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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.
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.
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.
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.
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.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 3721
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Product Model3721
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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 Size49x45.3x6.8cm
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ManufacturerInvensys
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Weight2.85 kg
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Voltage0 to 5 VDC or -5 to +5 VDC1, + 6%
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No. of Input Points32 differential, DC-coupled
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Input Update Rate10 ms
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Resolution12 bits or 14 bits programmable
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Accuracy< 0.15% of FSR from 0° to 60° C
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Common Mode Rejection-85 dB (DC – 100 Hz)
Description
ANALOG INPUT MODULE
32 DIFFERENTIAL INPUTS
DC COUPLED
0-5 VDC OR -5-5 VDC
10 MS UPDATE RATE
12 OR 14 BITS PROGRAMMABLE
32 DIFFERENTIAL INPUTS
DC COUPLED
0-5 VDC OR -5-5 VDC
10 MS UPDATE RATE
12 OR 14 BITS PROGRAMMABLE
Information
Overview
Manuals
Technical notes
Product Applications
Hardware Setup & Mounting
Features:
- Triple Modular Redundant (TMR) Architecture
- High-Resolution Data Conversion
- Comprehensive Self-Diagnostics
- Hot-Swappable Capability
In TMR mode,one value is then selected using a midvalue selection algorithm to ensurecorrect data for every scan.Sensing of each input point isperformed in a manner that prevents asingle failure on one channel from affecting another channel. Each analoginput module sustains complete,ongoing diagnostics for each channel.Failure of any diagnostic on anychannel activates the Fault indicator forthe module, which in turn activates thechassis alarm signal.
The 3721 Triconex Analog Input Module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Triconex 3721 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.
The module’sFault indicator merely reports a channelfault, not a module failure—the modulecan operate properly with as many astwo faulty channels.Analog input modules support hotspare capability which allows onlinereplacement of a faulty module The analog input module requires aseparate external termination panel(ETP) with a cable interface to theTricon backplane. Each module ismechanically keyed for proper installation in a Tricon chassis.
- Emergency Shutdown (ESD):Monitors pressure/temp/feed to trigger safe plant-trip signals
- Fire & Gas (F&G) Monitoring:Connects directly to detectors; no extra trip amps needed
- Burner Management Systems (BMS):Safe startup/operation/shutdown for burners/boilers
- Turbomachinery Control:Anti-surge & safe interlocks for compressors/turbines
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.
Chassis Compatibility: The 3721 module is designed for use in Tricon v10.2 and later systems.
Module Insertion: Align the module with the intended slot and slide it firmly into the backplane. The mechanical keying ensures that only compatible analog input modules can be fully seated.
Hot-Swapping: For online repairs, you can perform a "hot-swap". Replace only one TMR leg at a time and wait for the system to verify the health of the new module before proceeding with further maintenance
FAQs
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What is the Triconex 3721？
+The Triconex 3721 Analog Input Module is a fault-tolerant module for safety and precision-critical industrial applications. -
What type of module is the Triconex 3721?
+It is a TMR (Triple Modular Redundant) differential analog input module. -
How does the TMR (Triple Modular Redundancy) system work for analog inputs?
+Each input point is sensed by three independent channels. The three values are then processed using a mid-value selection algorithm to ensure data integrity. A single failure on one channel does not affect the others.
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN