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126615-01

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The Bently Nevada 126615-01 is a high-density I/O module with external terminations for the 3500/40M Proximitor monitor, delivering precise machinery protection and flexible signal management.
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Technical specifications for 126615-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    126615-01
  • Product Family:
    3500 System
  • Signal:
    Accepts from 1 to 4 proximity transducer signals
  • Power consumption:
    7.7 Watts, typical
  • Input Impedance:
    10 kΩ (Proximitor and acceleration inputs)
  • Output Impedance:
    550 Ω
  • Transducer Power Supply:
    -24 Vdc
  • Operating Temperature:
    -30°C to +65°C (-22°F to +150°F)
  • Storage Temperature:
    -40°C to +85°C (-40°F to +185°F).
  • Humidity:
    95%, noncondensing
  • Rack Space Requirements:
    1 full-height rear slot
  • Weight:
    0.36 kg
  • Estimated shipping dimensions:
    2.5x11x24.1cm
  • Tariff Code:
    6602000090
  • 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 Specifications Application Performance and Efficiency Safety

Features:

  • Accepts Multiple Proximity Transducer Signals For Accurate Machinery Monitoring
  • Features External Termination Design For Flexible Rack Cabling
  • Provides Reliable Operation Under Wide Environmental Conditions
The Bently Nevada 126615-01 is a dedicated I/O module for the 3500/40M Proximitor monitor, designed to introduce signals from field-mounted proximity transducers to the monitor’s mainboard. Its external termination interface allows connection through cables to termination blocks, supporting organized and efficient wiring within high-density racks.

This module supports four input paths, delivering precise signal conditioning for radial vibration, thrust position, eccentricity, and differential expansion measurements. It supplies -24 Vdc power to transducers and maintains input and output impedance levels suitable for accurate signal transmission.

Engineered for durability, the 126615-01 operates in extreme temperatures and high humidity environments while consuming minimal power. Installed in a single full-height rear slot, it ensures reliable performance for continuous machinery monitoring and protection without occupying excessive rack space.

The 126615-01 Bently Nevada Proximitor I/O Module with External Terminations may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 126615-01 Proximitor I/O Module with External Terminations Manuals,Datasheets,Link 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.
Bently Nevada 126615-01 Proximitor I/O Module with External Terminations Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 126615-01
  • Condition New Original ready stock
  • Product Family 126615-01C,149716-02,135489-01
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.
  • Critical Rotating Machinery Protection: Widely used for monitoring axial displacement, radial vibration, and eccentricity in steam turbines, centrifugal compressors, large fans, and water pumps, ensuring safe shutdown in case of abnormalities.
  • High-Density Cabinet Integration: Designed specifically for space-constrained control rooms. External terminal block (ET) design relocates complex field cabling to the side of the cabinet or dedicated terminal blocks, simplifying the space behind the rack.
  • Predictive Maintenance System: As the core of signal acquisition, it transmits real-time vibration data to System 1 software for analyzing bearing wear, misalignment, and rotor dynamic characteristics.
  • Harsh Industrial Environments: Suitable for industrial fields with extremely high requirements for continuous monitoring reliability, such as oil refining, petrochemicals, natural gas extraction, and large and medium-sized power plants.
  • Flexible External Wiring Design: Utilizing external terminal blocks, maintenance personnel do not need to operate in the narrow space behind the rack, significantly improving installation and troubleshooting efficiency.
  • High-precision signal conditioning: Supports 4 independent channels, maintaining static and dynamic measurement accuracy within ±0.33% of full scale, ensuring extremely high accuracy of monitoring data.
  • Multi-type sensor compatibility: Can simultaneously receive signals from eddy current sensors (Proximitor) or seismic sensors, enabling a single module to monitor multiple parameters.
  • Industrial-grade durability: Operating temperature range covers -30°C to +65°C, with excellent electromagnetic interference (EMI) immunity, ensuring stable operation in complex electrical environments.
  • API 670 standard compliance: Designed to fully comply with the American Petroleum Institute (API) 670 standard, the authoritative global standard for rotating machinery protection systems, ensuring absolute reliability of protection functions.
  • Hazardous area safety certification: When used with internal barriers, it complies with operating standards for hazardous explosion-proof areas such as Class I, Div 2, or Zone 2.
  • System self-diagnostic function: Equipped with real-time OK limit monitoring, it can automatically identify hardware faults such as sensor disconnection, short circuit, or signal out-of-range, preventing false system tripping.
  • Global mainstream certifications: Certified by multiple international safety and quality certifications such as CE, UL, and CSA, meeting the access and compliance requirements of major global industrial markets.
Description
The Bently Nevada 126615-01 is a dedicated I/O module designed specifically for the 3500/40M Proximitor monitor, enabling seamless integration with field-mounted proximity transducers. Unlike the standard 126632-01 TMR I/O module, the 126615-01 features external termination interfaces, allowing cables to connect to termination blocks installed elsewhere in the rack. This design reduces wiring congestion in high-density racks and simplifies maintenance compared to modules with direct backplane connections.

Equipped to accept signals from 1 to 4 Bently Nevada proximity transducers, the 126615-01 provides four precise input paths with an input impedance of 10 kΩ for proximitor and acceleration inputs, while output impedance is standardized at 550 Ω. It delivers -24 Vdc transducer power supply, supporting accurate signal conditioning for radial vibration, axial displacement/thrust position, eccentricity, and differential expansion measurements. Compared to the 126632-01, the 126615-01 optimizes signal routing and reduces potential interference from densely packed rack environments.

The module operates reliably under harsh conditions, with an operating temperature range of -30°C to +65°C (-22°F to +150°F), storage temperature from -40°C to +85°C (-40°F to +185°F), and tolerance for up to 95% non-condensing humidity. With typical power consumption of 7.7 watts, it fits in a single full-height rear slot, preserving valuable rack space while maintaining robust performance.

When paired with the Bently Nevada 3500/40M Proximitor monitor, the 126615-01 enables complete machinery monitoring and protection. Users can configure each channel via 3500 Rack Configuration Software for functions including radial vibration, thrust position, eccentricity, REBAM, and differential expansion. The module ensures continuous comparison of monitored parameters against alarm setpoints, providing essential information for both operations and maintenance personnel.

Overall, the Bently Nevada 126615-01 distinguishes itself from similar modules like the 126632-01 by combining precise signal acquisition with external termination flexibility, high-density rack compatibility, and reliable performance in extreme environmental conditions, making it a preferred choice for advanced machinery protection systems.
Alternative Names
125680-01 135489-04 149716-01 126615-02
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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.
How many transducer signals can the 126615-01 accept?
The module accepts 1 to 4 proximity transducer signals per input module, providing four precise input paths.
Why does the 126615-01 use external termination?
External termination allows cables to connect to blocks installed elsewhere in the rack, simplifying wiring management and reducing congestion compared to backplane-mounted I/O modules like the 126632-01.
What are the electrical specifications of the 126615-01?
It has an input impedance of 10 kΩ for proximitor and acceleration inputs, output impedance of 550 Ω, and provides -24 Vdc to power connected transducers.
How does the 126615-01 perform in extreme temperatures?
The module operates between -30°C to +65°C (-22°F to +150°F) and can be stored safely from -40°C to +85°C (-40°F to +185°F).