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        • Lifecycle status

          Active / Available from OEM
          Apter Power supplies verified Bently Nevada 3500 Series hardware to ensure reliable thermal monitoring, protect critical rotating equipment, and prevent unexpected plant downtime.

        3500/61 136711-02

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The Bently Nevada 3500/61 136711-02 is a versatile RTD/TC I/O module with internal barriers and terminations, supporting 1–6 temperature channels for reliable integration in 3500 rack systems.
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        Ships by Thursday, October 29
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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.
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        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 3500/61 136711-02

        • Manufacturer:
          Bently Nevada
        • Part Number:
          3500/61 136711-02
        • Product Family:
          3500 System
        • Product Type:
          Temperature Module
        • Stock:
          1
        • Inputs Signal:
          Accepts from 1 to 6 RTD or TC transducer signals
        • Input Impedance:
          10 MΩ for each lead input
        • Power Consumption:
          Nominal consumption of 9 watts
        • Operating Temprature:
          0°C to +65°C (32 °F to +150 °F)
        • Monitor Module:
          1 full-height front slot
        • I/O Modules:
          1 full-height rear slot
        • Weight:
          0.98 kg
        • Estimated shipping dimensions:
          2.5x18.5x24.2cm
        • 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 Applications Communication & Connectivity Diagnostics & Protection

        Features:

        • Six-Channel Temperature Monitoring with RTD and Thermocouple Input Support
        • Provides Recorder Outputs for Each of Its Six Individual Channels
        • Functions Identically to the 3500/60 with the Added Benefit of Channel Recording Capability
        The 3500/61 136711-02 serves as a dedicated temperature monitoring module within the 3500 rack, providing six channels of temperature monitoring and accepting both Resistance Temperature Detector (RTD) and Thermocouple (TC) temperature inputs. The 3500/61 136711-02 conditions these inputs and compares them against user-programmable alarm setpoints to enable real-time temperature oversight and early warning functionality. The 3500/61 136711-02 and the 3500/60 deliver identical core monitoring functionality, however the 3500/61 136711-02 uniquely provides recorder outputs for each of its six channels while the 3500/60 does not. The 3500/61 136711-02 has been designed to integrate seamlessly within the 3500 rack architecture and supports flexible input configuration through dedicated I/O module variants.

        The 3500/61 136711-02 performs essential temperature measurement functions for machinery protection applications, and is a critical component of the monitoring path, directly affecting the accuracy and reliability of thermal condition assessment across the entire monitor system. One 3500/61 136711-02 module occupies a single full-height slot in the rack and is installed in the standard monitor slots alongside other 3500 series modules.

        For Triple Modular Redundant (TMR) applications, the 3500 System requires three 3500/61 136711-02 temperature monitor modules installed adjacent to each other in groups of three. In addition to standard single module operation, the TMR configuration also performs dual voting mechanisms. The 3500 TMR temperature monitoring system executes redundancy validation using the internal circuitry specified in the monitor options. Using this method, the redundant monitoring system continually cross-checks the outputs of all three 3500/61 136711-02 modules. If the system detects a discrepancy indicating that one 3500/61 136711-02 module is no longer providing accurate readings (outside configured tolerance levels), it will automatically employ voting logic to ensure accurate operation, avoid single-point failures, and place an event in the System Event List.

        The 3500/61 136711-02 Bently Nevada Temperature Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 3500/61 136711-02 Temperature 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 3500/61 136711-02 Temperature Module Specs

