Building Vibration Measurement MMF VM-STRUC

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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 (IP67)

Monitored quantities	Peak value of vibration velocity or acceleration
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 indication	LEDs for warning/alarm, super bright relay output, n.o./n.c, max. 100 VDC / 2 A
SMS alarm function	External cellular modem 4G (LTE B3, B8, B20); 2G (E-GSM-900, DCS-1800) SMS sent at alarm condition, includes X/Y/Z values, date, time and device name SMS polling of alarm number and highest alarm by calling the VM40
Interface	USB, PC software for archiving and report generation included
Power supply	Internal battery, 5 to 15 days (depending on mobile communication), charge duration approx. 10 h with mains plug adapter unlimited operation with connected USB supply voltage