Collection: Bently Nevada 990 Vibration Transmitter | 4-20mA Output

Bently Nevada 990 Vibration Transmitter

The Bently Nevada 990 Vibration Transmitter delivers a simplified vibration monitoring solution for OEMs of centrifugal air compressors, pumps, motors and fans. This two-wire, loop-powered device accepts input from a 3300 NSv proximity probe and converts the signal into a standard 4-20 mA output for direct connection to machinery control systems.

Key Features

• Integrated Proximitor functionality eliminates need for external units

• Diagnostic outputs via PROX OUT/COM terminals and coaxial connector

• Non-interacting zero and span potentiometers for easy calibration

• Test Input pin enables quick loop verification

• Not OK/Signal Defeat circuit prevents false alarms

• Flexible mounting with DIN-rail clips or bulkhead screws

Technical Specifications

• Input: 3300 NSv proximity probe (5m/7m system lengths)

• Output: 4-20 mA proportional to vibration amplitude

• Power: Two-wire loop powered

• Mounting: DIN-rail or bulkhead mounting

Applications

Ideal for OEMs seeking reliable vibration monitoring of:

• Centrifugal air compressors

• Small pumps and motors

• Industrial fans

• Other rotating machinery

The 990 transmitter provides essential machinery protection through continuous vibration monitoring, enabling immediate response to abnormal conditions and helping prevent equipment damage.