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Summary of Contents for IMV CORPORATION VM-4424S
- Page 1 INSTRUCTION MANUAL Portable Vibrometer: VM-4424S/H IMV CORPORATION Document Number TVE-6-3791 I s s u a n c e D a t e April 9, 2012 V e r s i o n 1.0.3 Pages (Incl. Cover)
- Page 2 Revision History Date Details Mar 03, 2012 1.0.0 New Issue Corrected Figures and phrases. Mar 22, 2012 1.0.1 Added optional accessories. Added Preparation(3-1) Apr 09, 2012 1.0.2 Added Definitions(10), including H-func August 07, 2012 1.0.3 Added Title for BRG and H-func...
- Page 3 目 次 1. Introduction ..........................1 1-1. Panel Description ........................2 1-2. Package Contents ........................3 2. Outline ............................4 2-1. SmartVibro ..........................4 2-2 Features ..........................4 3. Measurement ..........................5 3.1 Before Getting Started......................6 3-2. Measurement Screen ......................7 3-3. Operations during Measurement ...................8 4. Setting............................10 4-1.
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Page 4: Introduction
1. Introduction We truly appreciate your purchase. Please read this manual carefully before use and follow the cautions below for your safety. CAUTION 1. If the subject of the measurement could be hot, rotating, or near the movable parts, assure the safety and fix the pickup for measurement. Do NOT hold the pickup manually in these cases to avoid any possible accidents;... -
Page 5: Panel Description
Standard Model Japanese English High-End Model Japanese English In this manual, panel displays of the standard model, VM-4424S, will be used to explain basic operation in Chapter 3. Additional functions of the high-end model, VM-4424H, will follow in Chapter 5. -
Page 6: Package Contents
1-2. Package Contents Product and Accessories for the VM-4424S/H (1) Standard Product and Accessories Products Model Note Figure SmartVibro VM-4424S/H Pickup VP-4416 Piezoelectric Type Handheld probe (with a Probe nut). － Φ6mm x 195mm 1.5m cable with a plug at one end. -
Page 7: Outline
2. Outline 2-1. SmartVibro SmartVibro is an acceleration meter placing emphasis on analysis, which is equipped with functions of H-function measurement, i.e., envelope processing. This machine serves various uses in measurement including checking the machines and equipment from various points of view. With SmartVibro, you can not only analyze the bearing, but also measure the acceleration amount and check fluctuation components in low-speed rotating machinery bearings. -
Page 8: Measurement
3. Measurement AC OUT: AC output of measurement data. DC OUT: DC output of measurement data. 。 Pickup Connector Power LCD Panel: Touch panel display. Backlight Switch Function Button (R): Displays the setting screen, range screen during measurement, etc. Function Button (L): Starts/Stops measurement. -
Page 9: Before Getting Started
3.1 Before Getting Started (1) You can select the computing method for velocity, acceleration, and displacement. Refer to the Chapter 4-2 for more details. Initial settings are as follows: : rms ■Acceleration : rms ■Velocity : EQP (Equivalent Peak) ■Displacement (2) Check the polarity carefully, and set two (2) AA batteries in the battery box. -
Page 10: Measurement Screen
Japanese English Fig 2 Initial Screen (1) Standard Measurement Mode VM-4424S is equipped with this mode only. (2) Measurement Range Bar This shows the level of measurement data. The data is not absolute, but rough indication. (3) Function Indicator Valid functions are indicated. In the Fig 2, “Start” and “Setting” are operative. -
Page 11: Operations During Measurement
3-3. Operations during Measurement When the device is not measuring, “Start” is shown in the function indicator on the screen. (Fig 2) Pressing the function button L would start measurement. The screen displays measurement status. (Fig 3) Once you press the same function button or touch the “Hold” on the touch screen would hold measurement and display the result at that point. - Page 12 Japanese English Fig 4 Display during Changing the Range Touch here to zoom out. Japanese English Fig 5 Enlarged...
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Page 13: Setting
4. Setting As shown in the Fig 6, the setting screen will appear when you press the function button R when “setting” is indicated in the function indicator. (Fig 7) Japanese English Fig 6 “Setting” in the Function Indicator Japanese English Fig 7 Mode and Calculation Setting Screen... -
Page 14: Mode Setting
4-1. Mode Setting When “Vel.” Is selected for the Mode (Fig 7), the physical amount is shown at the top of the measurement screen. Also, the enlarged screen will show the physical amount accordingly. Japanese English Fig 8 Mode Setting As you touch the button by “Mode,”... -
Page 15: Calculation Setting
(1) AC This is equivalent to “ENV” with the VM-4416. In this setting, the device rectifies only fluctuation of the H-function (envelope waveform), display the result, and conducts DC output. H-function is suitable to measure the relatively high components of 2kHz–15kHz generated from the source of vibration generation of low frequency below 1kHz, and an inaudible row signal is transformed to an audible signal by converting it into the signal below 1kHz. - Page 16 Japanese English Fig 10 Example of the Setting Screen The calculation method also will be changed as you touch the button on the screen in the following order: Velocity: “rms” “EQP” “Peak” Acceleration: “rms” “EQP” “Peak” Displacement: “EQP” “Peak” Below is a brief description of each calculation method. rms: Root mean square.
