990-05-XX-03-01 MOD:168251-01 Vibration Transmitter

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	990-05-XX-03-01 MOD:168251-01
Minimum Order Quantity:	1
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-XX-03-01 MOD:168251-01 Vibration Transmitter is a precision two-wire, loop-powered device designed for industrial automation and machinery protection systems. Engineered for OEM applications in centrifugal air compressors, small pumps, motors, and fans, it converts input from a 3300 NSv proximity probe and extension cable into a 4–20 mA proportional vibration signal. Supporting full-scale vibration measurements from 0 to 5 mils pp (0–125 μm pp) and system lengths up to 7 meters (23 feet), the transmitter provides reliable vibration amplitude readings for control and monitoring systems. Operating over a temperature range of -35°C to +85°C (-31°F to +185°F) and CSA Division 2 certified, it is suitable for challenging industrial environments. Features include integrated Proximitor sensor technology requiring no external modules, non-interacting zero and span potentiometers for easy loop adjustment, test input for rapid signal verification, and a Not OK/Signal Defeat circuit to prevent false alarms. DIN-rail clips or bulkhead screws simplify installation, while potted construction ensures humidity resistance up to 100% condensing. This transmitter delivers robust, accurate, and compact vibration measurement solutions for modern industrial automation.

Applications

Centrifugal Compressor Vibration Monitoring
Provides accurate vibration amplitude measurement to detect early-stage rotor imbalance, extending compressor lifetime and minimizing unscheduled downtime.

Pump and Motor Condition Monitoring
Enables predictive maintenance by tracking vibration levels of small pumps and motors, reducing bearing wear and energy consumption.

Fan Vibration Control Systems
Integrates with fan control systems to maintain safe operational vibration thresholds, ensuring reliable airflow and equipment efficiency.

Machinery Alarming and Safety Logic
Feeds a 4–20 mA proportional signal into automated control systems to trigger alarms or shutdown sequences when vibration exceeds pre-set limits.

Tight-Space Installation
Compact design allows mounting in areas with minimal clearance, making it ideal for OEM installations where space is constrained.

Specifications

Competitive Advantage

Integrated Proximitor Sensor
Eliminates the need for external units, reducing system complexity and installation time while ensuring reliable signal conditioning.

High Signal Accuracy and Stability
Maintains linear vibration measurements from 0.25 to 1.65 mm (10–65 mils), with low sensitivity to supply voltage variation, providing precise monitoring under fluctuating power conditions.

Enhanced Installation Flexibility
Supports DIN-rail or bulkhead mounting with potted construction, enabling deployment in high-humidity and industrial environments without additional protection.

Fault Prevention Technology
Not OK/Signal Defeat circuitry prevents false alarms due to probe malfunction or loose connections, increasing system reliability and reducing maintenance interventions.

Extended Range System Compatibility
Accepts 3300 NSv proximity probes with 5 m and 7 m extension cables, allowing integration into existing monitoring setups and OEM machinery designs with minimal modifications.