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VIBXPERT 11.2010

Appendix - Technical notes

Firmware features in the 1-channel version

Measurement Modes

Multimode

Characteristic Overall Values

Vibration (Acceleration, Velocity, Displacement)
Current, Voltage (AC / DC)
Shock pulse (bearing condition)
Temperature
Rotational speed

Signals

Amplitude spectrum for

acceleration, velocity, displacement, current, volt.

Envelope spectrum for

acceleration, velocity, shock pulse, current, volt.

Time waveform for

acceleration, velocity, displacement, current, volt.

Phase measurement (polar diagram)
Coast down analysis for 1st order (tracking);

Phase / overall value/ spectrum over RPM
display as Bode or Nyquist diagram (phase - RPM)

Route

Set of measurement tasks for machine condition moni-
toring and diagnosis
Route guidance via tree / list view or machine graphics
Optimizer levels, TrendingSpectrum, 'Near location'
mode for rapid data collection

Recording (optional)

Recording of overall values & spectra
Interval / Event triggered
Pre- and post history

Balancing (optional)

Dynamic 1 or 2 plane balancing under working condi-
tions

Analysis functions

Cursor

Main, Delta, Harmonics, Subharmonics, Sidebands

Frequency marker

Fixed and RPM-variable characteristic frequencies for
machines, roller bearings and gearboxes can be dis-
played in 'Multimode' and 'Route' mode

Band alarms

Narrow band monitoring of damage frequencies (route
mode)

Max 10

List of the 10 highest amplitudes in the spectrum

Display

linear scaling, logarithmic scaling (Y axis), trend, cas-
cade diagram (waterfall), polar plot, order scaling for
amplitude / envelope spectrum

Measurement functions

Multi Measurement Tasks

Combination of several measurements and modes in
one task.

Averaging

none (not for temperature),
linear (not for timewaveform),
peak hold (not for timewaveform and temperature),
exponential (not for timewaveform & temperature),
time-synchronous (timewaveform, spectrum, balancing)

Trigger Modes

Free running, external (time-synchronous), internal
Amplitude, Edge, Pre and post triggered.

FFT

F

min

: between 0.5 Hz and 10 Hz programmable

F

max

: between 200 Hz and 51.2 kHz programmable

Lines: 400, 800, 1600, 3200, 6400, 12800,
25600, 51200, 102400
Window: Rectangular, Hanning, Hamming, Blackman,
Bartlett, Flattop, Kaiser

Additional functions in the 2-channel ver.

Measurement Modes

Multimode

Overall values

2-channel measurements

Signals

2-channel measurements with trigger
Orbit (filtered / unfiltered)
Cepstrum
Cross channel phase measurement
Impact test for natural frequency analysis on
a shutdown or running machine
ODS - Operation deflecting shape analysis

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Содержание VIB 5.300 EX Series

Страница 1: ...ur trust and hope that you are happy with our product If you have any suggestions for improving this product or this instruction manual please let us know PRÜFTECHNIK Condition Monitoring Fax 49 89 99616 300 eMail info pruftechnik com Edition November 2010 Order no VIB 9 805 G Original manual Series VIB 5 300 VIB 5 300 EX Firmware version 2 3x 0044 ...

Страница 2: ... recurrent measurement tasks within the scope of acceptance or service measurements Almost every type of sensor can be connected One or two measurement channels analog Upgrade to 2 channel device at any time via password Intrinsically safe version available Hardware Two synchronous measurement channels for diagnosis of complex measurements e g shaft vibration Unlimited storage capacity Standard 2 ...

Страница 3: ...peration Smart battery charging in VIBXPERT or in external charging station Automatic power management display illumination device Communication Fully networkable PC connection via USB Ethernet RS232 Documentation Printing out of reports directly on paper or as a PDF file VIBXPERT from PRÜFTECHNIK once again demonstrates the com pany s skills and innovative strength in the field of maintenance and...

Страница 4: ...s belong to the publisher The manual may not be copied reproduced translated or made accessible to a third party in any form neither in its entirety nor as an excerpt No liability may be claimed against the publisher regarding the product de scribed in this manual The publisher assumes no liability for accuracy of the manual contents Furthermore under no circumstances may the publisher be held lia...

Страница 5: ...play settings switchoff and additional options 2 13 Route 2 14 Transducers 2 19 Available transducers in VIBXPERT 2 19 Tranducer detection and Hardware settling 2 22 Sensor test 2 22 Default vibration sensor Multimode 2 22 Keyphaser 2 23 Language 2 23 Registration 2 23 Units 2 24 Key controls 2 25 Printer 2 26 Setting up a printer 2 26 Deleting a print job 2 27 Connecting the printer 2 27 Analog o...

Страница 6: ...g the measurement channel 3 17 Changing the sensor 3 18 Entering the RPM manually 3 18 Changing the measurement task M 3 19 Setting up a new measurement task M 3 19 Creating a new setup M 3 20 Entering an Event Comment 3 26 Signal sensitivity on analog output headphones 3 27 Trend 3 28 Near location Route 3 32 Triaxial sensor Route 3 34 Recording 3 36 Time waveform recorder 3 40 Chapter 4 Results ...

Страница 7: ...ents 5 30 Chapter 6 Appendix 6 1 Numerical editor 6 1 Text Editor 6 2 File Manager 6 3 Functions of the MENU key 6 3 Printing out the PDF file 6 4 VIBXPERT utility 6 5 Installing and starting the program 6 5 Registering optional functions 6 6 Setting up a connection with VIBXPERT 6 7 Configuring VIBXPERT 6 7 Transferring files 6 8 Transferring system files 6 9 VIBCODE 6 10 Mechanical coding 6 10 C...

Страница 8: ...IB 6 142R Mobile accelerometer electrically insulated M5 flat TNC conn VIB 3 420 Magnetic holder for curved surfaces VIB 9 805 G VIBXPERT manual this manual VIB 9 806 G VIBXPERT Balancing manual VIB 9 807 G VIBXPERT short instructions VIB 9 661 5DG VIBXPERT product catalog Not shown VIB 5 382 FFT Firmware certificate FFT spectral analysis VIB 5 383 RTE Firmware certificate Route data collector VIB...

Страница 9: ...device VIB 5 360 1E VIB 5 320 VIB 9 805 G VIB 9 806 G VIB 9 807 G VIB 9 661 5DG VIB 3 420 VIB 5 300 VIB 5 354 VIB 5 325 VIB 6 142R VIB 5 329 Basic package Trending 1 channel device VIB 5 364 1E VIB 9 631 G VIB 8 981 VIB 5 330SUSB VIB 5 436 The packages with OMNITREND PC software additionally include ...

Страница 10: ...e firmware CD includes OMNITREND demo version 0 0594 0219 EC type Examination certificate ATEX VIBXPERT EX 0 0594 0221 Technical data sheet UNV communication adapter VIB 5 364 1EX Trending package for 1 channel device includes all parts of Diagnosis package plus VIB 8 981 OMNITREND for VIBXPERT PC software instead of VIB 8 970 VIB 9 631 G Getting started with OMNITREND Not shown VIB 8 981 P PC lic...

Страница 11: ... VIB 5 364 1EX VIB 9 631 G VIB 5 436 Diagnosis and Trending delivery packages for 2 channel device additionally include Includes all Diagnosis package components plus the following VIB 3 420 VIB 6 142 DEX VIB 8 981 VIB 5 322 VIB 5 323 VIB 9 805 G VIB 9 806 G LIT 53 101 EN VIB 9 661 5DG VIB 5 300 EX VIB 5 354 LD VIB 5 329 X VIB 5 330 UNV VIB 5 436 VIBXpert VIB 5 338 VIB 3 420 VIB 6 142 DEX ...

