Bently Nevada 81228-01 Temperature Monitor

Quick Overview

The 81228-01 is a high-density Six-Channel Temperature Monitor designed for the Bently Nevada 3300 and 3500 series racks. It provides continuous surveillance of critical machinery temperatures by accepting inputs from both RTDs and thermocouples. By integrating temperature data directly into the protection rack, it enables proactive diagnostics and automatic machinery trips to prevent overheating and catastrophic failure.

Technical Data

• Model: 81228-01

• Channels: 6 Independent Inputs

• Sensor Support: RTDs and Thermocouples

• System Compatibility: Bently Nevada 3300 / 3500 Racks

• Sensitivity (Velocity Mode): 5.71 mV/mm/s (145 mV/in/s) $\pm 5\%$

• Frequency Response: 15 Hz to 1,000 Hz ($\pm 3.0$ dB)

• Operating Temp: -35°C to +65°C

• Housing: Stainless Steel

Key Features

• Comprehensive Coverage: Monitors six independent points simultaneously, making it ideal for tracking motor windings and multi-bearing assemblies.

• Dual-Sensor Compatibility: Highly versatile input stage accepts both Resistance Temperature Detectors (RTDs) and various Thermocouples.

• Predictive Diagnostics: Enables condition-based maintenance by identifying subtle temperature anomalies before they escalate into mechanical issues.

• Reliable Integration: Powered directly by the rack backplane, ensuring seamless communication with system alarms and logic.

• Industrial Hardening: Features a stainless steel case and 2-pin Mil-spec connectors to survive the high-vibration and corrosive environments of industrial plants.