Product Overview

The Bently Nevada 3300/50 Tachometer Module is a cornerstone component within the legacy 3300 Monitoring System, designed specifically to provide reliable speed monitoring for critical rotating machinery. As an essential element in vibration and machinery protection, this single-channel monitor serves as a high-precision interface for monitoring shaft speed and rotor position.

Engineered for reliability in harsh industrial environments, the 3300/50 delivers dual setpoint alarm capabilities and a standard 4-20 mA output, allowing for seamless integration into existing DCS or PLC control architectures. Whether you are looking to buy a 3300/50 to replace a failing unit or maintaining your plant’s legacy monitoring infrastructure, this module ensures your machinery operates within safe parameters.

Key Features

• Single-Channel Precision: Dedicated monitoring for accurate speed measurement and overspeed protection.

• Dual Setpoint Alarms: Configurable thresholds for Alert and Danger conditions to ensure timely machine shutdown.

• Standardized Output: Includes a 4-20 mA proportional output for integration with control loops and data acquisition systems.

• Robust Design: Built to withstand high-vibration and high-temperature environments typical of power generation and oil & gas facilities.

• Easy Calibration: Streamlined front-panel access for setup and maintenance.

Technical Specifications

Model Configuration Explanation

The Bently Nevada 3300/50 is configured via internal switches and potentiometers located on the module’s front interface. These settings allow technicians to define the transducer type, set full-scale RPM ranges, and configure the logic for the dual relay setpoints. Proper configuration is vital to ensuring the module correctly interprets input signals from proximity probes or magnetic pickups used in rotating machinery speed monitoring.

Typical Applications

• Steam and Gas Turbines: Vital for overspeed protection and operational speed logging.

• Centrifugal Compressors: Monitoring speed to prevent surging and mechanical failure.

• Large Electric Motors and Generators: Ensuring constant speed monitoring for load management.

• Pumps and Fans: Protecting high-value assets from rotational speed instability.

• Petrochemical Processing: Essential safety monitoring for high-speed rotating equipment in hazardous zones.

System Compatibility

The 3300/50 is specifically designed for the Bently Nevada 3300 Monitoring System chassis. It is compatible with a wide range of proximity transducer systems, including 5mm, 8mm, and 11mm probes. When upgrading or replacing modules, ensure your rack power supply and communication modules are fully functional to support the 3300/50 integration.

Installation Guidelines

1. Safety First: Ensure power is isolated from the 3300 rack before attempting to insert or remove any module.

2. Seat the Module: Carefully align the module with the rack guide rails and slide it in until the connector is firmly seated in the backplane.

3. Wiring: Use shielded twisted-pair cables for signal inputs to minimize electromagnetic interference.

4. Configuration: Verify all switch settings match the requirements of the machine’s speed range before applying power.

5. Testing: Perform a loop test on the 4-20 mA output to ensure the signal correctly scales to the DCS/PLC receiver.

Product Advantages

Choosing genuine Bently Nevada parts ensures maximum operational safety. Unlike third-party alternatives, the original 3300/50 provides the exact response times and signal filtering required by Bently Nevada’s proprietary protection algorithms. Our units are tested for performance, guaranteeing that you receive reliable industrial automation spare parts that meet the original factory standards.

Ordering Information

We maintain a substantial inventory of the 3300/50 Tachometer Module. If you are looking for an in-stock solution to minimize plant downtime, contact our sales team today. We provide transparent pricing and expedited shipping options.

• Availability: In Stock

• Shipping: Worldwide

• Support: Technical documentation and installation assistance available upon request.

Logistics and Shipping

We prioritize the integrity of your hardware during transit. Every 3300/50 module is packed using anti-static industrial packaging, providing advanced protection against electrostatic discharge (ESD), moisture, and physical impact. We partner with top-tier global logistics providers to ensure your equipment arrives safely and on time, whether you are in a remote industrial site or a major logistics hub.

Why Choose Maxwell PLC

At Maxwell PLC, we bridge the gap between legacy industrial systems and modern availability. With over 50 years of experience in the automation industry, we understand the critical nature of TSI and vibration monitoring systems. We specialize in sourcing hard-to-find, genuine Bently Nevada parts, providing expert technical support, and ensuring that your procurement process is as efficient as your machinery.

Frequently Asked Questions

• What is the lead time if I buy a 3300/50 from you?

  We keep this module in stock, allowing for same-day or next-day processing for most orders.

• Is this a genuine Bently Nevada product?

  Yes, we specialize in providing genuine Bently Nevada parts that have been inspected for quality.

• Does the 3300/50 come with a warranty?

  All our industrial automation spare parts come with a comprehensive warranty to give you peace of mind.

• Can you provide a competitive quote for bulk orders?

  Absolutely. Please contact our sales department with your required quantities for project-specific pricing.

• What is the difference between this and newer Bently Nevada systems?

  The 3300/50 is for the legacy 3300 series. Newer systems, such as the 3500 series, offer enhanced digital communication and modularity.

• Is technical support included?

  Our team of industrial automation experts is available to provide guidance on setup and compatibility.

• Do you ship internationally?

  Yes, we ship to all major global regions using secure and traceable logistics services.

• Can I use this to replace a 3300/50 that is currently failing?

  Yes, as long as it matches your current part number and revision, it is a direct drop-in replacement.

• What payment methods do you accept?

  We offer flexible payment terms for established corporate accounts and standard electronic bank transfers.

• What should I do if my module arrives damaged?

  Due to our rigorous anti-static and shock-proof packaging, damage is rare. However, we provide full insurance and support to resolve any logistics issues immediately.

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