Страница 12: ...ons see Technical data Transducers and cables may be used only for their respective intended uses as defined in the corresponding sales leaflets Any other use shall not be considered an intended use and is impermissible Incorrect or impermissible use and failure to observe the instructions in this manual result in a loss of warranty from PRÜFTECHNIK Safety The following notes must be carefully rea...

Страница 13: ...ean Specific provisions for VIBXPERT with intrinsic safety The following applies in potentially explosive environments When equipment to be measured is located in an explosive environment the intrinsically safe VIBXPERT EX VIB 5 300 EX and the appropriate intrinsically safe sensors and accesories must be used For vibration measurements you may only connect LineDrive transducers of the VIB 6 1xx DE...

Страница 14: ...suitable for the connection to devices intended for this UO 28V IO 63mA PO 300mW Ci 54nF CO 83nF Li 300µH LO 7mH The sensors of the VIB 6 1 DEX model series can also be connected to this interface The sensors of the VIB 6 1 EX model series should not be connected to this interface Temperature sensor circuit In type of protection intrinsic safety Ex ib IIC only suitable for the connection to NiCr N...

Страница 15: ...010 The diagram below shows the location and the contents of the device nameplate intrinsic safe version Nameplate for the VIBXPERT EX device with serial number S No and safety notes Safety and operating notes 50100 50 C ...

Страница 16: ...e diagram below shows the locations and the contents of the device nameplate and the battery nameplate standard version 00100 Nameplate for the VIBXPERT device with serial number S No Nameplate for the rechargeable battery with with serial number and safety notes ...

Страница 17: ... memory Replaceable Keyboard joystick Operation see page 2 2 Rechargeable battery VIBXPERT intrinsically safe Interfaces see page 2 6 LEDs Control panel Display Control panel F ESC MENU HELP LEDs Alarm indication Error Charge status Light sensor Keyboard illumination Additional key ENTER Display with start screen Analog A B Meas channels Charg sockets Communication Ethernet USB Digital Trigger RPM...

Страница 18: ...s Getting started F ESC MENU HELP Rocker key Zoom for X axis Change tab ESC key Cancel Return Switch off in the start screen F key Special functions such as tab fast key search Joystick Navigation Enter key ENTER HELP key Help page MENU key Menu functions context sensitive On Off key Switch on Switch off Restart Reset LEDs RED YELLOW GREEN BLUE Light sensor Additional ENTER key The non EX device p...

Страница 19: ...level exceeded Ambient light sensor RED YELLOW GREEN BLUE Arrangement of the LEDs on VIBXPERT left and on VIBXPERT EX right F ESC RED YELLOW GREEN BLUE Ambient light sensor LED RED YELLOW GREEN BLUE constant Alarm Warning Prewarning Meas OK flashing slow Signal Signal Measurement Battery overload unstable incomplete almost empty flashing fast Battery Trigger signal empty constant Error Battery Bat...

Страница 20: ... press the On Off key again for 2 seconds and confirm the resulting query to switch off with YES Reset Press the On Off key for approx 5 seconds until the device switches off and restarts Navigation and editing Select the screen elements with the cursor which can be moved by the joystick The selected element is highlighted To confirm the selec tion press the joystick click Some examples of navigat...

Страница 21: ...electrically insulated sensors Digital The yellow channel is used as the Input for the digital signal trigger or rpm sensor Serial interface for data transmission RS 232 Analog output connection for headphone oscilloscope Output for stroboscope control TTL signal Permissible range for trigger signals 26V 0V negative or 5V 26V positive Switching threshold positive max 2 5V rising min 0 6V falling S...

Страница 22: ... the following ways VIBXPERT with intrinsic safety has a separate charging socket on the bottom of the device Thus the channels marked in blue are used for measuring analog signals only The interface for the network and USB connection is located on the bottom of the device and is not used in hazardous areas The communication adapter VIB 5 330UNV must be connected between VIBXPERT and the periphera...

Страница 23: ...trical interference can lead to faulty measurements under certain circumstances Battery icon 100 50 Battery full Battery half empty If the battery is almost empty a message appears on the display and the blue LED flashes This continues for a few minutes to enable any measurements that are running to be completed and the battery to be replaced or recharged The rechargeable battery can be charged ei...

Страница 24: ... Do not short circuit connection contacts Maximum charge temperature 40 C Dispose of used batteries properly in accordance with regula tions P 6 17 Getting started Power supply Charging in the external charging station To remove the battery loosen both screws on the back The metal contacts on the battery in the charging station and in the device should be protected against contamination and inad v...

Страница 25: ...n a potentially explosive environment Charging socket VIBXpert Carrying pouch VIB 5 354 The stable and functional carrying pouch allows safe and convenient transport of the measurement device A belt and a hand strap can be attached to the pouch Belt Fasten the belt to the two diagonally opposite eyelets Adjust the belt length so that the measurement device hangs comfortably from the shoulder to al...

Страница 26: ...placed Replacing the memory card Switch off VIBXPERT Carefully remove the cover in the grip Make sure that the clip of the cover is not damaged Pull out the memory card by the adhesive strip Getting started Memory card Installation Insert the new card in the guide rails of the card slot Carefully press in the card up to the endstop Make sure the card is correctly oriented The top of the card shoul...

Страница 27: ...e automatically updated Card version firmware version in the device you are prompted to reset all settings to the factory settings Reset P 2 29 Card version latest firmware version no action Card faulty The file system on the card is damaged A warning appears along with the instruction to have the card repaired If possible make a backup copy of the measurement data see Backup page 6 9 Start card f...

Страница 28: ...e Click in the Time window and select the numerals for the hours minutes or seconds To change the numeric value move the joystick up or down without clicking When finished click the joystick to leave the Time window Select the Time format HH mm ss 24 h hh mm ssAP 12 h The date is set in the same way Select the appropriate Date format Other parameters Time zone Time shift to GMT Greenwich Mean Time...

Страница 29: ... can be loaded onto the device using the VIBXPERT utility tool see also the appendix p 6 8 SHOW BATTERY CHARGE Display the remaining battery charge in percent SPECTRUM SHOW LINES BELOW LOWER FREQUENCY FMIN In spectra with a lower limit frequency of fmin 0 Hz the lines between 0 Hz and fmin are displayed in the diagram if this option is enabled HIDE CALIBRATION HINT The message for overdue calibrat...

Страница 30: ...t TREE In this view the measurement locations and the higher level hierarchies are displayed as a tree structure as they are in OMNITREND The measurement locations are processed in the defined order LIST The list view shows the measurement locations in the order in which they are processed If the machine templates were created in the Production test mode a list view is not possible Graphic Route G...

Страница 31: ...erarchy levels are hidden in the tree DISABLED Measured skipped hierarchy levels are displayed in the tree Jump to next unmeasured measurement location Here you can define to which measurement location the cursor should jump after you view a stored result and close the measure ment task selection window ACTIVATED the cursor jumps to the next unmeasured measurement location DISABLED the cursor rema...

Страница 32: ... be started manually Route optimizer This function optimizes the processing of the route and shortens the time involved in collecting the measurement data ENABLED Measurement tasks for a measurement location with the same sensor are processed one after the other DISABLED Measurement tasks are processed in the sequence in which they were created in OMNITREND Optimize meas time for MultiTask The ind...

Страница 33: ... OK A sensor icon appears at the upper edge of the screen next to the battery icon When measurements are taken with the VIBCODE sensor sensor detection is always active Disable hardware settling This shortens the duration of the entire measurement ENABLED Amplifiers to not settled before measurement starts DISABLED Amplifier stages settle before measurement starts Measurement error may occur if th...

