Overview
The Bently Nevada PWA79522-0 is a dedicated six-channel temperature monitor designed for the 3300/35 series machinery protection platform. This analog input module monitors resistance temperature detectors (RTDs) to provide continuous thermal surveillance of critical industrial assets including bearing metal temperatures, stator windings, and lubrication systems. The PWA79522-0 is a proven component in legacy Bently Nevada systems and remains essential for compliance with API 670 machinery health monitoring standards.
Key Features
- Six Independent Channels: Monitor up to six RTD temperature points simultaneously for comprehensive thermal coverage
- RTD Support: Engineered for precision Resistance Temperature Detector inputs with proven repeatability
- Industrial-Grade Reliability: Decades of proven field performance in turbomachinery and rotating equipment applications
- Alarm Logic: Dual-level thresholds (Alert and Danger) prevent thermal runaway and mechanical failure
- Standard Mounting: Direct slot installation into Bently Nevada 3300/35 rack assemblies
Technical Specifications
- Model: 3300/35-PWA79522
- Module Type: Six-Channel Analog Temperature Monitor
- Sensor Interface: RTD (Resistance Temperature Detector)
- Channels: 6 independent temperature measurement channels
- Operating Temperature: 0°C to +65°C (+32°F to +150°F)
- Storage Temperature: −40°C to +85°C (−40°F to +185°F)
- Mounting: Vertical slot card (3300/35 chassis)
- Standards Compliance: API 670
- Condition: Used, Tested
Typical Applications
The PWA79522-0 is widely deployed in machinery protection and condition monitoring systems across:
- Turbine generator sets and steam turbines
- Centrifugal and screw compressors
- Pump systems (including cooling water and lube oil circulation pumps)
- High-speed rotating machinery in petrochemical and refining facilities
- Large electric motors and motor-driven equipment
- Asset protection and predictive maintenance programs
Compatibility & Replacements
Compatible With
- Bently Nevada 3300/35 machinery protection system
- Bently Nevada 3300 series mainframes and racks
- RTD transducers and temperature sensors (100Ω platinum, various ranges)
- Thermocouple inputs (with configuration selection)
- API 670 compliant monitoring and alarm systems
Replaces / Drop-In Replacement For
- 3300/35-PWA79522-01 (variant with revision suffix)
- Similar six-channel RTD modules in 3300/35 applications
- Verify exact compatibility with your system documentation before ordering
Works With
- Bently Nevada monitoring and control software
- Industry-standard RTD wiring and conduit practices
- Honeywell and third-party machinery health platforms supporting 3300 integration
- Legacy and modern DCS systems with discrete or Ethernet gateways
