Vibration meter VM31-MMF
- Four independent measuring channels
- Weighting filters to ISO 8041 Wh for hand-arm vibration and Wb, Wc, Wd, Wj, Wk, Wm for whole-body vibration
- Display of interval and running RMS, maximum RMS (MTVV), interval RMS, vibration dose value (VDV), vector sum, peak and maximum peak
- Measurement of vibration acceleration, velocity and displacement
- FFT of acceleration with 125 lines
- TEDS sensor detection
- Memory for measurements and FFTs with USB interface
- Excel macro included for data transfer and calculation of daily exposure A(8)
- Clear user guidance with colored OLED
- Very compact design
- 10 hours operation with 3 Micro (AAA) batteries
- Available as hand-arm kit and whole-body kit including suitable sensors and accessories
Specifications
| Inputs | 4 low-power IEPE inputs; 1 mA / 17 V; TEDS support, IEEE1451.4, Template 25 |
| Sensors | Low-power IEPE, sensitivity 0.8 – 120 mV/ms-2 |
| Display units Human vibration (acceleration)
Acceleration, velocity and displacement |
Interval RMS, vector sum, max. running RMS (MTVV), vibration dose value (VDV)
running RMS, maximum RMS, vecor sum, peak value, maximum peak value |
| Measuring ranges (with sensor 1 mV/ms-2) | Acceleration: 800 m/s²; velocity: 100 – 10000 mm/s; displacement: 250 – 15000 µm |
| Linearity range | > 75 dB for ± 6 % error |
| Noise | < 0,003 m/s² |
| Filters | Weighting filters Wb, Wc, Wd, Wh, Wj, Wk, Wm, Wp, unweighted: 6.3 – 1259 Hz (H/A) / 0.4 – 100 Hz (W/B) Acceleration: 0.2 – 1500Hz / 1 – 1000 Hz; velocity: 1 – 100 Hz / 2 – 1000 Hz / 10 – 1000 Hz; displacement: 5 – 250 Hz |
| Daily exposure A(8) | A(8) calculation for several activities and test persons by Excel macro vm31.xlsm Download from http://www.mmf.de/software_download.htm#vm31 |
| 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, 1000 FFTs, each with date, time and comment |
| Display | OLED, 128 x 160 pixels, colored |
| USB interface | USB 2.0, full-speed, CDC mode (virtual COM port), via cable VM2x-USB |
| Batteries | 3 accumulators HR03 or Alkaline cells LR03 (size AAA), 10 – 14 hours operation |
| Temperature range | -20 .. 60 °C, < 95 %relative humidity, no condensation |
| Dimensions without connectors; weight | 125 mm x 65 mm x 27 mm; 140 g |
| Standard accessories | USB cable VM2x-USB, batteries, instruction manual, plastic carrying case |
| Hand-Arm Measuring Kit VM31-HA | VM31, triaxial accelerometer KS903B10, sensor cable 3 m, handle adapter 141 and 143, USB cable, batteries, instruction manual |
| Whole-Body Measuring Kit VM31-WB | VM31, triaxial seat accelerometer KS963B100-S, USB cable, batteries, instruction manual |
| Hand-Arm and Whole-Body Measuring Kit VM31-HAWB | VM31, triaxial accelerometer KS903B10, sensor cable 3 m, triaxial seat accelerometer KS963B100-S, handle adapter 141 and 143, USB cable, batteries, instruction manua |
| Machine / Structural vibration Kit VM31-M | VM31, triaxial accelerometer KS903B100, sensor cable 3 m, magnetic base 308, sensor probe 001, USB cable, batteries, instruction manual |
Q&A
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