Страница 34: ...ing time until the result is automatically saved DISABLED The result must be manually saved Stop AutoSave on ALARM WARNING PREWARNING When the limit value is exceeded the AutoSave mode is deactivated NEVER The result is always stored automatically To accept the settings in the Route Setup and to close the menu press MENU and click on OK Device Setup Left Basic settings for the route template opera...

Страница 35: ... extensive Preselecting available transducers As it is probable that not all the transducers stored in VIBXPERT will be used the choice can be restricted to those transducers that are available to the user When setting up the measurement tasks VIBXPERT only offers the choice of the preselected transducers as standard Click on each of the relevant transducers in the list so that these are marked wi...

Страница 36: ...uantity SIGNAL TYPE Signal type of the sensor e g LineDrive ICP voltage INPUT VOLTAGE RANGE 3V 8V1 30V only applies for transducers of Voltage and VIBREX VIBRONET signal types QUANTITY USER DEF Identification for a user defined measurement variable UNIT USER DEF Unit for the user defined variable PRECISION Accuracy in decimal places COEFFICIENT A4 A3 A2 Parameters for linearizing a sensor s non li...

Страница 37: ...transducers only USER Display user configured transducers only AVAILABLE Display preselected transducers as available only MEAS QUANTITY Display the transducers for a specific measurement quantity only the measurement quantity is selected in the associated submenu see below Setting up new transducers To set up a new transducer proceed as follows In the transducer list press the MENU key Click on N...

Страница 38: ...or test Here you can manually check the measurement path to the sensor For ICP sensors use the ICP Sensor Test menu for all other sensors use the Sensor Test menu Select the channel to which the sensor is connected A B Click on START VIBXPERT then checks the measurement path and displays the result LineDrive Open line Short circuit etc Default vibration sensor Multimode A default sensor can be spe...

Страница 39: ...as the reference signal Language VIBXPERT includes 11 languages The default setting is English To change the language setting proceed as follows Click on Language Click on YourLanguage e g Espanol Francais Press MENU and click on OK Confirm the resulting message to restart the application see below Communication Settings for network communication see page 2 34 Registration The functions and operat...

Страница 40: ...erally performed by entering the PC license password in OMNITREND Here you can enter the password in VIBXPERT which is then automatically read into the software to register the device when it first makes contact with OMNITREND Units The units where appropriate are set to SI units in the factory To change the unit for the respective measurement quantities proceed as follows Click on Units Select th...

Страница 41: ... measure ment This key is particularly useful if it is not possible to press the Enter key e g if a hand held probe must be held on the machine with the right hand Save prompt after ESC The Save prompt appears if you press the ESC key without having saved the changes measurement results in the current screen before hand This query always appears for run up and coast down mea surements even if this...

Страница 42: ...the text editor Then set the print parameters Resolution paper format and depending on the printer type the color model and paper source Check the print function by printing a test page Connect VIBXPERT to the printer see the next page Press the MENU key and click on Test page The test page is printed as soon as the print job has been processed by VIBXPERT If you select PDF as the printer you can ...

Страница 43: ... and click on Delete job If a print job is being processed a print icon appears at the top edge of the screen Print job is being processed Device Setup VIB 5 330MUSB USB master Connecting the printer Only printers with a USB interface can be connected to the measure ment device Use the USB cable available as an accessory for I O devices to connect the printer VIB 5 3330 MUSB ...

Страница 44: ...utput until the measure ment screen is closed If needed adjust the standard normalization for the accelerometer You can choose from 10mV g 100mV g 500mV g 1mV ms A maximum output voltage of 4V provides the maximum possible measurement range for example of 80 m s2 at 500mV g 400 m s at 100mV g If the vibration signal is measured with a different sensor type set a suitable gain factor in the Default...

Страница 45: ... an offset in the analog electronics This option makes it possible to maintain the measurement accuracy of the instrument by regularly approximately every 2 months compensating the offset Click on Offset Compensation Click on Start The process takes about 3 minutes Factory Defaults This menu can be used to reset various settings in the instrument to the values set up in the factory In addition dat...

Страница 46: ... PC via a patch network connection see p 2 32f OFF Stop Demo mode LogLevel To simplify troubleshooting the operating steps can be logged in the device and written to a log file This menu is used to set how much data is to be written to the log file LogLevel Click on the LogLevel icon Select one of the following options NONE No logging DEFAULT Only the most important operating steps are logged RUNT...

Страница 47: ...stem on the memory card is faulty an error message appears If possible save the measurement data on the PC before starting the repair function Standardization factor for dB scaling The amplitude of a spectrum is converted to decibels dB with the following formula Alog 20 log Alin N where Alog amplitude in dB Alin amplitude in linear unit N standardization factor In this menu you can set the standa...

Страница 48: ... utility tool found on the PRÜFTECH NIK CD and that must be installed locally on the PC Direct connection to laptop PC VIBXPERT without intrinsic safety SERIAL CONNECTION Connect the PC cable VIB 5 430 2 to the digital port yellow and serial port of the computer USB CONNECTION Connect the USB cable VIB 5 330SUSB to the communication port green and USB port of the computer PATCH CONNECTION Connect ...

Страница 49: ...nication port green Connect the computer and adapter with the USB cable VIB 5 338 PATCH CONNECTION Connect the adapter cable with the green sleeve to the communication port green Connect the computer and adapter with a straight patch cable USB Patch VIB 5 330 UNV Network connection Data transfer via an Ethernet network requires the following compo nents and information Network connection Ethernet ...

Страница 50: ...FETY Connect the Ethernet cable VIB 5 331 to the communication port green and power socket VIBXPERT EX WITH INTRINSIC SAFETY Connect the adapter cable with the green sleeve to the communication port green Connect the adapter to the network connector with a straight patch cable Network connection LAN Ethernet VIB 5 330 UNV VIB 5 331 Ethernet Device Setup Left Open menu for network communication Rig...

Страница 51: ...twork where the PC is located If necessary enter the address of the gateway in the Standard gateway field If no gateway is used set the field to 0 0 0 0 To accept the settings press MENU and click on OK IP address of the local PC in the network If the IP address and the subnet mask of the PC are not known ask your network administrator or find it yourself on the PC Open the DOS box on your PC Clic...

Страница 52: ... if you connect the computer directly to the measurement device with a patch cable see p 2 32 2 33 From the START menu select SETTINGS choose NETWORK and DIAL UP CONNECTIONS Right click on LOCAL AREA CONNECTION and select PROPER TIES Select TCP IP and click PROPERTIES Select USE THE FOLLOWING IP ADDRESS Enter the IP address data for the local PC ...

Страница 53: ...he measurement data in VIBXPERT to the OMNITREND database connect the VIBXPERT to the mains supply Otherwise the update procedure will not start Install the VIBXPERT update tool on the PC The program is available on the PRÜFTECHNIK Condition Monitoring CD Connect VIBXPERT to the network the PC Switch on VIBXPERT Start the VIBXPERT update tool on the PC and click on Next to call up Step 2 Set the C...

Страница 54: ... number e g VXP_220_build503 ptz and the extension ptz Click on Next In the next step 4 click on Download to start the data transfer to VIBXPERT After the data transfer has finished click on Close to close the program The device switches itself on and off repeatedly until the update is completed This process generally takes a few minutes Wait for the VIBXPERT start screen to appear The version num...

Страница 55: ...ns or acceptance measurements on site at the machine manufacturer s Routes and machine templates are created in the OMNITREND PC software the results are read into the OMNITREND PC software for evaluation and archiving purposes Balancing VIBXPERT can be used for dynamic balancing in one or two planes Preparation Before beginning a measurement ensure that the battery is fully charged the device set...

