Description

The Bently Nevada 133396-01 is a specialized I/O module designed for the 3500/53 Electronic Overspeed Detection System. This module serves as a critical component in machinery protection, providing a highly reliable and fast-response redundant tachometer system. It is engineered to meet the stringent requirements of American Petroleum Institute (API) Standards 670 and 612 for overspeed protection in critical rotating machinery.

Features

• Designed for integration with the 3500 Series Machinery Detection System.
• Supports redundant configurations, including 2-out-of-2 or 2-out-of-3 (recommended) voting logic.
• High-speed response time of less than 50 ms for critical safety shutdown applications.
• Internal termination design using 10-pin Euro-style connectors for direct wiring.
• Epoxy-sealed construction for enhanced environmental durability.

Applications

• Power Generation: Monitoring and protection for steam, gas, and hydro turbines and generators.
• Oil & Gas: Overspeed protection for large centrifugal and reciprocating compressors and high-capacity pumps.
• Industrial Processing: Safety monitoring for large fans, rolling mills, and high-speed drying cylinders in paper machines.
• LNG Liquefaction: Protection for massive refrigeration compressors.

Technical Specifications

Installation Guidelines

• Slot Placement: This is a rear I/O module; it must be installed in the 3500 rack directly behind the corresponding 3500/53 monitor module.
• Wiring: Connect speed sensors (Proximitor or Magnetic Pickups) to the appropriate channel inputs. For 2-out-of-3 (2oo3) voting, ensure all three sensors are correctly wired to the respective channels.
• Handling: Ensure the rack power is disconnected before installing or removing the module to prevent electrical damage. Use standard ESD protection practices when handling the module.
• Termination: This model utilizes internal terminations; ensure wires are securely landed on the 10-pin Euro-style connectors.

FAQs

What is the primary function of the 133396-01?
It acts as an I/O interface for the 3500/53 Electronic Overspeed Detection System, providing signal conditioning and independent channel monitoring for proximity probes.

Can this module be used in a 2-out-of-3 voting system?
Yes, the 3500/53 system is designed to support 2-out-of-2 or 2-out-of-3 voting configurations to ensure high reliability and fault tolerance.

Is this module compatible with all 3500 racks?
The Overspeed Detection System requires a 3500 rack equipped with redundant power supplies to function correctly.