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alitec mVIBE User Manual

Wireless vibration sensor and software
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mVIBE
WIRELESS VIBRATION SENSOR
AND SOFTWARE
version 20180928

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Summary of Contents for alitec mVIBE

  • Page 1 WIRELESS VIBRATION SENSOR AND SOFTWARE version 20180928...

  • Page 3: Important Informations For User

    Under no circumstances does Alitec take the responsibility for any damage, in particular: direct, indirect or after event, including profit loss, incurring additional costs, inability to use the product, as the result of its functioning or device failure, even when information of occurring possibility had been passed along.
  • Page 4 Using the device in different way, then described in the user’s manual or its non-intended use can pose a danger or result in hardware damage. Before starting a measurement, it is strongly suggested to read carefully the user’s manual. Usage in environmental conditions that are not inconsistent with the specification can lower the safety level or decrease device functional parameters.

  • Page 5: Preservation Of Environment

    2. PRESERVATION OF ENVIRONMENT The device is subject to a directive WEEE 2012/19/UE regarding waste electronic and electric devices. A symbol of crossed waste bin means that the product has to be utilized separately and should be delivered to the right waste collection point. It should not be thrown out along with a household waste. If you would like to know more about it, contact a company representative or local authorities in charge of waste management.

  • Page 6: Declaration Of Conformity

    3. DECLARATION OF CONFORMITY Alitec Company declares that mVIBE sensor complies with the relevant European Union Regulations: 2014/53/EU (RED) 2011/65/UE (RoHS) and on the requirements of the following standards: PN-EN 60950-1:2007 +A11:2009 +A1:2011 +A12:2011 +A2:2014 PN-EN 62311:2010 ETSI EN 301 489-1 V2.1.1 ETSI EN 301 489-17 V3.1.1...

  • Page 7: Table Of Contents

    Wireless vibration sensor mVIBE .............................. 9 Technical specification ................................11 mVIBE software ..................................13 Using mVIBE software for testing purposes ........................... 14 Vibration level analysis ................................15 Vibration level analysis in mVIBE software ........................17 Saving a measurement result in a text file ......................... 21 Analysis wizard using the standards ..........................
  • Page 8 How a way of sensor mounting impacts frequency range ....................36 Connecting the mVIBE sensor to a mobile device ......................37 Access point configuration in mVIBE device, restoring settings ..................41 Amplification calibration ..............................42 Charging a battery ................................43 Turning off the device, hardware off switch ........................44...

  • Page 9: Wireless Vibration Sensor Mvibe

    In the basic system version mVIBE operates with mVIBE Soft tool available in GooglePlay. It creates fundamental tool for machines technical state evaluation and fault diagnosis. The advanced options covering signal storage in database, localization structure with NFC identification, fully configurable detailed signal analysis functions are offered by mVIDIA software.
  • Page 10 Li-Ion rechargeable battery. Its high capacity ensures operating time up to 8 hours (continuous measurement with data transmission). The sensor can be attached to the investigated object by magnetic holder or M6 screw thread. As an option magnetic holder for curved surfaces is delivered.

  • Page 11: Technical Specification

    6. TECHNICAL SPECIFICATION 2 x piezoelectric accelerometers, ceramics PZT, shear mode, YZ direction 3 x MEMS accelerometer, XYZ direction Type of sensors 3 x MEMS gyroscope, XYZ direction 1 x microphone with ultrasonic capability 50 g (other as an option) – PZT accelerometer 16 g (other as an option) –...
  • Page 12 IP65, dust resistant case, resistant to water spout from any direction (for a covered microphone placed Level of protection in a threaded connector) mVIBE, mVIDIA, VIDIA Software optional: API, control functions for Matlab, programming functions adjusted to the application a built-in battery Li-Ion 3,7V/1200mAh, integrated charger 5V/550mA...

  • Page 13: Mvibe Software

    A text file enables further analysis of a result e.g. in a spreadsheet. mVIBE software after being downloaded from GooglePlay and installed on a mobile device may use a signal coming from a built- in accelerometers of a mobile device. This solution allows to become familiar with the software. Note that the sensors measure vibrations in frequency range up to several dozen Hz, they have linear respons in a narrow amplitude range and frequency, and they cannot be calibrated.