Страница 56: ...VIBXPERT receives the measurement tasks directly from the OMNITREND PC software Only a few of the measurement parameters here can be changed transducer measurement channel RPM entry The following overview shows the structure of a measurement task in VIBXPERT Measurement variable Vibration acceleration Vibration velocity Vibration displacement as overall value time signal or spectrum respectively S...

Страница 57: ...ick Typical workflow of a measurement This section shows you how to carry out a measurement in multimo de mode if the preparations have already been made A schematic of the workflow of a measurement is shown below The setting options that are available before during and after a measurement are described in the following section The evaluation of the results on the instrument is described in Chapte...

Страница 58: ...oast down curve and impact test The live mode is activated in the Display Setup see p 4 15 or by keeping the joystick pressed when the measurement starts The actual data collection begins when you release the joystick or press the joystick again Measurement progress is indicated by a bar at the top edge of the screen In the live mode the Live symbol appears in the title bar and the progress bar re...

Страница 59: ... point in time It is possible to skip individual elements in the route if an aggregate is not in operation for example The skipped measure ment tasks are counted as processed When the route has been processed it can be transferred into the OMNITREND database for evaluation and in order to archive the results on the PC The following diagram shows the typical workflow of a route Sequence of a route ...

Страница 60: ...TREND software as an adaptive trigger If no adaptive trigger is defined the diagnosis measurement is trig gered when the lowest threshold value is exceeded Visual inspection A visual inspection task includes all types of data gathering that are based on defined conditions of a machine and that cannot be measured with electrical signals For example the degree of contam ination of an aggregate the b...

Страница 61: ...ing sections The evaluation of the results on the device is described in Chapter 4 Start Route Click on the Route icon in the start screen All routes available in the data collector are displayed in the route list see below The right column Completed specifies the number of measured locations total measurement locations for each route The lower info field shows for the selected route the date and ...

Страница 62: ...The list view indicates the order of the route The tree view indicates the sequence in the measure ment location database Select the measurement task see below and connect the sensor specified in the info field Click to start the measurement Reference measurements must be carried out first e g RPM measurement for the normalization of a bearing measurement Various route options shorten the measurem...

Страница 63: ...Status in Tree view List view empty Partly not processed Completely processed Skipped Partly processed and skipped contains Multimode result contains Event Comment Near location channel A Meas location for triax sensor X axis AWP Result exceeds alarm warning prewarning threshold L line speed the production line speed of the aggregate must be entered before starting the measurements Icons Meas task...

Страница 64: ...NMEASURED Change the status of the associated measurement task to not measured All existing results are retained RESET REFERENCE RPM The reference rpm of the machine train or the production line speed is reset and can be measured again BREAK DOWN MULTITASK All the multi measurement tasks that are assigned to the highlight ed element are broken down into the individual measurement tasks This proced...

Страница 65: ... mode to perform measurements which are not programmed in the route After the measurement press the ESC key to return to route mode The Multimode results are automatically allocated to the element in the route from which the operating mode was changed To display the results select MULTIMODE RESULTS and click on the saved measurement result DEVICE SETUP ROUTE Change the basic settings for route mod...

Страница 66: ...urement tasks which are automatically carried out for diagnosis if a threshold value is exceeded This function shows these additional diagnosis measurements TASK MANAGER To check the measurement settings before the measurement call up the Task Manager here The settings cannot be changed DISPLAY RESULT The results of a task that has already been carried out can be displayed Either the last result s...

Страница 67: ...ical applications are service measurements or acceptance measurements production tests on site at a machine manufacturer s Machine templates are created with the aid of the OMNITREND PC software Select measurement location Enter machine code name serial number The following diagram shows the typical workflow of a measure ment Select operating mode Select measurement task start measurement Save mea...

Страница 68: ...conditions within the scope of a production test The remaining measurement tasks are called up manually by joystick navigation To create a template for a production test the Production test option must be activated in the OMNITREND template editor see below In the case of templates for production tests the measurement location hierarchy on the machine is only shown in the tree view A list view is ...

Страница 69: ...easurement on a machine click on the corre sponding subordinate machine Click on the template that you want to use for the measurement The Machine description dialog appears where only one name for the new machine e g Machine 2 is specified as standard If you do not want to enter any further information press the MENU key and click on OK to accept the name Otherwise press the MENU key click on Det...

Страница 70: ...n the Route section Click on the measurement location Select the measurement task and connect the sensor specified in the info field Click on the measurement task to start the measurement Select the next measurement task and start the measurement Once all measurement tasks have been completed the following message appears All measurements on the machine carried out not in the case of templates for...

Страница 71: ...e current result can be appended to the saved measurement data or can overwrite them Multimode Press the MENU key after a measurement and click on Save see P 3 4 In the case of a trend the result is saved in the corresponding existing data set select Append see P 3 29 Changing the measurement channel Multimode Highlight the measurement type in the selection screen Press the MENU key and click on T...

Страница 72: ...elect the required sensor P 3 17 To save the change press the MENU key and click on OK Route machine template In the tree list view press the MENU key and click on Runtime Setup Route see below Activate the Use default sensor option Select the sensor that is to be used for all vibration measurements on the route in the machine template Do not activate when the route uses the Near location or Triax...

Страница 73: ...rs with all the measurement tasks set up for this measurement type Click on the required measurement task see below Setting up a new measurement task M VIBXPERT has a large selection of frequently used measurement tasks that can be extended by user defined measurement tasks if necessary To configure a new measurement task proceed as follows Highlight the measurement type in the selection screen Pr...

Страница 74: ...ENU key and click on New see below Enter a name in the text editor Then set up the Setup parameters Press the MENU key Click on Edit Change the parameters as required see sections A to D on the following pages To save press the MENU key and click on OK How to review the setup parameters Open the Task Manager Select the setup in the respective pulldown menu Press the MENU key and click on Show In w...

Страница 75: ...shorter the total measurement time For the runup coastdown curve the number of usable measurements can be increased by selecting a higher overlap TIME SYHNCHRONOUS AVERAGING PHASE ORBIT In this type of averaging the time signals of each individual rotation are averaged to reduce non synchronous components in the signal The calculated phase values are likewise averaged to increase the stability of ...

Страница 76: ...ctangular window all other parameters are described in section A2 NEGATIVE AVERAGING IMPACT TEST Enables an impact test while the machine is running 1 channel and 2 channels with impulse hammer The signals from the running machine are filtered out FRF CALCULATION 2 CH IMPACT TEST Calculation procedure for the transfer function Frequency Response Function FRF TRIGGER TYPE LEVEL START SHOCK PULSE VI...

Страница 77: ...to TP freely adjustable DEMODULATION FACTOR ENVELOPE Ratio of the highpass frequency prior to demodulation to the lowpass frequency after demodulation LOWER UPPER FREQUENCY FMIN FMAX Lowest and highest frequency which can appear in the signal The lower frequency setting of 0 5 Hz or 1 Hz only applies for spectra and overall value measure ments For the Displacement and User defined measurement quan...

Страница 78: ...ngular this is the simplest window trian gle lower amplitude and frequency accuracy Blackman As for Hanning but with higher frequency accuracy amplitude errors as in Kaiser 12 next to Kaiser the second best alternative for nearly all applications AVERAGING TYPE NO OF MEASUREMENTS SPECTRUM TIMEWAVEFORM CEPSTRUM Without av During the measurement each recorded spectrum is displayed The Number of aver...

Страница 79: ...e descriptive text in the text editor After terminating the text input and closing the text editor press the MENU button and click on Save D Parameters for RPM measurement The RPM should always only be recorded if RPM synchronous signals appear in the spectrum characteristic frequency needs to be updated or the frequency axis is scaled in orders order based analysis If you want to enter the RPM by...

