Bently Nevada 1900/65A (167699-02): Compact Single-Channel Machinery Protection Monitor

Product Description

The Bently Nevada 1900/65A (167699-02) is a compact, single-channel machinery protection monitor designed for real-time monitoring of critical parameters in small to medium-sized rotating equipment. As a key model in the Bently Nevada 1900 series, it specializes in vibration and position measurements using proximity probes, providing essential early warning of mechanical faults such as unbalance, misalignment, or bearing degradation. With a user-friendly design, rugged construction, and straightforward configuration, this monitor delivers reliable protection for industrial assets where space and simplicity are prioritized, ensuring minimal unplanned downtime and operational efficiency.

Product Parameters

Parameter	Specification
Input Type	1 channel, compatible with Bently Nevada 3300 series proximity probes
Vibration Measurement Range	±250 μm peak-to-peak
Position Measurement Range	0–1000 μm
Frequency Response	0.5 Hz to 10 kHz
Alarm Thresholds	Configurable alarm and danger levels with adjustable time delays (0.1–60 s)
Output Signal	4–20 mA analog output proportional to measured values
Accuracy	±1% of full scale

Product Specifications

Series

The 1900/65A (167699-02) belongs to the Bently Nevada 1900 series of machinery protection monitors. This series is renowned for its compact, cost-effective solutions tailored to small to medium-sized rotating equipment. The 1900 series includes single and multi-channel models, all designed for simplicity and reliability, with a focus on vibration and position monitoring. Unlike the modular 3500 series, the 1900 series prioritizes ease of use and space efficiency, making it ideal for applications where complex monitoring systems are unnecessary. All models in the series share rugged industrial designs and compatibility with Bently Nevada’s proven sensor technology, ensuring consistent performance across diverse industries.

Features

Single-Channel Focus

Dedicated to monitoring one critical measurement point, the monitor provides targeted protection for specific machinery components such as bearings or shafts, optimizing cost and space usage.

Easy Configuration

Front-panel potentiometers and LED indicators allow quick setup of alarm thresholds and visual status checks, reducing installation time and technical expertise requirements.

Reliable Alarm System

Configurable alarm and danger relays trigger timely alerts or safety actions (e.g., equipment shutdowns) when thresholds are exceeded, minimizing the risk of equipment damage.

Compact Design

With dimensions of 48 × 96 × 112 mm, it fits easily into crowded control panels or machinery enclosures, making it ideal for retrofitting into existing systems.

Industrial Durability

Rugged construction resists vibration, electromagnetic interference (EMI), and temperature fluctuations, ensuring reliable operation in harsh industrial environments.

Function

The primary function of the 1900/65A (167699-02) is to continuously monitor vibration and position of rotating machinery using proximity probes. It converts analog sensor signals into measurable values, processes the data to detect abnormal conditions, and compares measurements against user-defined alarm thresholds. When faults are detected, it activates relay outputs to trigger alarms or safety actions and transmits real-time data via a 4–20 mA analog output to external systems. This ensures operators receive immediate notifications of machinery issues, enabling proactive maintenance and preventing catastrophic failures.

Use

In industrial settings, the monitor is panel-mounted near the equipment it protects, such as pumps, motors, fans, or small turbines. It connects to proximity probes installed on bearing housings or shafts, continuously tracking vibration levels and shaft position. Operators use front-panel LEDs to check status at a glance, while the 4–20 mA output integrates with PLCs or SCADA systems for centralized monitoring. Maintenance teams leverage its data to schedule timely repairs, ensuring equipment reliability in applications where complex monitoring systems are unnecessary.

Application Fields

General Manufacturing

Monitors motors, pumps, and conveyor systems in factories, detecting early wear or misalignment to prevent production line disruptions.

Water and Wastewater

Protects pumps and blowers in treatment plants, ensuring reliable operation of equipment critical to water distribution and sewage processing.

Food and Beverage

Tracks vibration in mixers, agitators, and packaging machinery, maintaining production efficiency and compliance with hygiene standards.

HVAC Systems

Monitors fans, compressors, and chillers in commercial and industrial HVAC systems, extending equipment lifespan and reducing energy waste.

Small-Scale Power Generation

Provides basic protection for backup generators and small turbines, ensuring reliable power supply in remote or standby applications.

In summary, the Bently Nevada 1900/65A (167699-02) is a practical and reliable solution for protecting small to medium-sized rotating machinery. Its compact design, easy configuration, and robust performance make it an essential tool for industries seeking cost-effective machinery protection without compromising on reliability.