990-05-50-01-01 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-05-50-01-01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 990-05-50-01-01 Vibration Transmitter is a two-wire, loop-powered device designed to accept input from a 3300 NSv Proximity Probe and extension cable, providing a precise 4–20 mA proportional output for peak-to-peak vibration measurement up to 5 mils (0–125 μm pp). With a 5.0-meter system length option, linear range of 0.25–1.65 mm (10–65 mils), and output impedance of 10 kΩ calibrated for a 10 MΩ load, the 990-05-50-01-01 enables integration into automated control systems for centrifugal air compressors, pumps, motors, and fans. It features a BNC Prox Out for dynamic vibration diagnostics, zero and span potentiometers for loop adjustment, and test input for rapid signal verification. Designed for challenging industrial environments, the 990-05-50-01-01 operates between -35°C and +85°C (-31°F to +185°F), supports maximum loop resistance of 1,000 Ω, and accommodates Proximitor leadwire lengths up to 3 meters (10 feet). DIN-rail or bulkhead mounting simplifies installation in compact areas, while potted construction and Not OK/Signal Defeat circuitry protect against high humidity, false alarms, and loose connections, ensuring reliable automated vibration monitoring.

Applications

Monitor Shaft Vibration on Centrifugal Air Compressors
Measures radial vibration using 3300 NSv Proximity Probe input into 990-05-50-01-01 Vibration Transmitter, with linear range 0.25–1.65 mm (10–65 mils) and maximum loop resistance of 1,000 Ω. Provides real-time 4–20 mA proportional signals for automated control systems, supporting shafts in tight clearance areas typical of centrifugal compressors.

Detect Vibration in Small Pumps and Motors
Uses 990-05-50-01-01 with 5-meter or 7-meter extension cables to monitor vibration on small rotating machinery. Integrates directly with control loops and supports dynamic vibration output via BNC Prox Out, ensuring accurate amplitude readings in tight installation spaces.

Provide Diagnostic Signals for Control Systems
990-05-50-01-01 supplies dynamic vibration and gap voltage signals for diagnostics and loop verification. Test input pins and output impedance of 10 kΩ allow predictive maintenance and verification of signal scaling under varying machine conditions.

Specifications

Competitive Advantage

Precise Measurement in Harsh Environments
990-05-50-01-01 operates from -35°C to +85°C (-31°F to +185°F) and is potted for up to 100% condensing humidity. Supports linear range 0.25–1.65 mm and loop resistance up to 1,000 Ω, ensuring reliable measurements under industrial conditions.

Fast Installation and Verification
DIN-rail or bulkhead mounting and zero/span potentiometers simplify installation. The test input pin on 990-05-50-01-01 allows quick verification of loop signal output without removing the transmitter.

Direct Integration with Automation Systems
Provides 4–20 mA proportional output, compatible with standard control systems. 990-05-50-01-01 enables real-time monitoring, alarm triggering, and automated control for machinery protection.

Compact Design for Limited Clearance Areas
Designed to work with 3300 NSv Proximity Probe in tight spaces typical of centrifugal air compressors and small motors, ensuring installation even in side-view or restricted areas.

Protection Against False Alarms
990-05-50-01-01 includes Not OK/Signal Defeat circuitry to prevent high outputs or false alarms caused by faulty probes or loose connections, minimizing unnecessary shutdowns and maintenance interventions.