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        Triconex 9761-210
        Triconex 9761-210
        Triconex 9761-210
        Triconex 9761-210
        Triconex 9761-210
        Triconex 9761-210
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        9761-210

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        The 9761-210 is a Triconex 16‑point current input termination panel for 0‑5 VDC analog input modules, featuring 250Ω precision resistors for current‑to‑voltage conversion and redundant 24V DC power with diode ORing.
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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
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        Technical specifications for 9761-210

        • Manufacturer:
          Invensys
        • Part Number:
          9761-210
        • Product Family:
          Triconex
        • Product Type:
          Input Termination Panel
        • Number of Points:
          16
        • Input Signal:
          0‑5 VDC (after conversion)
        • Current‑to‑Voltage Resistor:
          250Ω precision resistor (0.1% typical)
        • Current Limiting Resistor:
          180Ω series resistor per positive terminal
        • Power Supply:
          Redundant 24V DC with diode ORing
        • Modules Required per 32‑point AI:
          2 panels
        • Estimated shipping dimensions:
          13x10.7x7.5cm
        • Tariff Code:
          8537109090
        • 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 Certifications & Standards Compatibility

        Features:

        • Converts 4‑20 mA loop current to 1‑5 VDC for voltage‑input analog modules; uses 180Ω series resistor for current limiting per channel.
        • Supports two power supplies for high availability; if one supply fails, the other automatically takes over without interruption.
        • Works with 3700, 3700A, 3721, and 2770H modules; requires two termination panels per module (16 points each). 3721 range configurable via TriStation.
        The 9761-210 termination panel is designed to interface 4‑20 mA loop‑powered transmitters with Triconex analog input modules that accept voltage inputs (0‑5 VDC). Many common field devices – pressure transmitters, temperature transmitters, flow meters – output a 4‑20 mA current loop signal. However, some Triconex analog input modules (e.g., 3700A) accept only voltage inputs. The 9761-210 solves this mismatch by providing a precision 250Ω resistor on each input channel. When 4‑20 mA current flows through this resistor, it develops a voltage of 1‑5 VDC (using Ohm’s law: 4 mA × 250Ω = 1 V; 20 mA × 250Ω = 5 V).

        The 9761-210 is designed for high‑availability safety systems where loss of field power could cause a spurious trip. The panel accepts two independent 24V DC power sources (typically labeled PS1 and PS2). These sources are diode‑ORed on the positive power terminals. Under normal operation, both power supplies can be active, and the panel draws current from the supply with the higher voltage.

        The 9761-210 is specifically designed to work with Triconex 32‑point analog input modules: 3700, 3700A, 3721, and 2770H (HART interface). Since the 9761-210 has only 16 points, two termination panels are required for each 32‑point module – one panel for channels 1‑16 and another for channels 17‑32. The panel comes with two sets of adhesive labels: one labeled 1‑16 and one labeled 17‑32. The user applies the appropriate label to each panel to avoid confusion during wiring and troubleshooting. The 3721 module is configurable via TriStation software for either 0‑5 VDC or ±5 VDC input range.

        The 9761-210 Triconex Input Termination Panel may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

        Triconex 9761-210 Input Termination Panel Manuals, Datasheets,Drivers,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
        Triconex 9761-210 Input Termination Panel Specs

