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        Bently-Nevada,3500-50-133388-02
        Bently-Nevada,3500-50-133388-02
        Bently-Nevada,3500-50-133388-02
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        3500/50 133388-02

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The Bently Nevada 3500/50 133388-02 is a 2-channel tachometer module for precise monitoring of shaft speed, rotor acceleration, and rotor direction using proximity probes or magnetic pickups.
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        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.
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        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 3500/50 133388-02

        • Manufacturer:
          Bently Nevada
        • Part Number:
          3500/50 133388-02
        • Product Family:
          3500 System
        • Product Type:
          Tachometer Module
        • Stock:
          3
        • Input signal range:
          +10.0 V to -24.0 V.
        • Input Impedance:
          20 k Ω (standard); 40 kΩ (TMR); 7.15 kΩ (Internal Barrier).
        • Power Consumption:
          5.8 Watts, typical.
        • Output Impedance:
          550 Ω.
        • Transducer Power Supply:
          -24 Vdc, 40 mA maximum per channel.
        • Voltage Compliance:
          0 to +12 Vdc range across load. Load resistance is 0 to 600 Ω.
        • Storage Temperature:
          -40°C to +85°C (-40°F to +185°F).
        • Humidity:
          95%, non-condensing.
        • Rack Space Requirements:
          1 full-height front slot.
        • Weight:
          0.82 kg
        • Estimated shipping dimensions:
          2.5x25.5x24cm
        • 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 Specifications Use Cases Environmental Ratings Certifications & Standards

        Features:

        • Dual-Channel Tachometer Signal Processing with Independent Monitoring Capability
        • Integrated Overspeed Protection and Zero Speed Detection Functions
        • Compatible with Magnetic Pickups, Proximity Probes, and Optical Encoders
        The Bently Nevada 3500/50 133388-02 operates as a dedicated Tachometer Module within the 3500 rack, providing precise rotational speed measurement and critical machine protection. It continuously processes incoming pulse signals from various speed sensors and converts these inputs into accurate RPM data for real-time monitoring and alarm generation. Configurable alarm setpoints are standard with the 3500/50, and using the optional Keyphasor reference input enables phase-locked synchronization for advanced diagnostic applications. The 3500/50 133388-02 incorporates significant enhancements over earlier tachometer designs, including improved signal conditioning and expanded measurement range capabilities within the 3500 monitoring system.

        The 3500/50 provides essential speed monitoring functions critical to rotating machinery protection, and is a vital component of the safety instrumented system, directly affecting the proper detection of overspeed and underspeed conditions. One 3500/50 module occupies a single full-height slot in the rack and can be installed in any available monitor slot position (slots 1 through 14 in a standard 14-slot 3500 rack).

        For critical rotating equipment applications, the 3500/50 133388-02 supports dual-channel operation with independent configuration for each channel. In addition to standard speed measurement, the module performs continuous signal validation. The 3500/50 channel configuration executes validation using internal algorithms specified in the monitor options. Using this method, the tachometer module continually monitors the integrity of both sensor inputs. If the system detects that a primary sensor signal is no longer providing valid data (outside configured signal quality thresholds), it will automatically flag the channel as Not OK and trigger the appropriate system response, placing an event in the System Event List.

        The 3500/50 133388-02 Bently Nevada Tachometer Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 3500/50 133388-02 Tachometer 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 3500/50 133388-02 Tachometer Module Specs

