The Bently Nevada 3500/72M 140734-08 Rod Position Monitor is a four-channel monitoring module designed for the 3500 Machinery Protection System. It is specifically developed for measuring and protecting reciprocating machinery by monitoring piston rod position, rod drop, and other dynamic or static position parameters.
The module receives signals from proximity sensors, conditions the input signals, and compares measured values with user-configured alarm limits. It provides continuous equipment protection and helps operators detect abnormal mechanical conditions before serious damage occurs.
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The Bently Nevada 3500/72M 140734-08 is a Rod Position Monitor module from the 3500 Series Machinery Protection System. It is engineered for applications requiring accurate measurement of reciprocating machine mechanical movement.
The module processes proximity sensor signals and can be configured through 3500 Rack Configuration Software for different monitoring functions, including:
Rod position measurement
Rod drop measurement
Supercompressor measurement
Dynamic and static position monitoring
The 3500/72M continuously evaluates measurement signals against programmable alarm thresholds. When monitored values exceed configured limits, the system can generate alarms for operator notification and machinery protection actions.
Manufacturer:
Bently Nevada
Series:
3500 Machinery Protection System
Part Number:
140734-08
Product Type:
Rod Position Monitor
Channel Configuration:
4-channel monitor
Primary Function:
Reciprocating machinery position monitoring and protection
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| Parameter | Specification |
|---|---|
| Model | 3500/72M 140734-08 |
| Product Type | Rod Position Monitor |
| Monitoring Channels | 4 channels |
| Input Type | Proximity sensor signals |
| Measurement Functions | Rod position, rod drop, supercompressor measurement |
| Signal Processing | Dynamic and static position measurement |
| Alarm Function | User-programmable alarm thresholds |
| Configuration Software | 3500 Rack Configuration Software |
| Rack Compatibility | Bently Nevada 3500 Rack System |
| Power Supply | 3500 rack power supply |
| Communication | 3500 system backplane communication |
| Operating Temperature | -30°C to +65°C (depending on I/O configuration) |
| Installation | 3500 rack module installation |
| Module Size | Approx. 241.3 × 24.4 × 241.8 mm |
| Weight | Approx. 0.9 kg |
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The 3500/72M provides four independent monitoring channels, allowing multiple mechanical position measurements to be handled within one protection module.
The module is designed for applications such as reciprocating compressors where piston rod movement monitoring is critical for safe operation.
Users can configure alarm levels according to machine operating requirements, helping identify abnormal rod movement conditions.
The module operates within the Bently Nevada 3500 protection architecture and works together with other monitoring, relay, and communication modules.
Provides continuous monitoring of piston rod movement
Helps prevent mechanical failures caused by abnormal rod position
Improves compressor reliability and operational safety
Supports predictive maintenance strategies
Reduces unexpected equipment downtime
Integrates with existing Bently Nevada 3500 systems
Used for reciprocating compressors, gas compressors, and critical rotating equipment protection.
Monitors compressor mechanical conditions in refining and chemical processing systems.
Supports machinery protection applications involving large reciprocating equipment.
Used for heavy-duty machines requiring accurate position monitoring.
Provides condition monitoring for compressor stations and gas transmission equipment.
A:
The module monitors piston rod position and related mechanical movement parameters in reciprocating machinery, providing alarm and protection functions.
A:
It is a four-channel monitoring module designed to process multiple position measurement inputs.
A:
The module supports rod position measurement, rod drop measurement, and supercompressor measurement functions.
A:
No. It is primarily a position monitoring module for reciprocating machinery rather than a standard vibration monitoring module.
A:
It is designed for installation in the Bently Nevada 3500 Machinery Protection System rack.
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