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VMF 1000 Amplifier User Manual

1. 4 As soon as the measurement is complete G BI 2 is displayed together with the gage block difference as is was entered above AG block Insert the second gage block which differs exactly by AG block from the first one and start the second measurement with P On the base of the two measuring results and the two nominal values the VMF 1000 calculates a correction factor C with which Factor A and Factor B will be multiplied C Gauge block 2 Gauge block 1 Measuring value 2 Measuring value 1 As can be seen from the equation only the differences in size are considered The input of the absolute gauge block values thus only serves for comfortable operation Factor A and Factor B will be multiplied by the above mentioned correction factor C Factor A new Factor B new Factor A old C Factor B old C In case of the transducer combinations A A B and B only the sensitivity of the selected transducer will be corrected i e either Factor A or Factor B In case of the transducer combinations A B A B A B A B i e in case sum or differential measurements are to be carried out the sensitiv ity of both transducers will be corrected Factor A and Factor B This however does only render correct results if the transducers symmetry has been balanced before the sensitivity was adjusted 27 6 4 Balancing the Symmetry Transducers and amplifier feature
2. E1 lt Tcr gt E2 lt Tcr gt E3 lt Tcr gt E4 lt Tcr gt E5 lt Tcr gt E6 lt Tcr gt E7 M lt Tcr gt E8 lt Tcr gt E9 lt Tcr gt Examples P51 X1 lt CR gt M1 lt CR gt P97 x lt Tcr gt Inquires the adjusted mode of operation x 0 dc voltage x 1 carrier frequency P97 0 lt Tcr gt Sets the operation mode to dc voltage P99 n lt Tcr gt Inquires the status of the keyboard lock n 0 not locked n 1 all settings locked n 2 keys locked P99 0 lt Tcr gt Switches off the lock All instrument settings can be changed P99 2 lt Tcr gt Locks the keys Now the instrument can only be controlled via the computer interface or the control inputs P100 lt Tcr gt Permanently stores all settings in an EEPROM The acknowl edgement message is sent after storing the settings Command unknown Parameter not existent adjustable Parameter value exceeds admissible limits Numerical format or syntax faulty Error during data transfer faulty record type parity baud rate etc Received text too long Measuring value at probe connections exceeds admissible range For the time being the command cannot be executed since e g the function was not activated in the system configuration For the time being the parameter cannot be adjusted P51 1 X1 lt Tcr gt Set the transducer combination to A E7 M1 2850 0 lt Tcr gt The measuring value at transducer connection A exceeds the measuring range 59 6 9Functional diag
3. 0 05 RS 232 0 01 1 5 2 10 4 40 C 0 440 C 10 4 40 C 10V 0 150 mV um 0 150 V indication range gt 2kOhm lt 10mvV OV 50 Hz 1 3 10 30 100 300 1 000 3 000 10 000 um 0 02 0 1 0 2 1 2 10 20 100 200 um max 30 classes EEPROM gt 10 000 RS 232 C 63 Revision Oct 30 2008 sem Settling time of analog output has been corrected 64
4. If only statistical results are to be printed out we recommend to set all results of the instrument configuration menu Sel Prnt which are not required to 0 This is particularly useful for transferring lots of data In case of short measur ing times and pauses it may be that the printer receives the data too quickly This essentially depends on the printing speed and the selected transfer Baud rate If the printer receives the data too quickly the VMF 1000 indi cates the error message Printer and individual characters or lines can be lost The printing mode is switched off by setting the instrument configuration pa rameter Printer to 0 If histograms or statistics are to be printed out quite frequently we recommend to assign this function to one of the function keys 23 6 Annex 6 1 Analogue output The analogue output can be used in two different modes One of the two modes DAC fix or DAC rel is selected in the configuration menu The sensitivity factor Fac DAC has different meanings depending on the mode 6 1 1 Mode DAC fix The output voltage is independent of the range of the analogue instrument The parameter Fac DAC sets the sensitivity in mV um The range is 0 999 99 mV um Example Fac DAC 100 mV um With a reading of 75 um the output voltage at the analogue output will be 75 0 100 0 mV 7 5V 6 1 2 Betriebsart DAC rel The output voltage depends on t
5. i e a master measurement must be taken thereafter Sets the transducer combination to A and the correction factor Factor A to 0 5 Sets the transducer combination to A B and the correction fac tors Factor A and Factor B to 1 0 Inquires the correction factor for transducer A n 1 or for trans ducer B n 2 The correction factor for transducer B is 1 992 Sets factor A to 3 000 and factor B to 1 500 NOTE In the provided examples the command sequence sent by the host computer which is completed with lt CR gt is as a rule given on the left hand side while on the right hand side the command sequence of the VMF 1000 which ends with lt Tcr gt is provided 54 Balancing the symmetry P59 lt CR gt P59 x lt Tcr gt P59 1 lt CR gt P59 1 lt Tcr gt P59 0 lt CR gt P59 0 lt Tcr gt Example P59 1 lt CR gt P59 1 lt Tcr gt P59 lt CR gt P59 1 lt Tcr gt P59 lt CR gt P59 2 lt Tcr gt Selecting the results to be indicated P60 lt CR gt P60 x y 2 lt 1Cr gt P60 1 11 88 lt CR gt P60 1 11 88 lt Tcr gt Selecting the results to be printed out P61 lt CR gt P61 x lt Tcr gt Inquires the status of the symmetry function x 0 function has not yet been executed x 1 function is still active x 2 function has been terminated successfully X 3 running error or abortion Starts the function balancing the symmetry Aborts the function balancing the symmetry Starts the symmetry
6. MIN MX M 2 MAX MIN MEAN 0 00 99 99 um 0 32 0 1 0 1 0 1 0 1 0 1 0 1 Tolerance monitoring switched off It is not possible to adjust upper or lower tolerance limits for tolerance moni toring Tolerance monitoring switched on external measure ments Tolerance monitoring switched on internal measure ments With tolerance monitoring switched on it is possible to adjust tolerance limits During measurement three differ ent results can be output Reject red pilot lamp Rework yellow pilot lamp Accept green pilot lamp For tolerance monitoring it is indispensable to determine the result to be monitored This can be done via parame ter Selecting the result for tolerance monitoring Sel tol Measuring result acc to transducer combination Maximum value of a dynamic measurement Minimum value of a dynamic measurement Mean of the maximum and minimum value of a dynamic measurement Difference between the maximum and minimum value of a dynamic measurement Mean value of all individual results assessed throughout the measuring time Tm Only one of the listed results can be chosen Press P Use V to select the desired result Actuate A or V to switch the result to 1 on Complete the selection by pressing RESULT or return to the configuration catalogue by actuating A Adjusting the hysteresis for symmetrically extending the class limits The standard setting f
7. causes a current to flow through the optocoupler L 12 3 25 Ausgange CMOS output Off state 0 8 V 4mA On state 3 4 V 4mA 5V S A 100 D e co O a ule 1 2 3 N U l o Adaptation of external switches to the connector Ext Pin 11 7 12 3 13 2 m 26 6 3 Adjusting the sensitivity Deviations from the nominal sensitivity can be corrected for each transducer by means of Factor A or Factor B respectively Besides the manual adjustment described in section Correction factors the VMF 1000 also enables the automatic calculation and adjustment of correction factors The automatic process is based on the comparison between the values as sessed by the VMF 1000 which as the case may be have to be corrected and a known increment which may be given for example by a gauge block Gauge block Before adjusting the sensitivity it is indispensable to enter the parameter AG block This may be the difference of two gage blocks that are used for the following calibration Adjusting the sensitivity 1 Actuate the key Konfig on the rear of the instrument 2 Select the function Sensit with V or A and start it with P 3 Now G bl 1 will be displayed together with the value 0 0 After having placed the first gauge block into the measuring device the first measurement can be started with B
8. raw value of the transducer On the right large display the correction value is displayed The correction value is edited by means of P A and V Correction value table for transducer B starts the automatic correction The correction is done separately for each transducer in and direc tion step by step linearization of the positive direction of transducer A Clears the linearization tables For each transducer the and direction is cleared separately Key clears the positive direction of the linearization table for transducer A The prompt Clr has to be confirmed by V otherwise the function is aborted without clearing the table same for the negative direction P prints the correction tables via the RS232 Printer 42 Sensitivity Sensit G block 1 0 0 G block 2 xxx x OK Transducer symmetry Symmetry OK The transducer sensitivity is corrected by comparing with two known values and changing the factors Factor A and or Fac tor B Press key P After having placed the first gauge block into the measuring de vice the first measurement can be started with B gt In the display the difference step of the two gauge blocks AG block appears Place the second gauge block into the measuring device and start the second measurement with B By means of this confirmation the instrument returns to its basic condition Erroneous inputs are signaled by the message Stop
9. 6 11 Notes on maintenance Cleaning The housing may be cleaned with a wetted piece of cloth Acetone and ace tone compounds are never to be used Exchanging fuses Switch off the instrument Pull the mains cable on the rear of the instrument Pull out the fuse carrier by means of a screwdriver Replace defective fuse by fuses of the same type 315 mA time lag Opening the instrument For reasons of security all modifications to and interventions in the instrument may only be carried out by trained personnel on the express written approval of the manufacturer 6 12 Exchanging the software The software of the VMF 1000 is stored in 2 EPROMs Updates must be car ried out by trained personnel by exchanging both EPROMs Besides the rele vant safety provisions the following instructions must be complied with in par ticular Before opening the unit disconnect it from the power supply by pulling the plug from the mains socket outlet EPROMs and other components in the instrument may be destroyed or damaged by electrostatic charges It is also possible that the instrument is damaged only partially such that defects manifest themselves only after a couple of weeks or months Therefore when opening or repairing the unit always use conductive pads and grounding straps for your wrist After exchanging the software the standard configuration has to be loaded with S config the instrument settings changed as requi
10. B gt Cir 4 gt Clears positive part of the correction table for transducer A Confirm with U or abort with Result Clears negative part of the correc tion table for transducer A Confirm with J or abort with Result Clears positive part of the correction table for transducer B Confirm with U or abort with Result Clears negative part of the correc tion table for transducer B Confirm with U or abort with Result Prints the correction table for A und B via printer port 32 6 6 Instrument configuration The instrument configuration level is reached by pressing the key Konfig on the rear of the instrument or provided that the settings are not blocked by means of Code by simultaneously actuating the keys F1 and F2 Now the desired parameter can be selected with key A forward scrolling or V backward scrolling There are three possibilities for setting or changing parameters 1 Parameters with several defined adjustments Adjust with A or V Return with A or V 2 Parameters to which numerical values are to be assigned Adjust with A and WV Return with A or V 3 Parameters with several assigned sub parameters Adjust wih V gt A and V Return with A As a rule the instrument configuration level is left by pressing the key RESULT Directly executed functions form an exception to this rule for they automatically entail leaving the instrument configuration 3
