The PCE-VM 31 Human Vibration Analyzer is designed for measuring human vibration at the workplace. The Vibration Analyzer can calculate hand-arm vibration measurements according to ISO 5349 and whole-body vibration measurements according to ISO 2631. In addition to human vibration measurements, the Vibration Analyzer can measure the vibrations of machines. The Vibration Analyzer also supports TEDS, which means that it can detect and identify TEDS-capable sensors automatically. Overall, the device comes with 4 independent measuring channels. The measured data can be displayed as interval, running or maximum RMS (MTVV), as well as estimated vibration dose value (eVDV), vector sum, peak, and maximum peak. The acceleration can also be displayed as FTT with up to 125 lines. The internal flash memory of the Vibration Analyzer can store up to 10,000 measurements or up to 1,000 FTTs, each with date, time, and a comment. The measured data can also be transferred to a PC via the USB 2.0 interface.

Human Vibration Analyzer without Sensors VM 31

  • Measuring range Sensor with 1 mV/(m/s²) Sensor with 10 mV/(m/s²)
    Acceleration 1100 m/s² / 3609 ft/s² 110 m/s² / 361 ft/s²
    Velocity 100 mm/s ... 10,000 mm/s
    4.0 in/s ... 394.0 in/s (1 kHz/1 Hz)
    10 mm/s ... 1,000 mm/s
    0.4 in/s ... 39.4 in/s (1 kHz/1 Hz)
    Displacement (Peak) 250 µm ... 15,000 µm
    0.01 in ... 0.6 in (5 Hz/250 Hz)
    25 µm ... 1,500 µm
    0.001 in ... 0.06 in (5 Hz/250 Hz)

    Display resolution (1 / 10 mV/(m/s²))
    Acceleration 0.01 m/s² / 0.4 in/s²
    Velocity 0.1 mm/s / 0.004 in/s
    Displacement 1 µm / 4 x 10-5 in

    Linearity range

    > 75 dB for ±6 % error
    Noise < 0.003 m/s² / 0.12 in/s²
    Inputs 4 Low-Power-IEPE inputs; 0.7 mA / 17 V; TEDS support, IEEE1451.4, Template 25
    Sensor sensibility 0.8 - 120 mV/(m/s²)
    Display units human vibration
    (acceleration)
    Interval RMS
    vector sum
    max. running RMS (MTVV) 
    vibration dose value (VDV)
    Display units acceleration, velocity, displacement running RMS
    maximum RMS
    vector sum
    peak value
    maximum peak value
    Filters Weighting filters: Wb, Wc, Wd, Wh, Wj, Wk, Wm
    Unweighted: 6.3 - 1259 Hz (H/A) / 0.4 - 100 Hz (G/K)
    Acceleration: 0.1 - 2000 Hz / 1 - 1000 Hz
    Velocity: 1 - 100 Hz / 2 - 1000 Hz / 10 - 1000 Hz
    Displacement: 5 - 250 Hz
    Frequency analysis (FFT) 125 lines for X/Y/Z, peak spectrum of acceleration, 3 - 240 / 6 - 480 / 12 - 960 / 24 - 1920 Hz
    Data memory Flash, 10,000 measurements, 1,000 FFts, each with date, time and comment
    Display OLED, 128 x 160 pixels, coloured
    Interface USB 2.0, full speed, CDC-mode (virtual COM port), via cable VM2x-USB
    Batteries 3 x 1.5 V AAA batteries or accumulators (LR03 or HR03)
    Environmental conditions -20° C ... +60° C / -4° F ... +140° F
    < 95 % RH
    Approx. dimensions 125 mm x 65 mm x 27 mm 
    4.9 in x 2.6 in x 1.1 in (without connectors)
    Approx. weight 140 g / 0.31 lbs

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