Страница 80: ...t see below The text editor appears Enter the comment and close the text editor The comment is displayed below the event window To save press the MENU button and click on OK You can edit delete and add events in the route later on Events in the Multimode cannot be edited or deleted To delete an event comment in the route Press the F key in the event editor to open the bottom event or comment windo...

Страница 81: ...the analog output proceed as follows Press the MENU key in the measurement screen Select Analog Out Sensitivity and set the desired sensitivi ty For 2 channel measurements you can also select the channel whose signal is to be output on the analog output see below Analog signal output Controlling signal sensitivity Selecting a measurement channel 2 channel measurement Options ...

Страница 82: ...the relevant route Select the measurement task for which at least one measurement has already been saved Start the measurement After the measurement confirm the prompt to save which ap pears Then the following message appears see below Measurement tasks already measured APPEND The current result is added to the saved data set and extends the trend curve see below OVERWRITE The current result overw...

Страница 83: ...ord see below To create a new measurement file select New This is a simple method of adopting the settings of an existing file for a new measurement To overwrite the data of the saved file select Overwrite Measurement data that cannot be displayed as a trend For measurements such as orbit impact test and 1 1 measurement the results are added to the data set but a trend display is not possible The ...

Страница 84: ... data are displayed in a waterfall diagram In a TrendingSpectrum the display depends on which panel of the results screen is activated the upper panel containing the spec trum waterfall or the lower panel containing the characteris tic band values trend see p 4 10 To compare the current measurement with the historical data proceed as follows After the measurement is completed press the MENU key in...

Страница 85: ...arning to appear the following requirements must be met The maximum permissible deviation of the measurement values is set in the OMNITREND software here 20 The deviation and Historical data functions are activated in the OMNITREND Route Editor The information and data sets have been loaded into VIBXPERT with the route The display mode for route results is set to Standard see also Device settings ...

Страница 86: ...st view near measurement locations are labeled with an icon that also indicates the measurement channel for the measurement locations When a near measurement location is selected the associated measurement location is automatically highlighted in grey see below VIBXPERT always groups two fitting measurement tasks to one 1 1 measurement according to certain rules Measurement tasks that do not fit t...

Страница 87: ...Options during the route Skipping a measurement location measurement task see p 3 10 If you skip over a measurement task only the grouped measure ment task within the 1 1 measurement is skipped If you skip a measurement location the near location is skipped as well including all associated measurement tasks Disabling the spatial sequence Near location can be disabled in the route This procedure af...

Страница 88: ...ment is created in the OMNITREND software In OMNITREND a sensor of type ICP must be assigned to the measurement tasks Because VIBXPERT only has two measurement channels a special cable adapter VIB 5 336 is required that groups the second and third signal line Y Z on channel B The measurement tasks for the X and Y directions are grouped by VIBXPERT into a 1 1 measurement and simultaneously recorded...

Страница 89: ...ement location In the tree list view triax locations are identified by an icon that indicates the sensor axes The other two associated measurement locations are automatically highlighted s below Click on the measurement location to display the tasks The measurement tasks for the X and Y directions are where possible grouped to a 1 1 measurement and are measured simultaneously on channels A and B T...

Страница 90: ...ASE CROSS CHANNEL Restrictions also apply to the following measurements SPECTRUM Averaging is not possible for rpm controlled recordings TIME WAVEFORM The time sychronous averaging type is not permissible MULTI MEASUREMENT TASKS rpm controlled recording is not possible SHOCK PULSE MEASUREMENT ROLLER BEARING CONDITION rpm controlled recording is only possible without normalization Configuration Cli...

Страница 91: ... the rising or falling edge can be selected MANUAL The measurement stops when the memory card is full or when the ESC key is pressed Further settings SWITCH OFF BACKLIGHT To save power when operating the device during recording the display illumination can be switched off perma nently This option is independent of the settings in the device setup P 2 13 TRIGGER This option is only available if the...

Страница 92: ...isplayed and select if necessary an additional parameter maximum minimum max min Up to nine values can be displayed at the same time To hide the dialog window and display the concealed areas of the measurement screen press the F key Starting the measurement recording Press the MENU key in the configuration screen and click on Start The measurement screen appears A dialog is displayed in the foregr...

Страница 93: ...ation parameters This normalization then applies to the entire measurement duration Note rpm controlled recording is only possible without normalization Trending spectrum To be able to record the measurement values in a trending spectrum the recording function is also available in the Machine template mode Recording is configured and started as described in the previous section Special characteris...

Страница 94: ...measurement will be ended The recording can be stopped at any time using the ESC button You can save the measurement data that have already been recorded If the battery is low during recording the device automatically saves the data The data can be read into OMNITREND via Multimode import and then analyzed Alternatively they can be read out of the device using the VIBXPERT utility service program ...

Страница 95: ... ments see p 3 29 These data can be accessed at any time on the device even if they have already been transferred to OMNITREND Route template Results of a route or a machine template are usually stored automat ically p 2 18 to speed up the data recording The results only then remain in the display if the menu is opened within the selected waiting time the AutoSave option is deactivated a stored re...

Страница 96: ...r area If the limit values are exceeded during the measurement these appear in the field below the respective measurement value see below Also the respective LED lights up next to the display see pages 2 2 Limits can be displayed as an absolute value or as a difference to the measurement value For vibration parameters with more than two overall values move the joystick upwards or downwards to disp...

Страница 97: ...e if thresholds have been exceeded If more than one overall value appears in the diagram only the threshold for the highlighted value is displayed in the below screen upper alarm for p p value Move the joystick up down to mark the other overall values and display the respective threshold values Zoom Press the button repeatedly to magnify the area around the cursor This process can be undone again ...

Страница 98: ...n and delta cursor is magnified The key is used to zoom out Scaling the amplitude Y axis Move the joystick upwards downwards to change the scaling of the Y axis Rotational speed marker The yellow rotational speed markers indicate the trigger pulses during signal measurement In the circular plot the speed markers also indicate the direction of rotation see the next page Cursor The cursor coordinate...

Страница 99: ...you can change the display to a circular plot This is useful when the gear mesh in a gear stage is to be emphasized for example In this type of display the measured time interval is projected on a circle so that the start and end times are directly adjacent to one another If the shaft rotates by 360 within the measured time interval the circular diagram shows the signal for one complete rotation o...

Страница 100: ...nal from the main cursor is being used Avaraging mode Single shot Avaraging Window type Select the appropriate window type P 3 24 Press the MENU key and click on OK The calculated spectrum can be saved and measured again A transformation is only possible in the Cartesian display Displaying the rpm run If the rpm is recorded alongside the time waveform you can display the rpm run as follows Press t...

Страница 101: ...PM simultaneously with a trigger sensor activate the Trigger option and enter the number of Revolutions per trigger pulse Using the Start with trigger option you can synchronize the time signal using the trigger pulse If there is no trigger signal you can simulate it by using a manually entered RPM value In this case the trigger options described above are deactivated The RPM value in Hz corre spo...

Страница 102: ...n the desired piece of information The data to be displayed by default after the measurment is set in the display setup see p 4 18 The active window pane is highlighted by a frame Press the F key to switch to the other window pane Max 10 Lists the 10 highest amplitudes in the spectrum Click on an entry to set the cursor to the corresponding line of the spectrum You can sort the list for amplitude ...

Страница 103: ...fined for each machine hierarchy level in the OMNITREND software and loaded into VIBXPERT with a route template Press the F key to activate the lower window pane To display the frequency markers of each single hierarchy level press the MENU key and select from the list see below Frequency markers from lower hierarchies are added to higher hierarchies meas loc machine machine train Activate the cor...

Страница 104: ...Press the MENU key and click on Show history A table appears that contains the trending values the current measurement values and if set up the reference values Select the trending values that are to be compared Press the MENU key and click on History A diagram appears in which the historical and current measure ment values are visible as a trend Time waveform The measured acceleration signal can ...

