The Bently Nevada 991-25-50-03-05 thrust transmitter is a loop‑powered, 2‑wire device engineered for OEMs requiring reliable axial displacement monitoring in compressors, pumps, motors, and fans. As part of the 990 Vibration Transmitter family, it integrates seamlessly with 3300 NSv proximity probes, converting probe signals into a standard 4–20 mA output for direct connection to control systems.
Key Features
Loop‑powered 2‑wire transmitter with 4–20 mA output
Integrated Proximitor sensor eliminates need for external units
Provides dynamic vibration and gap voltage outputs via coaxial connector
Non‑interacting zero/span adjustments for simplified calibration
Test input pin for quick loop verification
Power‑up inhibit circuit prevents transient signal errors
Not OK/Signal Defeat circuit avoids false alarms during probe faults
Potted construction withstands 100% condensing humidity
DIN‑rail or bulkhead mounting options for installation flexibility