        General

        • Manufacturer Bently Nevada
        • Model 3500/50 133388-02
        • Condition New Original ready stock
        • Product Family 3500/50,3500/50M,3500/50E,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.
        • Power Generation: Monitoring turbine and generator speeds to ensure safe operational limits.
        • Oil & Gas: Protecting critical compressors and pumps by detecting abnormal speed or reverse rotation.
        • Predictive Maintenance: Analyzing speed-related parameters to identify early signs of mechanical faults.
        • Keyphasor Conditioning: Supplying conditioned Keyphasor signals to the rack backplane, often eliminating the need for a separate module.
        • Specialized Monitoring: Configurable options for zero-speed notification, speed band alarming, and rotor acceleration monitoring.
        • Standard I/O Operating Temperature : -30°C to +65°C (-22°F to +150°F).
        • Internal Barrier I/O Operating Temperature : 0°C to +65°C (32°F to +150°F).
        • Storage Temperature: -40°C to +85°C (-40°F to +185°F).
        • Relative Humidity: Up to 95%, non-condensing.
        • Physical Protection: Features short-circuit and electrostatic discharge (ESD) protection on buffered outputs.
        • Hazardous Area Approvals: Options include ATEX/IECEx Zone 2 and CSA/NRTL/C Class 1, Division 2 (Zone 2).
        • Functional Safety: Part of the SIL 2-rated 3500 System for safety-instrumented functions.
        • Electromagnetic Compatibility (EMC): Meets various European standards including EN 61000-4-4 (Electrical Fast Transient) and EN 61000-4-5 (Surge Capability).
        Description
        The 3500/50 133388-02 Tachometer Module is a robust 2-channel module designed to accept inputs from 1-2 proximity probe transducers or magnetic pickups. It supports an input signal range of +10.0 V to -24.0 V, with input impedance options of 20 kΩ (standard), 40 kΩ (TMR), and 7.15 kΩ (Internal Barrier). Typical power consumption is 5.8 watts, and the module provides transducer power at -24 Vdc, 40 mA maximum per channel, ensuring stable operation for connected sensors.

        The 3500/50 133388-02 features multiple LED indicators for operational status: OK LED for normal operation, TX/RX LED for communication with other modules in the 3500 rack, and a Bypass LED. Each channel has a coaxial connector that is short-circuit and ESD protected, while buffered outputs are available via Euro-style connectors. Output impedance is 550 Ω, with voltage compliance from 0 to +12 Vdc across a load resistance of 0 to 600 Ω. Conditioned recorder outputs are supported from +4 to +20 mA, with signal conditioning specified at +25°C (+77°F).

        Designed for harsh industrial environments, the 3500/50 133388-02 operates reliably in temperatures from -40°C to +85°C (-40°F to +185°F) with 95% non-condensing humidity. Rack space requirements are 1 full-height front slot, making integration into the 3500 rack straightforward.

        Programmed through 3500 Rack Configuration Software, the 3500/50 133388-02 can be configured in four operational modes: speed monitoring with setpoint and speed band alarming, zero speed notification, rotor acceleration alarming, or reverse rotation notification. The 3500/50 can also supply conditioned Keyphasor® signals to the 3500 rack backplane, eliminating the need for a separate Keyphasor® module. Its peak hold feature stores the highest speed, highest reverse speed, or number of reverse rotations, which can be reset by the user for precise performance tracking.
        Alternative Names
        35OO/5O 133388-O2 3500/50 I33388-02 3500/50 1333BB-02 3500/50 133388-0Z 3500-50 133388-02 133442-01 136703-01 133434-01
        Technical notes
        When configuring the 3500/50 133388-02 for critical machinery protection, note that the input impedance must be matched to the sensor type (20 kΩ standard for proximity probes, 40 kΩ for TMR, or 7.15 kΩ for internal barrier applications) to ensure accurate signal validation and avoid false Not-OK channel status. Additionally, the module's ability to supply conditioned Keyphasor® signals directly to the backplane eliminates the need for a separate Keyphasor module, but the buffered output's 550 Ω impedance limits load resistance to a maximum of 600 Ω for maintaining 0 to +12 Vdc compliance.
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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.
        VIEW ALL FAQS
        What are the 3500/50 133388-02 input impedance options?
        20 kΩ standard, 40 kΩ for TMR, and 7.15 kΩ for Internal Barrier.
        What is the 3500/50 133388-02 typical power consumption?
        5.8 watts.
        Where is the 3500/50 133388-02 manufactured?
        Manufactured by Bently Nevada, USA.
        Can the 3500/50 133388-02 monitor rotor acceleration?
        Yes, one of its four configurable options includes rotor acceleration alarming.

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