the pain...
Page 29: ...libration method to Manual Calibration points zero point and on a precision standard Carry out a two point calibration according to section 6 4 3 3 Use an uncoated rough blasted and clean calibration sample with the same geometry and the same substrate material as the later measuring sample Take at least 10 readings on the uncoated calibration sample followed by 10 readings on the precision standa...
Page 30: ...to section 7 2 2 For all calibration methods except for the factory calibration applies For optimum calibration accuracy it is recommended to take several readings for each calibration point The gauge automatically calculates the average in order to reduce the variations and erratic readings to a minimum Calibration may be effected in both in the single reading mode or in the scan mode Once readin...
Page 31: ...ill be asked again to select a base If calibration for both bases has been completed you can quit calibration by pressing ESC You will go back to the measure mode 6 4 3 2 Zero point calibration Start calibration and put the sensor on the blank uncoated calibration sample Wait for the signal to sound and lift sensor Please observe the instructions in section 6 1 General Repeat this procedure severa...
Page 32: ...ration procedure Put a precision standard on the uncoated calibration sample Place the sensor on top of it wait for the signal to sound and lift sensor Repeat this procedure several times approx 3 to 10 times on the same measuring spot The average will be shown If the set point Cal as displayed is not identical with the thickness of your precision standard use arrow up and down keys to adjust acco...
Page 33: ...ce the sensor on top of it wait for the signal to sound and lift sensor Repeat this procedure several times approx 3 to 10 times on the same measuring spot The average will be shown If the shown set point Cal as displayed is not identical with the thickness of your precision standard use arrow up and down keys to adjust accordingly Press OK to confirm the calibration point Put the second precision...
Page 34: ...verage will be shown Evaluation of average is to increase accuracy of calibration Accuracy will increase with an increasing number of readings If the shown set point Cal as displayed is not identical with the thickness of your precision standard use arrow up and down keys to adjust accordingly Press OK to confirm the calibration point Put the second precision standard on the uncoated calibration s...
Page 35: ...ith stored readings If you have put the sensor on the uncoated sample the message as shown on the left will appear If during recalibration you refresh zero you have to repeat all subsequent calibration points Press OK to confirm and go through the calibration procedure as usual If you do not refresh the zero point and jump this point the alert message as shown on the left will be omitted Only the ...
Page 36: ...ce from the list Press OK to confirm Situation 3 If you have completed at least one calibration point and you have confirmed by pressing OK or if you have jumped one calibration point but the calibration procedure has not yet been completed i e if you may take some more calibration points If you press ESC you will be asked whether to cancel calibration or not Use arrow up or down keys to make your...
Page 37: ...e you have selected will be deleted After deletion the remaining calibration points will be renumerated If e g in a multi point calibration you delete point 1 the former point 2 will change to point 1 If you delete the zero calibration point the complete calibration will be deleted Note Readings stored in a batch will remain valid even if you delete all or only some of the calibration points ...
Page 38: ...reading Ja Place sensor n x on 1 st standard Calibration for Ferr or nonferr ESC OK Calibration available Ja after 10 sec or press OK sensor FN No OK OK SET ESC OK ESC ESC SET Nein yes OK CLR CLR ESC No Ja Selected value will be deleted Calibration aborted Factory calibration active after 2 sec or press OK meas mode OK ESC Abort continue repeat Abbruch continue repeat Abbruch continue repeat Value...
Page 39: ...h is shown in the status line upper display line It is referred to as BATCHxx xx is the current number of batch 7 1 2 Memory Size The memory of the MiniTest 725 and 735 models are designed to store a total of 10 000 readings The MiniTest 745 model can store up to 100 000 readings With all models the memory can be divided into batches according to customer requirements So you can use for instance t...
Page 40: ...Australian Swedish Manual Measure mode x x x x x x x Roughness x x x x Profile depth x Offset x x x x x x Block size 5 100 3 100 1 100 3 100 5 100 1 100 Upper limit x x x x x x x Lower limit x x x x x x x Symbol shown in status line STD ISO SSPC RGH AUS SWD MAN Auto FN mode x x 7 2 Data base 7 2 1 General remarks The data base is for management of your batches You can create new batches define the...
