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ONO SOKKI VW-3100 Portable Vibration Meter

ONO SOKKI
Supplier / Manufacturer: ONO SOKKI
Model: VW-3100

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All-in-one portable device for vibration detection, analysis, and evaluation.

The VW-3100 is a handheld vibration meter from Ono Sokki that simultaneously measures acceleration, velocity, and displacement in one compact unit. Its variable band-pass listening function helps detect abnormalities and early signs of machine deterioration. Measurement data can be recorded in WAV/ORF formats for post-analysis using O-Solution software, making it ideal for equipment inspection, maintenance, and quality control.
1. Simultaneous measurement and display of 3 physical quantities of vibration in the V3 Bands, enabling improved work efficiency by accurately identifying abnormalities. 2.Listening function with variable band-pass filters for anomaly detection and skill transfer 3. Simultaneous data recording during inspections (ORF/WAV format), facilitating advanced diagnostics through post-analysis software like the O-Solution 4. A wide range of optional functions to support on-site measurements and evaluations

System configurations & sensors


Standard functions

Simultaneous measurement of acceleration, velocity, and displacement

– To identify machine failures, it is necessary to measure three vibration values (acceleration, velocity, and displacement).
The VW-3100 can simultaneously calculate and display these values using the V3 band, allowing engineers to accurately identify abnormalities and improve work efficiency.

Extracting abnormal sounds and signs of deterioration

– With a variable band-pass filter, users can arbitrarily set the frequency range and isolate specific vibration components for precise anomaly detection.

Capable of listening to vibration sounds

– The sensor signal can be converted into audible vibration sounds for intuitive diagnostics.
By narrowing the frequency band using a variable filter, it becomes easier to detect abnormal machine noise.
It can also function as a modern alternative to an auscultation rod, enhancing field-level troubleshooting.