Страница 105: ... available as an accessory VIB 5 333 RPM edit To enter the machine RPM after a measurement press the MENU key and click on RPM Edit Enter the RPM value in the number editor Display RMS This function calculates the RMS value of the spectrum and shows it on the graph see below Post Processing Each spectrum is initially calculated from the measured signal and then integrated to convert it to the desi...

Страница 106: ...in cursor To adjust this the main or the delta cursor highest displayed order can be moved SUBHARMONICS Show hide subharmonic cursor The subharmonic cursor can be used to detect subharmonics in the spectrum The spacing of the individual cursors to one another corresponds to a integer fraction 1 n of the main cursor If the subharmonic cursor is activated the delta cursor is not active SIDEBANDS Sho...

Страница 107: ...k to do the following tilt the diagram around the frequency axis rotate the diagram around the amplitude axis This display mode is indicated on the upper left of the diagram by a coordinate icon see below Cursor Only the main and delta cursors are available for evaluation in the 3 D view To activate the delta cursor press the MENU key and click on Cursor Delta see P 4 5 Zoom The Zoom function can ...

Страница 108: ...k on Zoom X axis or Zoom Z axis Evaluating individual spectra 2D view For the evaluation of an individual spectrum proceed as follows Highlight the relevant spectrum with the cursor Press the F key to display the individual spectrum Alternative Press the MENU key and click on Details Call up the respective diagnosis functions with the MENU key To return to the 3D view again press the MENU key and ...

Страница 109: ...played by default with the RMS value After the measurement move the joystick repeatedly upwards to display the overall values of the series that were not displayed If the threshold is exceeded the RMS values and the overall value that exceeded the threshold by the largest amount are displayed A2 Display Setup for Trend Overall values MEAS VALUE Selection of overall values The line type can be sele...

Страница 110: ...itudes in RMS or peak values 0 peak peak peak RMS value of entire spectrum see p 4 11 ORDER DISPLAY SPECTRUM Scaling of the X axis in Hz No or orders Yes The shaft RPM must be known measured or entered AMPLITUDE SCALING SPECTRUM linear or logarithmic in decibels DEFAULT DISPLAY MODE SPECTRUM Information that appears in the lower display field by default Max 10 time waveform band alarms frequency m...

Страница 111: ...r a peak value 0 p CONTINUOUS PHASE COASTDOWN PHASE WITH BODE PLOT The scale of the phase axis begins at 0 and ends at 360 If the curve runs beyond the 360 mark during the measurement it is continued unchanged at 0 No If you select the Yes option the phase axis continues beyond 360 beginning again at 0 and the phase progression is continually displayed SPEED MARKER ORBIT See section B1 ANGLE DIREC...

Страница 112: ...pectrum or also the set additional infos max 10 time waveform see section B1 should be displayed DISPLAY SETUP CHANNEL A B Click on Show to display the display settings of the individual measurement tasks To edit the display settings of the individual measurement tasks enable the required window section in the measurement screen and call up the display setup via the MENU key see diagram on page 5 ...

Страница 113: ...n dialog window appears Select the printer Press the MENU key and click on Print see below right If you select PDF as the printer enter a file name in the text editor The printer icon appears at the top edge of the screen while the print job is being processed see p 2 27 The screen printout is scaled to half the page width and is positioned in the middle of the page Measurement reports A measureme...

Страница 114: ... report To change it click on the text field The changed company name is used in all report configurations LOGO Company logo that is printed in the report Transfer the new logo using the VIBPERT utility program see p 6 5 File format PNG image size max 200 x 200 pixels CUSTOMER The customer information is stored globally and can be accessed by any report configuration Select the customer from the m...

Страница 115: ...ame of the measurement and sensor setup is printed Standard evaluation Like Standard plus evaluation setup or machine setup Details Like Standard evaluation plus a screen printout of each setup In the Measure info tab select the measurement type information that is to appear in the measurement report compare example on previous page Printing out the measurement report Select the printer and the re...

Страница 116: ...hierarchy are printed out Press the MENU key and click on Print The report configuration appears If necessary change the report configuration The settings in the Common settings tab are the same as the settings for the measurement reports see previous page The following detailed data can be set in the Measure info tab UNMEASURED JOBS Measurement tasks that have not been measured are included in th...

Страница 117: ...ration and is a measure of the intensity of the impacts in the form of a vibration Among other things the crest factor is deployed for wear diagnosis in roller bearings and gearing mechanisms as well as for cavitation A harmonic vibration of amplitude 1 has 0 707 as its effective value and a crest factor of 1 41 If the crest factor is higher than 1 41 impacts with higher amplitudes are occurring I...

Страница 118: ...cific factors are combined in the so called initial value or the dBi value The dBi value is calculated from the rotational speed and the bore diameter of the bearing Signal damping lubrication load These unspecific external influencing factors must be determined empirically within the framework of a normalization adjustment Together with the dBi value the adjustment value obtained in this way or e...

Страница 119: ...e the shock pulse measure ment EXTERNAL RPM is measured with an RPM sensor before the shock pulse measurement Enter the dBa value in the number editor P 6 1 if it is known Otherwise carry out a normalization adaptation set dBa to 0 see previous section Enter the diameter of the bearing inner race If the normalization type is set to manual enter the RPM see below To start the shock pulse measuremen...

Страница 120: ...r Shaft top view Do not look into the laser beam Risk of eye damage Do not open the housing Attention Installation and adjustment Mount the laser trigger sensor on the machine with the trigger stand VIB 6 632 The maximum distance to the shaft is 2 meters Apply a suitable measurement marker to the stationary shaft e g a reflective tape VIB 3 306 Connect the laser trigger sensor to the measurement d...

Страница 121: ...es not carry out any sensor detection on the measurement channel for temperature If the results are not correct check the connection and the sensor cable Measurement range VIB 8 608 50 C to 500 C VIB 8 607 50 C to 240 C Hand held temperature probe VIB 8 608 Magnetic temperature probe VIB 8 607 1 5 B A R R F ESC MENU HELP Trigger stand VIB 6 632 Sensor with magnetic holder VIB 6 142R VIB 3 420 Refl...

Страница 122: ...asurement is stopped when the stop RPM is reached Coastdown Measurement is started while the machine is running at the operating RPM VIBXPERT then begins to measure the RPM continuously Once you have switched the machine off and it drops below the selected start RPM VIBXPERT automatically starts recording the data Mea surement stops once the selected stop RPM is reached Start and stop RPMs are def...

Страница 123: ...Advanced tab Press the MENU key and click on Task Manager Click in the uppermost menu to display the stored measurement tasks The Show Dual Tasks or Show Single Tasks menu entries display the available 2 channel or 1 channel measurement tasks see below Select the desired measurement task Select the desired measurement task B Starting the measurement Click on the measurement task icon A dialog wind...

Страница 124: ...ay the progression of the RPM dependent vibration components in the spectrum can be tracked and the points of resonance can be identified To start the measurement the following condition must be fulfilled fmax 4x nmax maximum rpm The results screen always displays two consecutive spectra of the recorded series see below Use the key to scroll forwards and backwards The current number and the associ...

Страница 125: ...ines may appear in the phase diagram under certain circumstances These lines represent the 360 0 transition that can occur any number of times due to the constant continuation of the phase progression see P 4 17 5 6 Changing the type of diagram Press the F key and click with the joystick Averaging cancellation if rpm deviation 10 VIBXPERT records a time signal block per shaft rotation and combines...