11. In case the instrument is in its basic condition the actuation of one of the keys A or V causes the valid indication range to be displayed for about two sec onds If during these two seconds the keys are pressed again the subsequently smaller or larger indication range is selected Continue pressing these keys until the desired range is adjusted It is no longer possible to change the indication range via the keyboard if the configuration locking is activated Lock on 20 5 3 Measuring results By repeatedly pressing the key RESULT the following measuring results can be indicated measuring result here describes the result of a dynamic meas urement i e a number of individual measuring results COMBINE current measuring result as per selected transducer combina tion MAX maximum result during measurement maximum value MIN minimum result during measurement minimum value MX M 2 arithmetic mean value of maximum and minimum result MAX MIN difference between maximum and minimum result MEAN mean value of all individual measuring results assessed during the measuring time Tm Provided that the statistical evaluation was activated by the function Stat on the statistical results of a measuring series can be indicated as well n number of measurements or results xn last measuring result x x x bar mean value of all results of all measurements S standard deviation of these values from the mean v
12. Inquiring measuring values here 896 3 um Host computer M1 lt CR gt VMF 1000 M1 896 3 lt Tcr gt 48 An adjustment command starts with a letter followed by a parameter number and the value of the parameter The parameter number and the value are separated by a comma Example Adjusting the measuring range to 2 000 um Host computer P1 2000 lt CR gt VMF 1000 P1 2000 lt Tcr gt Several functions are activated by a single letter Example Adjusting the indication to 0 or to the master value Host computer Z lt CR gt VMF 1000 Z lt Tcr gt Parameters and measuring values are always transferred as metric values um even if the instrument is adjusted to inch NOTE In the provided examples the command sequence sent by the host computer which is completed with lt CR gt is as a rule given on the left hand side while on the right hand side the command sequence of the VMF 1000 which ends with lt Tcrs gt is provided Activating the interface software The command I lt CR gt activates the interface software and causes it to output an identification text which among other data contains the version number of the software Example l lt CR gt I VOLLMER GMBH VMF1000 2 12 lt Tcr gt The interface software only has to be activated if it has been previously deacti vated with X lt CR gt Deactivating the interface software After having deactivated the interface software with the command X lt CR gt th
13. The in strument also returns to its basic condition and the procedure must be repeated completely NOTE In case one of the probe combinations A A B or B was se lected only the sensitivity of the transducer in question will be corrected For sum or differential measurements the sensitivi ties of both transducers are influenced Correct results can only be obtained if the two transducers are deflected to the same extent The sensitivity of transducer A will be adjusted to that of transducer B Here Factor A will be changed as re quired while Factor B remains unchanged Press key gt Deflect the transducer over the range to be balanced First the VMF 1000 recognizes the range limits by the re version of the transducer direction of movement During the transducer deflection measured values are as sessed over this range and a correction factor is calcu lated for transducer A This process is repeated until two successive correction values differ by less than 0 0001 Only then will Factor A be changed The symmetry function is ended successfully The in strument returns to its basic condition 43 Configuration parameter Menu Settings Indication Indication Configuration lock Lock off Code Block L 30 71 Lock on Lock off Printing instrument PrntConf configuration Standard configuration S config Yes J Stop Explanations Parameter settings 1 on 0 off Any code number between 00
14. Tol m 1 the numerical display and the dial type indicator indicate the same results m 2 the dial type indicator indicates the current measuring result irrespective of the indication on the nu merical display Example P83 4 2 lt CR gt P83 4 2 lt Tcr gt Sets the indication range to 30 um The dial type indicator indicates the measuring value according to the set combi nation while the numerical display provides the result ad justed with the RESULT key 57 Maximum number of measurements P84 lt CR gt P84 x lt CR gt Example P84 50 lt CR gt Language P85 lt CR gt Example P85 3 lt CR gt Unit P86 lt CR gt Example P86 2 lt CR gt Brightness P87 lt CR gt P87 1 lt CR gt Hysteresis for tolerance monitoring and classification P90 xx xx lt Tcr gt P90 xx xx lt Tcr gt P90 lt CR gt P90 xx xx lt CR gt Example P90 10 55 lt CR gt Nominal value P91 lt CR gt Example P91 2E3 lt CR gt P84 x lt Tcr gt P84 x lt Tcr gt P84 50 lt Tcr gt P85 x lt Tcr gt P85 3 lt Tcr gt P86 x lt Tcr gt P86 2 lt Tcr gt P87 x lt Tcr gt P87 1 lt Tcr gt P90 10 55 lt Tcr gt P91 xxx lt Tcr gt P91 2000 lt Tcr gt Measuring value integration time Ti P92 lt CR gt P92 xxx lt CR gt Example P92 1 6E 3 lt CR gt P92 xxx lt Tcr gt P92 xxx lt Tcr gt P92 0016 lt Tcr gt Inquires n max Sets n max to x Sets n max to 50 Inquir
15. as signed to the same input the statistics will be printed out before it is deleted Example 1 Strt Stp Clr MxMn Prn m va Prnt Stat Clr stat 20 3 When activating the input 11 for the first time the measur ing time will be started and the MAX MIN and MEAN value memories deleted When activating it again the measuring time ends and the measuring result printout starts When activating input number 2 the statistical results will be printed out before the statistical value memory is de leted Via input 13 the acceptance of the master value is achieved NN e aa Range 0 999 99 mV um or 0 999 99 V full scale 41 Configuration parameter Menu Settings Indication Indication Analogue output mode DAC rel DAC fix Gage block AG block Transducer Correction ProbCorr A 3036 4 B 3033 1 AutoCorr Corr A Corr A Corr B Corr B Clear Clear A Clear A Clear B Clear B Print Explanations Parameter settings 1 on 0 off The output voltage of the analogue output depends on the range of the analogue instrument The output voltage is independent of the range of the analogue instrument Step difference of two gage blocks Used for sensitivity calibration and transducer correction Corrects linearizes the curve of transducer A and trans ducer B respectively View edit correction table of transducer A The number at the right of the A is the uncorrected
16. automatically This cycle will be repeated until the key START is pressed again or the number of measurements n equals the value entered for n max Tm and Tp can be adjusted to values in a range between 0 01 and 999 99 seconds Computer and printer interface are switched off Computer and printer interface are switched on only printer interface is switched on only Computer interface is switched on 0 1 switches the computer interface on off Data transfer rate Baud rate Record type X ON X OFF No record no function Data format parity check 8 data bits no parity check 1 stop bit 7 data bits no parity check 2 stop bits 7 data bits odd parity check 1 stop bit 7 data bits even parity check 1 stop bit 1 no function 39 Configuration parameter Printer parameters Menu Indication Prnt Para Settings Indication Printer 0 1 Sel prnt Num 0 1 Combine 0 1 MAX 0 1 MIN 0 1 MX M 2 0 1 MAX MIN 04 MEAN 0 1 n 0 1 xn 0 x 0 1 s 0 1 Xmax 0 1 Xmin 0 1 R 0 1 Cust Tx Input 0 56 Charac Format 0 1 Explanations Parameter settings 1 on 0 off Switches the printer interface on off Selection of the res to be printed out from the below list Result number Measuring result acc to transducer combination Maximum value of a dynamic measurement Minimum value of a dynamic measurement Mean value of the maximum and minimum value of a dynamic measurement Difference between the
17. function Function is still active Function has been terminated successfully Inquires the results to be indicated with RESULT x 1 result of the transducer combination X 2 mean value over the meas time Tm MEAN x 3 minimum value over the meas time Tm MIN x 4 maximum value over the meas time Tm MAX x 11 MAX MIN X 12 MAX MIN 2 Statistical results 80 number of measurements n X 82 statistical mean value 83 statistical minimum value Xmin 84 statistical maximum value Xmax x 86 standard deviation s X 88 range Xmax Xmin x 89 last statistical result With the key RESULT it can be selected between indicating the combination MAX MIN or R Asks for the result to be printed out after the end of the measuring time or after activating Prnt Stat x see P60 Complement to the selection of the results to be printed out P61 lt CR gt P61 x1 x2 xn lt Tcr gt Inquires the selection of the results which are to be printed with PrntStat or after the measuring time has run out numbers of selected results result of the probe combination mean value over the measuring time MEAN minimum value over the measuring time MIN maximum value over the measuring time MAX 11 MAX MIN 12 MAX MIN 2 tatistical results 80 number of measurements n 82 statistical mean value 83 statistical minimum value Xmin 84 statistical maximum value Xmax 86 standard deviation s 88 Range range Xmax X
18. key for changing the instrument configuration Recessed grip for transport Type plate Analogue output and digital I O RS232 Interface Printer Analogue output Socket for connecting transducer B Socket for connecting Transducer A Mains connection Mains fuse 315 mA time lag On Off switch Voltage selector To each key three function levels are assigned gt 0 Set a Test b RESULT F1 aun Y START Se ht ee Setting Configuration at ACatalogueV Position A Digit Keys on the VMF 1000 Fig 3 The upper function level is reached by actuating key The intermediate function level Measuring Evaluating is active directly after switching on The lower function level Setting Configuration is activated either by actuating the keys and SETTING or by actuating the Konfig key cf fig 2 point 4 on the rear side of the instrument The setting configuration indicator cf fig 1 point 6 starts to light up As a rule the keys of the VMF 1000 are actuated by only slightly touching them The functions of the individual keys will be presented graphically on the follow ing pages By repeatedly pressing certain keys the parameter catalogue will be scrolled The lower function level can be abandoned at any time with RESULT START RESULT starts the storing of MAX MIN and MEAN values taking the time T resetting the memories opening the memories accepting meas v
19. maximum and minimum value of a dynamic measurement Mean of all individual values assessed during the meas uring time Tm Number of measurements or results Last measuring result always switched off x bar arithmetic mean of all meas results Standard deviation Maximum value Minimum value Range Xmax Xmin It is possible to select as many results as desired The width of the paper to be used for printing however has to be taken into account Customer specific text By means of a terminal or a com puter it is possible to enter a text via the RS 232 C inter face which then serves as record head The default text of the standard configuration how ever will be overwritten Connect the terminal or the computer to the serial interface of the VMF 1000 Set the Printer parameters Prnt para to Cust Tx Press key P The entered text is transferred from the computer to the VMF 1000 In the numerical display each char acter of the text is counted Press key PB as soon as the text was transferred completely Use the parameter setting Save to permanently store the customer specific text The above procedure can be aborted with RESULT Formatted output on the printer 0 unformatted measuring record without record head and form feed 1 measuring record with record head and form feed FormFeed 40 Peripheral instruments Sensitivity of analogue output Ext para Ext mode Prg
