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3706A
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Product Information
Product Describe
3706A
32 differential, DC coupled
50 ms, maximum
Thermocouple Analog Input Module
32 differential, DC coupled
50 ms, maximum
Thermocouple Analog Input Module
Technical specifications for 3706A
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Product Model3706A
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Product ParametersAnalog Input Module
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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Estimated Shipping Size2.2x40.8x40cm
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ManufacturerInvensys
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Weight2.2 kg
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TypeTMR
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Number of input signals32 differential, DC coupled
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Input update rate50 ms, maximum
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Thermocouple types supportedJ, K, T
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Input resistance (load)22 MΩ (DC), typical
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Common mode range±10 VDC max
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Leg-to-leg isolation200 KΩ, typical
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Input point protection110 VAC, continuous
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Reference junction compensation range32°-140°F (0°-60°C)
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Diagnostic indicatorsPASS, FAULT, ACTIVE
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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What is the 3706A？+The Triconex 3706A is a specialized, triple-modular redundant (TMR) thermocouple analog input module for high-integrity safety instrumented systems.
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What is the primary function of the 3706A module?+The 3706A is a Thermocouple/mV Analog Input Module. It accepts standard millivolt-level signals from field thermocouples and converts them into precise digital values for safety and control logic
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Does the 3706A module support HART protocol?+No, the 3706A is designed strictly as a thermocouple input. For standard analog input with HART communication, Triconex offers distinct HART Interface Modules.
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Can a 3706A module be replaced while the system is running?+Yes. Thanks to the system's architecture, individual I/O modules can be removed and replaced online without interrupting the safety system or shutting down the plant.
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Product
MORE INFORMATION
Overview
Manuals
Technical notes
Product Applications
Field Wiring and Shielding Best Practices
Features:
- Triple Modular Redundant (TMR) Architecture
- 32 Differential DC-Coupled Input Channels
- Multi-Type Thermocouple Support with Software Selection
- 16-Bit Resolution with 0.125°C/Count Scaling
Each thermocouple input module isprogrammable to support one thermocouple type, selected from J, K and Tfor standard thermocouple inputmodules and from J, K, T and E for isolated thermocouple input modules.The isolated module allows users toselect upscale or downscale burnoutdetection with the TriStation software.For non-isolated modules, upscale ordownscale burnout detection dependson the field termination selected.
The 3706A Triconex Thermocouple Analog Input Module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Triconex 3706A Thermocouple Analog Input Module 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.
Triplicated temperature transducersresiding on the field termination panelsupport cold-junction compensation.Each channel of a thermocouple inputmodule performs auto-calibration usinginternal precision voltage references.On the isolated module, a faulting coldjunction transducer is annunciated by acold-junction indicator on the frontpanel.
Each module performs completeongoing diagnostics on each channel. Failure of any diagnostic on anychannel activates the Fault indicator,which in turn activates the chassisalarm signal. The module Fault indicator merely reports a channel fault, nota module failure. The module continuesto operate properly with as many as twofaulty channels.
- Emergency Shutdown Systems (ESD):Triggers plant trip on dangerous thermal events
- Burner Management Systems (BMS):Monitors flames, tube temps & fuel limits in heaters/furnaces
- Fire and Gas Detection Systems (FGDS):Detects high-heat/flame via physical temp mapping
- Turbine Control Systems (TCS):Exhaust/bearing/casing temps for high-temp trips
- Petrochemical and Oil Refineries:Critical pipe, column & furnace monitoring
- Power Generation Facilities:Gas/steam turbines & HRSGs: permissive logic
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Wire Matching: Run dedicated thermocouple extension wires that exactly match the alloy type directly to the ETP terminal blocks.
Torque Compliance: Strip field wires according to manual limits and tighten the removable screw terminal blocks using the specific manufacturer torque limits.
Shield Grounding: Terminate wire shields exclusively at a single ground reference point inside the marshalling cabinet to eliminate ground loops.
Signal Separation: Route all weak thermocouple signal bundles through distinct wire ducts separated away from high-voltage motor controls or AC distribution paths.
- What Happens Next
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Get the quote now Write Email to: INFO@AMIKON.CNEmail confirmation You will get an email confirming that we have received your enquiry.Dedicated Account Manager One of our team will be in touch to confirm your part(s) specification and condition.Your quote You will receive a comprehensive quote tailored to your specific needs.Need Moore Help? Get fast and efficient help from our experienced sales or customer service teams.
- Delivery and Payment
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Delivery
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International delivery available
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Warranty
All parts new original are covered by Amikon 12 month warranty
Returns
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Payment options
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For more information, please visit our dedicated payments page.
- Why Choose Amikon Limited?
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When it comes to industrial automation, reliability, speed, and trust matter. At Amikon Limited, we go beyond just supplying parts — we deliver confidence.
- ● Extensive Inventory Reach: Nearly 1 million automation parts at your fingertips, including legacy and obsolete models.
- ● 20+ Years of Expertise: Trusted by engineers, project managers and government companies worldwide for our professional service.
- ● Quality You Can Trust: Each unit is strictly inspected by the warehouse staff to ensure product quality
- ● Fast Global Shipping: We help you minimize downtime with express logistics worldwide.
- ● 1-Year Warranty Available: Peace of mind with every purchase backed by one year warranty guarantee.
Whether you're maintaining legacy systems or building future-ready projects, Amikon Limited is your dependable partner in precision and performance.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN