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Vibration Meters

Vibration Analyzer VA-14NEW

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Features

The VA-14 is a Vibration Analyzer with FFT analysis function that comprehensively includes the functions required for equipment diagnosis and on-site measurement. It is approx. 200 g lighter than the previous model VA-12 and becomes thin in shape, making it easier to hold with one hand. The new LAN terminal strengthens the connection with communication devices, allowing command control of the instrument and file transfer remotely. In addition, by installing the optional program VX-14S, it is possible to connect a microphone and measure sound. As a result, the VA-14 covers can cover not only vibration measurement but also sound frequency analysis and evaluation. It can be used in a variety of measurement situations, including measuring vibrations emitted by rotating objects such as machinery and motors, equipment diagnosis using vibration, and product research and development.

Standard features

 ［Vibration Meter Mode］

It is possible to measure the vibration (acceleration, velocity, displacement).  

●Allows simultaneous measurement of acceleration, velocity, displacement, and acceleration crest factor. 
Measurement results can be displayed on one screen, allowing you to work efficiently. 

●Filters (HPF, LPF) can be set for acceleration, velocity, and displacement, respectively ＜NEW＞

 ●Conforms to vibration severity (ISO 2954:2012) ＜NEW＞
 The electrical characteristics from 10 Hz (HPF) to 1 kHz (LPF) meet the frequency range specified in the vibration severity standard (ISO 2954:2012).

●Time-Level graph display of vibration values ＜NEW＞​​
This function is useful for measuring the vibration of machines that have fluctuating vibrations.



 
［FFT Analyzer Mode］
 
It possible to check each frequency component of vibration.
It can be used for equipment diagnosis, machine design and development.

●Real-time analysis frequency 20 kHz

●Time waveform display and spectrum display with up to 3,200 spectral lines

●Simultaneous saving of linear average value and maximum value ＜NEW＞






●Two types of peak detection functions ＜NEW＞
・Displays top 10 spectra with “TOP10”
・Displays top 10 peaks with “PEAK10”




●Waveform recording (Vibration waveform data is saved simultaneously with FFT analysis)

It is possible to store vibration waveform data in WAVE format while performing FFT analysis on-site.
Any areas of concern can be analyzed in detail later using WAVE data.

The duration of the recording time depends on the average count.
Up to 1 MB can be recorded.
For an estimate of the maximum recording time, please refer to the table below.






●Total harmonic distortion ＜NEW＞

It is possible to perform frequency analysis of sound and calculate the total harmonic distortion.
(When connecting a microphone, the optional "Superior function program VX-14S" must be installed.)

Distortion occurs when the original signal waveform output from the speaker is mixed with other signals, causing the waveform to change. The total harmonic distortion indicates the degree of distortion.
It evaluates the extent to which extraneous harmonics are included in the original signal (the main signal component, amplitude waveform).
The total harmonic distortion is calculated from the ratio of the effective value of the fundamental wave component to the effective value of all harmonic components.
 
Example: It is used to evaluate "distortion," which is one of the indicators used to measure the sound performance of audio equipment (headphones and earphones).



 
Equipped with "function keys" ＜NEW＞

Assign functions and perform operations with one push.

 
Equipped with "Key lock" and "Operation lock" ＜NEW＞

The key lock prevents operational errors, and the operation lock restricts changes to settings, reducing errors at the measurement site.



On-site calibration using the calibration exciter VE-10 ＜NEW＞

In addition to inputting the sensitivity value on the sensitivity sheet attached to the accelerometer, the sensitivity can be adjusted using the calibration exciter VE-10. Knowing the correct sensitivity will result in more accurate measurement results.


 Related Products (Connection Configuration Example)


Superior function program VX-14S

Superior function program VX-14S
◆Sound Measurement (Operates in FFT mode)
［Microphone and preamplifier connection function］
　
　Allows sound measurement by connecting a microphone.
　Covers both vibration and sound evaluation with just one VA-14 unit.

