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Bently Nevada 3500/72M 140734-08 Rod Position Monitor

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.

Description
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Bently Nevada 3500/72M 140734-08 Rod Position Monitor

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. 

Model Information:

Bently Nevada 3500/72M 140734-08

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

350072 140734-08

Technical Specifications:
ParameterSpecification
Model3500/72M 140734-08
Product TypeRod Position Monitor
Monitoring Channels4 channels
Input TypeProximity sensor signals
Measurement FunctionsRod position, rod drop, supercompressor measurement
Signal ProcessingDynamic and static position measurement
Alarm FunctionUser-programmable alarm thresholds
Configuration Software3500 Rack Configuration Software
Rack CompatibilityBently Nevada 3500 Rack System
Power Supply3500 rack power supply
Communication3500 system backplane communication
Operating Temperature-30°C to +65°C (depending on I/O configuration)
Installation3500 rack module installation
Module SizeApprox. 241.3 × 24.4 × 241.8 mm
WeightApprox. 0.9 kg


350072 140734-08

Main Features:

Four-Channel Position Monitoring

The 3500/72M provides four independent monitoring channels, allowing multiple mechanical position measurements to be handled within one protection module.

Reciprocating Compressor Protection

The module is designed for applications such as reciprocating compressors where piston rod movement monitoring is critical for safe operation.

Programmable Alarm Functions

Users can configure alarm levels according to machine operating requirements, helping identify abnormal rod movement conditions.

Integration with 3500 Platform

The module operates within the Bently Nevada 3500 protection architecture and works together with other monitoring, relay, and communication modules.

Advantages:
  • 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

Application Fields:

Oil & Gas Industry

Used for reciprocating compressors, gas compressors, and critical rotating equipment protection.

Petrochemical Plants

Monitors compressor mechanical conditions in refining and chemical processing systems.

Power Generation

Supports machinery protection applications involving large reciprocating equipment.

Industrial Manufacturing

Used for heavy-duty machines requiring accurate position monitoring.

Natural Gas Processing

Provides condition monitoring for compressor stations and gas transmission equipment.

FAQ:

Q1: What is the function of Bently Nevada 3500/72M 140734-08?

A:
The module monitors piston rod position and related mechanical movement parameters in reciprocating machinery, providing alarm and protection functions.

Q2: How many channels does the 3500/72M 140734-08 support?

A:
It is a four-channel monitoring module designed to process multiple position measurement inputs.

Q3: What measurements can this module perform?

A:
The module supports rod position measurement, rod drop measurement, and supercompressor measurement functions.

Q4: Does the 3500/72M measure vibration?

A:
No. It is primarily a position monitoring module for reciprocating machinery rather than a standard vibration monitoring module.

Q5: Which system is the 3500/72M compatible with?

A:
It is designed for installation in the Bently Nevada 3500 Machinery Protection System rack.


Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.

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