        General

        • Manufacturer Bently Nevada
        • Model 3500/61 136711-02
        • Condition New Original ready stock
        • Product Family 3500/61,3500/60,133908-01
        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.
        • Machinery Protection: Primarily used to monitor radial and thrust bearing metal temperatures in accordance with API 670 standards.
        • Process Monitoring: Tracks critical process variables such as compressor suction/discharge temperatures, steam temperatures, and motor stator temperatures.
        • Critical Environments: Deployed in high-risk sectors including oil & gas, petrochemicals, and power generation.
        • Digital Communication: While the 3500/61 itself processes signals, it communicates rack data (measured values and statuses) to external systems (PLCs/DCS) via a 3500/91 or 3500/92 Communication Gateway.
        • Protocols: Supports standard industrial protocols including Modbus (Serial/TCP) and proprietary Bently Nevada protocols for configuration and condition monitoring.
        • Recorder Outputs: Unlike the 3500/60, the /61 version provides six individual 4-20 mA recorder outputs (proportional to full-scale) for direct connection to external strip chart recorders or data loggers.
        • Software Interface: Seamlessly connects to System 1 Condition Monitoring software for advanced diagnostic HMI and trend analysis.
        • Alarm Logic: Features user-programmable Alert and Danger setpoints for each of the six channels, adjustable from 0 to 100% of full-scale with 0.13% accuracy.
        • Self-Diagnostics: Continuously monitors the health of the module and its connected transducers. It can automatically suppress channel operation if a failure is detected to prevent false trips.
        • Triple Modular Redundant (TMR): Supports TMR configurations where monitors are installed in groups of three. This utilizes voting logic to ensure accurate operation and eliminate single-point failures in critical shutdown applications.
        • Status Indicators: Front-panel LEDs (OK, TX/RX, and Bypass) provide immediate visual feedback on module operation and communication status.
        Description
        The Bently Nevada 3500/61 136711-02 module provides flexible temperature monitoring by accepting 1 to 6 RTD or TC transducer signals. Users can program the module via the 3500 Rack Configuration Software to perform RTD or TC measurements, or a combination of both, depending on the application requirements. The module draws a nominal 9 watts of power and features an input impedance of 10 MΩ per lead, ensuring accurate and stable signal measurement.

        This I/O module supports a variety of configurations, including non-isolated RTD/TC and TC isolated versions. The TC isolated version provides 250 Vdc channel-to-channel isolation to protect against external interference, while the non-isolated version can be configured for RTD, TC, or a mixture of inputs. It occupies one full-height front slot for the monitor module and one full-height rear slot for I/O modules in the 3500 rack.

        The module includes status indicators for operational clarity: the OK LED indicates proper module operation, the TX/RX LED signals communication with other 3500 rack modules, and the Bypass LED shows when the module is in bypass mode. Its operating temperature range is 0°C to +65°C (32 °F to +150 °F), with a storage range of -40°C to +85°C (-40 °F to +185 °F), making it suitable for industrial environments.

        When deployed in a Triple Modular Redundant (TMR) configuration, temperature monitors must be installed adjacent to each other in groups of three. In this setup, the system employs two types of voting to ensure accurate operation and mitigate single-point failures, enhancing system reliability for critical machinery monitoring applications.
        Alternative Names
        35OO/61 136711-O2 3500/6I I367II-02 3500/61 136711-0Z 3500-61 136711-02 350061 13671102 3500 61 136711 02
        Technical notes
        The Bently Nevada 3500/61 136711-02 accepts resistance temperature detector (RTD) and thermocouple (TC) inputs and can be seamlessly configured via the 3500 rack configuration software. Depending on the selected I/O modules, users can choose between a non-isolated RTD/TC version (for mixed input types) or an isolated TC version, the latter providing 250 Vdc inter-channel isolation to eliminate external interference. Furthermore, the 3500/61 supports a Triple Module Redundancy (TMR) architecture; when installed in a group of three adjacent modules, the system employs advanced voting logic to ensure maximum reliability and eliminate single points of failure, providing robust temperature regulation and alarm setpoint monitoring capabilities for industrial environments.
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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
        How many channels does the Bently Nevada 3500/61 136711-02 support?
        It supports 1 to 6 temperature channels for RTD or TC inputs.
        Can the 3500/61 136711-02 be configured to support both RTD and TC inputs simultaneously?
        Yes, it can measure RTD, TC, or a combination of both using the 3500 Rack Configuration Software.
        What is the input impedance of the 3500/61 136711-02?
        The input impedance is 10 MΩ per lead.

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