20. n 4 MAX value over the meas time Tm n 11 MAX MIN value over the meas time Tm n 12 MAX MIN 2 value over the meas time Tm Example P80 2 lt CR gt P80 2 lt Tcr gt Means that the mean value over the measuring time Tm will be output Selecting the results to be evaluated statistically P81 lt CR gt P81 n lt Tcr gt Inquires the result s to be evaluated statistically P81 n lt CR gt P81 n lt Tcr gt Adjusts the result s to be evaluated statistically n 1 result of the transducer combination n 2 mean value over the meas time Tm n 3 MIN value over the meas time Tm n 4 MAX value over the meas time Tm n 11 MAX MIN value over the meas time Tm n 12 MAX MIN 2 value over the meas time Tm Example P81 2 lt CR gt P81 2 lt Tcr gt Means that the mean value is to be evaluated statistically Printing deleting switching on and off the statistics P82 lt CR gt P82 s lt Tcr gt Inquires the status of the statistics P82 s lt CR gt P82 s lt Tcr gt s 0 statistics switched off s 1 statistics switched on s 2 delete last x equivalent to Clr xn s 3 delete statistics completely equivalent to Clr stat s 4 print statistical results Indication range of the dial type indicator P83 lt CR gt P83 n m lt Tcr gt Inquires the adjusted indication range and the selected in dication P83 n m lt CR gt P83 n m lt Tcr gt Adjusts indication range and indication n 1 1um n 2 3 um n 3 10 um n 9 10 000 um n 0 Rel
21. 00 and 9999 can be en tered Safety inquiry In case key WV is pressed the configuration setting is blocked and Block zero setting is displayed If the zero setting key master is also to be blocked press V again Actuating the keys V or A blocks only the instrument configuration It is no longer possible to change parameters and set tings In order to guarantee configuration locking even af ter switching on again it must be stored permanently by means of function Save The configuration locking is cancelled by entering a new code number All settings of the VMF 1000 can be printed with PrntConf If the printer interface is deactivated it is activated for the duration of the printing afterwards it is deactivated again Start printing with B gt On delivery the permanently stored standard configura tion is active This configuration can be recalled at any time although measuring and configuration parameters could have been changed and stored permanently In order to re main active even after switching on again the standard configuration has to be stored by means of the function Save Only on doing so will be overwritten the cus tomer specific configuration If however the standard configuration is called up with out being saved again the customer specific configura tion is again valid after switching on Loading the standard configuration Press key gt If the now appearing safety inquiry is answ
22. 3 List of configuration parameters The following list shows the standard configuration to which the VMF 1000 is ad justed on delivery Parameter accessible by function set Measuring range MR 2000 Transducer combination C A B Adjusting the sensitivity of transducer A Factor A Adjusting the sensitivity of transducer B Factor B Master Master Nominal value Nom Val Delay time Td s Measuring time Tm s Pause time betw cyclical repet of meas Runs Tp s Number of results to be evaluated statistically n max The parameter Tm will only appear if the Konfiguration of the measuring time is set to STRT Tm or STRT Tp The parameter Tp will only appear if the Konfiguration of the measuring time is set to STRT Tp Measuring range The instrument features two measuring ranges namely MR 2000 measuring range 2 000 um resolution 0 1 um MR 200 measuring range 200 um resolution 0 01 um Transducer combination C A B Select the transducer with B gt and adjust the sign with Y On entering 0 the transducer in question is not taken into consideration Adjusting the sensitivity Factor A Each probe value is multiplied with an individual factor Factor B Thus sensitivity deviations can be corrected On entering 0 0 the probe in question is not taken into considera tion 34 Parameter Indication Tolerance monitoring Selecting the result of tolerance monitoring Hysteresis Numbe
23. B in the negative direction The change of 25 um shows that the transducer moved in negative direction i e transducer B is too sensitive The error relative to the entire stroke is oes 0 006361 This means that transducer B features an oversensitivity of 0 64 or the other way round transducer A features an insensitivity of 0 64 Balancing can now be achieved by either changing Factor A or Factor B Factor A new Factor A old 1 006361 or Factor B old Factor B new 1 006361 28 Balancing the symmetry automatically Balancing the symmetry automatically is based on the manual process All nec essary measurements calculations and settings are automatically carried out by the VMF 1000 It only has to be made sure that the transducers are deflected simultaneously Balancing the symmetry automatically can be started either via the configuration catalogue function Symmetry or the computer interface P53 1 Depress the key Konfig on the instrument s rear 2 Use the key V or A to select the function Symmetry and press to start it 3 Repeatedly move both transducers together from stop to stop For every second inversion of the direction of movement a horizontal line will be indi cated on the numerical display Throughout the first phase the range to be balanced will be determined The VMF 1000 recognizes the range limits by the inversion of transducer signal A peak d
24. Operating Instructions VMF 1000 Contents 1 ATFOGUCTION EEE AEA E acd adnate Hace eeicdieaatiadat ape teateas 3 2 Operating clement cccccceccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeteeeees 4 3 Putting into Operation ececceeececeeeeeeeeeeeeeeeeeeeeseeetaeeeeeeeeeeeees 8 4 Adjusting the measuring CONAItIONS ccceeceeeeeeeeeeeeeeeeeee 9 4 1 Master Valu i cccccccccccstiscdececeseetecdaps teed csedecesanatietieiaiciiecetanee 10 4 2 Nominal value c cccceceeeceeecceeeeeeeeeseeneaeeeeeeeeeeseseeeeeeeeteees 10 4 3 Tolerance monitoring cecceeeeeceeeeeeeeeeeeeeeeeeeeeeeeeaeeeeeeeeeeees 11 4 4 Classification ccc ccssecdecegetessseduta tends ceesteccasavesteeieisiiscetaarees 13 4 5 Correction factors casei raina e ocean aad E E aa teed 14 4 6 Measuring range ssssssssessseseseerrrntessrinrnrtnsserrrtrnnnnsereennnneneent 15 4 7 Start stop measuring time pause delay ceeeceeeeeees 16 4 8 Storing the settings permanently cccceeeseeeeeeeeeeeeeteees 18 5 Measurement and evaluation ccececeeeeeeeeeeeeeeeeeeeeeeeeee 19 5 1 Checking the transducer signal indication ceee 19 5 2 Indication ranges of the analogue instrument eee 20 5 3 Measuring reSults ccccccceceeeeeeceeeeeeeeseeeneeeeeeeeeseseteeeeeeeeteee 21 5 5 PrintOUtSwsisi a cae i eet A eng NEE TEATA 23 65 ANNEX airi a one eaten N 24 6 1 Analogue OUt P
25. UL cece cece cece eeeeeeeneeeeeeeeeeenaeeeeeeeeeeeeeaaees 24 6 2 Digital inputs and outputs cece eeeeeee cece eeeeeneeeeeeeeeeeenaees 25 6 3 Adjusting the Sensitivity cece ceeeeeeeeeeeeeeeeeeeeeeeeeeeeeenees 27 6 4 Balancing the Symmetry ccccccceeeeeeeeeeeeeeeeeneeeeeeeteeeeaees 28 6 5 Linearization of transducer characteristics 0 ccceeee 30 6 6 Instrument Configuration cccccceceeceeeeeeeeeeeeteeeeeeeeeeeeaees 33 6 7 JFUNCION Key Sa arda ae aaar Moa ae 46 6 8 Serial interfaces ccccceccceeeeceeeeeeeeeeeeeeeeeeeeeneaeeeeeeeeseeeeaees 47 6 9 Functional diagram of the VMF 1000 ccccccseeeeeeeneee 60 6 10 Error liStis ei a a anaes Fen RE ee 61 6 11 Notes on maintenance c ccccecceeeeeeeeeeeeeeeeeeeeeteeeeeeeeeeseaees 62 6 12 Exchanging the Software cccccccecsseeeeeeeeeeeeeeneeeeeeeeeeeeaees 62 i Technical Data arieni eiaa a 6 eters a Eee 63 Oct 30 2008 These operating instructions apply for the software version 2 12 1 Introduction The measuring and control instrument VMF 1000 in combination with either one or two transducers is used for acquiring thickness Measuring values or calculated results are output as exact numerical values on a seven digit display and in addition as scale values on a dial type indicator This results in optimum read off possibilities for all sorts of application For reading off measuri
26. above switches off tolerance monitoring Adjusts tolerance monitoring for internal measurements the lower tolerance limit to 500 0 um and the upper one to 1 000 0 um Inquires the set number of classes xx number of classes Adjusts the number of classes xx and divides the range between the upper and lower tolerance limit into xx classes of equal width Switches off the classification Inquires the character sequence of end mark lt Tcr gt Sets the character sequence of the end mark to lt Tcr gt In place of the control character lt CR gt the control character se quence xxx yyy is sent xxx and yyy are the decimal equiva lents of the control characters Sets the end mark sequence lt Tcr gt to the ASCII control characters lt LF gt dec 10 and lt CR gt dec 13 Asks for the default measuring value type which is to be output in the asynchronous mode or in case of measuring value inquiries ac complished with M lt CR gt Sets the default measuring value type n 1 result of the transducer combination n 2 mean value over the meas time Tm n 3 MIN value over the meas time Tm n 4 MAX value over the meas time Tm Continue as described in Inquiring measuring values and results See above 53 Changed parameter settings P34 lt CR gt Example P34 lt CR gt A lt CR gt Transducer combination P50 lt CR gt P50 1 2 lt CR gt P50 1 lt CR gt P34 n lt Tecr gt P34 83 lt T
27. alue Xmax maximum individual measuring result Xmin minimum individual measuring result R range difference between the largest and smallest result of all measurements Xmax Xmin The measuring results to be indicated have to be selected beforehand in the instrument configuration For all statistical evaluations it is necessary to beforehand set Stat on in the instrument configuration and select a measuring result e g MAX MIN 21 Select Restrict Print Delete 5 4 Statistics One of the results Combine MAX MIN MX M 2 MAX MIN or MEAN can be evaluated statistically The statistics can be run for a maximum of 25 000 measurements After the end of the measuring time Tm or the activation of input Accept value into statistics the result will be accepted into the statistics The number of the already acquired results n will be indicated for about two seconds Actuate the key Konfig on the rear of the instrument and select the configuration parame ter Stat on Afterwards choose Sel stat and depress the B key Now use V to single out the measuring result for which the statistics is to be run and set it to 1 by means of the keys A and V With parameter n max it is possible to restrict the number of measurements for which the statistics is to be run As soon as the preset number of measurements is reached no more results will be ac cepted into the statistics Moreover it is no longer p
28. alues closing the memories Statistics sending results to the statistics sending results to the interface Depending on the configuration the storing is either completed after the preset measuring time Tm or by actuating the START key again indicates the results Further actuation causes indication of further results e continuous measuring values e MAX e MIN e MAX MIN 2 e MAX MIN e MEAN e number of values n lt lt e last value xn ney e mean value x bar lt q _ __ e standard deviations lt e maximum value Xmax lt e minimum value Xmin R range Xmax Xmin lt 4A L A De Cr ie displays the current range of the dial type indicator for about 2 seconds If the keys are actuated again during these 2 seconds the range is changed A 10 000 um 3 000 um e 1 000 um 300 um 100 um 30 um e 10 um 3 um y 1 um executes SPECIAL FUNCTION 1 executes SPECIAL FUNCTION 2 X J a EN SETTING sets the current measuring value to the value master value or co indicates the individual probe value directly without master value gt 9 lt without Factor A without combination without nominal return with RESULT or START Av E starts setting o
