Bently Nevada 3500/70M 176449-09 Reciprocating Pulse Velocity Monitor

The Bently Nevada 3500/70M 176449-09 Reciprocating Pulse Velocity Monitor is designed specifically for monitoring reciprocating compressors and similar machinery. It provides highly accurate measurement of reciprocating pulse velocity (RPV), enabling early detection of mechanical issues such as valve leaks, piston ring wear, and cylinder-related faults. Integrated within the Bently Nevada 3500 Machinery Protection System, the 3500/70M offers continuous online monitoring, alarm capabilities, and system integration for improved equipment reliability and plant safety.

Key Features

• Dedicated reciprocating machinery monitoring with pulse velocity analysis

• Two independent input channels for monitoring critical measurements

• User-configurable alarm setpoints (Alert and Danger) per channel

• Seamless integration with the Bently Nevada 3500 rack system

• Supports predictive maintenance by detecting cylinder and valve wear early

• Online diagnostics for continuous condition monitoring

• Rugged design for operation in harsh industrial environments

Technical Specifications

Industry Applications

• Reciprocating compressors – detection of cylinder valve leaks, piston ring wear, and mechanical faults

• Petrochemical plants – monitoring reciprocating machinery in refining and processing operations

• Oil and gas industry – continuous protection of compressors in upstream and downstream facilities

• Power generation – monitoring reciprocating auxiliary equipment

• Industrial gas production – protection of reciprocating machinery for safe and reliable operation

Frequently Asked Questions (FAQ)

Q1: What is the main function of the 3500/70M 176449-09?

It measures reciprocating pulse velocity to monitor and protect reciprocating machinery.

Q2: How many channels does this module support?

It has 2 independent monitoring channels.

Q3: What type of machines does it monitor?

It is specifically designed for reciprocating compressors and similar equipment.

Q4: What alarms does it provide?

It provides two configurable alarms (Alert and Danger) per channel.

Q5: How does it integrate with the system?

It installs directly into the Bently Nevada 3500 rack and communicates with other modules.

Q6: Can it help with predictive maintenance?

Yes, it detects issues such as valve leaks and piston ring wear early for predictive maintenance strategies.

Q7: What power source does it use?

It is powered through the 3500 rack backplane.

Q8: Is it suitable for harsh environments?

Yes, it is ruggedly built for reliable operation in demanding industrial conditions.

Q9: What is its operating temperature range?

It operates between -30°C and +65°C.

Q10: Which industries typically use this module?

It is widely used in oil & gas, petrochemical, refining, and power generation sectors.