The VS375-WIC is a piezoelectric AE sensor with integrated preamplifier. Its frequency response is characterized by a peak at 375 kHz where it exhibits a resonance. The VS375-WIC is rated watertight up to 60 bar of water pressure. Its frequency response bridges the gap between standard frequency range and high frequency range. The VS375-WIC is suited for wet environments or for on-site monitoring of underwater installations. The integrated preamplifier has 34 dB gain and supports pulse through for automatic sensor testing.

Technical Specification

Frequency Range (fPeak) [kHz] 250 to 700 (375)
Power Supply [VDC] 28 ± 2
Integrated Preamplifier Yes
Preamplier Gain [dB] 34
Operating Temperature [°C] -40 to +85
Vibration @ Sinus Sweep 2 Oct/Min, 5 to 50 Hz, 20 g
Size (D x H) [mm] 32.0 x 48.0
Weight [g] 181
Case Material Stainless Steel (1.4571/ 1.4404)
Wear Plate Ceramics
Connector LEMO 03 Series
Ingress Protection Rating (IP) IP68, max. 60 bar (with connected cable)
Shield Cross-Talk [dB] < -80
Noise (max. 1/s) [dBAE Peak] 28.0 @ 95 – 850 kHz
Noise (max. 1/s) [µVRMS] 4.5 @ 95 – 850 kHz
Pulse Through Yes