Bently Nevada 3500/50 133388-02 Tachometer Module

The Bently Nevada 3500/50 133388-02 Tachometer Module is a high-performance monitoring module designed for precise speed and phase reference measurements in industrial machinery. As part of the Bently Nevada 3500 Machinery Protection System, it ensures accurate detection of shaft rotational speed, acceleration, and direction. This module is essential for machinery protection and control applications where real-time speed data is critical, such as in turbines, compressors, and large rotating equipment.

It is widely used in condition monitoring systems to trigger overspeed trips, synchronize phase reference for vibration analysis, and enhance the overall protection of critical assets.

Key Features

• Two-channel tachometer inputs for redundant speed monitoring

• Supports multiple sensor types including proximity probes and magnetic pickups

• Overspeed detection with high reliability and fast response

• Phase reference signal output for vibration analysis modules

• Full integration with the 3500 rack system

• Configurable alarm setpoints for speed and acceleration

Technical Specifications

Industry Applications

• Turbine overspeed protection

• Compressor speed monitoring

• Generator speed control systems

• Phase reference for vibration monitoring

• High-speed rotating machinery protection in oil, gas, and power generation

Frequently Asked Questions (FAQ)

Q1: What is the main function of the 3500/50 Tachometer Module?

It measures machinery speed and provides phase reference signals for vibration analysis.

Q2: How many input channels does it have?

It has two independent tachometer channels.

Q3: Which sensors are supported?

It supports proximity probes and magnetic pickups.

Q4: What is the speed measurement range?

It can measure from 1 to 120,000 RPM.

Q5: Can it detect overspeed conditions?

Yes, it includes configurable overspeed and underspeed alarms.

Q6: Is it compatible with the Bently Nevada 3500 rack?

Yes, it integrates seamlessly into the 3500 Series rack.

Q7: What is the accuracy of speed measurement?

It offers ±0.01% of full-scale accuracy.

Q8: Does it require an external power supply?

No, it is powered directly from the 3500 rack.

Q9: What is the operating temperature range?

It operates between -30°C and +65°C.

Q10: What is the part number for this version?

The part number is 133388-02.