Page 41: ...tings routine will be called Now you can view and change all parameters one after the other Press OK to go from one parameter to the next one User arrow up down keys to change the parameter settings as requested Press ESC to go back to the previous parameter To quit the parameter settings routine you can press ESC if the first parameter is called calibration method or press OK if you are in the pa...
Page 42: ...ts principle for nonmagnetic conducting substrates nonferrous substrates austenitic steel Auto F N the sensor automatically identifies the substrate and selects the matching measuring principle this option is only possible with the Factory or Manual calibration method Parameter Measuring mode Available options single reading and Scan mode In the single readings mode a reading is taken and stored i...
Page 43: ...ings and block statistics In some of these norms the block size is predefined For the single readings statistics the block size must be adjusted to 1 Parameter Upper limit Lower limit You can set upper and lower limits to monitor deviations from the set point Readings beyond the specified limits will be signalled through the LED lighting up in red key above the MENU function key In addition a sign...
Page 44: ...to confirm The currently active batch is marked by an arrow Use up down arrow keys to select the requested batch Press OK to confirm Your selected batch is now active The display shows name of batch date and time of batch setting and the last modification You can select from the following options change overview delete If there are no parameter changes are to be made you can directly proceed on me...
Page 45: ...nly be changed as long as there are no readings stored in your batch As soon as there are readings stored in the batch a lock symbol will appear on screen to indicate that the requested parameter cannot be changed If you still wish to have this parameter changed e g for using this measuring series for a new application you first have to delete the readings of this batch see section 7 2 6 ...
Page 46: ...gs Sensor type FN 1 5 F 1 5 N07 FN5 F5 N2 5 F2 F15 Measuring principle Auto Auto F N Fe Ferrous N Fe Non Ferrous Measuring mode Single reading Measuring mode Scan mode Calibration method Factory Calibration method Manual Calibration method ISO Calibration method Swedish Calibration method Australian Calibration method SSPC Calibration method Rough profile depth or profile depth 10 µm Offset 25 µm ...
Page 47: ...rrow keys to select the requested batch Press OK to confirm Select delete and press OK to confirm The message Delete all will appear If you press YES the batch you have selected will be deleted and the message Readings and settings have been deleted confirms deletion Attention Once you have deleted the readings and settings of a batch they cannot be restored ...
Page 48: ...tistics will be calculated from single readings Single readings statistics If you press function key STAT from measuring mode the statistics menu will be called Press OK confirm As an alternative you can call this function form the measuring mode by pressing function key STAT twice The batch statistics include the following values number or readings mean value Maximum standard deviation Minimum va...
Page 49: ...ings are grouped into blocks blocks size 1 the batch statistics will be calculated from the results of the different block statistics Press function key STAT from measuring mode to call the statistics menu Select Statistics and press OK to confirm As an alternative you can call this function from the measuring mode by pressing function key STAT twice The block value statistics includes the followi...
Page 50: ... block has been completed 8 3 Statistical values Print out and data transfer to a PC All models of the MiniTest 700 series are equipped with an infrared port IrDA 1 0 Readings and statistics of a batch can be transferred to a PC or printed out on the MiniPrint 7000 data printer Press function key STAT to call the statistics menu Use arrow up down keys to select Print Press OK to confirm In the Pri...
Page 51: ...sing ESC A deleted reading will continue to be shown on the single readings list but will be marked with an X However a deleted reading will not be used for statistics calculation neither will it be printed out or transferred to a PC In the Scan mode it s not possible to delete a reading once it has been stored into the statistics memory 9 Main menu 9 1 General remarks The Main menu represents the...
Page 52: ... the bluetooth interface If the bluetooth interface is deactivated while a connection to a PC is still active a warning Disconnect existing connection is displayed If you select Yes the connection will be interrupted abort the menu by pressing the ESC button or select No In order to establish a bluetooth connection between the data printer MiniPrint 7000 it is required to pair both devices once Se...
