Digital Vibration Meter – VM-420 Industrial Vibrometer, Acceleration 0.1–199.9 m/s², Velocity 0.1–199.9 mm/s, Displacement 0.001–1.999 mm, 10Hz–15kHz,

Digital Vibration Meter – VM-420 Industrial Vibrometer, Acceleration 0.1–199.9 m/s², Velocity 0.1–199.9 mm/s, Displacement 0.001–1.999 mm, 10Hz–15kHz,

INDUSTRIAL VIBRATION METER – VM-420 - Designed for contact vibration measurement on motors, pumps, compressors, fans and rotating machinery. Supports preventive maintenance inspections and routine condition checks in workshops and production environments. 3-IN-1 VIBRATION MEASUREMENT – ACCELERATION VELOCITY DISPLACEMENT - Measures Acceleration 0.1–199.9 m/s² (peak), Velocity 0.1–199.9 mm/s (RMS) and Displacement 0.001–1.999 mm (p-p) within 10Hz–15kHz acceleration range for multi-parameter machine evaluation. DUAL FREQUENCY ACCELERATION MODE – HI / LO SELECTION - High frequency mode supports 1kHz–15kHz acceleration analysis, while low frequency 10Hz–1kHz mode is used for general machine vibration assessment. INTEGRATED SHEAR-TYPE SENSOR – STABLE CONTACT MEASUREMENT - Built-in piezoelectric accelerometer provides consistent signal capture during handheld testing without external wiring. CLEAR BACKLIT LCD – FAST FIELD READINGS - 3½ digit display updates every second and allows value hold for documentation during inspection rounds. AC SIGNAL OUTPUT – EXTENDED DIAGNOSTIC OPTIONS - 2V peak AC output enables connection to external analyzers for additional signal evaluation if required. DESIGNED FOR ROUTINE MACHINE INSPECTION - Suitable for condition monitoring workflows, imbalance detection and vibration level comparison across inspection intervals. WHAT IT IS / WHAT IT IS NOT - VM-420 is a handheld contact vibration meter for periodic diagnostics. It does not perform FFT spectrum analysis or continuous online monitoring. The VVV-Group VM-420 Digital Vibration Meter is a handheld diagnostic instrument designed for routine vibration measurement on rotating machinery in industrial and mechanical environments. The device allows technicians and maintenance engineers to quickly measure vibration levels on motors, pumps, compressors, fans, gearboxes and other equipment where vibration monitoring is part of preventive maintenance routines. VM-420 is designed as a portable contact vibration meter, allowing measurements to be taken directly on machine surfaces during inspection rounds or troubleshooting procedures. The instrument combines three vibration measurement parameters in a compact handheld device, making it suitable for general machine condition evaluation. What the Instrument Measures VM-420 measures the main vibration parameters used in machine diagnostics: Acceleration: 0.1–199.9 m/s² (peak) Velocity: 0.1–199.9 mm/s (RMS) Displacement: 0.001–1.999 mm (p-p) Acceleration measurement supports two frequency ranges: Low frequency mode: 10Hz–1kHz High frequency mode: 1kHz–15kHz These modes allow technicians to observe different vibration characteristics depending on machine type and operating conditions. How the Meter Is Used During Maintenance During a typical inspection routine, a technician places the probe directly on machine surfaces such as bearing housings, motor frames, pump casings or gearbox covers. Multiple measurements are taken across different points of the machine and the vibration levels are compared to observe variations in machine behavior. Because the sensor is integrated into the instrument body, the VM-420 allows direct handheld vibration measurement without external cables or accessories. This design supports quick vibration checks across multiple machines during maintenance rounds. Typical Industrial Applications VM-420 is commonly used for vibration inspection in environments such as: Manufacturing facilities Mechanical workshops Maintenance service companies HVAC system inspection Pump and compressor diagnostics General industrial machinery monitoring In these environments the instrument is used as a portable screening tool to observe vibration levels and compare readings during maintenance inspections. Measurement Workflow 1. Power on the device 2. Select the measurement mode (Acceleration / Velocity / Displacement) 3. Place the probe on the machine surface 4. Observe the vibration value on the LCD display 5. Record or compare readings across multiple measurement points This workflow allows technicians to perform vibration measurements quickly across several machines during routine maintenance. Design Characteristics of VM-420 VM-420 features a built-in piezoelectric vibration sensor, which simplifies operation by eliminating the need for external probes or cables. The device includes a backlit LCD display, data hold capability and AC signal output for connection to external analyzers when additional signal observation is required. These features make the VM-420 suitable for portable machine vibration checks and routine industrial diagnostics. Instrument Scope VM-420 is designed as a handheld vibration meter for periodic machine diagnostics and vibration level observation. It is not intended to replace advanced laboratory vibration analyzers or permanently installed monitoring systems, but it provides practical vibration measurement capability for field inspections.