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

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The Ono Sokki VW-3100 is an advanced portable vibration meter that combines listening, measurement, and evaluation functions in one unit.

It simultaneously measures acceleration, velocity, and displacement, improving on-site diagnostic efficiency. With a variable band-pass “listening” function, it helps detect mechanical abnormalities and supports skill transfer.

The VW-3100 records data in WAV/ORF formats for post-analysis using Ono Sokki’s O-Solution software. Featuring IP54 protection, 24-bit A/D conversion, and 64 kHz sampling, it delivers high-precision performance ideal for equipment inspection, production line quality testing, and troubleshooting.

Portable Vibration Meter

Model:

VW-3100

Maker:

ONO SOKKI

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4 Key Highlights of the New Products

Simultaneous measurement and display of 3 physical quantities of vibration in the V3 Bands, which enables to improve work efficiency by accurately identifying abnormalities.

Listening function with variable band-pass filters for anomaly detection and skill transfer

Simultaneous data recording during inspections (ORF/WAV format), facilitating advanced diagnostics through post-analysis software like the O-Solution.

A wide range of optional functions to support on-site measurements and evaluations.

System configurations & sensors

List of Functions

Standard functions

① Simultaneous measurement of arbitrary vibration values
– 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.
This allows you to accurately identify abnormalities and improve work efficiency.

② Extracting abnormal sounds and signs of deterioration
– With a variable band pass filter, it is possible to set the frequency range of the band arbitrarily and extract it.

③ Capable of listening to vibration sounds
– The sensor signal can be converted into sounds and listened to.
By narrowing the frequency band with a variable filter, it becomes easier to detect abnormal sounds.
It can also be used as a tool to listen to “vibration sounds” instead of an auscultation rod.

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

Specifications

Sensor Input
Signal Input	Built-in preamplifier accelerometer (e.g., NP-3000 series) External voltage signal input (switchable)
Number of Channels	1 channel
Input Connector	BNC (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)
TEDS	IEEE 1451.4 Ver.0.9 / 1.0
Measurement Range Setting	0.100 m/s² to 50000 m/s² (Range depends on sensor sensitivity)
Unit Calibration Function	Selectable: m/s² or EU
EU Type	mV/EU, V/EU, EU/V, EU/mV
Sensor Sensitivity Setting	000.0100 to 999.9999
Analog Filter	Low-cut (High-pass filter)	OFF / 1 Hz / 3 Hz / 10 Hz
	Low-cut (High-pass filter)	-3 dB at fc (±1 dB), -18 dB/Oct
	High-cut (Low-pass filter)	OFF / 1 kHz / 10 kHz
	High-cut (Low-pass filter)	-3 dB at fc (±1 dB), -18 dB/Oct
Input Frequency Response	3 Hz to 15 kHz ±0.5 dB, 1.5 Hz to 20 kHz ±3.0 dB
Input Frequency Response	Reference: 80 Hz
External Signal Input
Function	Rotational speed input / Trigger input (switchable)
Number of Channels	1 channel
Input Connector	φ2.5 mm mini-jack
Pulses per Revolution	0.5 to 360 P/R (settable in 0.5 increments)
Analysis Section
A/D Conversion Resolution	24 bit
Sampling Frequency	64 kHz
Number of Bands	3 bands
Digital Filter	High-pass filter / Low-pass filter	OFF / 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 Filter	ISO 2954:2012 compliant filter (High-pass 10 Hz, Low-pass 1 kHz)
Measurement Frequency Range	Acceleration	1.5 Hz to 20 kHz
	Velocity	3 Hz to 3 kHz
	Displacement	3 Hz to 500 Hz
Computation Section
Measurement Items	RMS	RMS with time constant
	RMS	Time constants: 8 ms / 16 ms / 32 ms / 63 ms / 125 ms / 250 ms / 500 ms / 630 ms / 1 s
	PEAK	Maximum absolute value of time waveform
	P-P	Twice the PEAK value
	CF	Ratio of maximum PEAK to maximum RMS every 500 ms (PEAK / RMS)
	EQpeak	√2 times RMS
	EQp-p	Twice EQpeak (EQp-p can only be measured when [Mode] = [Displacement] in [V3 band conditions])
Computation Items	Instantaneous value / Maximum value / Average value (calculated simultaneously for each measurement item)
Display Section
Display	4.3-inch transmissive LCD with capacitive touch panel
Display Update	Computation values	Selectable: 500 ms / 1 s
External Interface
LAN	Receive/transmit measurement conditions and data (Option VW-0350, VW-0360 required)
USB Bus Power	Function	Power supply only (USB PD not supported)
SD Card	Supported Cards	SD, SDHC, SDXC up to 64 GB
Output Section
Analog Output	AC/THR Connector	AC output / DC output (switchable)
	DC Connector	DC output
	Output Impedance	50 Ω
AC / THR Output	Output Target	AC: Signal after performing calculation for the selected 1 band THR: Signal immediately before performing the digital processing
	Output Connector	φ2.5 mm mini-jack
	Output Voltage Range	±5 V
	Offset Voltage	Within ±20 mV
DC Output	Output Target	Signal before/after passing the band-pass filter for any 1 band
	Output Connector	φ2.5 mm mini-jack
	Output Voltage Range	0 to +5 V
	Offset Voltage	Within ±20 mV
PHONE Output	Output Target	Signal before/after passing the band-pass filter for any 1 band
	Output Connector	φ3.5 mm mini-jack ×1 (connect earphones/headphones with φ3.5 mm stereo mini plug (3-pole))
	Maximum Output	18 mW (typical, with 20 Ω load)
	Volume Control	20 steps
CAL Output	Output Signal (AC)	Sine wave 160 Hz, amplitude 1.0 V (peak) ±3 %
CAL Output	Output Signal (DC)	0.707 V ±3 % (excluding DC offset voltage)
Output Gain	×1, ×2, ×5, ×10, ×20, ×50, ×100
General Specifications
Battery	Type	AA alkaline batteries (LR6) or NiMH rechargeable batteries (HR6), 4 pcs
Battery	Continuous Operating Time	LR6: 4 hours or more (with default vibration meter mode, using NP-3331C, analog output, headphone output OFF) Measured with Panasonic EVOLTA NEO
USB Bus Power	Input Voltage Range	DC 4.75 V to 5.25 V
	Absolute Maximum Input Voltage	DC 6.5 V
	Current Consumption	900 mA or less at 5 V supply
	Mobile Battery	Operation limited to those meeting above power specs
Clock Backup Battery	Lithium rechargeable battery
Operating Temperature Range	-10 ℃ to +50 ℃ (excluding batteries)
Operating Humidity Range	20 to 90 % RH (non-condensing)
Storage Temperature Range	-20 ℃ to +60 ℃ (excluding batteries)
Storage Humidity Range	10 to 90 % RH (non-condensing)
Dimensions	104 mm(W) × 223 mm(H) × 42 mm(D)
Mass	Approx. 625 g (main unit only, including batteries)
Water/Dust Resistance	IP54 (with NP-3331WC connected, headphone and external input terminal caps, bottom cover, and battery cover attached)
Compliance Standards	CE Marking EMC Directive: 2014/30/EU, EN 61326-1:2021 RoHS Directive: 2011/65/EU, EN IEC 63000
Accessories	Quick Start Guide / AX-501 ×1 / SD card / BNC cap
		* fc: cutoff frequency

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