79748-01 | Bently Nevada 3300 Series Dual Axial Position Monitor Module

Product Summary

The Bently Nevada 79748-01 is a 3300 Series Dual Axial Position Monitor module engineered for continuous machinery protection. Operating within the modular 3300 Series chassis, this module processes inputs from two independent proximity transducer systems to measure thrust or axial shaft displacement, driving real-time alarms and automatic shutdown logic to protect critical rotating machinery from internal axial contact failures.

Core Specifications

• Model Number: 79748-01
• Product Type: 3300 Series Dual Axial Position Monitor
• Internal Coating: Conformal coated circuit board assembly
• System Compatibility: Bently Nevada 3300 Series Monitoring System Chassis
• Input Channels: 2 independent proximity transducer channels (Axial/Thrust Position)
• Output Configuration: Front-panel buffered transducer outputs and discrete Alert/Danger relay driving capabilities
• Agency Approval Option: 01 (Multiple Hazardous Area Approvals including ATEX, IECEx, and CSA certifications)

Performance & Signal Characteristics

• Signal Processing: Continuous tracking of static axial displacement relative to the thrust bearing clearance
• Signal Diagnostics: Integrated front-panel coaxial connectors provide unisolated raw signals for external diagnostics and dynamic troubleshooting instrumentation
• Trip Logic Integration: Supports programmable AND/OR voting logic combinations for discrete relay activation
• Noise Immunity: Built-in RFI/EMI filtering maintains signal integrity within electrically harsh industrial environments

Hardware Integration & Deployment

• Physical Design: Standard plug-in form factor with a rugged faceplate and dual captive installation screws
• Mounting Location: Installs into a single dedicated monitor slot within a 3300 instrument rack
• Environmental Protection: Factory-applied conformal coating isolates all internal circuitry from moisture, conductive particulate dust, and corrosive gas environments
• Field Termination: Interface connections route directly through the associated rear-mounted 3300 backplane I/O termination block

Environmental Limits

• Operating Temperature: -10°C to +60°C (+14°F to +140°F)
• Storage Temperature Range: -40°C to +85°C (-40°F to +185°F)
• Relative Humidity: Designed for long-term reliability in high-humidity industrial environments via its conformal coated execution