Description

The Bently Nevada 3300/35 Temperature Monitor is a rack-mounted module designed to measure multiple temperature points in turbines, compressors, and other critical rotating machinery. The 05 suffix option specifies a 6-channel configuration, supporting both RTD and thermocouple inputs. It continuously compares temperature readings against alarm setpoints, providing early warning of abnormal thermal conditions and enabling predictive maintenance.

Features

• Six independent input channels for comprehensive thermal monitoring.
• Supports a wide range of sensor types including RTDs (Pt100, Pt1000) and thermocouples (J, K, T types).
• Integrated alarm logic with Alert and Danger setpoints.
• Front-panel LED indicators for system status: OK, Bypass, Alert, and Danger.
• Standard relay outputs for direct integration with plant safety and control systems.

Applications

This module is primarily used in industrial environments for monitoring bearing temperatures, stator windings, and equipment casings in large rotating machinery such as gas and steam turbines, centrifugal compressors, and large electric motors.

Technical Specifications

Installation Guidelines

• Ensure the 3300 rack is powered down before inserting or removing the module to prevent electrical damage.
• Ensure proper grounding of the rack system to mitigate EMI/RFI interference.
• Use shielded twisted-pair cabling for all sensor inputs to maintain signal integrity.
• Verify that sensor wiring matches the configured input type (RTD vs. Thermocouple) before applying power.
• Maintain adequate ventilation around the rack to ensure operating temperatures remain within the specified -35 degC to +65 degC range.

FAQ

What sensor types are compatible with this module?

This specific model supports RTDs (Pt100 and Pt1000) and standard J, K, and T type thermocouples.

Does this module require external barriers?

The 00 suffix in the barrier option position indicates that this unit is configured with standard input barriers; ensure your installation environment complies with hazardous area requirements if applicable.

How are the alarm setpoints configured?

Alarm setpoints for Alert and Danger conditions are configured through the Bently Nevada 3300 system interface, allowing for independent thresholds per channel.