Bently Nevada 1900/65A General Purpose Equipment Monitor
1. Overview
The Bently Nevada 1900/65A is a versatile machinery monitoring module designed for vibration, speed, and position measurement in industrial rotating equipment.
It serves as a standalone monitor or integrates into larger condition monitoring systems (e.g., Bently Nevada 3500/System 1).
2. Key Functions & Features
Multi-Parameter Monitoring:
Measures radial vibration (via proximity probes), axial thrust position, and rotational speed (RPM) with high accuracy (±1% FS).
Supports eddy-current probes (e.g., 3300/7200 series) and velocity/acceleration sensors for flexible installation.
Programmable Alarms & Relays:
Configurable Alert/Danger setpoints with SPDT relay outputs for machinery protection (trip/shutdown logic).
Includes sensor fault detection and signal validation to prevent false alarms.
Signal Conditioning & Outputs:
Provides 4–20mA analog outputs (scalable to engineering units) for DCS/PLC integration.
Optional Modbus RTU or HART protocol support for digital communication.
Robust Industrial Design:
Wide operating range (-40°C to +85°C) with 20g vibration resistance (per IEC 60068).
Complies with API 670 (Machinery Protection Systems) and ATEX/IECEx for hazardous areas.
3. Typical Applications
Pumps & Motors: Bearing health monitoring in critical centrifugal pumps.
Fans & Blowers: Vibration detection in HVAC/industrial fan systems.
General Rotating Machinery: Speed and position monitoring in non-critical assets.
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