29. at any time at different points in order to touch up the correction of the curve The precision of the calculation of the inclination is only influenced by the differ ence of the two measurements with and without gage block not by the absolute value of the measurement Note If the error message Error appears when leaving the con figuration at least one table entry has been calculated out of range The specific entry has to be decreased or the table has to be cleared by Clear A or Clear A The functions necessary for the linearization are called via the configuration menu ProbCorr ProbCorr e A XXXX X e A yyyy y e B XXXX X e B yyyy y y AutoCorr Korr A M1 0 M2 xxx M1 0 Korr A M1 0 M2 xxx M1 0 Korr B M1 0 M2 xxx M1 0 gt y uuy YUUY vU Entry of the linearization function Correction table for channel A With the right arrow keys and U the correction points can be selected and if necessary changed with gt Correction table for channel B Linearization of transducer A with gage block in direction Linearization of transducer A with gage block in direction Linearization of transducer B with gage block in direction 31 Korr M1 M2 M1 Clear Print B 0 gt XXX gt 0 gt Linearization of transducer B with gage block in direction gt Clear A gt Clr 2 4 y Clear A gt Cr V y Clear B gt Cir v Clear
30. cr gt A lt Tcr gt P34 19 lt Tcr gt P50 n m lt Tcr gt P50 1 2 lt Tcr gt P50 1 lt Tcr gt Transducer combination correction factors P51 lt CR gt P51 tttt lt CR gt Example P51 0 5 X1 lt CR gt Example P51 X1 X2 lt CR gt Correction factors P52 n lt CR gt Example P52 2 lt CR gt P52 1 3 2 2 5 lt Tcr gt P51 tttt lt Tcr gt P51 tttt lt Tcr gt P51 5 X1 lt Tcr gt P51 1 X1 1 X2 lt Tcr gt P52 n xxx x lt Tcr gt P52 2 1 992 lt Tcr gt P52 1 3 2 1 5 lt Tcr gt Inquires if parameters were changed by manual settings n number of the changed parameter n 0 no parameter was changed In the asynchronous mode any parameter change is reported immediately Means that the range of indication was changed Switches on the asynchronous mode Means that the master value was accepted Inquires the transducer combination n 1 A n 1 A m 2 B m 2 B Sets the transducer combination to A B Sets the transducer combination to A Note In contrast to function P51 the correction factors are not influenced Inquires transducer combination and correction factors in the form of an equation The transducer combination is presented by the symbols X1 or X2 for transducer A or B respectively and is multiplied by the related correction factors Adjusts transducer combination and correction factors Note Function Z accepting the master value will be cancelled
31. ctor and unit Outputs the obtained measuring values in millimetres after conver sion with factor 0 001 Inquires the resolution of the numerical display 6 5 number of digits not adjustable x number of digits following the decimal point For the 200 um measuring range 0 2 digits can be set for the 2 000 um measuring range 0 1 Adjusts the maximum resolution Inquires the setting of the combination indication x 0 combination without master value xX 1 combination master value Sets the indication of the combination value to combination with master value Inquires the status of the zero setting value x 0 deactivates the zero setting value x 1 activates the zero setting value Deactivates the zero setting value Inquires the master value Adjusts the master value Sets the master value to 530 um NOTE In the provided examples the command sequence sent by the host computer which is completed with lt CR gt is as a rule given on the left hand side while on the right hand side the command sequence of the VMF 1000 which ends with lt Tcr gt is provided 52 Measuring and pause time start mode P10 lt CR gt P10 lt CR gt P10 15 lt CR gt P10 8 1 5 lt CR gt Delay time P11 lt CR gt P11 1 2 lt CR gt Tolerance limits P21 lt CR gt P21 xxx x yyy y lt CR gt P21 lt CR gt Example P21 1E3 500 lt CR gt P10 xxx x yyy y lt Tcr gt P10 lt Tcr gt P10 15 lt Tec
32. e Functions R lt CR gt R lt Ter gt Resets the VMF 1000 The instrument returns to the basic state which was active after switching on Z lt CR gt Z lt Tcr gt Sets the indication to zero or to the entered master value respectively NOTE In the provided examples the command sequence sent by the host computer which is completed with lt CR gt is as a rule given on the left hand side while on the right hand side the command sequence of the VMF 1000 which ends with lt Tcr gt is provided Outputting a value on the numerical display T1 xxxx lt CR gt 71 xxxx lt Tcr gt Indicates the value on the numeri cal display only numerical values with sign and decimal point xxxx decimal number with deci mal point max 6 5 digits 1999999 T1 lt CR gt T1 lt Tcr gt Restore previous indication Example T1 123 45 lt CR gt T1 123 45 lt Tcr gt The value 123 45 is indicated on the numerical display Outputting a text on the text indication field T2 xxxx lt CR gt T2 xxxx lt Tcr gt Indicates a text on the text indica tion field XXXX max 8 characters ASCII text The entered text is shown left justi fied on the text indication field T2 lt CR gt T2 lt Tcr gt Restores the previous indication Example T2 Hallo lt CR gt T2 Hallo lt Tcr gt The text Hallo appears on the text indication field Inquiring measuring values and results In the measuring range 200 um two digits follow the decimal poi
33. e VMF 1000 ignores any information sent by the host computer The only excep tion to the above statement is the command I lt CR gt Example X lt CR gt X lt Tcr gt Control commands Synchronous asynchronous mode of operation After having activated the VMF 1000 by means of the command I lt CR gt it is automatically switched to the synchronous mode of operation i e the VMF 1000 does only send data if the host computer explicitly requests information In addition it is possible to adjust the asynchronous mode of operation during which the instrument sends data on own initiative e g the measuring value after the measuring time Tm or changes in the instrument settings P34 A lt CR gt A lt Tcr gt Sets the asynchronous mode of operation switches off the synchronous mode S lt CR gt S lt Tcr gt Sets the synchronous mode of operation switches off the asynchronous mode 49 Starting ending the measuring time Starting and ending the measuring time can be accomplished in three ways For adjusting the measuring time see P10 F1 lt CR gt F1 lt Tcr gt Starts a measuring time the end of which is known equivalent to the setting STRT Tm F2 lt CR gt F2 lt Tcr gt Starts a measuring time of unknown end equiva lent to STRT man or STRT Tp F3 lt CR gt F3 lt Tcr gt Ends the measuring time in case of setting STRT man and cancels the measuring or pause time when setting STRT Tp is ac tiv
34. e a nominal value of 122 050 mm and an indicated measuring result of 85 um Use the function SETTING to select parameter Nom val and enter the nominal value in micrometers i e 122 050 um The numerical display now indicates the real actual value of the workpiece namely 122 135 0 um while the dial type indicator continues to display the de viation from the nominal value i e 85 um NOTE The range of indication of the numerical display is limited to 1 999 999 um In case this range is exceeded 1 or 1 respectively will be indicated This is the reason why for large absolute values the resolution must be reduced to 1 um 10 4 3 Tolerance monitoring Tolerance monitoring means that all measuring values are compared with the tolerance limits Differently colored pilot lamps indicate whether the measuring value exceeds the upper tolerance limit lies within the tolerance zone exceeds the lower tolerance limit For tolerance monitoring one of the measuring results below may be chosen COMBINE current measuring value acc to probe combination MAX maximum value during a measuring series MIN minimum value during a measuring series MX M 2 arithmetic mean value of MAX and MIN MAX MIN difference between MAX and MIN MEAN mean value of all measuring values gathered in a measuring series The tolerance limits which can be adjusted in a range between 199 999 9 um and 199 999 9 um are selected v
35. e measuring range but always with the selected polarity It is recommended to start with the first point close to the transducers zero 1 On the left side of the display appears M1 0 und on the right the ac tual transducer position 2 Set transducer to approx 0 0 without gage block 3 Accept M1 with gt 4 On the display appears M2 300 for example if 300um has been en tered as Gage block 10 5 Insert gage block between adjustable Stop and transducer Don t move the spindle position of the adjustable stop Accept M2 with gt 6 The inclination of the curve is calculated and all entries of the linearization table are corrected until the end of the measuring range 7 Again in the display appears M1 0 The gage block has to be re moved and the transducer touches the adjustable stop The adjustable stop now has to be moved to that position which the transducer had before with the gage block in this example 300 um 8 Repeat step 3 to 6 up to the positive end of the measuring range The cor rection of each step starts with the correction point following the measuring value M1 30 9 After the positive part of the curve has been linearized the same procedure has to be repeated for the negative part of the curve Please note in case of the negative part the first measuring has to be done with gage block and the second measuring without gage block The linearization may be repeated
36. e number of measurements to be evaluated statistically As soon as the value input for n max is reached it is no longer possible to take measurements Input range 0 25 000 0 no restriction Start the printing out of the statistics by actuating the gt key After printing out the instrument is in its basic condition The last statistical result can be deleted Press key gt Answer the safety inquiry with V The last value will be deleted from the statistics and the instrument will return to its basic condition The statistics can be deleted completely Actuate key gt Answer the safety inquiry with V The statistics will be deleted and the instrument will return to its basic condition 38 Controlling the measuring time Tm Switch on off computer and printer interface Input output parameters for the serial interface STRT man STRT Tm STRT Tp C P off C P on Printer Computer VO para computer Baud 9600 4800 2400 1200 600 300 150 75 Rec XON Rec Rec DIN Char 8n1 Char 7n2 Char 701 Char 7e1 Unit No The measuring run is started with START and ended whenever wanted by actuating START again The measurement is started by pressing the key START and ends automatically after the preset measuring time Tm Measurement starts when actuating the key START and ends after a preset measuring time Tm After a pause time Tp the next measurement is started
37. ector 3 DCD PXD RXD 5 3 o lt ET VMF1000 mE DRE 4 20 PC Printer 9 pin DSR DSR gg 9 pin 25 pin D SUB D SUB GND GND 5 7 RTS gt RTS aaa 8 Te CTS 8 5 o on OAO WO N u Host computer interface Via the host computer interface measuring values and results can be inquired measuring conditions and configuration parameters inquired and programmed and functions activated Nomenclature In the text passages of this section commands will be marked by quotation marks which are not part of the actual command Those parts of the com mands given in parenthesis are optional e g P10 xxx x yyy y lt Ter gt Brackets however signal ASCII control characters e g lt CR gt means carriage return hexadecimal value D dec 13 Command structure Acommand sent by the host computer to the VMF 1000 usually consists of an ASCII character string which must always be completed with the control character lt CR gt Any other control character is ignored by the VMF 1000 The response of the VMF 1000 is completed with the control characters lt CR gt and or lt LF gt After switching on the instrument this end mark desig nated lt Tcr gt here is adjusted to the control character lt CR gt It can be changed by means of the parameter P30 An inquiry command starts with a letter followed by a parameter number Example
38. ent 4 Select further parameters with A or V or conclude with RESULT For both factors the default setting is 1 0000 If several correction factors are at hand for one transducer these are multi plied with each other and then entered as one common Factor A or Factor B Examples for adjusting the correction factor Example 1 Transducer A features a sensitivity error of 0 5 The correction factor Factor A then amounts to 1 1 005 0 9950 Example 2 A reversing lever mounted in front of transducer B causes a demultiplication of 0 75 The value to be entered for Factor B is 1 0 75 1 3333 Example 3 The measuring result of transducer A divided by two is to be indicated The value of Factor A then is 1 2 0 5 Example 4 In a measuring set up the following transducer factors have to be considered in common Correction factor due to the sensitivity error of the transducer 0 9950 Correction factor due to the error caused by the reversing lever 1 3333 Correction factor due to the conversion of the measuring result 0 5 The common correction Factor A then is 0 9950 1 3333 0 5 0 6633 4 6 Measuring range The instrument features two measuring ranges namely 2 000 um resolution 0 1 um and 200 um resolution 0 01 um After actuating the key Konfig on the rear side of the instrument select the measuring range by either calling up the indication MR 2000 by means o
