RION VM-83 Vibration Meters

Key Features

Connectivity for various kinds of accelerometers enables a wide range of vibration measurements
Comparator function with level evaluation output
Versatile display characteristics including rms, equivalent peak, equivalent peak-to-peak, maximum value hold, and peak hold
AC and DC output connectors
Serial interface for enhanced connectivity

Description
Additional information

SPECIFICATIONS RION VM-83: VIBRATION METERS

Input Section

Accelerometer input: For piezoelectric accelerometers; Maximum input charge 30 000 pC
Preamplifier input 1: For connection of piezoelectric accelerometers via preamplifier VP-26A
Preamplifier input 2: For connection of piezoelectric accelerometers with integrated preamplifier; voltage and current supply: 18 V, 2 mA

Measurement modes

Acceleration (ACC): m/s2
Velocity (VEL): mm/s
Displacement (DISP): mm

Measurement range

+ Piezoelectric: Accelerometer sensitivity 1.00 to 9.99 pC/ (m/s2)
Acceleration: 0.3, 1, 3, 10, 30, 100, 300, 1 000
Velocity: 3, 10, 30, 100, 300, 1 000
Displacement: 1, 3, 10, 30, 100, 300, 1 000 (HPF 1 Hz)
Displacement: 0.3, 1, 3, 10, 30, 100, 300, 1 000 (HPF 3 Hz)
Displacement: 0.03, 0.1, 0.3, 1, 3, 10, 30, 100 (HPF 10 Hz or higher)
For accelerometer sensitivity 0.030 to 0.999 pC/ (m/s2), multiply above figures by 10
For accelerometer sensitivity 10.0 to 99.9 pC/ (m/s2), multiply above figures by 1/10

Vibration frequency range: Piezoelectric

Acceleration: 1 Hz to 20 kHz ± 5 %
Velocity: 1 Hz to 3 Hz ± 10 %, 3 Hz to 3 kHz ± 5 %
Displacement: 1 Hz to 3 Hz ± 20 %, 3 Hz to 500 Hz ± 10 %

Filters: Piezoelectric

High-pass filter (HPF): 1, 3, 10, 20, 50 Hz (−10 % point, 3rd-order)

Low-pass filter (LPF): 100, 300, 1 k, 3 k, 10 kHz (−10 % point, 3rd-order)

Display characteristics

RMS: True RMS
Equivalent peak (EQ PEAK): RMS× 2
Equivalent peak-to-peak (EQ P-P): RMS peak × 2
Maximum value hold: Holds maximum value in selected mode at selected display characteristics
Peak hold: Holds peak of acceleration waveform

Comparator function: Based on level evaluation

Comparator level setting: In steps of 2 % of full-scale range

Delay time setting: 0 to 9 s in 1-s steps
Auto reset time: 0 to 90 s in 1-s steps, ON, OFF
Comparator output: Open-collector output (maximum applied voltage 24 V, maximum drive current 25 mA); Buzzer output (on/off selectable), LCD flashing

LCD functions Rion VM-83

Bar graph: Linear scale, value sampled every 100 ms
Measurement value: 4-digit numeric display (average of 20 instantaneous value samples taken at 100 ms intervals, display updated every 2 seconds)
Measurement mode: Display characteristics, filter, battery capacity (3-stage indication)

Calibration

Accelerometer sensitivity: 0.030 to 0.999 pC/ (m/s2), 1.00 to 9.99 pC/ (m/s2), 10.0 to 99.9 pC/ (m/s2)
Calibration output: Signal for external equipment calibration
AC: Piezoelectric: 80 Hz ± 2 %, 2 V ± 2 %
DC: 2V±2%

Outputs

+ AC output: Range full-scale 2 V, output impedance 600 Ω, BNC connector
Output voltage accuracy: Piezoelectric (unit electrical characteristics, 80 Hz)
Acceleration: Range full-scale ± 2 %
Velocity: Range full-scale ± 3%
Displacement: Range full-scale ± 5%
+ DC output: Range full-scale 2 V, output impedance 600 Ω, BNC connector
Output voltage accuracy: Piezoelectric (unit electrical characteristics, 80 Hz)
Acceleration: Range full-scale ± 2 %
Velocity: Range full-scale ± 3%
Displacement: Range full-scale ± 5%

Interface

Serial interface: For data output and remote control of VM-83

Power requirements: IEC R14 (size D) batteries × 4, or AC adapter (NC-98E, option)

Current consumption: 190 mA (varies depending on measurement conditions)
Continuous operation on batteries: Approx. 20 hours using alkaline batteries
Ambient conditions for use: −10 to 50 °C, 20 to 90 % RH (no condensation)
Dimensions and weight: 171 (H) × 120 (W) × 234 (D) mm, approx. 1.8 kg
Supplied accessories: Storage case × 1; IEC R14 (size D) batteries × 4 (manganese)
Features Rion VM-83

– Connectivity for various kinds of accelerometers enables a wide range of vibration measurements
– Comparator function with level evaluation output
– Versatile display characteristics including rms, equivalent peak, equivalent peak-to-peak, maximum value hold, and peak hold
– AC and DC output connectors
– Serial interface for enhanced connectivity
– Data printout capability via serial interface