Bently Nevada 3500/77M 143729-01
Bently Nevada 3500/77M 143729-01
Bently Nevada 3500/77M 143729-01
Bently Nevada 3500/77M 143729-01
Bently Nevada 3500/77M 143729-01
Bently Nevada 3500/77M 143729-01
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3500/77M 143729-01

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The 3500/77M 143729-01 is a full-height rear slot Cylinder Pressure I/O Module with Internal Terminations designed for the Bently Nevada 3500/77M Recip Cylinder Pressure Monitor system.
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Technical specifications for 3500/77M 143729-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    3500/77M 143729-01
  • Product Family:
    3500 System
  • Product Type:
    Cylinder Pressure I/O Module
  • Stock:
    1
  • Compatible Monitor:
    3500/77M Recip Cylinder Pressure Monitor
  • I/O Module Type:
    Cylinder Pressure I/O with Internal Terminations
  • Transducer Power Supply:
    Transducer Power Supply
  • Input Impedance:
    50 kΩ
  • Buffered Transducer Outputs:
    4 coaxial connectors, short-circuit protected
  • Buffered Output Signal Characteristics:
    Inverted and offset by -2.265 Vdc
  • Output Impedance:
    550 Ω
  • Connectors Used:
    Euro-style headers (8-pin part 00580434, 3-pin part 00580441)
  • Rack Space Requirement:
    1 full-height rear slot
  • Operating Temperature Range:
    -30°C to +65°C (-22°F to +150°F)
  • Humidity:
    95% non-condensing
  • Weight:
    0.2 kg
  • Estimated shipping dimensions:
    241.3 x 24.4 x 99.1 mm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Compatibility Installation Firmware & Updates

Features:

  • Full-height rear slot I/O module designed with Euro-style internal termination headers for direct machinery rack wiring.
  • Provides +23.0 Vdc isolated transducer power output with built-in 24.5 mA current limiting on all 4 channel inputs.
  • Features four short-circuit protected coaxial buffered transducer outputs for safe raw dynamic signal access and diagnostics.
This item represents the standard Bently Nevada 143729-01 Cylinder Pressure I/O Module with Internal Terminations, designed for pairing with the 3500/77M Recip Cylinder Pressure Monitor module within a 3500 rack.

Designed specifically for reciprocating machinery protection, this unit receives and conditions dynamic pressure signals from positive voltage field transducers, interfacing critical pressure data directly to the rack backplane for real-time monitoring and dynamic stress calculation.

Ensure field wiring connects directly to the on-board Euro-style 8-pin and 3-pin headers without attempting to attach external termination blocks or cables, as internal termination architecture does not support secondary external termination hardware.

Availability,The Bently Nevada 143729-01 is available for shipment with original factory-level specifications guaranteed by the manufacturer (OEM).
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Continuous cylinder pressure signal interfacing for industrial reciprocating compressor condition monitoring.
  • Dynamic load transmission enabling calculation of peak rod compression and peak rod tension in heavy-duty gas compressors.
  • Signal conditioning for calculating degree of rod reversal and volumetric compression ratios on multi-chamber cylinders.
  • Designed specifically for seamless backplane integration with the Bently Nevada 3500/77M Recip Cylinder Pressure Monitor module.
  • Interfaces signal inputs from up to 4 Bently-approved third-party positive voltage dynamic cylinder pressure transducers.
  • Features short-circuit protected coaxial buffered outputs for direct connection to external diagnostic software and oscilloscopes.
  • Mounts directly into a full-height rear slot of the 3500 system rack, reducing cabinet footprint and simplifying panel layout.
  • Equipped with Euro-style internal terminal headers for direct, secure field transducer wiring inside the enclosure.
  • Streamlines field deployment by connecting directly to the rack backplane without requiring external termination blocks.
  • Requires 3500/77M Monitor Module Firmware Revision L or later for proper system recognition and rack operation.
  • Fully compatible with Bently Nevada 3500/01 System Configuration Software Version 3.00 or higher.
  • Requires 3500/02 Data Acquisition Software Version 2.30 and 3500/03 Display Software Version 1.30 or higher.
Description
Bently Nevada 3500/77M 143729-01 Cylinder Pressure I/O Module is a dedicated rear-panel hardware interface specifically developed for the 3500/77M Reciprocating Cylinder Pressure Monitoring system. It routes analog signals from up to four Bently-approved third-party dynamic cylinder pressure sensors directly into the rack backplane, ensuring reliable continuous data transmission in demanding industrial plant environments.

Engineered with internal termination connectors, the 143729-01 simplifies field wiring inside the machinery cabinet without requiring secondary external termination blocks. Each channel incorporates short-circuit protected buffered transducer outputs, allowing plant engineers to connect diagnostic instruments, oscilloscopes, or specialized analytical systems safely without interrupting active protective monitoring circuits.

Serving a crucial role in heavy-duty reciprocating compressor monitoring across oil, gas, and petrochemical facilities, the 143729-01 helps enable accurate calculation of cylinder operating parameters, peak rod compression, peak rod tension, and degree of rod reversal. Its rugged industrial construction withstands harsh operating temperatures ranging from -30°C to +65°C while maintaining compliance with international industrial standards.
Alternative Names
3500/77M 143729-01 143729-01 3500-77M 143729-01 143729 01 Bently Nevada 143729-01 Bently Nevada 3500/77M 143729-01 143729-01 I/O Module 143729-01 Internal Termination Module
Technical notes
Bently Nevada 3500/77M 143729-01 uses Euro-style internal terminal headers (8-pin and 3-pin) and cannot be connected with external termination blocks or external termination cables.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What are the electrical output characteristics of the transducer power supply and buffered outputs on the 143729-01?
The 143729-01 provides a +23.0 ± 0.8 Vdc transducer power supply with 24.5 mA current limiting per channel. Its four front coaxial buffered transducer outputs are short-circuit protected, with signals inverted and offset by -2.265 Vdc and an output impedance of 550 Ω.
What terminal headers and connectors are used on the rear panel of the 143729-01?
The module uses Euro-style internal connector headers directly on the board, specifically utilizing one 8-pin connector header (part number 00580434) and one 3-pin connector header (part number 00580441).
Does the 143729-01 support external termination blocks or cables?
No, the 143729-01 is specifically engineered with internal terminations. Internal termination I/O modules cannot be used with external termination blocks or external cables. For external termination requirements, part number 143737-01 must be specified instead.
Which monitor module and rack configuration are compatible with the 143729-01?
The 143729-01 I/O module occupies one full-height rear rack slot and is specifically designed to work paired with the Bently Nevada 3500/77M Recip Cylinder Pressure Monitor (such as part number 176449-07).
What are the firmware and software revision requirements for operating the 143729-01 module?
The module requires 3500/77M Module Firmware Revision L (or later), along with 3500/01 Software Version 3.00, 3500/02 Software Version 2.30, and 3500/03 Software Version 1.30 or higher.
Where can users obtain official product support, datasheets, and commercial price quotes for the Bently Nevada 143729-01?
Official technical documentation and manuals are available directly from Bently Nevada, while price quotations, stock availability, and global procurement support can be requested through authorized sales channels and commercial partners.