• Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      sales1@apterpower.com
      +86 181 0690 9650
      Request a

      Fast Quote

      Manufacturers
      ALL MANUFACTURERS
      • Please try to be as accurate as possible with your search.
      • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
      • We can't find any results for “”.
        Manufacturers
        sales1@apterpower.com +86 181 0690 9650
        Choose a manufacturer
        ALL MANUFACTURERS
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Ask our team:
        • Phone: +86 181 0690 9650
        • E-Mail sales1@apterpower.com

        • Lifecycle Status

          Discontinued / Obsolete by OEM
          Stocking hard-to-find obsolete diagnostic hardware, Apter Power provides fully tested Bently Nevada legacy modules to support the ongoing reliability of your vintage turbomachinery.

        133442-01

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The Bently Nevada 133442-01 is a dual-channel I/O module with internal terminations for the 3500/50M tachometer system, providing accurate speed and rotor monitoring with direct sensor integration.
        In Stock
        Ships by Thursday, October 29
        Fast Shipping Available
        Get a quick price for 133442-01
        Quantity
        *E-mail
        Company
        *Mobile
        *Content
        Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
        Get a Quote
        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 133442-01

        • Manufacturer:
          Bently Nevada
        • Part Number:
          133442-01
        • Product Family:
          3500 System
        • Product Type:
          I/O Module
        • Stock:
          1
        • Number of channels:
          Dual-channel (2-channel)
        • Rack Space Requirements:
          1 full-height rear slot
        • Outputs:
          Buffered outputs are available at the I/O module via Euro style connectors.
        • Signal:
          Each 3500/50M Tachometer Module accepts up to two transducer signals from proximity probe transducers or magnetic pickups.
        • Input signal range:
          +10.0 V to -24.0 V
        • Input impedance:
          20 k Ω (standard); 40 k Ω (TMR); 7.15 k Ω (Internal Barrier).
        • Power consumption:
          5.8 Watts, typical
        • 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%, non-condensing.
        • Weight:
          0.38 kg
        • Estimated shipping dimensions:
          2.4x11x24cm
        • Tariff Code:
          3917310000
        • 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 Upgrade Operating Environment

        Features:

        • Enables Precise Dual-Channel Speed And Rotor Monitoring
        • Integrates Internal Terminations For Simplified Wiring
        • Provides Buffered Outputs For Seamless Rack Integration
        The Bently Nevada 133442-01 I/O Module is designed for accurate and reliable signal acquisition in the 3500/50M tachometer system. Supporting dual-channel input, it receives signals from proximity probes or magnetic pickups to monitor shaft speed, rotor acceleration, and rotor direction. Unlike separate Keyphasor modules, 133442-01 integrates buffered outputs directly on the module, reducing the number of components required and simplifying system installation.

        Equipped with internal terminations, the 133442-01 eliminates the need for external terminal blocks, saving rack space and reducing wiring complexity. Input impedance is optimized for different configurations, with 20 kΩ standard, 40 kΩ for TMR setups, and 7.15 kΩ for internal barrier applications. The module consumes approximately 5.8 Watts and operates reliably in temperatures from -30°C to +65°C (-22°F to +150°F), with storage conditions ranging from -40°C to +85°C (-40°F to +185°F) and 95% non-condensing humidity.

        When installed in the 3500 rack, the 133442-01 occupies a single full-height rear slot and works seamlessly with the 3500/50M module to provide advanced monitoring features such as speed alarms, speed band alarms, zero-speed notifications, rotor acceleration alarms, and reverse rotation detection. Its dual-channel capability and integrated design make it ideal for industrial environments where compactness, flexibility, and high-accuracy monitoring are essential.

        The 133442-01 Bently Nevada I/O Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 133442-01 I/O 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.
        Bently Nevada 133442-01 I/O Module Specs

