The VS900-RSC-34dB is a piezoelectric AE-sensor with integrated Vallen Smart Line™ preamplifier. Its frequency response is characterized by two peaks at 190 kHz and 350 kHz with accompanying anti-resonances at 200 kHz and 400 kHz. Benefits of the VS900-RSC-34dB are a high sensitivity over a broad frequency range with compromises regarding the flatness of response. It combines a good response in the standard frequency – and high frequency range. The integrated preamplifier has 34 dB gain and supports pulse through for automatic sensor testing. The VS900-RSC-34dB supports the Vallen Smart Line™ protocol. Vallen Smart Line™ products are supported since Release R2018.0726.

Vallen Smart Line™ features: sensor type, serial number and gain are automatically identified and read by the AE system.

Technical Specification

Frequency Range (fPeak) [kHz] 100 to 900 (350)
Power Supply [VDC] 28 ± 2
Integrated Preamplifier Yes, Vallen Smart Line™
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] 28.6 x 31.5
Weight [g] 80
Case Material Stainless Steel (1.4571/ 1.4404)
Wear Plate Ceramics
Connector BNC
Ingress Protection Rating (IP) IP40
Shield Cross-Talk [dB] < -80
Noise (max. 1/s) [dBAE Peak] 26.9 @ 95 – 850 kHz
Noise (max. 1/s) [µVRMS] 4.5 @ 95 – 850 kHz
Pulse Through Yes