ONO SOKKI VW-3100 Portable Vibration Meter
Portable vibration meter for machine inspection, maintenance, and vibration diagnostics with simultaneous acceleration, velocity, and displacement measurement.
Portable Vibration Meter for Machine Inspection and Maintenance
The ONO SOKKI VW-3100 is a portable vibration meter designed for on-site machine inspection, maintenance, and vibration diagnostics. It simultaneously measures acceleration, velocity, and displacement, helping engineers identify machine vibration and signs of deterioration efficiently.
The VW-3100 combines vibration measurement, listening, and evaluation functions in one handheld instrument. Its variable band-pass filters allow specific vibration frequency ranges to be isolated, helping users detect abnormal sounds and vibration components that may indicate developing machine problems.
3 Vibration Parameters
Simultaneous acceleration, velocity, and displacement measurement
1.5 Hz to 20 kHz
Wide acceleration measurement frequency range
Variable Band-Pass Filter
Isolate vibration components and abnormal machine sounds
ORF / WAV Recording
Record inspection data for post-analysis and diagnostics
Simultaneous 3-Parameter Vibration Measurement
Measure acceleration, velocity, and displacement simultaneously using the V3 Bands to evaluate machine vibration from multiple perspectives during a single inspection.
Variable Band-Pass Filtering
Adjust the frequency range to isolate specific vibration components and help identify abnormal vibration and signs of machine deterioration.
Listen to Machine Vibration
Convert sensor signals into audible vibration sounds, allowing engineers to listen for abnormal machine conditions and support diagnostic skill transfer.
ORF and WAV Data Recording
Record vibration measurement data during inspections for later review and advanced analysis using compatible ONO SOKKI software such as O-Solution.
Four Measurement Display Modes
Switch between Single, Triple, Trend, and List displays to review vibration values, rotational speed, trends, and multiple measurement results.
Wide Measurement Frequency Range
Supports acceleration measurement from 1.5 Hz to 20 kHz, velocity from 3 Hz to 3 kHz, and displacement from 3 Hz to 500 Hz.
24-Bit Signal Processing
A 24-bit A/D converter with a 64 kHz sampling frequency supports detailed vibration measurement and analysis.
Portable Field Operation
The handheld unit features a 4.3-inch touchscreen, SD card storage, battery operation, and IP54 protection under specified conditions for on-site inspections.
Machine Condition Inspection
Measure machine vibration during routine inspections to identify abnormal operating conditions and changes in vibration levels.
Preventive Maintenance
Support maintenance programs by checking acceleration, velocity, and displacement during scheduled equipment inspections.
Abnormal Noise Investigation
Use variable band-pass filtering and vibration sound monitoring to isolate frequency ranges associated with abnormal machine noise.
Rotating Equipment Inspection
Evaluate vibration conditions of motors, pumps, fans, bearings, and other rotating machinery during field inspections.
Vibration Trend Monitoring
Record and compare vibration measurements to observe changes in equipment condition over time.
Maintenance Diagnostics
Record vibration data in ORF or WAV format for detailed post-analysis and further investigation of machine conditions.
| 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 |
| -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 Response | 3 Hz to 15 kHz ±0.5 dB, 1.5 Hz to 20 kHz ±3.0 dB | |
| 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 |
| 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 % |
| 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 |
| Continuous Operating Time |
LR6: 4 hours or more
(with default vibration meter mode, using NP-3331C,
analog output and 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 | ||