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Page 17: Filter
4-3. Filter You can change the settings of high-pass (HPF) and low-pass filters (LPF). Pressing “Set” would bring you to the screen indicated in Fig 11. By touching the triangles on the screen, you can change the frequency of each filter. Japanese English Fig 11 Example of the Filter Setting... -
Page 18: Auto Range
4-4. Auto Range In the setting section, the menu will be switched in the following order as you touch any icon: → → Japanese English Fig 12 Auto Range Setting Page Auto Range ON: Range will be adjusted automatically during measurement. “Range” will not be indicated on the measurement display, namely in this case the function button R is not effective. -
Page 19: Sensitivity Setting Of Ac And Dc Output
4-6. Sensitivity Setting of AC and DC Output Fig 13 will appear as this icon is selected. Japanese English Fig 13 AC and DC Output Sensitivity Setting Page This function set the full-scale value to the AC Output Voltage(1V). Display in the Figure 14 will appear once you press “Set.”... - Page 20 Japanese English Fig 14 AC Output Sensitivity Setting Page This function set the full-scale value to the DC Output Voltage(1V).Display in the Fig 15 will appear once you press “Set.” Japanese English Fig 15 DC Output Sensitivity Setting Page Setting method is the same as the AC sensitivity setting. You can set the sensitivity as follows: Velocity: 1500 →...
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Page 21: Digital Volume
4-7. Digital Volume The sound of vibration during measurement is audible on earphones plugged in the AC outlet. With the volume button, you can control the volume level from 10% to 100% by 10%. 4-8. Battery Setting You can go to the next page by touching the “Next Page” indication on the screen. You can go back to page 1 by touching “Next Page”... -
Page 22: Auto Power Off
4-9. Auto Power OFF Auto Pwr OFF: ON The device will be turned off automatically in 30 minutes. 4-10. Contrast You can adjust the contrast of the screen from -50% to +50% at +25% intervals 4-11. Language Setting On page 3, you can select language and check the version. Japanese English Fig 18 Language Setting and Version Information... -
Page 23: Version Information
4-12. Version Information Firmware version will be displayed as you press the View button in the Fig 19. Japanese English Fig 19 Version Information... -
Page 24: Battery Indicator
4-13. Battery Indicator Battery indicator will appear when you press the function button L below “Pwr Info” indication. Japanese English Fig 20 Pwr Info Indication Japanese English Fig 21 Battery Information... -
Page 25: The High-End Model; Vm-4424H
5. The High-End Model; VM-4424H VM-4424H is equipped with the FFT and waveform saving functions. (Note: Sections from here is not relevant to the VM-4424S functions). FFT: FFT Mode Equipped only with the VM-4424H. Data Save: Data Save Mode Waveform data will be stored in the SD card as plain text. -
Page 26: Fft Setting
Japanese English Fig 23 Details of the FFT (1) The cursor, indicated as a black dot on the screen, will move from one peak to another peak. (2) MAX: Maximum value of the gathered data. Cur: Value pointed by the cursor. (3) Slide the cursor. -
Page 27: Waveform Save
Japanese English Fig 24 FFT Parameter Setting 5-2 Waveform Save 5-2-1. Waveform Data Save Fig 25 is shown when you select <Waveform Save> icon in the measurement mode. Japanese English Fig 25 Data Gathering Start... - Page 28 Once you press “Start” on the screen or button in Fig 25, Fig 26 will appear. Japanese English Fig 26 Data Gathering Pressing/Touching “Aq Start” in Fig 26 starts gathering the data. Once it is completed, Fig 27 appears. Press/Touch “Save” to save the data in a SD card. Data will be numbered automatically in series starting from 0000.
- Page 29 Japanese English Fig 27 Completed Data Gathering...
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Page 30: Data Save Settings
5-2-2. Data Save Settings Fig 28 is the display of data save setting. Select this icon: Go to page 2, and set the save points. Japanese English Fig 28 Parameter Setting of Data Save Select the time to save the data. You can select from 1s, 0.5s, 0.2s, or 0.1s. -
Page 31: Specifications
6. Specifications 6-1. SmartVibro Sampling Frequency 51200Hz Acceleration: 10Hz – 10kHz Frequency Range Bearing: 1kHz - 10kHz H-function: 3Hz - 1kHz (Envelope process of 2 – 15kHz by BPF) ±5%(10Hz～5kHz) Frequency Characteristics ±30%(5Hz～10kHz) Acceleration: BRG, H-Func, 6-Range (1000, 300, 100, 30, 10,3m/s ), Auto Full Scale Velocity: 6-Range (1000, 300, 100, 30, 10, 3mm/s), Auto... -
Page 32: Troubleshooting
7. Troubleshooting (1) Over range When the over range icon, , appeared during use, modify the range setting as explained in Figure 4. Over range will be adjusted automatically in the auto range setting. (2) No display Possible causes are following: (A) Battery voltage is below 2.0V. -
Page 33: How To Fix The Pickup And Frequency
9. How to Fix the Pickup and Frequency Mounting a pickup on a vibrating object create a vibrating system with its own resonant frequency, called Mounted Resonant Frequency. This frequency vary with mounting method and state, and for high frequency characteristics, it is much influenceable. -
Page 34: Definitions
10. Definitions rms：Root mean square. This is the square root of mean of the values x , for a set of measuring data x , .., x , namely ISO standard sets RMS of vibration velocity as evaluation criteria of the vibration velocity, which is also known as vibration severity. - Page 35 Envelope Waveform: Envelope curve that reflects the track of the vibration waveform peaks. For example, vibration generated due to deterioration of rolling element bearing always occurs from rotation in the range of DC to 1kHz, which was modulated in the bearing’s natural frequency, 2 – 15kHz, then transmitted to the bearing housing.
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