Easily switch between four types of screens displayed. You can better understand phenomena and the measurement efficiency is improved. Single : Check vibration value, rotation speed, and equipment name. Triple : Measure three vibration values simultaneously Trend : Understand the fluctuation of vibration values. List : Grasp all measured values at once
Sensor Input
Signal InputBuilt-in preamplifier accelerometer (e.g., NP-3000 series) External voltage signal input (switchable)
Number of Channels1 channel
Input ConnectorBNC (C02 type), waterproof (when sensor connected)
Input Voltage Range±5 V
Constant Current Drive (CCLD)Drive voltage: +23 V to 26 V Constant current: 4 mA ± 25 % (at 25 ℃)
Absolute Maximum Input Voltage±30 V (peak)
TEDSIEEE 1451.4 Ver.0.9 / 1.0
Measurement Range Setting0.100 m/s² to 50000 m/s² (Range depends on sensor sensitivity)
Unit Calibration FunctionSelectable: m/s² or EU
EU TypemV/EU, V/EU, EU/V, EU/mV
Sensor Sensitivity Setting000.0100 to 999.9999
Analog FilterLow-cut (High-pass filter)OFF / 1 Hz / 3 Hz / 10 Hz
-3 dB at fc (±1 dB), -18 dB/Oct
High-cut (Low-pass filter)OFF / 1 kHz / 10 kHz
-3 dB at fc (±1 dB), -18 dB/Oct
Input Frequency Response3 Hz to 15 kHz ±0.5 dB, 1.5 Hz to 20 kHz ±3.0 dB
Reference: 80 Hz
External Signal Input
FunctionRotational speed input / Trigger input (switchable)
Number of Channels1 channel
Input Connectorφ2.5 mm mini-jack
Pulses per Revolution0.5 to 360 P/R (settable in 0.5 increments)
Analysis Section
A/D Conversion Resolution24 bit
Sampling Frequency64 kHz
Number of Bands3 bands
Digital FilterHigh-pass filter / Low-pass filterOFF / 10 Hz / 30 Hz / 50 Hz / 100 Hz / 300 Hz / 500 Hz / 1 kHz / 3 kHz / 5 kHz / 10 kHz / 20 kHz
-3 dB at fc (±1 dB), -48 dB/Oct
Vibration Severity FilterISO 2954:2012 compliant filter (High-pass 10 Hz, Low-pass 1 kHz)
Measurement Frequency RangeAcceleration1.5 Hz to 20 kHz
Velocity3 Hz to 3 kHz
Displacement3 Hz to 500 Hz
Computation Section
Measurement ItemsRMSRMS with time constant
Time constants: 8 ms / 16 ms / 32 ms / 63 ms / 125 ms / 250 ms / 500 ms / 630 ms / 1 s
PEAKMaximum absolute value of time waveform
P-PTwice the PEAK value
CFRatio of maximum PEAK to maximum RMS every 500 ms (PEAK / RMS)
EQpeak√2 times RMS
EQp-pTwice EQpeak (EQp-p can only be measured when [Mode] = [Displacement] in [V3 band conditions])
Computation ItemsInstantaneous value / Maximum value / Average value (calculated simultaneously for each measurement item)
Display Section
Display4.3-inch transmissive LCD with capacitive touch panel
Display UpdateComputation valuesSelectable: 500 ms / 1 s
External Interface
LANReceive/transmit measurement conditions and data (Option VW-0350, VW-0360 required)
USB Bus PowerFunctionPower supply only (USB PD not supported)
SD CardSupported CardsSD, SDHC, SDXC up to 64 GB
Output Section
Analog OutputAC/THR ConnectorAC output / DC output (switchable)
DC ConnectorDC output
Output Impedance50 Ω
AC / THR OutputOutput TargetAC: Signal after performing calculation for the selected 1 band THR: Signal immediately before performing the digital processing
Output Connectorφ2.5 mm mini-jack
Output Voltage Range±5 V
Offset VoltageWithin ±20 mV
DC OutputOutput TargetSignal before/after passing the band-pass filter for any 1 band
Output Connectorφ2.5 mm mini-jack
Output Voltage Range0 to +5 V
Offset VoltageWithin ±20 mV
PHONE OutputOutput TargetSignal before/after passing the band-pass filter for any 1 band
Output Connectorφ3.5 mm mini-jack ×1 (connect earphones/headphones with φ3.5 mm stereo mini plug (3-pole))
Maximum Output18 mW (typical, with 20 Ω load)
Volume Control20 steps
CAL OutputOutput Signal (AC)Sine wave 160 Hz, amplitude 1.0 V (peak) ±3 %
Output Signal (DC)0.707 V ±3 % (excluding DC offset voltage)
Output Gain×1, ×2, ×5, ×10, ×20, ×50, ×100
General Specifications
BatteryTypeAA alkaline batteries (LR6) or NiMH rechargeable batteries (HR6), 4 pcs
Continuous Operating TimeLR6: 4 hours or more (with default vibration meter mode, using NP-3331C, analog output, headphone output OFF) Measured with Panasonic EVOLTA NEO
USB Bus PowerInput Voltage RangeDC 4.75 V to 5.25 V
Absolute Maximum Input VoltageDC 6.5 V
Current Consumption900 mA or less at 5 V supply
Mobile BatteryOperation limited to those meeting above power specs
Clock Backup BatteryLithium rechargeable battery
Operating Temperature Range-10 ℃ to +50 ℃ (excluding batteries)
Operating Humidity Range20 to 90 % RH (non-condensing)
Storage Temperature Range-20 ℃ to +60 ℃ (excluding batteries)
Storage Humidity Range10 to 90 % RH (non-condensing)
Dimensions104 mm(W) × 223 mm(H) × 42 mm(D)
MassApprox. 625 g (main unit only, including batteries)
Water/Dust ResistanceIP54 (with NP-3331WC connected, headphone and external input terminal caps, bottom cover, and battery cover attached)
Compliance StandardsCE Marking EMC Directive: 2014/30/EU, EN 61326-1:2021 RoHS Directive: 2011/65/EU, EN IEC 63000
AccessoriesQuick Start Guide / AX-501 ×1 / SD card / BNC cap
* fc: cutoff frequency