The Bently Nevada 3500/50 288062-02 Tachometer Module is an advanced monitoring module designed to provide precise speed and phase reference measurements for industrial rotating machinery. It is a critical part of the 3500 Machinery Protection System, ensuring reliable detection of shaft rotational speed and direction, as well as generating phase reference signals for vibration analysis modules.

This module is essential for protecting and controlling high-value assets such as turbines, compressors, pumps, and generators. With high accuracy and configurable alarm setpoints, it plays a vital role in preventing overspeed events, synchronizing monitoring systems, and maintaining machinery reliability.

Key Features

• Two-channel tachometer inputs for redundant speed monitoring

• Compatible with multiple sensor types including proximity probes and magnetic pickups

• Overspeed and underspeed protection with fast trip response

• Phase reference output for advanced vibration analysis

• Full integration with the Bently Nevada 3500 rack

• High measurement accuracy for reliable machinery protection

• Configurable alarm thresholds for speed and acceleration events

Technical Specifications

Industry Applications

• Turbine overspeed detection and protection

• Compressor speed monitoring and control

• Generator rotational speed monitoring

• Phase reference synchronization for vibration analysis systems

• High-speed rotating equipment monitoring in oil, gas, and power generation industries

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the 3500/50 288062-02 Tachometer Module?

It measures machinery rotational speed and provides a phase reference signal for vibration monitoring.

Q2: How many channels does this module have?

It features two independent tachometer channels for redundancy.

Q3: Which sensors are supported?

It supports proximity probes and magnetic pickup sensors.

Q4: What is the speed range it can measure?

It can measure speeds from 1 to 120,000 RPM.

Q5: Can it provide overspeed protection?

Yes, it has configurable overspeed and underspeed alarm setpoints.

Q6: Is it compatible with other Bently Nevada 3500 modules?

Yes, it fully integrates with the 3500 rack system and works with other monitoring modules.

Q7: How accurate is its measurement?

It offers an accuracy of ±0.01% of full scale.

Q8: Does it need 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 module?

The part number is 288062-02.