Manfred Weber
Metra Mess- und Frequenztechnik in Radebeul e.K.
Since 1954

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Building Vibration

Triaxial Vibration Monitor
VM40A VM40B
  • For structural vibration measurement to DIN 4150-3, BS7385,   SN 640312a, Circulaire du 23/07/86 and many other standards like Federal Transit Administration (FTA) standard.
  • Includes high-sensitivity triaxial accelerometer, electronics for signal conditioning, monitoring, recording and battery
  • Safe user guidance
  • Measurement of main frequency by continuous FFT
  • Time and event triggered recording for up to 100 000 measurements
  • VM40B with SMS notification at alarm events
  • Robust aluminum enclosure for autonomous field application
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Monitored quantities
Peak value (ppvpeak particle velocity)
Measuring ranges
Acceleration: 0.01 - 15 m/s²;
Velocity: 0.1 - 2400 mm/s at 1 Hz; 0.1 - 30 mm/s at 80 Hz (frequency dependent)
Frequency ranges (-3 dB)
0.8 - 100 Hz; 0.8 - 395 Hz; 5 - 150 Hz
Displayed data
3 peak values (X/Y/Z) or vector sum, main frequency, 50-line FFT spectrum
Alarm notification
Warning and alarm LEDs,
relay output, change-over, max. 100 VDC / 2 A
SMS alarm function
no GSM functions
Quad band GSM,
SMS notification at alarm events, including the measuring values X/Y/Z, date, time and device name
Interface
USB, PC software tool for conversion of stored data into csv format for Excel etc.
Power supply
Internal rechargeable battery, 5 to 15 days operation (depending on GSM usage), charging approx. 10 h with mains adapter, unlimited operation by external USB power supply

Data sheet (250 kB)
Instruction manual (3 MB)
The latest version of the software data export from the VM40 to a PC can be found on our download page.
Firmware update
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PC Vibration Measuring System VibroMetra


Building Vibration Measuring System
VM-STRUC
  • Measurement and evaluation of vibrations in buildings to DIN 4150-3 for the determination of their effects on structures
  • Convenient user guidance requires only short training
  • Comparison with limiting values to DIN 4150-3
  • Simple generation of reports
  • Detection of the main frequency
  • Recording of vibration events and real-time signals
  • External Messengers
  • Offline measurement
  • Available as kit: VM-STRUC Kit with accelerometer KS823B

Highslide JS
Please click for details

Required hardware components IEPE / USB interface M302 or M312, IEPE accelerometer
Measurands
Vibration velocity in mm/s, main frequency
Filters
Butterworth, 1 - 80 Hz and 1 - 315 Hz

Data sheet (400 kB)

Software description (online help)
The latest version of VibroMetra software can be found on our download page.
VibroMetra can be started in the Simulator mode for testing.
Add to memo list:
Building Vibration Measuring System
VM-PERS
  • Measurement and evaluation of vibrations in buildings to DIN 4150-2 for the determination of their effects on persons
  • Convenient user guidance requires only short training
  • Comparison with limiting values to DIN 4150-2
  • Simple generation of reports
  • Recording of vibration events and real-time signals
  • External Messengers
  • Offline measurement
  • Available as kit: VM-STRUC+PERS Kit with accelerometer KS823B


Highslide JS
Please click for details

Required hardware components IEPE / USB interface M302 or M312, IEPE accelerometer
Measurands
Vibration velocity in mm/s, main frequency

Data sheet (400 kB)

Software description (online help)
The latest version of VibroMetra software can be found on our download page.
VibroMetra can be started in the Simulator mode for testing.
Add to memo list: