Bently Nevada 3300/50-01-00-00-00 Tachometer Module

Bently Nevada 3300/50-01-00-00-00 Tachometer Module

Precision speed measurement module from Bently Nevada's 3300 XL series. The 3300/50-01-00-00-00 converts magnetic pickup or proximity probe signals into accurate RPM outputs for machinery speed monitoring and protection applications.

⚙️ Core Specifications

Model Number: 3300/50-01-00-00-00
Module Type: Tachometer signal conditioner
Input Compatibility: Magnetic pickups, proximity probes, keyphasor signals
Speed Range: 60 to 120,000 RPM
Output Signal: 0-10 VDC proportional to speed
Pulse Output: TTL-compatible once-per-revolution signal
Accuracy: ±0.01% of reading
Update Rate: Real-time tracking with <10ms latency
Power Supply: -24 VDC system power
Operating Temperature: -30°C to +65°C
Compliance: API 670 machinery protection

🎯 Why Speed Monitoring Matters

Speed is the foundation of machinery diagnostics. Every vibration frequency, every bearing defect pattern, every imbalance signature relates directly to shaft speed. Without accurate RPM data, vibration analysis becomes guesswork. This tachometer module provides the reference signal that transforms raw vibration data into actionable intelligence.

Beyond diagnostics, speed monitoring protects equipment from dangerous operating conditions. Overspeed events can destroy turbines in seconds. Underspeed conditions indicate loss of load or mechanical binding. This module detects both scenarios and triggers protective actions before catastrophic damage occurs.

🔧 Technical Capabilities

✓ Wide Speed Range: Monitors everything from slow-roll (60 RPM) to ultra-high-speed turbomachinery (120,000 RPM)
✓ Multi-Input Flexibility: Works with magnetic pickups, proximity probes, and optical sensors
✓ Dual Outputs: Analog voltage for trending plus digital pulse for phase reference
✓ Noise Immunity: Advanced filtering rejects electrical interference and false triggers
✓ Self-Diagnostics: Continuous health monitoring with fault indication

🏭 Critical Applications

Turbine Overspeed Protection: Gas and steam turbines require fail-safe overspeed detection to prevent catastrophic rotor failure. This module provides the primary speed signal for emergency trip systems that must respond within milliseconds.

Compressor Anti-Surge Control: Centrifugal compressors need precise speed feedback for surge prevention algorithms. The module's high accuracy and fast update rate enable real-time control adjustments that keep compressors operating in safe zones.

Variable Speed Drive Verification: VFD-controlled equipment requires independent speed verification separate from the drive's internal feedback. This module provides that critical redundancy, detecting drive failures or mechanical slippage.

💡 System Integration

The 3300/50-01-00-00-00 integrates seamlessly into 3500 rack monitoring systems, standalone trip modules, and plant control systems. The analog output feeds trending software and DCS inputs for continuous speed monitoring. The digital pulse output provides phase reference for vibration analyzers, enabling order tracking, waterfall plots, and advanced diagnostic techniques.

Installation is straightforward—connect the sensor input, configure the pulses-per-revolution setting, and the module automatically scales the output. LED indicators show power status, signal OK, and fault conditions for quick troubleshooting.

🛡️ Reliability Engineering

Field-proven across millions of operating hours in power generation, oil and gas, and heavy industry. The module's robust design withstands electrical noise from VFDs, welders, and high-voltage switchgear. Conformal coating protects circuitry from moisture, dust, and chemical exposure in harsh industrial environments.

📦 Complete Package

Module includes DIN rail mounting hardware, terminal block connectors, calibration certificate, configuration guide, and technical documentation. Factory-tested and ready for immediate deployment in critical machinery protection systems.

Product Condition: Brand new, factory-sealed with full manufacturer warranty and technical support.