Bently Nevada 3500/72М 135489-01 Reciprocating Rod Position Monitor

The Bently Nevada 3500/72M 135489-01 Reciprocating Rod Position Monitor is designed to measure and monitor the rod position and rod drop of reciprocating compressors. It provides early detection of mechanical wear such as crosshead shoe wear, rider band wear, and piston rod misalignment, helping to prevent costly equipment failures. Integrated into the 3500 Machinery Protection System, it delivers accurate, continuous monitoring with configurable alarms, ensuring maximum compressor reliability and safety in critical industrial operations.

Key Features

• Two independent channels for reciprocating rod position monitoring

• Continuous monitoring of rod position and rod drop

• Early detection of wear and misalignment issues in reciprocating machinery

• User-configurable alarms (Alert and Danger) per channel

• Supports Bently Nevada proximity probes for precise displacement measurements

• Full compatibility with 3500 rack systems and plant control interfaces

• Rugged and reliable design for harsh industrial environments

• Enhances predictive maintenance programs to minimize downtime

Technical Specifications

Industry Applications

• Reciprocating compressors – monitoring rod position and crosshead wear

• Oil and gas facilities – ensuring reliable operation of reciprocating equipment

• Petrochemical plants – monitoring piston rod misalignment and wear

• Power generation – predictive maintenance of reciprocating auxiliary equipment

• Industrial gas plants – improving machinery reliability and performance

Frequently Asked Questions (FAQ)

Q1: What does the 3500/72M 135489-01 monitor?

It measures reciprocating compressor rod position and rod drop.

Q2: How many channels does it provide?

It has 2 independent monitoring channels.

Q3: What type of sensors are supported?

It works with Bently Nevada proximity probes, such as the 3300 XL series.

Q4: What types of faults can it detect?

It detects crosshead shoe wear, rider band wear, piston rod misalignment, and rod drop.

Q5: Can alarm limits be set?

Yes, it provides configurable Alert and Danger setpoints per channel.

Q6: Is it compatible with other Bently Nevada modules?

Yes, it integrates seamlessly into the 3500 rack system.

Q7: What is the operating temperature range?

It operates between -30°C and +65°C.

Q8: Is it suitable for predictive maintenance programs?

Yes, it helps detect issues early to reduce unplanned downtime.

Q9: What industries use this module?

Primarily oil & gas, petrochemical, refining, power generation, and industrial gas production.

Q10: How is power supplied to the module?

It is powered directly through the 3500 rack backplane.