        General

        • Manufacturer Triconex
        • Model 9761-210
        • Condition New Original ready stock
        • Product Family 9662-610,9563-810,9771-210
        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.
        • Emergency Shutdown Systems (ESD): Captures high-consequence process variables (such as 4–20 mA loop pressure, flow, and level metrics) to instantly trigger automated process isolation or a localized safe-state shutdown when trip thresholds are breached.
        • Fire and Gas Systems (F&G): Consolidates telemetry from localized toxic/combustible gas sensors, flame detectors, and optical infrared monitors to coordinate massive plant mitigation protocols.
        • Burner Management Systems (BMS): Monitors critical parameters including fuel gas manifold pressure, air-to-fuel ratios, and atomizing steam conditions to guarantee flame safety across heavy utility boilers and industrial process furnaces.
        • High-Integrity Pressure Protection Systems (HIPPS): Deployed across high-pressure upstream oil and gas wellheads or pipeline distribution networks to provide millisecond-level pressure monitoring and avert catastrophic downstream overpressure incidents.
        • Functional Safety Standards: Certified for integration within processes up to Safety Integrity Level 3 (SIL 3), in full compliance with IEC 61508 and IEC 61511 frameworks.
        • Nuclear Qualification: Evaluated and approved under strict nuclear directives (including US NRC regulatory guides like RG 1.180), permitting its use in Class 1E safety-related applications within nuclear generating facilities.
        • Hazardous Area Ratings: Certified as a Nonincendive terminal assembly, satisfying Class I, Division 2, Groups A, B, C, and D safety requirements for installation in hazardous industrial atmospheres when properly enclosed.
        • Industrial Engineering Compliance: Meets API 670 directives for machinery protection loops and bears the CE Mark for robust electromagnetic compatibility (EMC), ensuring structural resilience against heavy RF and electrical noise.
        • DCS/SIS Platforms: Built for seamless electrical matching across legacy and active Tricon v9 through v10 system architectures.
        • I/O Module Adaptation: Interfaces with TMR (Triple Modular Redundant) Analog Input Modules that handle 0–5 VDC, non-commoned, differential inputs.
        • Signal Translation: The panel houses 16 high-precision, low-drift 250-ohm sensing resistors. These resistors accurately step down standard field 4–20 mA current signals into a clean 0–5 VDC input map required by the core processing modules.
        • HART Passthrough Support: Fully interoperable with HART-compatible analog input modules, ensuring real-time device diagnostics and device configuration files pass cleanly from the field transmitter to asset management systems.
        Description
        The 9761-210 is a termination panel for Triconex analog input modules, specifically designed for 0‑5 VDC signals. It has 16 points, each with a 250Ω precision resistor for current‑to‑voltage conversion (e.g., 4‑20 mA to 1‑5 VDC). Each positive terminal includes a 180Ω series resistor for current limiting. 

        When using the 9761-210, engineers can connect current loop signals to voltage‑input analog modules. The panel is compatible with 3700, 3700A, 3721, and 2770H modules. The 250Ω resistor converts 4‑20 mA to 1‑5 VDC. The 180Ω resistor current‑limits each positive terminal. The panel supports dual power supplies for redundancy. 

        The 9761-210 is listed in termination product tables for 32‑point analog input modules. It appears as a current input option for 3700A (0‑5 VDC) and 3721 (±5 VDC) modules. For the 3721 module, the input range is configurable via TriStation software. The panel is also compatible with the 2770H HART analog input interface module. The simplified schematic shows the 180Ω and 250Ω resistors in series with the input signal. 

        For legacy Triconex system expansions, the 9761-210 is a critical termination component. It is used with non‑commoned analog input modules. The panel is part of the Tricon v9–v10 systems. The document references the Field Terminations Guide for Tricon v9–v10 systems. 
        Alternative Names
        976I-210 9761-21O 9761 210 3805E 9662-610 9563-810 9771-210 4119A
        Technical notes
        The 9761-210 is a Triconex 16‑point current input termination panel for 0‑5 VDC analog input modules. It converts 4‑20 mA loop current to 1‑5 VDC using built‑in 250Ω precision resistors. Each positive terminal has a 180Ω series resistor for current limiting. The panel supports redundant 24V DC power supplies with diode ORing.
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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 does 9761-210 convert 4‑20 mA to voltage?
        Each input has a precision 250Ω resistor that converts 4‑20 mA to 1‑5 VDC. This allows voltage‑input modules (e.g., 3700A, 3721) to accept current loop signals. The 250Ω resistor is built into the termination panel, eliminating external resistors.
        Which modules are compatible with 9761-210?
        It is compatible with 32‑point modules: 3700 (0‑5 VDC), 3700A (0‑5 VDC), 3721 (±5 VDC), and 2770H (HART interface). For 32‑point modules, two 9761-210 panels are required – one for points 1‑16 and one for points 17‑32.
        Can 9761-210 be used with a ±5 VDC module?
        Yes. The 3721 analog input module can be configured via TriStation software for either 0‑5 VDC or ±5 VDC. The 9761-210 termination panel works with both ranges. Use the panel’s 250Ω resistor for current inputs; for voltage inputs, bypass the resistor.
        Does 9761-210 support dual power supplies?
        Yes. The panel supports redundant 24V DC power sources with diode ORing on the positive power terminals. If one power supply fails, the other automatically takes over. This ensures continuous operation of the field loop‑powered transmitters.

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