990-04-50-02-00 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-04-50-02-00
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 990-04-50-02-00 Vibration Transmitter converts signals from a 3300 NSv Proximity Probe into a precise 4–20 mA output for automated machinery control. Designed for centrifugal air compressors, small pumps, motors, and fans, the 990-04-50-02-00 Vibration Transmitter accepts input from probes with a 0.25–1.65 mm (10–65 mils) linear range and up to 7.0 m (23 ft) system length. Operating from −35°C to +85°C, the 990-04-50-02-00 Vibration Transmitter delivers loop-powered performance (+12 to +35 Vdc) with 23 mA current draw and 10 kΩ output impedance, supporting dynamic vibration and gap voltage diagnostics. Non-interacting zero and span potentiometers simplify loop adjustment, while the Not OK/Signal Defeat circuit protects the control system from false alarms due to probe faults. Bulkhead screw mounting or optional DIN-rail clips enable rapid installation in tight automated spaces. The 990-04-50-02-00 Vibration Transmitter integrates a Proximitor Sensor, providing both Prox Out BNC and COM terminals for signal monitoring, making it ideal for OEMs seeking reliable vibration measurement and automated protection in compact industrial equipment.

Applications

Radial Vibration Measurement on Small Shafts
The 990-04-50-02-00 Vibration Transmitter measures radial vibration on shafts down to 51 mm (2 in) diameter, using 3300 NSv Proximity Probes with 0.25–1.65 mm linear range. This enables precise monitoring in centrifugal compressors and pumps.

Axial (Thrust) Position Monitoring
Using 990-04-50-02-00 Vibration Transmitter, operators can track axial displacement on flat targets smaller than 15 mm (0.6 in), integrating this data into automated control systems for fluid-film bearings.

Tachometer and Zero-Speed Detection
The 990-04-50-02-00 Vibration Transmitter supports high-speed machinery by providing 4–20 mA output signals for speed detection, enabling automated machinery protection and alarm functions.

Specifications

Competitive Advantage

High Precision Signal Conditioning
The 990-04-50-02-00 Vibration Transmitter converts raw 3300 NSv Proximity Probe signals into calibrated 4–20 mA outputs, with 10 kΩ output impedance and 0.25–1.65 mm linear range, minimizing measurement errors.

Compact and Flexible Installation
DIN-rail or bulkhead mounting enables the 990-04-50-02-00 Vibration Transmitter to fit tight automation cabinets or OEM machinery setups, saving space without sacrificing performance.

Fault Detection Protection
The Not OK/Signal Defeat circuit of 990-04-50-02-00 Vibration Transmitter prevents false alarms or control errors due to loose or damaged 3300 NSv Proximity Probes, ensuring reliable automated operation.

Loop-Powered Operation
Operating at +12 to +35 Vdc with 23 mA current draw, the 990-04-50-02-00 Vibration Transmitter integrates seamlessly into two-wire automation loops, simplifying wiring and reducing system complexity.