Страница 126: ...ose spectrum is to be displayed Characteristic value RPM Phase RPM In 2 channel measurements it is possible to display the channels individually or together in one screen Press the F key and select the option Display Channel A B or A B Channel A B display The curve for channel B is shown by a thicker line Two polar diagrams appear in the Nyquist diagram The delta cursor is not available for 2 chan...

Страница 127: ...lowly the number of saved measurement values can be very high without significantly improving the quality of the results In this case you can reduce the measuring rate i e the number of saved measurement values per change in RPM and save memory space at the same time In the measurement setup set the RPM deviation parameter to a higher value either in the measurement setup or immediately before beg...

Страница 128: ...w As the measurement task select Dual Amp Startup Coastdown User see p 5 7 As the measurement setup select Dual Coast Down User Set the following parameters in the measurement setup MEASUREMENT QUANTITY Vibration displacement LOWER FREQUENCY DC In the sensor setup select the displacement sensors e g VIB 6 640 Requirements for correctly interpreting the results The sensors are installed at an angle...

Страница 129: ...asurement task CHOOSE FROM FILE Import from a Static shaft position result file Sensor arrangement The arrangement of the sensor relative to the direction of rotation influences the position and orientation of the shaft displacement in the diagram Because the direction of the shaft displacement with respect to the direction of rotation is a characteristic of certain fault types in journal bearings...

Страница 130: ...t the Cross Channel Phase Measurement is determined without a reference transducer The measurement is carried out as a 2 channel measurement where in addition to the signal amplitudes the phase difference of the two channels is determined Depending on where and in which direction measurements have been carried out on the machine the phase difference is an indicator of the presence of a machine fau...

Страница 131: ...annel The coherence factor is a measure of the quality of the measurement and indicates how strongly the signals of both channels are coupled If the factor is close to 1 the measurement is usable Phase trend If you would like to record the phase trend as a function of time or rpm save the individual measurements by Appending to a file see also p 3 29 In the display setup for the trend display p 4 ...

Страница 132: ...re requires a keyphaser to provide a reference A typical measurement installation is shown in the following figure The two displacement sensors are mounted in a single measure ment plane at an angular displacement of 90 on the machine If this angular displacement is not possible you can mount the sensors at any angular displacement between 5 and 175 Then enter the angular displacement in the measu...

Страница 133: ...ram type After the measurement Press the F key and click on Individual signals or on Orbit respectively or Open the Display Setup and select the diagram type see below Changing the order filter After measurement press the F key and select the required order in the Order field The order of 0 corresponds to the unfiltered signal and can only be adjusted if the measurement parameters in the measureme...

Страница 134: ...elope frequency spectrum can be calculated VIBXPERT saves the envelope time signal filtered last together with the envelope frequency spectrum To display the time signal press the MENU key and select Info Time signal see below VIBXPERT provides two methods for calculating the envelope Highpass and lowpass filtering is carried out on the basis of hardware or software In the case of hardware filteri...

Страница 135: ...of the input signal to the measurement variable is specified by the Measurement Variable and Unit parame ters in the transducer setup see P 2 20 Examples of user defined measurement variables Measurement of the pressure as a current level 4 20mA DC Connection to pressure transmitter Measurement of the flow rate as a current or voltage signal 4 20mA 0 10V DC Connection to flow rate measuring device...

Страница 136: ... results The evaluation of the results is carried out on the basis of the stored thresholds If a threshold is exceeded the corresponding symbol appears in the Status column see below left For a detailed view of the evaluation scale press the MENU key and click on Evaluation Overview see below Result of the single measurements After the measurement move the joystick until a black frame appears arou...

Страница 137: ...ly combines the relevant measurement tasks into a single multi measurement task Note Breaking down a multi measurement task To measure the measurement tasks of a multi measurement task individually in the route machine template proceed as follows Open the selection list of the measurement tasks see P 3 8 Highlight the multi measurement task Press the MENU key and click on Break down Multitask see ...

Страница 138: ...ere you can set the sensor for each channel A B and define whether the rpm should be recorded as well CHANNEL A CHANNEL B TAB Here you can define the measurement task for each channel Press the MENU key and click on Select task see below The import wizard appears in which you can select the individual measurement tasks in three steps see also the next section Dual measurement TRIGGER TAB The trigg...

Страница 139: ...ield define whether the measurements should be started consecutively or simultaneously on channel A and channel B If the averaging type is set to synchronous averaging for one channel the asynchronous with trigger start option is identical to the synchronous trigger A start option i e measurements start at the same time on both channels with channel A acting as the trigger In the Setup field selec...

Страница 140: ...easurement errors have occurred see P 2 2 The functions that can be triggered via the keyboard only apply to the active pane which is indicated by a frame As well as the pane for channel A and channel B the entire screen also counts as a pane To evaluate or repeat one of the two measurements activate the corresponding pane as follows Dual task here Spectrum time signal Partial window for channel A...

Страница 141: ...ll The signals from a running machine can be hidden using the so called negative averaging method Attach the transducer to the machine either with a magnet or even better with a screw fitting Set the number of individual measurements in the measurement setup e g 2 measurements see below Start the measurement by clicking on the task icon see above When the message Wait for trigger appears excite th...

Страница 142: ...rence spectrum without producing a machine excitation Click on Stop when a sufficient number of reference spectra have been recorded and averaged to form a result Displaying the results Activate the upper display field with the F key Spectrum P 4 8 Press the MENU key and click on Choose Dataset The results of the impact test the average final result and the reference measurement negative averaging...

Страница 143: ... the reference point for all other measurement locations The sensor on channel A is attached to the designated measurement locations of the structure in sequence and records the respective structural response Impact test with impulse hammer This measurement task is similar to the one channel impact test channel B records the excitation and is the trigger for the measurement To take measurements on...

Страница 144: ...easurement location and the measurement direction Multiple impact results can be contained in a single file C ODS results During measurement the system response appears in the upper window and the excitation in the lower window either as a spectrum or time waveform see also p 4 18 After the individual measurements are completed the final result appears The upper window shows the transfer function ...

Страница 145: ...me signal Order spectrum In an order spectrum the frequencies are recorded and displayed as a multiple of the shaft rotational frequency order In these measurements the RPM is recorded at the same time as the vibration signal and is taken into account when the spectrum is calculated If short term system related fluctuations in the RPM occur the sample rate of the time signal is adjusted accordingl...

Страница 146: ...bration displacement measuring quantity Application examples The DC component in the time waveform can be evaluated when process parameters or distances are measured When a 2 channel coastdown curve is measured with the vibration displacement measuring quantity the shaft centerline plot during runup or coastdown in a machine with journal bearings can be calculated from the DC component of the sign...

Страница 147: ... required digit To delete numerals press the ESC key Only the left digit of a number is deleted The sign can be toggled at any time with in the character field Decimal places are entered as a period To save the value press the MENU key and click on OK Decimal places Decimal places can only be entered if the Accuracy of the respective quantity is not set to zero see the section on Units in the devi...

Страница 148: ...haracter word to be deleted Press the F key to switch the cursor into the character table Click on in the character table backspace key see below To delete a text field Press the F key until the entire text field is highlighted Click once with the joystick Press the F key again to switch the cursor into the character table Click on in the character table backspace key Special characters Space comm...

Страница 149: ...t measurement type are displayed e g overall value vibration acceleration If you open the File Manager from the start screen all files are displayed see below Functions of the MENU key SAVE Saves the measurement result OPEN Opens the highlighted file CREATE DIR Creates a new folder RENAME Renames a file folder PRINT Prints out a PDF file COPY PASTE CUT Copies inserts moves file folder via the clip...

Страница 150: ...e The print files saved in the PDF format can be printed as follows Connect VIBXPERT to a printer Open the File Manager and select the file to be printed Press the MENU key and select Print Printer Printing starts Details on connecting and setting up a printer can be found in Chapter 2 p 2 26 Note ...

