Vibromètre portatif LUTRON VB-8200

Marque: LUTRON, Taïwan

LUTRON VB-8200 User Manual PDF

It is a handheld industrial vibration meter for equipment inspection, vibration severity measurement of moteurs, pompes et ventilateurs. It only measures vibration velocity and acceleration, without displacement measurement (VB-8220 is the version with displacement function).

✅ Core Functions

1. Mesures: Vibration velocity and vibration acceleration; supports RMS (Moyenne quadratique) and Peak reading.
2. Reading functions: Data Hold, Maximum / Minimum value recording.
3. Communication: Isolated RS232 serial output, compatible with host computer software for data acquisition and recording.
4. Large LCD display, low battery indicator and auto power-off.
5. Separated piezoelectric vibration probe, supplied with magnetic base for easy attachment to equipment housing for measurement.
6. Complies with ISO 2954 for vibration transducers, used for equipment vibration severity assessment per ISO 2372.

📋 Technical Specifications

🛠️ Typical Applications

Routine inspection of rotating machinery: moteurs, pompes centrifuges, les fans, gearboxes, compresseurs d'air

Preliminary screening of faults: rotor unbalance, désalignement, bearing looseness, foundation looseness

Factory predictive maintenance, equipment acceptance, vibration severity classification (ISO2372)

Laboratory and factory outgoing simple vibration testing

📦 Standard Accessories

Unité principale, separated vibration sensor, magnetic mounting base, 9V battery, hard carrying case. Host computer acquisition software is optional.

⚠️ Model Differentiation (Easily Confused Models)

VB-8200: Velocity + Accélération, no displacement, RS232

VB-8220: Velocity + Accélération + Peak-to-Peak displacement (2mm p-p)

VB-8212: Version améliorée, some versions with temperature measurement

📌 Operation Notes

1. Magnetic base is suitable for flat metal surfaces; use probe tip contact measurement for rough surfaces.
2. Lower frequency limit at 10Hz, not suitable for low-frequency large-displacement equipment (par exemple. large steam turbines). Low-frequency measurement requires dedicated low-frequency vibration meters.
3. Only for simple inspection and severity evaluation. Spectrum analysis and bearing envelope demodulation require professional vibration analyzers (not this unit).

❗ Common Troubleshooting

1. Fluctuating readings: Broken probe cable, poor contact of magnetic base, rusted measuring surface.
2. Zero reading: Damaged probe or loose probe connector.
3. Failed PC data upload: RS232-to-USB driver fault, mismatched communication parameters.
4. Low battery warning: Insufficient battery voltage leads to degraded reading accuracy.

Référence de sélection alternative

Alternatives nationales: Anbo VBT series, VM series vibration meters.

Équivalents importés: BK, IMV portable vibration meters.

Core Application of LUTRON VB-8200 Vibration Meter

Résumé: Handheld simple vibration measuring instrument, used to measure vibration severity of rotating machinery for routine predictive maintenance, judge whether equipment vibration exceeds threshold and screen early faults.

Measurable Physical Quantities

Vibration Velocity VEL: mm/s (le plus couramment utilisé; ISO2372 equipment rating uses this parameter)

Vibration Acceleration ACC: m/s²

Reading modes: RMS / Peak; with max/min recording and data hold

❗No support for vibration displacement, spectrum analysis, demodulation or time-domain waveform. Cannot perform precision fault diagnosis; only severity evaluation.

Main Measurement Objects (Factory Inspection)

Moteurs, pompes centrifuges, les fans, ventilateurs de tour de refroidissement, gear reducers, compresseurs d'air

Small rotating production equipment

Types of Faults for Preliminary Screening (Qualitative)

1. Rotor unbalance: Uneven mass of rotating parts causing high vibration
2. Misalignment: Coupling misalignment between motor and pump
3. Bearing deterioration: Bearing wear leads to vibration increase (only detects higher vibration level; cannot identify specific bearing fault type)
4. Loose anchor / foundation, insufficient housing rigidity
5. Imbalance caused by fouling and deposit buildup on blades or impellers

Typical Working Scenarios

1. Routine equipment inspection: Inspectors measure vibration at fixed measuring points periodically, record values and compare historical data to monitor vibration rising trend.
2. New equipment / overhaul acceptance: Measure vibration after equipment maintenance and judge compliance against ISO2372 standard.
3. Preliminary fault screening: Rapid vibration measurement when abnormal noise occurs to assess vibration severity. If vibration exceeds limit, use professional vibration analyzer for further spectrum diagnosis.
4. Enregistrement de données: Built-in RS232 serial port connects to PC for vibration data collection and inspection report generation.

Limites (Critical for Avoiding Misuse)

1. Gamme de fréquence: 10Hz ~ 1kHz, not applicable to low-frequency large units (steam turbines, large low-speed motors)
2. Only severity measurement, no spectrum function to distinguish fault types. It only tells you “vibration is high”, and cannot easily tell whether it is unbalance or bearing failure.
3. Not suitable for high-frequency impact measurement of precision bearings (no envelope demodulation function).
4. Only measures casing surface vibration, not shaft vibration (shaft vibration requires eddy current probes).

Simple Example

For a water pump, measure vibration velocity at bearing position weekly.

ISO2372 standard: Within 10mm/s = Good; above 11.2mm/s requires monitored attention; above 18mm/s is dangerous and equipment shall be shut down for maintenance. VB-8200 reads this mm/s value.

Full Model List of LUTRON VB-82xx Series Vibration Meters

Même série (VB82xx inspection vibration meters, 10Hz～1kHz, separated piezoelectric probe, ISO2954). VB-8200 is the base model. Models differ by measurement parameters, data storage and channel count.

Capteurs compatibles (Interchangeable within Series)

VB-83: Standard piezoelectric probe for VB82xx series, equipped with magnetic base, BNC connector. Interchangeable on VB-8200 / VB-8206SD / BVB-8207SD and other models.

✅ Directives de sélection rapide

1. Displacement required? VB-8200/8201HA/8210/PVB820: no displacement; 8220, 8206SD, 8230SD, BVB-8207SD support displacement.
2. SD local storage required? Models with suffix SD support SD card logging; models without SD only support real-time online acquisition via RS232.
3. Quantité de canaux: Canal unique: 8200/8220/8206SD; Dual channel: 8230SD; Four channel: BVB-8207SD.
4. Integrated vs Separated probe: PVB-820, VT-8204: integrated probe; all other VB-82xx: separated BNC probe.

❗Notice

All models in this series only measure vibration severity, without spectrum / envelope demodulation, and cannot perform spectrum-based fault diagnosis.

Uniform frequency response: 10Hz–1kHz, not suitable for low-frequency large units.

VB-82xx series: portable vibration meter, NOT vibration analyzer.

Tableau de comparaison: LUTRON VB-8200 / VB-8220 / VB-8206SD

Positionnement: Portable inspection vibration meters of LUTRON VB-82xx series. No spectrum analysis, vibration severity measurement only. Uniform frequency response: 10Hz～1kHz. Supplied with VB-83 separated piezoelectric probe + magnetic base, BNC interface.

Notes complémentaires

1. All three models cannot perform spectrum analysis or envelope demodulation. They only read vibration magnitude and cannot distinguish unbalance, misalignment or bearing faults. Professional vibration analyzer is required for further diagnosis once vibration exceeds limit.
2. VB-83 probe is interchangeable among the three main units, magnetic base compatible.
3. Alimentation: All use 9V PP3 battery.