Page 53: ...he contrast in percent Press OK to enable ticked box or disable the backlight Please note that power consumption will be higher with this mode enabled and the battery life will be reduced accordingly If batteries are low the backlight option cannot be enabled Select Contrast and press OK to confirm Now use arrow up down keys to adjust contrast in percent as required from 30 to 90 Press OK to confi...
Page 54: ...measuring at a maximum precision Please note that the measuring speed has no priority in this setting If you select high precision it is recommended to use the precision stand to ensure that readings are always take at the same spot Please select normal if you do not use the measuring stand 9 5 Time Date The gauge features a quartz controlled time clock to indicate date and time The current time i...
Page 55: ...w up down keys to make your selection Press OK to confirm or quit without changing the language by pressing ESC 9 7 Measuring unit This menu item is for setting the measuring system You can select metric system µm mm cm or imperial mils inch and thou The measuring units within a measuring system will be automatically set by the gauge according to the thickness being taken 9 8 Switch off mode The g...
Page 56: ...ne The signal tone is to confirm acquisition of readings and to confirm key action Select Signal tone from main menu and press OK to confirm Use arrow up down keys to set to low off loud or medium 9 11 Sensor data Select Sensor data from main menu and press OK to view the sensor specifications These data should be made available for any service requests 9 12 Gauge data Select Gauge data from main ...
Page 57: ...escriptive texts as well as photos of samples is also possible 10 1 Print out data Readings and statistics of a batch are transferred to a data printer MiniPrint 7000 using the wireless Bluetooth interface Before printing a one time pairing of the printer with the MiniTest gauge is required see chapter 9 3 Select the statistics menu by pressing the function key STAT Select the submenu Printing usi...
Page 58: ...ys or and validate by pressing the OK button After activation of the print function the message Connecting is displayed If no PC connection was or can be established the message Warning No printer PC found is displayed Data transmission is signaled by the display message Data transfer If the error message Data transmission error is displayed Check the configuration of the PC Hinweis After activati...
Page 59: ...abort and go back to the previous setting 2 Total Reset The next step will be Total Reset A total reset restores the factory settings If you do not wish to restore the factory settings use arrow up down keys to select No Press OK to confirm Press ESC to abort action Attention If you select Yes all data will be irrevocably deleted All settings except the language setting will be reset to factory se...
Page 60: ... options OFF 1 0 sec 1 5 sec 2 0 sec 2 5 sec 3 0 sec 3 5 sec 4 0 sec 4 5 sec 5 0 sec To prevent the gauge from unintentional switch ON or OFF you can adjust the ON OFF button to the above key reaction delay times If for instance you have adjusted a delay time of 2 5 sec the ON OFF button must be pressed for 2 5 seconds to switch the gauge ON or OFF Use arrow up down keys to adjust the requested de...
Page 61: ...en µm and mils The quick toggle function to switch between the measuring units is recommended for countries that are using both measuring units If you change the measuring unit the values will be refreshed accordingly Once you have activated the special functions menu use arrow up down keys to make your selection Press OK to confirm or press ESC to abort and to return to the previous display Quick...
Page 62: ...ective sensor data sheet i e higher than the fixed proportion of specified tolerance i e 1 5µm with the FN5 sensor it is recommended to readjust the factory set zero point Readjustment is made in the sensor service menu This is available in English only and can be accessed via the sensor data menu Select view sensor data and press the following keys subsequently arrow up and menu key Press OK to c...
Page 63: ...13 ElektroPhysik MiniTest 725 MiniTest 735 MiniTest 745 63 85 Press OK to replace it or ESC to abort If you abort the factory pre setting remains valid ...
Page 64: ...ings All Statistics Format Time Date Messung Korean Deutsch English thou µm mm mils inch after 30 min disable after 1 min after 3 min after 10 min off short on long on off low medium loud high precision normal fast Backlight Contrast delete change overview Data base Display Signal tone Sensor data Gauge data SIDSP Time Date Languages Measuring unit Switch off mode Signal light ...