39. ered with V all currently valid settings will be overwritten If these settings were not stored permanently they are deleted irrevocably The instrument returns to the basic condition If the safety inquiry is to be answered in the negative either RESULT leaving the configuration level or one of the keys V or A staying in the configuration level must be actuated 44 Saving the settings Save Save Yes J OK Actuate the key gt If the safety inquiry is answered by pressing key W all current measuring and instrument configuration settings will be stored permanently All settings valid before will be overwritten i e deleted OK will be displayed on the text indication If the safety inquiry is to be left unanswered either actu ate the key RESULT to leave the configuration level or press one of the keys V or A to call up different con figuration parameters 45 6 7 Function keys Frequently used functions or settings can be assigned to one of the function keys thus making them directly accessible The following functions can be assigned to the keys F1 and F2 configuration parameter settings measuring condition settings indication of a certain measuring result i e indication of the probe combi nation or a statistical result for example Function key assignments can be stored as well by means of the function Save Assigning a function to F1 or F2 For assigning any functio
40. es the adjusted language gt al German X 2 English X 3 French Sets the language to French Inquires the set system of units x 1 metric x 2 imperial Adjusts the imperial system of units Inquires the adjusted brightness of the display x 1 4 x 4 brightness 100 Adjusts the brightness of the display to 30 Inquires the hysteresis value Sets the hysteresis value Adjusts a hysteresis value of 10 55 um Inquires the nominal value Sets the nominal value to 2 0 mm 2 000 um Inquires the meas value integration time Ti in seconds Sets the meas value integration time Ti in seconds Sets the measuring value integration time Ti to 1 6 ms Note Function Z accepting the master value will be cancelled i e a master measurement must be taken thereafter 58 Gauge block P93 1 lt CR gt P93 1 lt CR gt P93 1 300 lt CR gt P93 1 yyy y lt Tcr gt Inquires the adjustment of gauge block yyy y entered difference P93 1 1000 0 lt Tcr gt Inquires the actual gauge block difference here 1 000 um P93 1 300 lt Tcr gt Adjusts gauge block difference to 300 um Activating dc voltage carrier frequency By means of this function the carrier frequency system can be switched off such that it is possible to measure dc voltages for test purposes P97 lt CR gt P97 0 lt CR gt Lock P99 lt CR gt Example P99 0 lt CR gt P99 2 lt CR gt Save P100 lt CR gt Error messages
41. etector First the positive than the negative deflection of transducer A will be assessed The difference between the peaks must be gt 500 um for the measuring range gt 50 um for the measuring range of 2 000 um or 200 um This process will be repeated and the largest deflection reduced by 2 5 will then be assumed as travel limit In a second phase the measuring values for determining the correction factor will be assessed For this the transducer signal must exceed the range limits determined before After a 200 ms wait the mean value of the transducer sig nals will be acquired for each transducer individually during the next 400 ms These measuring values are the base of the correction factor calculation Meas value B max Meas value B min Factor A new Factor A old 7777777777777777777777777777777477 77 77 77 7 7 Meas value A max Meas value A min The second phase as well will be repeated and a new correction factor calcu lated until Factor A and Factor B differ by less than one tenthousandth After successfully completing the symmetry process the sensitivities of the two transducers are harmonized with respect to each other The absolute sensitivi ties however are only correct if the sensitivity of transducer B was adjusted correctly before starting the balancing process 29 6 5 Linearization of transducer characteristics The VMF1000 can linearize the characteristics of
42. etting Sets the measuring record to unformatted Inquires the sensitivity settings of the analogue output x number of the analogue output always 1 y sensitivity in mV um or V full scale deflection in case output is dependent on the indication range of the dial type indicator Sets analogue output to 20 mV um Inquires the setting of the zero offset x number of the analogue output always 1 y zero offset has to be multiplied by 4 88 mV Example The analogue output features a zero point error of 74 mV Zero offset y 74 mV 4 88 mV 15 16 This value has to be added to the already adjusted zero offset The adjusted zero offset is 9 4 88 mV The new value to be set is 9 15 24 P71 1 24 lt CR gt P71 1 24 lt Tcr gt 56 Making analogue output 2 dependent on independent of the indication range P78 lt CR gt P78 x lt Tcr gt Inquires the setting of analogue output 2 x 0 dependent on the indication range x 1 independent of the indication range P78 1 lt CR gt P78 1 lt Tcr gt Makes the analogue output 2 independent of the indication range The unit of the factor is mV um Selecting the results for tolerance monitoring and classification P80 lt CR gt P80 n lt Tcr gt Requests the selected results P80 n lt CR gt P80 n lt Tcr gt Adjusts the result to be output n 1 result of the transducer combination n 2 mean value over the meas time Tm n 3 MIN value over the meas time Tm
43. f measuring conditions A i yD Eee Y Scrolling the Selecting Changing catalogue desired position individual digits e Master actual value 199 999 9 199 999 9 um e Nominal value 0 1 999 999 um e Upper tolerance 199 999 9 199 999 9 um Lower tolerance 199 999 9 199 999 9 um a oil enc return with RESULT or START 3 Putting into operation Before putting into operation for the first time by all means check whether or not the voltage was adjusted correctly The set voltage has to agree with the local mains voltage Adjusting the mains voltage 1 Disconnect the mains plug 2 Select the right mains voltage fig 2 item 26 by means of a screw driver An incorrectly set mains voltage may cause instrument defects which might endanger life and health of the operator Exchanging fuses Disconnect the mains plug and pull out the fuse holder Defective fuses may only be replaced by fine wire fuses 5 x 20 mm of the below type irrespective of the mains voltage 315 mA time lag Make sure when connecting the probes to the VMF 1000 that the plugs are always screwed firmly to the corresponding socket on the rear side of the in strument The On Off switch serves for switching on and off the instrument The text indication successively displays the instrument designation VMF 1000 the version number e g Rev 2 12 and Check While these texts are being indicated a self
44. f the keys A or V or changing it to MR 200 by means of the keys A or V In case the measuring range is clearly surpassed the overflow indicator see fig 1 point 3 starts to light up No more measurements are possible thereafter The measuring range is not dependent on the indication range of the numerical display The resolution of all indicated and output values however is determined by the selected measuring range Moreover the overflow indicator takes into account the selected correction factor i e if the correction factor is lt 1 the overflow indicator already starts to light up within the measuring range and vice versa 4 7 Start stop measuring time pause delay The measuring time is the time during which the memories for maximum minimum and mean value are open The open state of the memories is indicated by T being displayed Before new measurements over the measuring time Tm are started the memories are cleared to enable the storing of new values Whenever the measur ing time Tm is ended the result selected via the instrument configuration setting Sel stat is accepted into the statistics memory and the results selected via Sel Prnt are printed out The measuring time can be started and ended in three ways Manual Preset Intervals Pause Delay Interruption 1 Manual control of the measuring time via Start Stop Press the key Konfig on the rear of the instrument and select the parame
45. he setting of the range of the analogue in strument The parameter Fac DAC sets the output voltage in V at the full scale of the analogue output The range is 0 999 99 V full scale Example Fac DAC 8 0 V full scale With a reading of 75 um the ouput voltage at the analogue output will be 75 0 100 8V 6V 6 1 3 Technical data of the analogue output Output voltage range 10 V 10 V Max output current 5MA Resolution 12 Bit 2048 steps Sample rate 156 Hz Load resistance gt 2 kOhm 24 Pin Belegung der 15 pol Buchse k 000000 0 0 Pin name function 1 Uv Internal power supply 6 5 10V 100 mA 2 13 Input I3 3 12 Input 12 4 02 CMOS Ausgang O2 5 GND Signal ground OV 6 la Common anode of 11 13 7 l1 Input 12 8 O1 CMOS output O1 9 03 CMOS output O3 10 N C not connected 11 N C not connected 12 N C not connected 13 N C not connected 14 OV Analog output ground 15 Ua Analog output Signal 6 2 Digital inputs and outputs Inputs Optocouplers with protective resistor and reverse biased diode for reversed pro tection Limit 1 lt 50mA High Vi gt 4 5 V lj Vj 1 2V 1 kOhm Low Vi lt 25V lj Vi 1 5 kOhm Note The electrical isolation does not fulfil safety requirements it only serves for metrological purposes e g for avoiding earth loops All signals have a positive logic and are high active i e an active function On
46. hen printing out individual values the class is printed out in the column following the classified measuring result When calling up the function Prnt stat print statistics a table is printed out which contains the class limits the number of individual values in this class and a histogram with the graphical representation of the distribution function This histogram is deleted on deleting the statistics completely Clr stat Whenever changing the tolerance limits the function Clear statistics has to be called up since otherwise totally wrong classification results will be printed out 4 5 Correction factors The measuring values supplied by the transducers A and B are multiplied indi vidually by an adjustable factor On doing so sensitivity errors of the transducers are compensated for the lever factors of the reversing levers inside the measuring unit are taken into consideration the multipliers for the measuring result are taken into account Note For compensating for sensitivity errors of the transducers the VMF 1000 offers two auxiliary functions see Adjusting the sensitivity and Sym metry Adjusting the correction factors 1 Actuate the key Konfig on the rear of the instrument 2 Select Factor A or Factor B with A or V 3 Set the numerical value with A and V Range 0 99 9999 only positive values are allowed Negative values have to be entered via the probe combination adjustm
47. ia the parameters up Tol upper tolerance limit or low Tol lower tolerance limit The smaller value is always assigned to the lower tolerance limit The larger value is always assigned to the upper tolerance limit If the measuring result lies within the preset tolerances the green pilot lamp see fig 1 point 12 starts to light up thus classifying the workpiece into the Ac cept group In case the upper or lower tolerance limits are exceeded the yellow see fig 1 point 11 or red see fig 1 point 13 pilot lamps light up These lamps indicate Reject components red lamp for which too much material was taken off and Rework components yellow lamp for which not enough material was re moved Which of the two lamps in question will light up depends on the type of meas urement carried out i e an internal or external measurement The type of measurement to be carried out must thus be stated in the configuration settings beforehand 11 Hysteresis of tolerance monitoring Under adverse measuring conditions e g vibrations pilot lamp flickering in case of close to tolerance measuring results is possible In order to avoid this a switching hysteresis can be established Here the preset tolerance limit is extended symmetrically by a certain selectable value If the measuring results now lie within the hysteresis range of the tolerance limits the state of the pilot lamps does not change Basic principle