　Usage Examples:
　FFT analysis separates noise and vibration. This can be used to evaluate
　the quietness of machines, detect abnormal noise, and consider
　countermeasures.
 ◆ Enhanced connection with communication devices
［Communication function (LAN/USB)］

　By connecting via either USB or LAN, communication with a computer is possible,  　and control of the device along with the following functions can be used via 　commands:
 
　● Acquisition of display values
　　(vibration value, time waveform, FFT analysis value).
　● Continuous acquisition of instantaneous values
　　(vibration value: 100 ms, FFT analysis value＊).      　　　　　　　　　　　　　　         　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
　● Acquisition of calculated values
　　(vibration value: calculation cycle 10 s/1 m/user setting, FFT analysis value: after calculation).
  　 ＊Available when connected to LAN.
 
　Usage Examples:
　Utilize measurement data from VA-14 to build pass/fail evaluation systems       on production line and vibration monitoring systems.
　＊Software for the computer is required separately.
fail evaluation systems on production line and vibration monitoring systems.
 
◆Long time vibration recording (Operates in vibration meter mode)
［Auto store function］
　Instantaneous values and calculated values can be recorded continuously
　at the same time.
　Allows measurement of time-based changes in vibration values.
［Long time waveform recording function］

　Records vibration waveforms in WAVE format.
　(Select one from acceleration, velocity, or displacement.)
　Recorded data can be used to perform frequency analysis on a computer.
　
　Maximum recording time: 200 hours

　


　Usage Examples:
　Evaluate changes in vibration and the effects of vibration when load
　conditions, such as the rotational speed of equipment and pump water
　volume are changed.

　

（Capacity of SD card and Recording time of waveform.）


 ◆Accurate evaluation of machinery condition
［Peak calculation function］

　Calculates true peak values not only for acceleration but also for velocity and 　displacement.
　In addition to the equivalent peak value which is calculated from RMS multiplied by 　√2, the true peak value of the vibration waveform can be calculated, allowing for 　more accurate evaluation.
　
　
　Usage Examples:
　Helps detect machine and equipment failures in early stage,
　improving production efficiency.
　
　

Applications

  • 　 　 Analyze unusual vibrations occurring irregularly Example3 　 　

    Analyze unusual vibrations occurring irregularly Example3

    　 　
  • 　 　 Determine a natural frequency Example1 　 　

    Determine a natural frequency Example1

    　 　
  • 　 　 Perform frequency analysis for devising countermeasures against vibrations Example3 　 　

    Perform frequency analysis for devising countermeasures against vibrations Example3

    　 　
  • 　 　 Measure the damping ratio of resonating machinery Example1 　 　

    Measure the damping ratio of resonating machinery Example1

    　 　
  • 　 　 Perform acceptance inspection on equipment to be installed 　 　

    Perform acceptance inspection on equipment to be installed

    　 　
  • 　 　 Vibration measurement of start-up test after regular repair 　 　 　

    Vibration measurement of start-up test after regular repair

    　 　 　
  • 　 　 Perform detailed diagnosis of problem spots in a plant 　 Plant 　 　

    Perform detailed diagnosis of problem spots in a plant

    　 　 　
  • 　 　 Detect bearing problems Example2 　 　

    Detect bearing problems Example2

    　 　
  • 　 　 Perform simultaneous diagnosis and waveform recording Example1 　 　

    Perform simultaneous diagnosis and waveform recording Example1

    　 　
  • 　 　 Low-frequency and low-amplitude vibration Measurement Example4 　 　

    Low-frequency and low-amplitude vibration Measurement Example4

    　 　

Library

Options

Carrying Case (Option)

Carrying Case (Option)

This is a dedicated case for carrying the VA-14 and other accessories.
It can also store accelerometer and microphone, and is lightweight and durable.

Hand Strap (Option)

Hand Strap (Option)

Attaching the strap to prevent it from falling makes it easier to hold the VA-14 with one hand, making operation easier.
The strap length can be adjusted.

PVseries Piezoelectric Accelerometer

Piezoelectric Accelerometer

Wide range of products, including ultra-compact, high temperature, 3-axis, and high sensitivity.
It is possible to choose the sensor according to the purpose of measurement.

Related pages

VE-10 Calibration Exciter

VE-10

For calibration of accelerometers and vibration meters on-site

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NC-75 Sound Calibrator

NC-75

It is used as a calibration sound source that generates a sound of 94 dB at 1 kHz.

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AS-70 Waveform analysis software

AS-70

Capable of reading WAVE files, graph display, normalization processing, frequency analysis(FFT analysis, octave analysis),
file output, and playback.

Related pages

Vibration Analyzer VA-14

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