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Bently Nevada 3500/25 149369-01
Bently Nevada 3500/25 149369-01
Bently Nevada 3500/25 149369-01
Bently Nevada 3500/25 149369-01
Bently Nevada 3500/25 149369-01
Bently Nevada 3500/25 149369-01
· Product image is representative; revision or series may vary. Contact us to request a specific version.

3500/25 149369-01

Enhanced Keyphasor Module
In Stock
Ships by Thursday, July 9
Fast Shipping Available

Product Information:

The 3500/25 149369-01 is an enhanced keyphase module manufactured by Bently Nevada. It is a half-height, dual-channel plug-in card designed specifically for the 3500 series mechanical protection system to provide keyphase reference and speed data.

The module receives raw electrical signal input from machine-mounted sensors (such as proximity probes or magnetic pickups) and tracks when these sensors align with a physical reference slot or keyway on the rotating shaft.

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Technical specifications for 3500/25 149369-01

  • Manufacturer:
    Bently Nevada
  • Product Category:
    TSI System
  • Spare Part Number:
    3500/25(149369-01+135473-01)
  • Estimated shipping dimensions:
    12 x 2.44 x 25.6 cm
  • Weight:
    0.34 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
  • Inputs Power Consumption:
    3.2 Watts typical
  • Input Impedance:
    21.8 k Ω minimum
  • Speed/ Frequency Signal Accuracy:
    Specified at +25°C (+77°F)
  • Output Impedance:
    504 Ω maximum buffered output impedance
  • Keyphasor Transducer Power Supply:
    -24 Vdc, 40 mA maximum per channel
  • Storage Temperature:
    -40°C to +85°C
  • Product Type:
    Enhanced Keyphasor Module
  • Category Series:
    3500 Series
  • Hysteresis:
    User-selectable from 0.2 to 2.5 Volts
  • I/O Modules:
    1 full-height rear slot
  • Stock:
    120

Alternative Names

3500/25 149369-01 35OO/25 I49369-OI 35OO/25 I49369-OI 135473-01 3500/25 135473-01 I35473-OI 3500/25-01-03-00 3500/25-02-03-00 125800-01 3500/25 125800-01 126648-01 125800-02

Information

Overview Manuals Main Features Environmental Limits

Features:

  • 3500/25 Enhanced Keyphasor Module
  • Bently Nevada Machinery Condition Monitoring
  • The 3500/25 Enhanced Keyphasor Module is a half-height, two-channel module
The 3500/25 Enhanced Keying Module is a half-height, dual-channel module used to provide keying signals to monitoring modules in the 3500 rack. This module receives input signals from proximity probes or magnetic pickups and converts them into digital keying signals to indicate when the keying marker on the axis coincides with the keying sensor. The 3500 mechanical protection system can receive up to four keying signals in normal configuration and up to eight keying signals in paired configuration.

The Enhanced Keying Module is an improved version of the 3500 system. Compared to the previous design, it offers more powerful keying signal processing capabilities while remaining fully compatible with existing keying modules in terms of form factor, size, and functionality, and can be used in legacy systems. Keying module PWA 125792-01 has been completely replaced by the updated 149369-01 module.

The 3500/25 149369-01 Bently Nevada Enhanced Keyphasor Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 3500/25 149369-01 Enhanced Keyphasor Module 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.
This isolated keyed phase I/O module is designed for applications where:
 
keyed phase signals are connected in parallel to multiple devices and require isolation from other systems, such as control systems. This isolated I/O module is designed for magnetic pickup applications but is also compatible with Proximitor* applications, providing isolation for Proximitor* applications as long as an external power supply is available. The primary purpose of this I/O module is to measure shaft speed, not phase. While this module can also perform phase measurements, it introduces a slightly higher phase shift compared to non-isolated I/O modules.
Operating Temperature: -30°C to +65°C (-22°F to +150°F)
when used with Keyphasor I/O Module other than the Internal Barrier
version. 0°C to +65°C (32°F to +150°F) when used with Keyphasor Internal Barrier I/O Module (Internal Termination).
StorageTemperature: -40°C to +85°C (-40°F to +185°F)
Humidity: 95%, non-condensing

Technical notes

As the core timing and speed reference gateway of the 3500 mechanical protection system, this is a half-height dual-channel signal processing unit, fully backward compatible, and a replacement for the older 125792-01 module. It specifically receives non-contact pulses from field eddy current proximity probes or electromagnetic probes, precisely conditioning and converting them into digital keyed phasor pulses perfectly matched to the shaft rotation indicator.

Ask our team:

  • How does 3500/25 149369-01 improve phase accuracy compared to legacy Keyphasor modules?
    The 3500/25 149369-01 incorporates enhanced signal conditioning, adaptive thresholding, and advanced edge-detection algorithms, significantly reducing phase jitter and timing uncertainty. This ensures superior repeatability and precision in phase reference generation, particularly under variable speed and transient operating conditions.
  • In what way does 3500/25 149369-01 support advanced diagnostic functions such as orbit and polar plots?
    By providing a stable and high-fidelity Keyphasor reference, 3500/25 149369-01 enables accurate time-domain synchronization across vibration channels, which is critical for generating precise orbit plots, polar plots, shaft centerline diagrams, and phase-resolved vibration analyses in connected monitoring and diagnostic systems.
  • What redundancy or fault-tolerance capabilities are associated with 3500/25 149369-01?
    The 3500/25 149369-01 is designed for high-availability systems and supports redundant module configurations within the 3500 rack, allowing continuous operation and diagnostic continuity even in the event of module failure or maintenance intervention.
  • What diagnostic and self-monitoring features are integrated into 3500/25 149369-01?
    The 3500/25 149369-01 includes comprehensive self-diagnostic routines that continuously monitor input signal validity, module health, and internal timing references, with status reporting available through the 3500 system interface to support predictive maintenance and fault isolation.
  • How does 3500/25 149369-01 enhance system integration with monitoring and control platforms?
    The 3500/25 149369-01 provides standardized, deterministic Keyphasor outputs that integrate natively with 3500 monitoring modules, System 1 software, and plant control systems, ensuring consistent data alignment across protection, monitoring, and analytics layers.
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Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.