48. individual transducers The linearization is valid only for one individual transducer After a replacement of the probe it is necessary to linearize the new transducer once Linearization procedure For each transducer a table is created which contains a correction value each 100 um approximately These correction values are subtracted from the meas ured transducer values at the respective position Values in between the correc tion points are interpolated Manual entry of correction data Each transducer has to be linearized individually For that purpose the other transducer has to be replaced by an adjustable stop for example a micrometer The reference for the linearization is a gage block Before the linearization pro cedure starts make sure that no offset has been introduced by the function ze roing and the transducer travel is from 2100 um to 2300 um The size of the gage block has to be entered in the configuration as parameter G BL 10 gage block 10 If necessary the old linearization data has to be cleared see clear linearization table The linearization procedure is started via the function AutoCorr in the menue ProbCorr Next the respective channel and direction sign has to be selected for example Corr A as the linearization has to executed separately for channel A and B and separately for the plus and minus direction The linearization may start at any point inside th
49. inp Str Stp Start Stop M time Clr MxMn Prn m va 20 Clr stat Prnt Stat Hold Fac DAC oo soso to bo to bo ooopoo to bo to bo Defines the signals applied to the peripheral instruments interface Ext Input and output format 0 no input output via the peripheral instruments interface Ext 1 only the inputs are active 2 inputs and outputs are active 3 6 reserved for the connection of a classification de vice 7 reserved for a control instrument assigns one or several of the below functions to the in puts 11 12 13 of the peripheral instruments interface Begin of the measuring time End of the measuring time Measuring time which lasts as long as the signal is sup plied Deleting the MAX MIN and MEAN value memories Printing the measuring value and accepting it into the sta tistics Accept the master value Deleting the statistics Printing the statistics Maintaining the current indication and state of the three outputs For each of the above mentioned functions the input 11 12 13 activating the function must be specified by enter ing one of the digits 1 to 3 If zero is entered the activa tion of the function is not assigned to any of the inputs With the VMF1000 it is also possible to assign several functions to one and the same input Here the functions will be executed in an internally fixed order In case the functions Prnt Stat and Clr stat are
50. min x ROMO x KK KKK YK KK KK X P61 lt CR gt P61 0 1 2 80 82 83 84 85 86 87 88 Adjusts the standard selection 55 Example P61 0 1 2 lt CR gt P61 0 1 2 lt Tcr gt Customer specific text P62 lt CR gt P62 XXX YVY 2ZZ lt TCr gt P62 lt CR gt P62 lt Tcr gt Example P62 86 79 76 76 77 69 82 32 71 109 98 72 13 10 lt CR gt P62 86 79 76 76 77 69 82 32 71 109 98 72 13 10 lt Tcr gt Formatted printout P65 lt CR gt P65 x lt Tcr gt P65 lt CR gt P65 1 lt Tcr gt Example P65 0 lt CR gt P65 0 lt Tcr gt Analogue output sensitivity P70 lt CR gt P70 X Y X Y X lt 1 Cr gt P70 1 20 lt CR gt P70 1 20 lt Tcr gt Shifting the zero point of analogue outputs Offset correction P71 lt CR gt P71 x y lt Tcr gt P71 lt CR gt P71 1 9 lt Tcr gt The measuring record includes the result number the combination and the mean value The statistics print out is deactivated Inquires the customer specific text The ASCII characters are output as decimal numbers such that also control characters for formatting can be inserted into the text The maximum number of characters to be entered is 56 Deletes the customer specific text Enters VOLLMER GMBH lt CR gt lt LF gt as customer specific text Inquires the settings of the measuring record x 0 unformatted measuring record without re cord head and form feed x 1 measuring record with record head and form feed Activates the standard s
51. multiplied in measuring range 200 um by 0 01 256 um in measuring range 2 000 um by 0 1 256 um When the indicated value exceeds 3 276 7 um in the measuring range of 2 000 um or 327 67 um in the measuring range of 200 um the numbers aaaa and bbbb are extended to 6 hexadecimal digits for M98 and to 8 for M99 51 Inquiring and adjusting parameters Measuring range P1 lt CR gt Example P1 2000 lt CR gt Example P1 1 85E 2 lt CR gt Conversion factor unit P3 lt CR gt Example P3 lt CR gt Indication format P5 lt CR gt P5 lt CR gt Combination indication P6 lt CR gt Example P6 1 lt CR gt Zero setting value P7 lt CR gt Example P7 0 lt CR gt Master value P8 lt CR gt P8 xxx x lt CR gt Example P8 530 lt CR gt P1 xxx x lt Tcr gt P1 2000 lt Tcr gt P1 200 lt Tcr gt P3 xxx x tt lt Ter gt P3 1 0E 3 mm lt Tcr gt P5 6 5 x lt Tcr gt P5 6 5 x lt Tcr gt P6 x lt Tcr gt P6 1 lt Tcr gt P7 x lt Tcr gt P7 0 lt Tcr gt P8 xxx x lt Tcr gt P8 xxx x lt Tcr gt P8 530 lt Tcr gt Inquires the measuring range setting Measuring range xxx x um Adjusts the measuring range to 2 000 um Note Function Z set to zero will be cancelled Thus a master measurement has to be performed afterwards Adjusts the measuring range to 200 um The VMF 1000 selects the next larger measuring range Inquires conversion fa
52. n blanking out distur bances with its adjustable parameters can be used for largely suppressing in terferences on the measuring signal Naturally not all instrument functions will be used to the same extent There fore you can tailor the user interface to suit your special demands The possi ble evaluations can be restricted to the indication of the actually necessary re sults If for some special application a not directly accessible function is re quired the function in question may be assigned to a function key The func tion can now be called up at any time by simply pressing this key In spite of its many functions the VMF 1000 is easy to operate such that even non specialists and temporary users can work with this instrument without any difficulties 2 Operating elements Vollmer lamp red 26 25 24 23 T 6000000 j 9000000 O 22 21 ORAON NO Fig 1 Front panel 1 Ana logue Instrument 2 Start Stop indicator 3 Over flow indicator 4 Inch indicator 5 um indicator 6 Set ting Configuration indicator 7 Chan ge over indicator 8 Nu merical display 6 digits sign 9 Keys 10 Text indication 8 digits 11 Pilot lamp yellow 12 Pilot lamp green 13 Pilot Fig 2 Rear panel 14 15 16 RS232 Interface PC Konfig
53. n to one of the function keys the function in question must be called up first If for example the result MAX MIN is to be assigned to F1 select MAX MIN and have it indicated by pressing the key RESULT Press Konfig on the rear of the instrument and keep it depressed Press F1 Prg F1 appears on the text indication for a short time Now this result is directly ac cessible by pressing the F1 key Deleting a function key assignment The assignment of a function key is deleted by keeping the key Konfig on the rear of the VMF 1000 depressed and actuating the keys and F1 or F2 This setting can be stored durably with Save 46 6 8 Serial interfaces The VMF 1000 features two serial RS 232 C interfaces Both interfaces are driven by one common interface controller UART If both interfaces are used at the same time the inputs and outputs of the UART are switched be tween the connectors PC and Printer This results in a quasi parallel use of the two interfaces as data can only be transferred to the computer or to the printer Both interfaces always have the same baudrate and the same data format For the use of both interfaces at the same time the hardware protocol is mandatory The protocol DTR is selected automatically Settings of the serial Interfaces C P off no data is output to the computer or printer Computer Data transfer with computer protocol via interface PC Printer Data transfer to printe
54. ng values the numerical display is favorable for recognizing trends and reversing points the analogue indicator is ideally suited This instrument features a great variety of measuring and evaluation pos sibilities They reach from the simple indication of the directly acquired value over sum and differential measurements with two transducers to the statistical evaluation of complete measurement series including mean value standard deviation and range In addition to the standard measuring range with a reso lution of 0 1 um there is a fine measuring range with the high resolution of 0 01 um Tolerances can be set and precisely monitored The built in pilot lamps which arrange the test pieces into the groups Accept Rework and Reject are used for the visual indication The corresponding information on the test piece can also be transferred via the interfaces to external instruments The VMF 1000 features 2 serial RS232 interfaces where a printer and a host computer may be connected Host computers can not only receive data sent by the VMF 1000 they can also control many of its functions Control units recorders indicating instruments etc can be connected to the analogue out put the parameters of which can be set thus enabling the instrument s com plete integration into the production process This instrument also features numerous auxiliary functions e g symmetry and adjusting the sensitivity of the transducer The functio
55. nt in the measuring range 2 000 um one digit M lt CR gt M1 lt CR gt M2 lt CR gt M3 lt CR gt M4 lt CR gt M11 lt CR gt M12 lt CR gt M80 lt CR gt M82 lt CR gt M83 lt CR gt M84 lt CR gt M86 lt CR gt M88 lt CR gt M89 lt CR gt M98 lt CR gt M99 lt CR gt Mn xxx x lt Tcr gt M1 xxx x lt Ter gt M2 xxx x lt Tcr gt M3 xxx x lt Tcr gt M4 xxx x lt Tcr gt M11 xxx x lt Tcr gt M12 xxx x lt Tcr gt M80 n lt Tcr gt M82 xxx x lt Tcr gt M83 xxx x lt Tcr gt M84 xxx x lt Tcr gt M86 xxx x lt Tcr gt M88 xxx x lt Tcr gt M89 xxx x lt Tcr gt Maaaa bbbb lt Tcr gt Maaaaaa bbbbbb lt Tcr gt default result type selected with P32 here nis the number of the chosen measuring value result of the transducer combination mean value over the measuring time Tm minimum value during the measuring time Tm MIN maximum value during the measuring time Tm MAX MAX MIN MAX MIN 2 n number of values accepted into the statis tics statistical mean value statistical minimum value Xmin statistical maximum value Xmax standard deviation range ultimate measuring result xn individual values of transducer A and B The measuring values are coded hexadecimally and have to be multiplied in measuring range 200 um by 0 01 256 um in measuring range 2 000 um by 0 1 256 um individual values of transducer A and B The measuring values are coded hexadecimally and have to be
56. of hysteresis With a switching hysteresis selected the current and the preceding measuring result determine whether or not a result lies within the tolerance limits Thus the following is valid for measuring results in the range of the hysteresis Any result within the hysteresis range is considered to be within limits if it and the directly preceding result are within limits In case the preceding result was off limits the current result in the hysteresis range is considered off limits as well The switching hysteresis can be adjusted in a range between 0 and 99 99 um after calling up parameter Hystere in the configuration level gt hysteresis low Tol hysteresis without hysteresis Fig 5 Influence of the switching hysteresis on tolerance monitoring The present ex ample shows the course of the measuring values during an external measure ment together with the tolerance monitoring results For reasons of improved il lustration the hysteresis is represented superproportionally large 4 4 Classification The classification always refers to the measuring result which was selected for tol erance monitoring with Sel tol Whenever the control signal accept value into statistics is released or the measuring time Tm ended the results are sorted into groups according to their numerical values Classification i e adjusting the class limits is carried ou
