Product Overview

The Bently Nevada 1900/27-02-00 is a robust, single-channel Vibration Monitor designed to provide continuous monitoring and mechanical protection for general-purpose and critical machinery. As part of the renowned 1900 series, this device acts as an independent guardian for rotating equipment, accepting input from compatible Trendmaster® 2000 accelerometers. The 1900/27-02-00 conditions the sensor signal to measure peak velocity, providing a reliable indication of machine health and triggering alarm relays if vibration levels exceed user-defined thresholds.

Engineered for versatility, the Bently Nevada 1900/27-02-00 bridges the gap between simple local indication and complex distributed control systems. It features a built-in 4-20mA output, allowing it to transmit real-time vibration data to a DCS or PLC for trend analysis. Whether used as a standalone unit or integrated into a larger Trendmaster 2000 system via an optional interface module, the 1900/27-02-00 ensures that vital assets like fans, pumps, and compressors are protected from the damaging effects of excessive vibration.

Main Features and Advantages

Independent Machinery Protection: The Bently Nevada 1900/27-02-00 is designed to function as a standalone safety device. It does not require a complex rack system or external computer to operate. This independence makes the 1900/27-02-00 a cost-effective solution for protecting individual machines. It continuously compares the incoming vibration signal against preset alarm limits and activates relay contacts to trip the machine if dangerous conditions are detected, preventing catastrophic failure.

Seamless DCS Integration: A key advantage of the Bently Nevada 1900/27-02-00 is its integrated 4-20mA analog output. This feature allows plant operators to monitor the “health” of the machine directly from the control room. By feeding vibration data into the plant’s Distributed Control System (DCS), the 1900/27-02-00 enables predictive maintenance strategies, allowing engineers to spot trends and schedule maintenance before a failure occurs.

Local Indication and Status: The Bently Nevada 1900/27-02-00 features a clear, local display and LED indicators (OK, Alarm, Danger). This provides immediate visual feedback for technicians performing rounds or troubleshooting on the factory floor. The “OK” LED confirms that the sensor and wiring are intact, while the Alarm and Danger LEDs provide instant notification of machine status, making the 1900/27-02-00 a user-friendly tool for maintenance teams.

Application Field

The Bently Nevada 1900/27-02-00 is widely used in industries requiring reliable protection for auxiliary machinery. In power generation plants, it is frequently installed on induced draft fans and boiler feed pumps. In these applications, the 1900/27-02-00 monitors the vibration velocity to detect bearing wear or imbalance, ensuring that critical support equipment remains operational to keep the plant running.

In the petrochemical and water treatment industries, the monitor is essential for protecting large centrifugal pumps and compressors. These machines often operate in harsh environments where reliability is paramount. The Bently Nevada 1900/27-02-00 provides the necessary ruggedness and accuracy to function in these conditions. Additionally, it can be used in conjunction with the Trendmaster 2000 system to monitor multiple points on a single large machine, providing a comprehensive protection net for expensive assets.