  • Page 14: Using Mvibe Software For Testing Purposes

    8. USING MVIBE SOFTWARE FOR TESTING PURPOSES mVIBE software available On first use the software displays The first displayed analysis is a value of download from GooglePlay. After an information about restricted Root Mean Square vibration installation it connects to a built-in measurements accuracy due to using acceleration.

  • Page 15: Vibration Level Analysis

    9. VIBRATION LEVEL ANALYSIS All machines, which consist of moving parts, vibrate. This phenomenon occurs in new machines as well. Progress of subassemblies’ damage comes with increase in force that moving parts act on other machine components (bearing, cases, supports). As a result, an increase in vibrations of defined properties is observed.

  • Page 17: Vibration Level Analysis In Mvibe Software

    10. VIBRATION LEVEL ANALYSIS IN MVIBE SOFTWARE General vibration level is a basic Separate analysis parameters can be By choosing option Physical quantity analysis of mVIBE software. Current changed by selecting a name of every and unit you can decide, which physical...
  • Page 18 For every physical quantity define, in By choosing option Analysis mode from According to accepted criteria of which unit you want to observe a result. the menu SETTINGS decide, which assessing subassembly’s technical parameter of vibrations you want to condition (defined in the standard, determine.
  • Page 19 Also enter appropriate values of alarm mVIBE has a function of searching in It is essential, because frequency thresholds. the declared frequency band and definition analysis in mVIBE software calculating component frequency level equals 1 Hz. If a value of a dominate (harmonic) of the biggest amplitude.
  • Page 20 clock indicator scale adjusts After getting stable result, You can run a measurement again by automatically to current value of measurement can be stopped by the button analysis result. By proper colours, choosing the button at the top bar defined alarm thresholds are marked. of the application.

  • Page 21: Saving A Measurement Result In A Text File

    11. SAVING A MEASUREMENT RESULT IN A TEXT FILE You can choose a memory location, By choosing the button you can save where you want to save the files, also the measurement result. It also applies you can name the file however you like. to a time course and vibration signal You can copy the files from a mobile spectrum.

  • Page 22: Analysis Wizard Using The Standards

    12. ANALYSIS WIZARD USING THE STANDARDS mVIBE software has a built-in analysis wizard, which is based on chosen standards used in assessment of technical condition of various sorts of machinery. It helps you to start working with technical condition assessment and damage diagnostic tools.
  • Page 23 The list of standards includes its After filling in the form, software After choosing the button you can separate indication and names. proposes criteria of machine’s technical display short characteristics of the condition. chosen standard, describing area of its Choosing the button SAVE causes use.

  • Page 24: Time Course Analysis

    13. TIME COURSE ANALYSIS In practice, vibration time course analysis has a limited application. Standards, which don’t refer to signal shape, do not exist. In many cases it’s is difficult to estimate a basic vibration frequency connected with rotation frequency. A basic application of a time graph is to check whether the signal is stationary or not, so the constancy of its parameters (to put it simply: amplitude and frequency) during a measurement.
  • Page 25 In order to display time course of a You can zoom in and out as well as move vertically and horizontally the signal, choose the button and then graph using gestures the command Time course (stretching/squeezing with two fingers, moving a finger on a display).

  • Page 26: Graphs Options, Markers (Cursors)

    14. GRAPHS OPTIONS, MARKERS (CURSORS) mVIBE software can read a value If you need to set more than one From a drop-down list in the box chosen on the graph. You can set a Marker choose the colour of a new...
  • Page 27 Markers can be deleted by touching The command Statistics is available By choosing the button and the them. command View, you can change the after choosing the button , it displays way the graph is displayed. You can add basic statistic parameters values of value tags on the graph, its filling and time course.

  • Page 28: Signal Frequency Analysis

    15. SIGNAL FREQUENCY ANALYSIS A basic method of rotating machines diagnostics is frequency analysis of vibration signal. It is responsible for taking measured signal apart to basic sinusoidal courses (harmonic) and defining a level of every one of them. Analysis of an obtained spectrum image is based on linking an individual harmonic with rotating frequencies of individual machine’s elements (component/harmonic base) and its multiples (higher harmonics).
  • Page 29 IMBALANCE MISALIGNMENT OF AXIAL SYMMETRY BEND SHAFT MECHANICAL LINKAGE PLAY BELT DAMAGE IN A BELT DRIVE...
  • Page 30 DAMAGE / VENTILATOR CONTAMINATION PUMP IMPELLER DAMAGER AND CAVITATION ENGINE ELECTRIC DAMAGE BEARING DAMAGE...
  • Page 31 In order to display vibration spectrum A spectrum graph as well as a time course can be zoomed in/out, moved vertically and horizontally the graph by using gestures or buttons. choose the button , then choose the You can also place and configure markers (single, harmonic or side bands). command Signal spectrum.