57. or this parameter is 1 um Adjusting the number of classes The range between the upper and lower tolerance limit is divided into n classes of equal width On entering 0 no classification will be car ried out The classification results can be printed out by activating the function Prntstat 36 Measuring value integration time Selecting the results Selecting the mode of indication Resolution of the numerical display Unit Language Ti ms Sel res Sel ins Resol Unit English 1 6 Every 1 6 milliseconds a measuring value will be acqui 3 2 red From these values the instrument calculates a mean 6 4 value which is related to a certain interval of time namely 12 8 the measuring value integration time Ti 25 6 The standard setting for this parameter is 102 4 milli 51 2 seconds 102 4 A reduction of the integration time is reasonable if very 204 8 fast updating of the measuring value acquisition is the 409 6 point milliseconds Prolonged integration times stabilize the measuring value indication in case of vibrations influencing the measuring set up for example Selecting the results which are to be indicated by actuat ing the key RESULT Combine 0 1 Measuring result acc to transducer combination MAX 0 1 Maximum value of a dynamic measurement MIN 0 1 Minimum value of a dynamic measurement MX M 2 0 1 Mean of the maximum and minimum value of a dynamic measurement MAX MIN 0 1 Diffe
58. ossible to start a measurement Only af ter having deleted the statistics completely or at least the last result may commence the next measurement Depress the key Konfig on the rear of the instrument and call up the parameter n max Establish the number of measurements to be evaluated statistically 0 to 25 000 by means of the keys P A and WV Incase 0 is input the number of measurements to be evalu ated statistically will not be restricted i e 25 000 measurements will be taken After having assessed the 25 000th measuring result the instrument does not prevent the acquisition of further results The statistics however will not be carried on Actuate the key Konfig on the rear of the instrument and select the parameter PrntStat The statistical record printout can now be started with B It is possible to delete the last result or the complete statistics The last result xn is deleted as follows Select Clr xn in the instrument configuration and press key P After answering the safety inquiry n 1 1 by actuating the W key the ultimate result will be deleted The complete statistics will be cleared as follows Select Clr stat in the instrument configuration and press key After answering the safety inquiry n 0 by actuating the W key the statistics will be deleted completely The clear functions are executed directly After the deletion the instrument is in its basic condition The above mentioned f
59. play Calibrating the analogue instrument Statistics Selecting the statistical results Number of results to be evaluated statistically Statistical printout Deleting the last statistical result Deleting the statistics completely Bright 4 Bright 4 Bright 3 Bright 2 Bright 1 Cal inst l gt 0 lt l 0 gt l k 0 Stat off Stat off Stat on Sel stat Combine MAX MIN MX M 2 MAX MIN MEAN n max PrntStat Cir xn n 1 Clr stat n 0 Brightness 100 Brightness 75 Brightness 50 Brightness 30 0 Use key for subsequently calling up zero point the 10 right and the left hand end scale deflection 10 If the pointer deflection does not agree with the scale the pointer position can be corrected calibrated electroni cally with the keys A and V This calibration setting is to be stored with Save see below The statistics is switched off The statistics is switched on The statistics can be run for up to 25 000 individual values Selection of the result for which to run the statistics 0 1 Measuring result acc to transducer combination 0 1 Maximum value of a dynamic measurement 0 1 Minimum value of a dynamic measurement 0 1 Mean of the maximum and minimum value of a dynamic measurement 0 1 Difference between the maximum and minimum value of a dy namic measurement 0 1 Mean value of all individual results acquired during the measur ing time Tm Restricting th
60. production based sensitivity tolerances These tolerances cause a system inherent error which is proportional to the common deflection of the two transducers above all in case of sum measure ments This error manifests itself for constant differential signals touching transducer tips master measurement in the form of a continuously increasing or decreasing indication value when moving the transducers together over the entire measuring range This error can be corrected by adapting Factor A and Factor B Balancing the Symmetry manually 1 Determine the stroke of the transducers For this select the transducer com bination A or B Afterwards the transducers have to be moved together from one stop to the other and the values indicated in the stop positions must be noted On the base of these values the stroke will be calculated Example lower stop A 1 980 um upper stop A 1 950 um stroke 1 980 um 1 950 um 3 930 um 2 Adjust the transducer combination for sum measurements A B To gether move the transducers from stop to stop and note the indicated values with the correct sign Here the direction of movement has to be taken into account as well Reading off the values will be simplified if in one stop posi tion the indication is set to zero with the keys and EO Example For a deflection of 3 930 um the indicated value changes by 25 um Here transducer A was deflected in the positive trans ducer
61. r Check b results in the indication of the current probe value without transducer combination without correction factor without master value without nominal value i e aS an unprocessed raw value In this case accept master value has no function Usually these keys are only used during setting up for checking correct trans ducer clamping or ensuring perfect transducer functioning The zero position indicated here marks the electrical zero point of the transducer The transducer signal check is ended on pressing the key RESULT 19 5 2 Indication ranges of the analogue instrument When monitoring measuring runs the fast and reliable determination of trends and reversing points is decisive The dial type indicator and the possibility to choose among several indication ranges makes allowance for the above de mand Usually the dial type indicator and the numerical display provide equal read ings Exceptions to this rule are formed by the setting Sel ins 2 as well as the output of statistical results and nominal values The following indication ranges can be selected independently of the measuring range 10 000 um 3 000 um 1 000 um 300 um 100 um T 30 um T 10 um 3 um 1 um The numerically displayed values are not influenced by the indication range setting of the dial type indicator The resolution of the displayed value is determined by the adjusted measuring range see measuring range
62. r gt P10 8 1 5 lt Tcr gt P11 0 1 lt Tcr gt P11 1 2 lt Ter gt P21 Xxx X yyy y lt Tcr gt P21 Xxx X yyy y lt Tcr gt P21 lt Tcr gt P21 1000 500 lt Tcr gt Classification number of classes P26 lt CR gt P26 xx lt CR gt P26 0 lt CR gt End mark lt Tcr gt P30 lt CR gt P30 xxx yyy lt CR gt Example P30 10 13 lt CR gt P26 xx lt Tcr gt P26 xx lt Tcr gt P26 0 lt Tcr gt P30 xxx yyy lt Tcr gt P30 xxx yyy lt Tcr gt P30 10 13 lt LF gt lt CR gt Default measuring value type P32 lt CR gt P32 n lt CR gt P32 n lt Tcr gt P32 n lt Tcr gt Inquires measuring and pause time XXx X Tm yyy y Tp In case no argument is provided the measuring time Tm is started and stopped manually Sets the measuring time to be started and stopped manually equivalent to setting STRT man Adjusts a measuring time Tm of 15 seconds equivalent to setting STRT Tm Sets the measuring time Tm to 8 seconds and the pause time Tp to 1 5 seconds equivalent to setting STRT Tp Inquires the delay time which in this case was set to 0 1 seconds Adjusts a delay time of 1 2 seconds Inquires the tolerance limits The smaller of the two values is always taken to be the lower toler ance limit External measurement xxx x lower tol limit yyy y upper tol limit Internal measurement xxx x upper tol limit yyy y lower tol limit Adjusts the limits for tolerance monitoring see
63. r of classes Measuring value integration time Selecting the result to be indicated Select display mode of instrument Resolution of the numerical display Unit Language Brightness of the display Calibrating the analogue instrument Statistics Selecting the statistical results Statistical printout Deleting the last statistical result Deleting the statistics completely Controlling the measuring time Tm Input output parameters computer printer interface RS232 parameter baudrate etc Printer parameter Parallel I O Multiplier for analogue output DAC Mode of analogue output Gauge block Probe correction linearization Sensitivity Transducer symmetry Configuration lock Configuration printout Standard configuration Saving the settings Tol off Sel tol Hystere Classes Ti ms Sel Res Sel ins Resol Unit English Bright 4 Cal inst Stat off Sel stat PrntStat Clr xn Clr stat STRT man C P off I O para PrntPara Ext para Fac DAC DAC rel AG block ProbCorr Sensit symmetry lock off PrntConf s config Save 35 Configuration parameter Menu Settings Indication Explanations Parameter settings 1 on 0 off Tolerance monitoring Tol off Selecting the result Sel tol for tolerance monitoring and classification Hysteresis of Hystere tolerance monitoring and classification Number of classes Classes Tol Tol gt l I lt Tol I lt gt l Combine off MAX
64. r via interface PC C P on Data transfer with computer via interface PC and data output to printer via interface Printer If C P on is selected the software supports the computer interface PC with priority If a print command is issued the VMF1000 sets the hardware hand shake line to tell the computer that no more data can be received Then the VMF1000 switches the UART to the printer interface and sends data to the printer The VMF1000 switches back to the computer interface automatically as soon as the printout is completed which is the case after a printing one line of data of a single measurement or b after printing the complete statistic results At the top of a page the transmission of the header lines may be added Pin assignment for the connectors PC and Printer 9 pin D SUB Pin Name RxD TxD DTR GND DSR NC NC NC OAN DOAK W PY Function internal power supply 6 5 10V Data input Data output Handshake output Gnd OV Handshake input not connected not connected not connected only at connector PC Pin 1 of connector PC and Pin 1 of connec tor Ext are wired in parallel The sum of the output currents must not exceed 100 mA 47 Recommended interface cable for the connection of a PC or Printer to the RS232 interfaces of the VMF1000 The Pin numbers refer to the 9 pin connec tor The numbers in parenthesis refer to the 25 pin conn
65. ram of the VMF 1000 zezsu UO OBUUOD JOJUL Loeoipul avuLiajoL Une uonespu L Cra as ee FEE NYAN E ED nsa oS fas 19s g HHA gt SUI OS y 0 y V 40pe 4 A DU 60 Transducer connector 6 pol Tuchel female Fig 16 Pin assignment of transducer sockets A and B 1 Oscillator voltage 2 Voltage input 1 mV um 3 Current input 1 Aum 4 Earthing contact ground 5 Oscillator voltage 6 Voltage input 0 3mV um 6 10 Error list No Error message Cause Remedy 1 Printer Computer 2 Rev Fehl 3 IRam Fehl 4 Prom Fehl 5 ERam Fehl 6 EEP Fehl The data transmission to the printer or the computer is too slow Baud rate too small printer computer program is too slow RAM of the processor is defective EPROM is defective Main RAM defective EEPROM is defective Set a higher Baud rate on the VMF 1000 as well as on the printer computer Use a faster printer Set the printer on line Accept less values time Accept value into statistics input The EPROM has been replaced The standard configuration has to be loaded with s config and saved with save Afterwards the desired standard configuration can be adjusted and if necessary saved with save see section 4 8 Send it in to have it repaired Replace EPROM Replace the RAM chip Send it in to have it repaired 61
