Description

The PR9268/201-100 is a high-precision electrodynamic velocity sensor within the Emerson Epro product line. This absolute vibration transducer measures mechanical oscillations in heavy rotating machinery. It primarily monitors bearing housing vibrations in steam and gas turbines. Unlike proximity probes, this sensor provides absolute velocity data by utilizing a moving coil principle. Consequently, it effectively captures low to medium frequency vibrations. This data remains essential for assessing the overall mechanical health of critical assets.

Mechanical Design and Durability

Emerson builds the PR9268 series to survive the most punishing industrial environments. The rugged outer casing protects internal components from extreme temperatures and moisture. Furthermore, the sensor withstands high pressure and significant mechanical shocks. This durability ensures a long service life in power plant environments. The electrodynamic design requires no external power for signal generation. Thus, the sensor provides highly reliable data even in electrically noisy areas. It remains a staple for heavy-duty condition monitoring.

Asset Protection and Monitoring

This vibration sensor integrates directly into Emerson MMS 3000 and MMS 6000 systems. It identifies imbalance, misalignment, and looseness in large machine shafts. Early detection of these faults prevents catastrophic equipment failure. Additionally, the high-fidelity output supports detailed frequency analysis. This allows maintenance teams to schedule repairs during planned outages. The sensor helps minimize unplanned downtime in chemical and energy facilities. Therefore, it serves as a critical safeguard for high-value rotating equipment.

Installation and Integration

The PR9268/201-100 features a standardized mounting interface for easy site installation. It connects via shielded cables to eliminate electromagnetic interference. Technicians can mount the unit on turbine casings or pump housings. The sensor supports various cable lengths to accommodate diverse plant layouts. Moreover, it works seamlessly with modern Distributed Control Systems (DCS). This compatibility ensures rapid deployment during system upgrades. Proper installation guarantees accurate data for your machinery protection program.

Technical Specifications

• Manufacturer: Emerson / Epro
• Model Number: PR9268/201-100
• Measurement Principle: Electrodynamic (Moving Coil)
• Frequency Range: 10 Hz to 1000 Hz
• Sensitivity: 30 mV/mm/s (standardized)
• Measurement Axis: Vertical or Horizontal (model dependent)
• Weight: 1.22 kg
• Environmental Protection: IP65 or higher rated housing
• Operating Temperature: Up to 200°C (standard variant)