3500/50M Tachometer Module | Bently Nevada 3500 Series

Product Description

The Bently Nevada 3500/50M 286566-02 is a Tachometer Module designed for the 3500 Series Machinery Protection System. It provides precise monitoring of shaft rotational speed, rotor acceleration, and rotor direction, ensuring the safety and reliability of critical rotating equipment.

This module supports two input channels, compatible with proximity probes or magnetic pickups, and delivers highly accurate measurements up to 0.1%. Moreover, it complies with API 670 standards and supports Triple Modular Redundancy (TMR) configurations for enhanced system reliability.

Its rack-mounted form factor integrates seamlessly into the 3500 system, and hot-swappable capability allows maintenance without shutting down the machinery. In addition, built-in safety barriers enable safe operation in hazardous environments, making it ideal for oil & gas, power generation, and industrial manufacturing applications.

 Technical Specifications

• Model Number: 3500/50M

• Part Number: 286566-02

• Product Type: Tachometer Module

• Input Channels: 2 (supports proximity probes or magnetic pickups)

• Measured Parameters: Shaft speed, rotor acceleration, rotor direction

• Accuracy: Up to 0.1%

• Power Supply: 24 VDC

• Protection Rating: IP20

• Mounting Type: Rack-mounted (fits in 3500 rack)

• Dimensions: 241.3 mm × 24.4 mm × 241.8 mm

• Weight: 0.82 kg

• Certifications: CE, CSA, ATEX, GOST

• Redundancy Support: Triple Modular Redundancy (TMR)

• Hot-Swappable: Yes

• Country of Origin: USA

FAQ

Q1: How many channels does the 3500/50M module support?
It supports two input channels for proximity probes or magnetic pickups.

Q2: What parameters can this module measure?
It measures shaft speed, rotor acceleration, and rotor direction with high accuracy.

Q3: Can this module be maintained without system shutdown?
Yes, it is hot-swappable when installed with a redundant module.

Q4: Is it suitable for hazardous areas?
Yes, built-in safety barriers allow safe operation in hazardous environments.

Q5: What redundancy features are included?
It supports Triple Modular Redundancy (TMR) for enhanced system reliability.