SV 84 Building / Ground Vibration Accelerometer is a hermeticaly sealed triaxial piezoelectric accelerometer designed to monitor the vibration in harsh industrial environment. Signal ground is isolated from the mounting surface and outer case to prevent ground loops. Annular shear mode design prevents from thermal transient and from spurious signal from high transverse vibrations. Low noise electronic and a temperature compensated design gives the accurate result over the complete temperature range. The glass seal hermetic connector protects the piezoelectric disc and the electronic from harmful environmental influences, significantly increasing their reliability and lifetime.
SV 84 is offered separately or as a part of the SV 207B kit that includes metal mounting base (shown on a photo).
Features:
•Piezoelectic accelerometer dedicated to building/ground structure vibration measurements
•Compatible with SVAN 958A and SV 106
•Hermetically sealed
SV 84 Building/Ground Vibration Acelerometer Specification
Performance:
Number of axis: 3
Sensitivity (± 10 %): 100 mV/(ms-2) ~ 1000 mV/g
Measurement range: 0.0005 ms-2 rmS ÷ 50 ms-2 Peak
Frequency response (± 3 db): 0.2 Hz ÷ 3 700 Hz
Linearity: ± 1 %
Residual noise (1 Hz, 24°C): 2.0 μg rmS
Residual noise (1 kHz, 24°C): 6.3 μg rmS
Transverse response sensitivity (20 Hz, 50 m/s2): 100 mΩ
Dual case isolationinternal Faraday shield (suitable for permanent installation
Supply current: 2 mA ÷ 10 mA
Supply voltage: 22 V ÷ 28 V
Bias voltage: +10 VdC