Bently Nevada 1900/55-01-01-01-00 Fan Monitor

The Bently Nevada 1900/55-01-01-01-00 Fan Monitor is a dedicated vibration monitoring device designed for continuous condition monitoring of fans and blowers in industrial environments. It is part of the renowned Bently Nevada 1900 Series, specifically engineered for stand-alone protection of rotating machinery. This model delivers real-time vibration analysis to prevent unexpected failures, reduce downtime, and enhance machinery reliability.

The unit integrates with proximity probes or accelerometers to measure dynamic vibration levels and provides early detection of potential issues like unbalance, misalignment, looseness, and bearing degradation. It features configurable alarm thresholds, relay outputs for trip or warning conditions, and compatibility with Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC) for seamless integration into plant-wide monitoring systems.

Designed for harsh industrial conditions, the monitor withstands temperature extremes, vibration, and contamination such as dust and moisture. It is ideal for critical equipment where failure could result in costly shutdowns or safety hazards.

Product Specifications

Product Applications

The 1900/55-01-01-01-00 Fan Monitor is widely deployed across industries for reliable machinery protection and predictive maintenance. Common applications include:

• Industrial Fans and Blowers: Continuous monitoring of vibration and detecting early mechanical issues.

• Power Generation: Monitoring primary and auxiliary fans in thermal and nuclear plants.

• Oil & Gas Facilities: Protection of ventilation fans in refineries and offshore platforms.

• Petrochemical and Chemical Plants: Ensuring reliability of process-critical air handling equipment.

• Manufacturing Plants: Monitoring exhaust and cooling fans for uninterrupted production.

• HVAC Systems: Condition monitoring of high-capacity fans in commercial and industrial setups.

Product Advantages

• Dedicated Fan Monitoring: Optimized for fan and blower vibration analysis, ensuring accurate diagnostics.

• High Sensitivity: Detects minute changes in vibration patterns for early fault detection.

• Rugged Design: Built for operation in harsh industrial conditions, with IP55-rated enclosure.

• Seamless Integration: Outputs compatible with DCS and PLC systems for centralized monitoring.

• Flexible Configuration: Adjustable alarm thresholds and frequency filters for specific applications.

• Fail-Safe Design: Relay outputs for machine protection with alert and trip levels.

• Wide Compatibility: Supports multiple sensor types for versatile installation.

• Improved Reliability: Reduces unplanned downtime and maintenance costs through predictive maintenance.

Frequently Asked Questions (FAQ)

1. What type of sensors can be connected to this monitor?

   It supports proximity probes (API 670 compliant) and accelerometers.

2. What is the number of input channels in this model?

   The 1900/55-01-01-01-00 supports two dynamic vibration input channels.

3. What is the frequency range it can measure?

   The monitor has a frequency response of 10 Hz to 10 kHz.

4. Can it provide both alert and danger alarms?

   Yes, it has separate SPDT relays for alert and danger conditions on each channel.

5. Does the monitor offer an analog output signal?

   Yes, it provides a 4–20 mA analog signal per channel for continuous monitoring.

6. Is there a digital communication option for integration?

   Yes, Modbus communication is available for integration with control systems.

7. How are alarm thresholds configured?

   Alarm thresholds can be set via local configuration for alert and danger limits.

8. Does this monitor support integration into PLC or DCS systems?

   Yes, it supports both through analog outputs and optional Modbus connectivity.

9. What environmental protection does the enclosure provide?

   It has an IP55-rated enclosure for protection against dust and moisture.

10. Is it suitable for continuous online monitoring?

    Yes, the 1900/55 series is specifically designed for continuous online monitoring.