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        3701/40 177896-05

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        The Bently Nevada 3701/40 177896-05 is the processor module for the ADAPT 3701 Machinery Dynamics Monitor. It is capable of performing intensive signal analysis on complex machinery.
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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 3701/40 177896-05

        • Manufacturer:
          Bently Nevada
        • Part Number:
          3701/40 177896-05
        • Product Family:
          ADAPT 3701 Series
        • Product Type:
          ADAPT Machinery Dynamics Processor Module
        • Stock:
          1
        • A/D Conversion:
          24-bit Sigma-Delta
        • Signal/Noise Ratio:
          110 dB @ 102.4 ksps
        • Bandwidth:
          0.0625 Hz 至 40 kHz
        • Maximum dynamic channels:
          Supports up to 12 dynamic vibration signal channels + 2 Keyphasor/speed channels
        • Max current:
          2.3 A (Simplex) / 3.0 A (Duplex)
        • Power Supply Requirements:
          +24 V DC nominal (18 to 36 V DC input range)
        • Pollution Degree:
          2
        • Operating temperature range:
          -30°C to +65°C (-22°F to 149°F);
        • Storage temperature:
          -40°C to +85°C (-40°F to 185°F)
        • Humidity:
          0% to 95% rH non-condensing
        • Altitude:
          < 2,000 m
        • Inrush current:
          < 3.0 A per module (duration < 5 ms)
        • Onboard Buffering(Network Disconnection):
          Stores up to 512 MB of alarm data and 512 MB of transient/event data
        • Vibration & Shock Resistance:
          Vibration: 5g @ 57–500 Hz (IEC 60068-2-6); Shock: 15g, 11 ms (IEC 60068-2-27)
        • Speed Range:
          1 to 120,000 rpm for dedicated Keyphasor/speed inputs; 1 to 10,000 rpm for auxiliary Proximitor Keyphasor inputs
        • Industrial Protocols:
          Modbus TCP/IP (Server), Ethernet Global Data (EGD), and System 1 proprietary protocol
        • 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 Connectivity Monitoring & Control Safety & Compliance

        Features:

        • 24-bit Sigma-Delta A/D conversion with 110 dB SNR at 102.4 ksps and 0.0625 Hz to 40 kHz processing bandwidth.
        • Supports up to 12 dynamic vibration/pressure channels plus 2 dedicated Keyphasor speed inputs per system.
        • Dual independent 10/100 BaseT Ethernet ports supporting Modbus TCP/IP, EGD, and System 1 software integration.
        The 3701/40 177896-05 is the main processor module for the ADAPT 3701 Machinery Dynamics Monitor, delivering real-time processing and central control capabilities.

        Designed for critical industrial applications, this unit performs advanced vibration processing, order tracking, and dynamic signal analysis on complex machinery such as gearboxes, turbines, and rolling element bearing systems.

        The module can be installed in either Simplex or Duplex redundant terminal bases and requires a nominal +24 V DC power input; ensure proper firmware and BNMC software configuration prior to commissioning.

        Availability, The Bently Nevada 3701/40 177896-05 is subject to availability and lead times confirmed 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.
        • Monitors radial vibration, axial position, and casing vibration on high-speed industrial turbomachinery.
        • Executes gear mesh frequency tracking and sideband spectral analysis on complex industrial gearboxes.
        • Processes high-frequency dynamic pressure signals for combustion monitoring on gas turbines.
        • Equipped with two physically independent 10/100 BaseT RJ45 Ethernet ports (Net A and Net B).
        • Natively supports Modbus TCP/IP Server protocol for direct connection to PLCs and DCS systems.
        • Supports Ethernet Global Data (EGD) for seamless interaction with GE control platforms and System 1 software.
        • Features high-precision 24-bit Sigma-Delta A/D converters with a static measurement accuracy within ±0.5% full scale.
        • Measures dedicated Keyphasor speed inputs from 1 to 120,000 rpm with phase resolution accuracy within ±1°.
        • Performs synchronous or asynchronous FFT spectral processing and orders (nX) vector tracking algorithms.
        • Certified for hazardous locations under CSA/NRTL Class I Div 2 Groups A-D and ATEX/IECEx Ex nA nC IIC T4 Gc.
        • Complies with CE mark, FCC Part 15 regulations, and ABS Marine Certification standards.
        • Meets Achilles Cyber Security Level 1 requirements to safeguard industrial automation network communications.
        Description
        The Bently Nevada 3701/40 177896-05 is a high-performance processor module engineered for machinery condition monitoring and over-vibration protection on rotating assets. As the central computing core of the ADAPT 3701 system, it can be installed directly near field skid machinery. Equipped with 24-bit high-resolution A/D converters and a high-speed digital signal processor (DSP), it executes real-time data acquisition and intensive signal analysis for radial vibration, axial position, casing absolute vibration, and dynamic pressure signals. The module seamlessly supports both Simplex and Duplex redundant terminal base configurations to deliver fully independent and continuous real-time protection logic.