Page 65: ...iTest 745 65 85 12 2 How to create a Batch Batch Calibr method Substrate Measure mode Roughness Offset Block size Upper limit Lower limit Single reading Scan mode Non Ferrous Ferrous Auto F N Australian Factory calibr ISO SSP C Swedish Manual Rough ...
Page 66: ... If the MiniTest will not be used a longer period of time remove the NiMH batteries before storing the gauge Please note that even if the gauge is switched off a faint current will flow which as a consequence will lead to deep discharge after some time Deep discharge might destroy batteries and must be prevented in any case For extended storage periods more than six months NiMH rechargeable batter...
Page 67: ...o ISO ISO 19840 2004 E SSPC SSPC PA2 May 1 2004 Swedisch SS 184160 1992 03 11 Australian AS 3894 3 2002 Display 128 x 64 Dots graphics display backlit Signal transducer Magnetic Transducer adjustable from high approx 70dB to OFF Measuring units µm mm cm mils inch thou User selectable tolerance limits with monitoring option Audible and visual alarm to monitor deviations from tolerance limits Offset...
Page 68: ...Norms and standards DIN EN ISO 1461 2064 2178 2360 2808 3882 19840 ASTM B244 B499 D7091 E376 AS 3894 3 SS 1841 60 SSPC PA 2 Dimension of gauge 157 x 75 5 x 49 mm Weight approx 175 g approx 210 g approx 175 g with built in sensor approx 230 g with external sensor Dimensions pouch 200 x 100 x 80 mm Operating temperature gauge 10 60 C Storing temperature gauge 20 70 C Operating temperature sensor 10 ...
Page 69: ... eddy currents magnetic induction magnetic induction eddy currents eddy currents Signal processing sensor integrated digital 32 bit signal processing SIDSP Accuracy Factory calibration Zero calibration Multi point calibration 1µm 3 of reading 4 1µm 1 5 of reading 1µm 0 75 of reading 3 1 5 µm 3 of reading 4 1 5 µm 1 5 of reading 1 5 µm 0 75 of reading 3 5 µm 3 of reading 4 5 µm 1 5 of reading 5 µm ...
Page 70: ...Dimensions and weight of external sensor 15 x 76 5 mm 65g 15 x 76 5mm 65g 23 x 76 5mm 70g 1 not suitable for rough surfaces 2 with zero point and multi point calibration 3 if calibration is made close to the thickness to be expected and related to ElektroPhysik precision standards 4 if the measuring objects has the same material shape and roughness as the reference zero plate supplied with the gau...
Page 71: ...5 F15 MiniTest 725 with SIDSP sensor for all electrically insulating coatings applied non non ferrous metals and on austenitic steel eddy currents principle N0 7 N2 5 MiniTest 725 with SIDSP sensor works according to the magnetic induction and on the eddy currents principle FN1 5 FN5 Each model comes with padded soft pouch with shoulder strap and belt clip 1 and or 2 reference zero plate s 2 preci...
Page 72: ...est 735 with SIDSP sensor for all electrically insulating coatings applied non non ferrous metals and on austenitic steel eddy currents principle N0 7 N2 5 MiniTest 735 with SIDSP sensor works according to the magnetic induction and on the eddy currents principle FN1 5 FN5 Each model comes with padded soft pouch with shoulder strap and belt clip 1 and or 2 reference zero plate s 2 precision standa...
Page 73: ...P sensors for MiniTest 745 Description Article SIDSP sensor for non magnetic coatings applied on ferrous substrates and steel also on steel alloys and hardened steel magnetic induction principle F1 5 F2 F5 F15 SIDSP sensor for all electrically insulating coatings applied non non ferrous metals and on austenitic steel eddy currents principle N0 7 N2 5 SIDSP sensor works according to the magnetic in...
