1900/27-03 Bently Nevada Vibration Monitor Peak Velocity Unit

Product Overview

The Bently Nevada 1900/27-03 serves as a dedicated, standalone vibration monitor designed for the continuous protection of essential rotating assets such as pumps, fans, and motors. It accepts signals from acceleration sensors and converts them into peak velocity units to track mechanical health in real-time. We supply this unit as 100% brand new and original in factory-sealed packaging, ensuring field-ready performance for your machinery protection systems.

Technical Specifications

Engineering Advantages

Precision Signal Conditioning

The 1900/27-03 eliminates the need for external signal converters. It directly integrates raw acceleration data and processes it into peak velocity, providing a more accurate representation of machine stress and structural vibration. This internal conditioning ensures high signal-to-noise ratios even in electrically "dirty" industrial environments.

Rapid Fault Response via Dual Relays

Two independent relay outputs (Alert and Danger) allow for immediate automated intervention. You can wire these contacts directly into an emergency shutdown circuit or a PLC. This hardware-level protection operates faster than software-based polling, preventing catastrophic failure during sudden mechanical shifts.

Flexible "Small Footprint" Integration

With a depth of only 71.1 mm, this module fits into shallow control cabinets where larger rack-based systems fail. The dual-mounting design supports both standardized 35mm DIN rails for quick installation and panel cutouts for front-facing operator visibility.

High-Contrast Local Diagnostics

The integrated display provides immediate field diagnostics without requiring a laptop or specialized software. Operators can verify vibration levels and alarm status at the machine site, significantly reducing troubleshooting time during routine walk-downs.

FAQs

Which specific Bently Nevada sensors work with the 1900/27-03?

This module specifically supports the Trendmaster 2000 series accelerometers. It provides the necessary bias power for the sensor and expects a standard acceleration signal, which it then scales to velocity.

Can I configure the alarm setpoints manually?

Yes. You adjust the Alert and Danger setpoints to match your specific machine's vibration baseline. This customization ensures the module ignores normal operational transients while remaining sensitive to genuine mechanical degradation.

What is the advantage of measuring in Peak Velocity instead of Acceleration?

Velocity measurement correlates more closely with the destructive energy of vibration in most medium-speed industrial machinery (10Hz to 1000Hz). By tracking peak velocity, the 1900/27-03 provides a clearer indicator of bearing wear and structural fatigue.

How does the 1900/27-03 handle power interruptions?

The module operates on a stable 24VDC supply. Upon power-up, it performs an internal self-test. If the sensor signal is missing or "Not OK," the module activates a fault status to prevent false "Safe" readings, ensuring your protection loop remains integral.