        Optimized for complex industrial monitoring scenarios, the 3701/40 177896-05 performs advanced signal processing algorithms, including bandpass filtering, order tracking (nX vectors), position gap voltage monitoring, and synchronous or asynchronous spectral analysis tailored for gearboxes (gear mesh frequencies and sidebands) and rolling element bearings (outer race, inner race, cage, and ball pass frequencies). Multi-color LED status indicators on the front panel—including Module OK, Protection Fault, Attention, Alert, Danger, and Network Link—provide real-time diagnostic visibility into asset health and module status.

        For network integration and communications, the module features dual independent Ethernet ports that connect directly to Bently Nevada Monitor Configuration (BNMC) software and System 1 Evolution platforms. Native support for Modbus TCP/IP and Ethernet Global Data (EGD) protocols ensures smooth integration with PLCs, DCSs, and HMI control networks. Even during unexpected network outages, its built-in non-volatile storage reliably buffers up to 512 MB of alarm data and 512 MB of transient event data, guaranteeing zero loss of critical diagnostic information.
        Alternative Names
        3701/40 177896-05 3701/40 177896 05 370140 17789605 BN 3701/40 Processor Module Bently Nevada 177896-05 Bently Nevada 3701/40 177896-05 3701/40 177896-05 CPU Card 3701/40 ADAPT Processor Module
        Technical notes
        The 3701/40 177896-05 processor module provides independent vibration protection logic, 24-bit A/D acquisition, dual Ethernet ports, and event data buffering for ADAPT 3701 terminal bases.
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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 is the difference between Simplex and Duplex mode in the 3701/40 system?
        In Simplex mode, a single 3701/40 177896-05 module processes signals and performs protection logic on a Simplex terminal base. In Duplex mode, two 3701/40 modules operate in a redundant terminal base to provide continuous, fault-tolerant protection and dual communications to host systems.
        What industrial automation protocols and communications are supported by the Bently Nevada 3701/40 177896-05?
        The Bently Nevada 3701/40 177896-05 provides two independent physical RJ45 Ethernet ports per CPU module, supporting Modbus TCP/IP (Server mode), Ethernet Global Data (EGD) for GE controllers, and proprietary Ethernet protocols for BNMC configuration software and System 1 Evolution.
        In what machinery applications is the Bently Nevada 3701/40 177896-05 typically used?
        The Bently Nevada 3701/40 177896-05 is designed for intensive signal processing on complex rotating machinery, including gearboxes, planetary gearboxes, rolling element bearing (REB) machines, gas turbine combustion dynamic pressure monitoring, as well as conventional radial vibration and thrust position applications.
        Which system architectures and input cards are compatible with the Bently Nevada 3701/40 177896-05?
        The Bently Nevada 3701/40 177896-05 module is fully compatible with both 3701 Simplex and 3701 Duplex Terminal Bases. It works seamlessly alongside 3701 PAV (Prox/Accel/Velom), 3701 PAS (Prox/Accel/Seismoprobe), 3701 PoV (Positive Input), and the 3701 8-Channel Relay Output Module.
        What are the replacement requirements when swapping out a Bently Nevada 3701/40 177896-05 module?
        When replacing a Bently Nevada 3701/40 177896-05, ensure the power supply is isolated or safety procedures are followed. After inserting the replacement module into the terminal base, use the Bently Nevada Monitor Configuration (BNMC) software to upload and validate the specific hardware configuration and firmware version.
        How can I request a price quote for the Bently Nevada 3701/40 177896-05 processor module?
        You can submit an RFQ (Request for Quote) directly on our website or contact our sales department with your required quantity, target delivery timeframe, and project details to receive a competitive quotation for the Bently Nevada 3701/40 177896-05.

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