Page 74: ... 5V 2 pcs required 02 064 0008 Rubber protection case with neck strip 82 010 0065 Precision stand only for MiniTest 735 and or 745 for measuring range up to 5mm Precision standards please ask for special list MSoft 7000 basic data transfer software German English French 80 901 1600 MSoft 7000 pro Software data managing software German English French 80 901 xxxx Manufacturer s Test Certificate acco...
Page 75: ...continue for some time batteries should be replaced Replace batteries or reload rechargeable batteries Used batteries should not be disposed of with the domestic refuse Please dispose of used batteries in accordance with the statutory regulations Low battery This message briefly appears before batteries are completely discharged The gauge switches off Batteries must be replaced recharged before yo...
Page 76: ...sor into the air to obtain infinite value At switch sensor was hold too close to metal part Make sure to keep a safety distance from metal parts at switch on The sensor should be kept in a distance from metal parts of at least 5 times the measuring range The gauge switches automatically to measuring mode Refresh infinite value Make sure to refresh the infinite value from time to time This is vital...
Page 77: ...tch do not match the data of sensor you are currently using Chose another batch or create a new one MiniTest 745 only MiniTest 745 only Recalibration required The currently active batch has stored readings taken by a sensor of the same type but which is not identical with the one currently connected Please carry out calibration in the current batch Invalid calibration Recalibrate This message appe...
Page 78: ...If the sensor seems to be defective please exchange by another one or contact the ElektroPhysik after sales service No sensor found After switch on the gauge cannot establish a connection to the sensor Possible causes no sensor connected loose sensor connection defective cable defective sensor Please check for reason of error When using MiniTest 745 Please try to use the senor in the internal mode...
Page 79: ...e interface Then restart data transfer Unsuitable substrate eg magnetic Unsuitable substrate e g ferritic Substrate coating combination not suitable The calibration you have made is not suitable for the shape or substrate of measuring sample The first two messages occur in the Auto FN mode the other one in the F or N mode Please carry out calibration on an object which in shape and substrate mater...
Page 80: ...g errors may be remedied by a Total Reset Please refer to section 10 1 on how to perform a total reset no response to key action reading acquisition failure illogical readings If you are not able to switch the gauge off via the ON OFF button please remove and reinsert batteries ...
Page 81: ... the numbers in the list from their mean divided by the number of readings minus 1 1 var 2 n x x Standard Deviation STD DEV s s sigma The sample standard deviation is a statistic that measures how dispersed the sample is around the sample mean The sample standard deviation increases with increasing spread out The standard deviation of a set of numbers is the root mean square of the variance s s x ...
Page 82: ... of gauge Connect only to compatible peripheral devices Connecting other devices If you connect the gauge to another device please refer to the corresponding instructions manual for detailed information on safety issues Do only connect original accessories recommended by the manufacturer of the MiniTest 700 series Keep away from water The measuring unit is not waterproof Keep in a dry place Keep a...
Page 83: ...D 50735 Cologne Germany declare in sole responsibility that the products MiniTest 725 MiniTest 735 and MiniTest 745 to which this declaration relates is in conformity with the provisions of directive 89 336 EEC Electromagnetic compatibility in Germany EMVG Gesetz über die elektromagnetische Verträglichkeit of November 9th 1992 ...
Page 84: ...s Please note that the gauge should only be repaired by authorized skilled and trained personnel Service attempts by untrained personnel could cause extensive damage to the gauge and possibly void any and all warranties Please retain original packing for returning the gauge in case of repair For more detailed information on the use applications service or technical data please contact ElektroPhysi...
Page 85: ...t external 12 Coefficient of variation 48 49 Configuration 18 Correction value 26 28 Delivery schedule 69 display 53 Infrared 50 Initializing 57 ISO6 19 25 26 28 40 42 43 46 65 66 75 82 Language 55 Mean value 27 31 32 33 34 48 49 Measuring principle 46 65 69 70 71 Norms and standards 65 rechargeable battery 72 Rough 19 28 40 42 46 75 Roughness value 46 Rz 20µm 29 Rz 20µm 29 Signal lamp 56 single r...
