990-04-XX-01-00 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-04-XX-01-00
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-XX-01-00 Vibration Transmitter from Bently Nevada™ converts input from a 3300 NSv Proximity Probe into a 4 to 20 mA proportional vibration signal for machinery control systems. The 990-04-XX-01-00 Vibration Transmitter supports a full-scale range of 0–4 mils pp (0–100 μm pp) and conditions signals over a linear range of 0.25 to 1.65 mm (10–65 mils) via a 10 kΩ output impedance calibrated for a 10 MΩ load. Operating from -35°C to +85°C and storing up to -52°C to +100°C, the 990-04-XX-01-00 Vibration Transmitter functions reliably in industrial automation environments.

Loop-powered with +12 to +35 Vdc input and 23 mA typical current draw, the 990-04-XX-01-00 Vibration Transmitter integrates non-isolated PROX OUT and COM terminals, a coaxial output for diagnostic signals, and test input pins for quick loop verification. DIN rail or bulkhead mounting options allow flexible installation in small spaces, while potted construction permits operation in up to 100% condensing humidity. The 990-04-XX-01-00 Vibration Transmitter provides real-time, proportional vibration amplitude data, enabling OEMs and automation systems to monitor centrifugal air compressors, small pumps, motors, and fans efficiently for machinery protection and process control applications.

Applications

Centrifugal Air Compressors: This is the primary application of this transmitter, specifically designed for monitoring shaft vibration in small or compact centrifugal compressors.

Small Rotating Equipment Monitoring: Widely used in pump sets, small to medium-sized motors, and fans within plants, providing an economical and simplified continuous vibration monitoring solution for these devices.

OEM System Integration: Due to its integrated Proximitor preamplifier functionality, no additional monitoring rack is required, making it ideal for equipment manufacturers to install directly on machine control panels as standard equipment.

Process Control Integration: In refineries, chemical plants, and power plants, it is used to directly transmit machine health data to PLCs (Programmable Logic Controllers) or DCSs (Distributed Control Systems) to achieve automated alarms and logic protection.

Specifications

Competitive Advantage

Provide Direct Proportional Vibration Signals
The 990-04-XX-01-00 Vibration Transmitter converts 3300 NSv Proximity Probe input to a 4–20 mA signal, delivering real-time vibration data for automated process control and machinery protection systems.

Enable Quick Loop Verification
With a test input pin and non-isolated PROX OUT and COM terminals, the 990-04-XX-01-00 Vibration Transmitter allows operators to verify signal loops quickly, reducing commissioning and troubleshooting time.

Operate in Harsh Industrial Environments
The 990-04-XX-01-00 Vibration Transmitter withstands temperatures from -35°C to +85°C, loop resistance up to 1,000 Ω, and 100% condensing humidity, supporting continuous automated monitoring under industrial conditions.

Flexible Mounting for OEM Applications
DIN rail or bulkhead mounting options and a compact footprint allow the 990-04-XX-01-00 Vibration Transmitter to be installed in small machinery spaces typical of centrifugal air compressors and fans.