The Bently Nevada PWA79522-01V (often associated with the 3300/35 series) is a high-reliability display panel module used for six-channel online temperature monitoring. This module is part of the legacy 3300 series machinery protection system, specifically designed to interface with RTD (Resistance Temperature Detector) or Thermocouple (TC) input modules. It provides clear, real-time visualization of temperature levels across six independent channels, ensuring the safe operation of critical rotating machinery like turbines, compressors, and large motors.
Product Specifications
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Product ID: PWA79522-01V
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Model Series: 3300/35 (Six-Channel Temperature Monitor)
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Dimensions: Approximately 241 mm x 25 mm x 241 mm (Standard 3300 Rack Module)
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Weight: Approximately 0.36 kg
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Country of Origin: USA
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Number of Channels: 6 Independent Channels
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Compatibility: Compatible with 3300/30 (TC) and 3300/35 (RTD) monitoring systems
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Display Type: LED/LCD Bargraph or Numeric Display (configuration dependent)
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Operating Temperature: 0°C to +65°C
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Storage Temperature: -40°C to +85°C
Application Fields
This display panel is primarily used in industrial environments where continuous thermal monitoring is essential for predictive maintenance. Key application fields include power plants (monitoring generator windings), oil and gas refineries (tracking bearing temperatures in centrifugal compressors), and water treatment facilities. Its primary function is to provide operators with immediate visual feedback and local alarm status for critical machine components.
Product Instructions
The PWA79522-01V is designed to be installed into the front slots of a Bently Nevada 3300 series rack. Before installation, ensure the rack is powered down or follow hot-insertion procedures as specified in the system manual. The display module connects to the underlying 3300/35 monitor circuitry via the backplane. Users should verify that the channel labeling on the display matches the field sensor assignments. Calibration of the display range and alarm setpoints is typically managed through the monitor’s internal adjustments or configuration software. Periodically check the front panel LEDs for “OK” status to ensure the module is functioning correctly.
FAQ: Common Questions and Answers
Q: Can this display panel be used with the 3500 series system? A: No, the PWA79522-01V is specifically designed for the legacy 3300 series. The 3500 series uses a completely different architecture and display interface (such as the 3500/94).
Q: Is this module capable of initiating a machinery trip? A: While this display panel shows the alarm status, the actual “Danger” and “Alert” relay logic is executed by the underlying 3300/35 or 3300/30 monitor module. The display panel provides the visual interface for these states.
Q: What should I do if a specific channel is showing an “Inhibit” status? A: This usually indicates that the channel has been manually bypassed for maintenance or that a sensor fault (like an open RTD circuit) has been detected, causing the system to automatically inhibit the alarm to prevent a false trip.
Discover more about the Bently Nevada PWA79522-01V and other 3300 series spare parts.
Recommended Similar Models
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BENTLY NEVADA 3300/35 (Full RTD Monitor Module)
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BENTLY NEVADA 3300/30 (Full TC Monitor Module)
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BENTLY NEVADA PWA78929-01 (Related Display Component)
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BENTLY NEVADA 3300/12 (Earlier Temperature Monitor Variant)
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BENTLY NEVADA 3300/10 (3300 System Power Supply)