Страница 151: ...the IEEE format for further processing in the DASYLab analysis program Transferring language and help files for translation for autho rized PRÜFTECHNIK representatives only Installing and starting the program The installation program VibXpert_utility_version exe can be found on the PRÜFTECHNIK homepage www pruftechnik com or on the Condition Monitoring CD included with the delivery Double click on...

Страница 152: ...tration button In the screen that appears enter the company name and if already available the corresponding password To request a password activate the desired function and click on Request registration Registration Enter password Request password Send Print data for registration In the next screen check the entries and click on Print to print out the data Send the printout to the following fax nu...

Страница 153: ...yellow Smiley symbol appears A red Smiley symbol indicates a faulty connection VIBXPERT successfuly connected Configuring VIBXPERT The configuration encompasses the following functions Updating the firmware Transferring logo images for the report printouts Click on the Configure device button The New firmware button starts the VIBXPERT update tool that updates the firmware in VIBXPERT see also p 2...

Страница 154: ...Device Setup Display section see p 2 13 Transferring files The following files can be transferred from the device to the PC PDF files generated with a PDF printer driver Screenshots generated by pressing F simultaneously Results in CSV format for analysis and display in a spreadsheet program eg MS Excel Click on the Get files button Then click on the respective button and select the files you wish...

Страница 155: ...ect the data category Settings Results and enter the target directory if necessary Click on Backup to start the procedure The Restore procedure is performed in the same manner Click on Format CF card to format the memory card in the device Risk of data loss Before proceeding make sure that all important data and settings are backed up on an external storage device Formatting deletes all data on th...

Страница 156: ...r that measures the vibration signals via the measuring pin Several pressure sensitive sensors are arranged as a ring around the vibration sensor When coupled to a measuring pin these sensors detect the pattern in the plastic ring in the measuring pin This coding identifies the measure ment location to the connected evaluation device and determines which measurement tasks are to be performed on it...

Страница 157: ...he VIBCODE concept is structured as follows A VIBCODE route VIBCODE measurement locations at which measurements are taken regularly are part of a route Because each route is created for a particular purpose e g weekly inspection it only contains a certain subset of all VIBCODE measurement locations VIBCODE features automatic measurement location recognition so that the measure ment locations can b...

Страница 158: ...asurement Connecting the VIBCODE sensor Insert the sensor straight into the measurement location press it in place lightly and lock it by turning it clockwise until it stops This secure connection ensures that the measurement direction and pressure are the same for each measurement and that the results are reproducible To disconnect the sensor turn it in the opposite direction and remove it from t...

Страница 159: ...DE pool the measurement task scheduled first starts automatically All other measurements must be triggered manually via the measurement task selection To return to route mode from pool mode press the MENU button and click on Route If the VIBCODE measurement location is not contained in either the route or in the pool change to the Multimode mode to perform the required measurement To do so click o...

Страница 160: ...e a household cleaner The display is protected against damage by a scratch free transparent film Use a soft dry cloth to clean the film If necessary the protective film can be ordered from your PRÜFTECHNIK representative Never use solvents or other strong cleaning agents Maintenance Calibration Various factors such as aging or temperature can cause an offset in the analog electronics This offset s...

Страница 161: ... appears on the display For safety cover the metal contacts of the battery with sticky tape Attention PRÜFTECHNIK Condition Monitoring WEEE Reg No DE 72273578 The following information applies to customers in member states of the European Union EU in which EU Directive 2002 96 EG Waste Electrical and Electronic Equipment WEEE has been implemented in national law PRÜFTECHNIK products that fall unde...

Страница 162: ...ZELM 07 ATEX 0355 X Computer Processor Intel Strong ARM 206 MHz Keyboard 1 joystick 6 keys Intr safe ver 2 joysticks 12 keys Zoom Escape Function Help Menu On Off Display LCD 16 greyscales 480x320 pixel 1 2 VGA pixel area 115x78 mm backlit Memory Internal RAM 64 MB Compact Flash Cards Sizes 2 GB to 8 GB replaceable Intr safe ver 1 GB fix installed Serial interface RS 232 up to 115 kBaud USB Interf...

Страница 163: ...ble characteristic frequencies for machines roller bearings and gearboxes can be dis played in Multimode and Route mode Band alarms Narrow band monitoring of damage frequencies route mode Max 10 List of the 10 highest amplitudes in the spectrum Display linear scaling logarithmic scaling Y axis trend cas cade diagram waterfall polar plot order scaling for amplitude envelope spectrum Measurement fun...

Страница 164: ... cable VIB 5 331 Communication adapter for VIBXPERT EX VIB 5 330 UNV Connect VIBXPERT to the serial port and to the network connector of the PC Use the two cables mentioned above or for VIBXPERT EX the communication adapter see p 2 33 Start the VIBXPERT update tool on the PC Click on the Start Emergency Recovery button A warning is issued that the following process deletes all data on the memory c...

Страница 165: ...f and on again The update tool subsequently contacts VIBXPERT and starts transfer of the basic firmware The progress of the data transfer is shown in the right pane Transferring data X Then it is only necessary to load the firmware To do this follow the instructions on Page 2 37 ...

Страница 166: ...measurement task MultiTask Only with registered measurement tasks Route template Only with registered measurement tasks For Coastdown spectrum the FFT analysis module must be registered Modules to be registered 2 channel FFT analysis timewaveform Modules to be registered 2 channel Advanced analyses For Timewaveform recorder the Timewaveform module must be registered Enables 2 channel measurements ...

Страница 167: ...Amplitude spectrum Acc Vel Displ AC Envelope spectrum Gears roller bearings Timewaveform Acc Vel Displ AC Timewavef recorder Phase measurement 1 channel 2 channels Order spectrum TrendingSpectrum TrendingEnvelopeSpectrum Manual input Route template only Visual inspection Route template only Coastdown overall values over RPM Coastdown Phase over RPM Spectrum over RPM Phase measurement Cross channel...

Страница 168: ...all values 3 25 timewaveform 3 25 Event 3 26 External charging station 2 8 F F key 2 2 Factory Defaults 2 29 File Manager 6 3 Filter HP LP 3 23 Filter Type 3 23 Find 6 3 Find route 3 11 Firmware modules 6 21 Firmware re installing 6 18 Formatting 2 31 Frequency marker 4 9 Frequency upper lower 3 21 G Getting started 2 1 Graphic Route 2 18 Guarantee 6 15 H Hand strap 2 9 Harmonics cursor 4 12 HELP ...

Страница 169: ...3 21 3 23 Save 2 25 3 4 6 3 Scaling 4 4 Screenshot 4 19 Search 6 3 Sensor angle 3 23 Sensor check 2 22 Sensor detection 2 17 Serial connection 2 32 2 33 Service menu 2 29 Settling time 2 21 Setup new 3 20 Shaft centerline plot 5 12 Shock pulse 5 2 Sidebands 4 5 4 12 Signal Display Setup 4 16 Signal type 2 20 Skip 3 12 Spare parts 6 15 Spectrum 4 13 calculating 4 6 Speed Marker 4 16 Start measureme...

Страница 170: ...6 24 VIBXPERT 11 2010 Decleration of conformity ...

Страница 171: ...6 25 VIBXPERT 11 2010 ...

Страница 172: ...roductive maintenance technology Printed in Germany VIB 9 805 11 2010 0G VIBXPERT VIBCODE OMNITREND are registered trademarks of PRÜFTECHNIK AG Contents subject ot change without further notice particularly in the interest of further technical developement Reproduction in any form whatever only upon express written consent of PRÜFTECHNIK AG Copyright 2004 by PRÜFTECHNIK AG ...

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