  • Page 32: Changing Direction Of Measured Vibrations

    16. CHANGING DIRECTION OF MEASURED VIBRATIONS If a device has a built-in multidirectional In the window Measurement channel The software will connect to a chosen vibration sensor, in a given moment the choose direction of your choice or measurement device software analyses a signal from one of sensor.

  • Page 33: Measurement Converter

    Measurements of lower accuracy in 3D space, in frequency range 0 Hz to 1,5 kHz, can be done by a built-in MEMS sensor. Together with a micro-machine gyroscope, they allow to determine dynamic changes of mVIBE sensor position in space.

  • Page 34: Mounting The Sensor

    18. MOUNTING THE SENSOR The sensor needs to be mounted on a still element of a machine, which can transfer vibrations of the tested element (bearing, rotating shaft, ventilator and the like) with the shortest path possible with the highest stiffness in direction, in which vibration force acts.
  • Page 35 During testing a direction of forces generated by moving parts of the machine is crucial. It depends on machine construction as well as a type of occurring damage. Measurement should be done in a direction of the strongest force. In many cases a full diagnostics requires doing measurements in all directions, although generally vibrations are measured in a radial direction in regard of axis of rotation of machine’s shaft.

  • Page 36: How A Way Of Sensor Mounting Impacts Frequency Range

    19. HOW A WAY OF SENSOR MOUNTING IMPACTS FREQUENCY RANGE The sensor can be installed to a tested object using an included magnetic holder. An applied internal thread M6 enables to mount the device in different way. While making a choice, note its influence on a boundary frequency band of measured vibrations, which results from resonance frequency of the connection.

  • Page 37: Connecting The Mvibe Sensor To A Mobile Device

    20. CONNECTING THE MVIBE SENSOR TO A MOBILE DEVICE If you have used mVIBE software, while On the list find an area of settings In network settings and/or connection testing it by using built-in sensors of a Access point and choose the command...
  • Page 38 Every new mVIBE sensor connects to a Turn on WiFi access point. Next, turn on As to turn on mVIBE sensor, touch its WiFi network DiagnosticNet, protected the measurement device. case in a spot circled in the picture. by the protocol WPA2, password Initiating a turn-on procedure is “d!@gnost!c”.
  • Page 39 On the settings list choose the After searching measurement devices On the setting list choose the command command Measurement device. connected to a mobile device, from a Measurement channel. list select the one you want to use.
  • Page 40 And select a sensor, which you want to By the button close setting use during a measurement. screen, you will go back to analyses box. Keep in mind you can change its Depending on version of the device, a parameters by adjusting them to list of available sensors may differ.

  • Page 41: Access Point Configuration In Mvibe Device, Restoring Settings

    21. ACCESS POINT CONFIGURATION IN MVIBE DEVICE, RESTORING SETTINGS In order to connect mVIBE sensor to a Enter SSID name of WiFi network and If you forget to which network a sensor WiFi network with different name or as the access password.

  • Page 42: Amplification Calibration

    In order to enter the corrective factors Enter following corrective factors and of the mVIBE sensor, which is in confirm them with the button OK. measurement mode, touch the button , select the command SETTINGS,...

  • Page 43: Charging A Battery

    Battery status, which is placed in a device setting box in the Settings menu. Battery of mVIBE sensor can be charged from any voltage source 5V (±5%) with current efficiency of minimum 600 mA. To connect a device use a cable with a connector M8, it is included in the kit with the device.

  • Page 44: Turning Off The Device, Hardware Off Switch

    24. TURNING OFF THE DEVICE, HARDWARE OFF SWITCH In order to switch off the mVIBE, hold its touch button. LED indicator will change colour to bright purple. After changing colour to a brighter one, if you let the button go the device turns off.
  • Page 46 THE USER’S MANUAL HAS BEEN PRINTED ON THE XEROX PREMIUM NEVERTEAR PAPER IN CASE OF DIRTING WIPE THE MANUAL WITH A WET CLOTH OR WASH IT UNDER HOT WATER...

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