66. red and stored with Save 62 7 Technical Data VMF 1000 Dimensions length x width x height Mass Supply voltage Frequency range Power consumption Fuse Adjustable measuring ranges Excitation voltage Carrier frequency Settling time Ti 1 6 ms of the dial type indicator of the numerical display of the analogue output to 70 of final value to 99 of final value of the digital outputs RS 232 tolerances Holding time of the numerical display Deviation spread related to the measuring range of the dial type indicator of the numerical display of the analogue output of the digital outputs Hysteresis of the dial type indicator related to the measuring range Max number of connectable probes without exceeding the deviation spreads Working temperature range Operating temperature range Storing temperature range Analogue outputs Voltage range Sensitivity Admissible load resistor Residual voltage ripple related to the measuring range Reference voltage Cutoff frequency Ti 1 6ms 3 dB Indication ranges of the dial type indicator analogue instrument Scale divisions Measuring value classification Configuration memory Writing cycles Save Interfaces 2 serial interfaces Order no 5312420 120 x 156 x 198 mm 2 3 kg 230 V 10 115V 10 50 60 Hz 10 W 315 mA time lag 2 000 um 200 um 5V 20 kHz 300 ms 400 ms 25 ms 18 ms 25 ms 20 ms 5 ms 200 ms 1 5 0 01
67. rence between the maximum and minimum value of a dynamic measurement MEAN 0 1 Mean value of all individual results assessed throughout the measuring time Tm Statistical results n 0 1 Number of measurements or results xn 0 1 Ultimate measuring result x 0 1 x bar arithmetic mean of all meas results s 0 1 Standard deviation Xmax 0 1 Maximum value Xmin 0 1 Minimum value R 0 1 Range i e difference between the largest and the small est result of all measurements Cp 0 1 Theoretical process capability Cpk 0 1 Actual process capability Cp and Cpk are calculated neglecting the normal distribution Any number of parameters can be selected 1 The numerical display and the dial type indicator indicate the same value default setting 2 The dial type indicator always shows the current measuring value while the numerical display shows the result selected with RESULT Reducing the number of digits after the comma for indica tions on the numerical display 0 No digit after the comma 0 0 One digit after the comma 0 00 Two digits after the comma only possible with a measuring range of 200 um um The selected setting is indicated by the um or pinch indi inch cator English Texts are given in English Deutsch Texts are given in German FRANCAIS Texts are given in French 37 Configuration parameter Settings Indication Indication Explanations Parameter settings 1 on 0 off Brightness of the dis
68. ry for the measuring reference function Measuring time controlled by Start Stop Start atop Td ae START START Measuring with preset measuring time Tm Start Stop Td Tm Cyclical repetition of the measurement Start Td Tm Tp Tp Fig 6 Measurements with differing measuring time control Tm measuring time Td initial delay time Tp pause time 4 8 Storing the settings permanently Changed measuring conditions and instrument settings are deleted on switch ing off the instrument When switching on again the instrument presents the settings that have been stored last However all settings can be stored permanently by means of the function Save For this select Save in the instrument configuration and press The following safety inquiry must be answered by pressing W or aborted by pressing any other key Each time the instrument configuration is stored the version number of the software is also stored When switching on the VMF 1000 the version number stored in the EPROM is compared to the stored version number If the version numbers differ e g after having exchanged the EPROM the instrument indi cates Rev Fehl The VMF 1000 may no longer function correctly Load the standard configuration S config and store it by means of the function Save There is one permanently stored standard setting for measuring conditions and instrument set
69. ster actual value from the nominal value Master value to be entered Master actual value Nominal value Proceed as follows Use the function SETTING to select the parameter Master and enter the devia tion of the master actual value from the nominal value Place the master into the measuring unit and actuate the keys and ESA The master value will be displayed All subsequent workpiece measurements are now referred to this master value Example Given are a nominal value of 122 050 mm and a master actual value of 121 010 mm The master value to be entered is calculated as follows 121 010 mm 122 050 mm 1 040 mm Thus 1 040 um is the master value to be entered The master value may also be entered via the BCD inputs or the RS232 inter face 4 2 Nominal value In case actual values instead of relative ones are to be indicated nominal values in a range between 0 and 2 m i e 0 and 1 999 999 um can be entered Here only positive values are allowed The nominal value will be added to the measuring result The sum will only be indicated on the numerical display but not on the dial type indicator which con tinues to indicate the deviation from the nominal value Please note that the tol erance indication and the tolerance limits are also referred only to the deviation from the nominal value Nom val nominal value is to be selected and entered 0 1 999 999 um via the function SETTING Example Given ar
70. t automatically The range between the upper and lower tolerance limit is divided into classes of equal width The number of classes has to be set in the instrument configuration level After having actuated Konfig on the rear of the instrument use the key A or V to set the indication to Classes and actuate the keys P and A or V to enter the desired number of classes 1 30 By entering 0 classification will be switched off The class limits are adjusted after leaving this menu point Example for automatic classification In case there are 5 classes between 2 000 um lower tolerance limit and 2 000 um upper tolerance limit a class width of 800 um and the following class limits will result for automatic classification Cl 1 0 2 000 00 Cl l 1 1 200 00 from 2 000 um to lt 1 200 um CI I 2 400 00 from 1 200um to lt 400 um CI I 3 400 00 from 400 um to lt 400 um CI I 4 1 200 00 from 400 um to lt 1 200 um CI I 5 2 000 00 from 1 200 um to lt 2 000 um Please note that due to the chosen hysteresis the reversing points between the in dividual classes are extended A measuring result which is in the range of the hysteresis is automatically assigned to the lower class provided that the directly preceding result was also assigned to the lower class If it was grouped into the higher class the current result will be as signed to the higher class as well Printing out the classification results W
71. ter STRT man The measuring time is started by simply pressing the START key and ended whenever wanted by pressing the START key again 2 Measurement over a certain preset period of time Press the key Konfig on the rear of the instrument and select the parameter STRT Tm The measuring time starts after actuating the START key and ends automatically after the preset time Tm For adjusting the measuring time in seconds set the parameter Tm s in the instrument configuration to a value in the range between 0 01 s and 999 99 s by means of the keys gt A or V 3 Given measuring time cyclical repetition of measuring run meas urements in intervals Press the key Konfig on the rear of the instrument and select the parameter STRT Tp The measurement starts after having actuated the key START and ends after the preset time Tm After a pause time Tp the measuring run starts again The cyclical repetition of the measuring time Tm and the pause time Tp is ended on actuating the key START again The length of the pause Tp s is entered in the same way as the measuring time Tm 0 01 999 99 s By entering a delay time Td between 0 and 99 99 seconds the start of the measurement will be delayed Td is entered in the same way as Tm The measurement can be interrupted on actuating the keys and START and continued by actuating these keys again START Adjusting the parameters Tm and Td is also necessa
72. test is performed After approx 15 s the instrument is ready for operation The text indication now shows the master value stored last The numerical display and the dial type indicator dis play the corresponding measuring result 4 Adjusting the measuring conditions The measuring conditions can be adjusted after having pressed the keys and SETTING In accordance with the measuring problem the operator may adjust the master value Master the nominal value Nom val the upper tolerance up Tol the lower tolerance low Tol The standard routine for adjusting the measuring conditions is as follows 1 Activating the measuring condition adjustment Indicator 6 lights up Selecting the parameter Selecting the digit Setting the numerical value a Fw DN Concluding the measuring condition adjustment with and SETTING with A and V with P with A or V with RESULT or selecting further parameters with A or Steps 3 and 4 have to be repeated for each digit of the numerical value The adjustment of measuring conditions is concluded by pressing the key RESULT 4 1 Master value During a master measurement the instrument can be set to a defined master value master deviation by means of the function Via the function SETTING this master value can be selected and entered On activating the function this value will be displayed The master value to be entered is the deviation of the ma
73. tings to which the instrument is adjusted on delivery This standard setting can be recalled at any time although the user may have per manently stored further settings The measuring conditions and the instrument configuration entered and stored permanently by the user however will only be overwritten and deleted if the standard setting is stored again by means of the function Save Otherwise the permanently stored user specific set tings continue to be valid after switching off and on again Thus intermediate work with standard settings does not automatically entail the deletion of cus tomer specific settings Non volatile memory for user specific settings Switching on the instrument Working memory volatile Read only memory S config for standard settings Fig 7 Storing instrument settings in the volatile working memory the non volatile memory and the standard settings memory The settings in the working memory are always the ones which are used 18 5 Measurement and evaluation After switching on the instrument is in its basic condition The transducer value is determined continuously and indicated according to the selected transducer combination In case the instrument is not in its basic condition this condition can be re established by actuating either RESULT or START 5 1 Checking the transducer signal indication For checking purposes e g during setting up the actuation of key Check a o
74. unctions can also be assigned to function key F1 or F2 for making them directly available see section 6 8 The statistical results can also be deleted and printed out by means of control input signals see section 6 2 22 5 5 Printouts It is possible to print out measuring results statistical values and histograms in the form of a measuring record All Epson or Epson compatible printers with serial interface can be used for this purpose The printer is connected to the RS 232 C interface via the cable order no 6860215 For this set the instrument configuration parameter PrntPara to 1 Also check the baud rate and the transmission format Then start the measurement by pressing the key START The measuring results Combine MEAN MAX MIN MX M 2 and MAX MIN depending on the presetting will be printed out directly after the measure ment START starts the measuring run the results of which will be stored The measuring run ends either after the preset time Tm or after actuating the START key again The results are printed out as one line of a table Provided that classification and statistics have been activated it is possible at any time i e during or after a measuring series to print out the histogram and the statistics For this Prnt stat has to be set A and V and confirmed with in the instrument configuration As soon as the printout is complete the measuring series can be continued

VMF 1000 Amplifier User Manual

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