RION VM-82A Vibration Meter for Vibration Testing

Description

The RION VM-82A is a high-precision, multi-channel-capable portable vibration meter engineered for industrial predictive maintenance, machinery health monitoring, and structural vibration testing. Utilizing advanced signal conditioning and internal digital processing, the instrument delivers real-time measurement of acceleration, velocity, and displacement across rotating assets, including turbines, multi-stage pumps, industrial blowers, and high-load gearboxes. Designed around RION Original Engineering principles, the VM-82A conforms to ISO 2954 and ISO 10816 guidelines, providing standardized diagnostic evaluations of mechanical vibration severity.

TECHNICAL SPECIFICATIONS
Manufacturer: RION Co., Ltd.
Model: VM-82A
Instrument Class: Handheld Vibration Meter
Sensor Compatibility: Piezoelectric Accelerometer (PV-57I standard, CCLD compatible)
Measurement Parameters: Acceleration (ACC), Velocity (VEL), Displacement (DISP)
Acceleration Range: 0.02 to 200 m/s² EQ PEAK (Frequency: 1 Hz to 20 kHz)
Velocity Range: 0.1 to 199.9 mm/s RMS (Frequency: 3 Hz to 1 kHz / 10 Hz to 1 kHz selectable)
Displacement Range: 0.01 to 19.99 mm EQ P-P (Frequency: 3 Hz to 500 Hz / 10 Hz to 500 Hz selectable)
High-pass Filter Settings: 1 Hz, 3 Hz, 10 Hz, 1 kHz
Low-pass Filter Settings: 1 kHz, 5 kHz, 20 kHz, OFF
Measurement Accuracy: ±5% of reading ±1 digit (at reference conditions 80 Hz / 159.2 Hz)
Display: Monochrome Transflective LCD with integrated LED backlighting
Display Refresh Rate: 100 ms
Data Memory Capacity: 1,000 data points (manual/auto save blocks)
Analog Output: AC output (1 V peak full scale), DC output (1 V full scale)
Digital Interface: USB Mini-B communication port
Audio Monitoring: Headphone output (for acoustic evaluation of bearing defects)
Power Requirement: 4 x IEC R6 (AA) Alkaline or Ni-MH batteries, or external AC adapter
Operational Runtime: Approximately 24 hours continuous operation with alkaline cells
Operating Temperature Range: -10 °C to +50 °C
Operating Humidity Range: 10% to 90% RH (non-condensing)
Ingress Protection: IPX1 equivalent
Dimensions: 171.5 mm (H) x 74 mm (W) x 25.5 mm (D)
Weight: Approx. 270 g (including batteries)
Standard Compliance: ISO 2954, ISO 10816 series, CE Mark, RoHS

SYSTEM ARCHITECTURE AND INTEGRATION
The internal architecture of the VM-82A features a discrete analog front-end that conditions high-impedance charge or voltage signals from piezoelectric accelerometers. The incoming signal is processed through switchable analog high-pass and low-pass filter networks to isolate specific frequency spectra before entering the analog-to-digital conversion stage. Digital filtering and integration algorithms convert base acceleration data into root-mean-square (RMS) velocity and peak-to-peak (EQ P-P) displacement metrics simultaneously.

The Technical Compatibility of the VM-82A allows flexible integration with broader plant monitoring infrastructure. The dedicated AC output delivers raw, unintegrated time-waveform data directly to multi-channel FFT analyzers, digital oscilloscopes, or automated data acquisition systems for spectrum analysis. The DC output provides an analog voltage proportional to the displayed metric, enabling direct connection to PLC analog input modules and chart recorders.

INDUSTRIAL APPLICATION SCENARIO
In critical continuous-process environments, such as petrochemical refining and power generation, mechanical failure in high-speed centrifugal feed pumps can result in catastrophic unscheduled downtime. The RION VM-82A solves this diagnostic challenge by allowing maintenance engineers to isolate specific failure modes at the machine train.

During routine route-based inspection, baseline velocity measurements (10 Hz to 1 kHz) are captured to evaluate overall unbalance and shaft misalignment according to ISO 10816-3 standards. Simultaneously, switching to high-frequency acceleration detection (1 kHz to 20 kHz) enables the identification of bearing outer-race micro-spalling and gear mesh anomalies long before thermal or acoustic symptoms emerge. The integrated headphone output permits real-time audio demodulation, allowing technicians to verify bearing distress acoustic signatures on-site.

PROCUREMENT AND LIFECYCLE MANAGEMENT
All units are sourced under strict supply-chain controls ensuring Original Engineering authenticity, complete with factory calibration records traceable to national metrology standards. Standard Lead Time varies based on destination and optional calibration protocol selections. To preserve measurement integrity and ensure reliable long-term service life, periodic recalibration and certified replacement accessories are supported across all global industrial distribution channels.

Key Attributes
Type: Vibration Meter
Accuracy: ±2 %
Place of origin: Japan
Customized support: Software Reengineering
Power: 500 Hz
Protection Class: IP65
Voltage: 1.5V
Brand name: RION
Application: Vibration Meter
Warranty: 1 Year
Power Supply: AC adapter or 4 AA batteries
Sensor Output Interface: AC&DC, USB, Printer
ACC (Acceleration): 1, 10, 100, 1 000 m/s2
DISP (Displacement): 0.1, 1, 10, 100 mm

Packaging and Delivery
Selling Units: Single item
Single package size: 36X28X22 cm
Single gross weight: 3.000 kg