The Schenck VS-069 is a passive electrodynamic (self-generating) velocity sensor designed for measuring absolute vertical vibration on rotating machinery. It outputs 100 mV/mm/s with 4 kΩ internal impedance across a 10-2000 Hz frequency range (extendable to 1 Hz with secondary instrument compensation). The hermetically sealed stainless steel housing (Ø38×75mm, IP66) with 5m PTFE shielded cable withstands -40°C to +80°C. No external power supply is needed. Applications include bearing vibration monitoring (TSI) on steam/gas/hydro turbines, fan/blower/compressor/pump bearing housing vibration, gearbox monitoring, and machine condition monitoring in power generation, oil & gas, and process industries.
**Q: Does the VS-069 require external power?**
A: No, it is a passive electrodynamic sensor that generates its own signal voltage from vibration, requiring no external power supply.
**Q: What is the difference between VS-069 and VS-068?**
A: The VS-069 is the vertical measurement variant; the VS-068 is the horizontal measurement variant. Both share identical electrical specifications.
**Q: Can the cable be extended beyond 5 meters?**
A: Yes, using a junction box the cable can be extended up to 200 meters without signal degradation.