        General

        • Manufacturer GE / Bently Nevada
        • Model 133442-01
        • Condition New Original ready stock
        • Product Family 134938-01,3500/50M,133388-02
        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.
        • Turbine Unit Monitoring: Monitors the rotational speed (RPM), speed increment, and peak speed of steam turbines and gas turbines to prevent overspeed damage.
        • Keyphasor Signal Provision: Processes speed pulses into keyphasor signals and distributes them to vibration monitoring modules (e.g., 3500/42M) within the frame for phase analysis and synchronous sampling.
        • Zero Speed ​​and Reverse Rotation Monitoring: Monitors extremely low speeds or detects unexpected reverse rotation of the shaft system during turning gear operation or start-up/shutdown.
        • Space-Constrained Control Cabinets: The internal terminations design eliminates the need for external terminal blocks (ETB) rails, making it ideal for compact instrument cabinets.
        • Matching Installation: Must be installed on the back of the 3500 frame, directly opposite the 3500/50M tachometer main module in the front slot.
        • Wiring Method: The sensor cable (usually shielded three-wire or two-wire) connects directly to the green terminal block on the back of the module, without the need for intermediate adapters.
        • System Compatibility: 3500/50M Upgrade: It is an enhanced version of the 3500/50 (50M), supporting more advanced signal processing.
        • Redundancy Configuration: Supports use in a TMR (Triple Module Redundancy) framework, which typically requires three 3500/50M modules operating in parallel for maximum reliability.
        • Software Configuration: After installation, the 3500 Rack Configuration Software is required to set the sensor scaling factor (e.g., pulses per revolution), alarm threshold, and hysteresis.
        • Humidity: Maximum 95% relative humidity, non-condensing.
        • Vibration and Shock Resistance: Meets typical industrial machinery monitoring standards (e.g., API 670), capable of withstanding continuous vibrations around large pumps and compressors.
        • Hazardous Area Certification: North America: Class I, Division 2, Groups A, B, C, D.
        • International/European: ATEX/IECEx Zone 2 certification (requires corresponding isolation barriers or protective measures).
        Description
        The Bently Nevada 133442-01 I/O Module with internal terminations is engineered to serve as the primary interface between proximity probes or magnetic pickup sensors and the 3500/50M tachometer module. Mounted on the back of the 3500 frame, it receives up to two transducer signals per module and supplies buffered outputs via Euro-style connectors for accurate monitoring of shaft speed, rotor acceleration, and rotor direction. Compared to earlier or separate Keyphasor configurations, 133442-01 integrates this functionality directly, eliminating the need for an additional Keyphasor module.

        Each 133442-01 module accepts input voltages ranging from +10 V to -24 V and features input impedance tailored to configuration type: 20 kΩ standard, 40 kΩ for TMR setups, and 7.15 kΩ for internal barrier configurations. With typical power consumption of 5.8 Watts and operation in industrial temperatures from -30°C to +65°C (-22°F to +150°F), this module ensures reliable signal acquisition under demanding conditions. Storage tolerance extends from -40°C to +85°C (-40°F to +185°F) with 95% non-condensing humidity, making it suitable for a wide range of plant environments.

        The 3500/50M Tachometer Module, when paired with 133442-01, provides configurable monitoring including speed, rotor acceleration, zero-speed notification, reverse rotation detection, and speed band alarming. Peak hold capability allows tracking of maximum forward or reverse speeds and reverse rotation counts, providing operators with critical machine performance data. Compared to other tachometer interfaces, 133442-01 offers a streamlined, integrated design that combines dual-channel input handling, internal terminations, and buffered outputs in a compact one-slot solution.

        Integrated directly into the 3500 rack, 133442-01 occupies a single full-height rear slot and supports TMR configurations, ensuring redundancy and minimizing single-point failures. Its dual-channel capability and internal termination design reduce wiring complexity and installation costs while maintaining precise signal fidelity. Overall, 133442-01 delivers a robust, flexible, and high-accuracy solution for rotor and speed monitoring applications in critical industrial machinery.
        Alternative Names
        133434-01 133450-01 133442-O1 136188-02 288062-02 135473-01 135489-01 135489-03
        Technical notes
        The Bently Nevada 133442-01 is an I/O module with internal terminations for the 3500/50M Tachometer system, enabling dual-channel signal acquisition from proximity probes or magnetic pickups for precise rotor speed, acceleration, and direction monitoring. It integrates buffered Keyphasor outputs directly to the rack backplane, eliminating the need for a separate Keyphasor module.
        Exceptional Service

        Our Mission

        • 100% Satisfaction

          We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.

        • Trust Guaranteed

          Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.

        • Expertise

          Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

        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.
        VIEW ALL FAQS
        Why use 133442-01 instead of separate Keyphasor modules?
        133442-01 integrates buffered Keyphasor outputs directly, removing the need for additional modules while ensuring accurate signal conditioning.
        What is the input voltage range of 133442-01?
        The module accepts inputs from +10 V to -24 V, compatible with standard tachometer sensors.
        What is the input impedance of 133442-01?
        Input impedance is 20 kΩ standard, 40 kΩ in TMR setups, and 7.15 kΩ with internal barrier, depending on system configuration.
        What are the operating and storage conditions for 133442-01?
        Operating temperature is -30°C to +65°C (-22°F to +150°F); storage temperature is -40°C to +85°C (-40°F to +185°F) with up to 95% non-condensing humidity.

        You May Also Like

        Product Browsing History

        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01
        Bently Nevada 133442-01