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          For Triconex 3703E, Apter Power offers quotations, English technical information, and range-matching guidance.

        3703E

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        Triconex 3703E is a 16-point isolated TMR analog input module that converts selectable 0–5 VDC or 0–10 VDC differential signals for Tricon control processing.
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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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        Technical specifications for 3703E

        • Manufacturer:
          Invensys
        • Part Number:
          3703E
        • Product Family:
          Triconex
        • Product Type:
          Isolated TMR Analog Input Module
        • Stock:
          1
        • Selectable Ranges:
          0 to 5 VDC or 0 to 10 VDC, plus 6% overrange
        • Input Points:
          16 differential inputs
        • Channel Isolation:
          Isolated
        • Common-Mode Range:
          ±200 V peak
        • Resolution:
          12-bit
        • Update Time:
          50 ms
        • Accuracy:
          Less than 0.15% FSR at 0 to 60°C
        • Input Resistance:
          30 MΩ minimum
        • Power-Off Resistance:
          30 MΩ minimum
        • Common-Mode Rejection:
          -90 dB at 60 Hz minimum / -100 dB DC minimum
        • Leg-to-Leg Isolation:
          20 kΩ typical
        • 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 Range Selection Channel Isolation Conversion Termination

        Features:

        • Selects either 0–5 VDC or 0–10 VDC input operation.
        • Provides sixteen isolated differential measurement channels.
        • Combines 12-bit conversion with a 50 ms update interval.
        Triconex 3703E extends both voltage spans by six percent, giving the isolated measurement path controlled overrange above the nominal input limit.

        A plus-or-minus 200 V peak common-mode range separates field-potential differences from the differential value delivered to the converter.

        Triplicated channel results are supplied to the corresponding main processors, where mid-value selection determines the signal used by the control program.

        The Triconex 3703E Isolated TMR Analog Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Triconex 3703E Isolated TMR Analog Input 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.

        Selectable Voltage Configuration

        • Low Range: A 0 to 5 VDC span can be assigned to the module.
        • High Range: A 0 to 10 VDC span is also available.
        • Engineering Choice: The active range is selected through TriStation configuration.
        • Headroom: Both settings include six percent overrange.

        Isolated Differential Channels

        • Point Count: Sixteen differential inputs are separated by channel isolation.
        • Common Mode: The permitted range is plus or minus 200 V peak.
        • Input Loading: Powered input resistance is at least 30 MΩ.
        • Leg Coupling: Typical leg-to-leg isolation is 20 kΩ.

        Triplicated Analog Conversion

        • Resolution: Each channel uses 12-bit analog-to-digital conversion.
        • Refresh: Converted input data is updated every 50 ms.
        • Accuracy: Error stays below 0.15 percent of full scale from 0 to 60°C.
        • Calibration: Multiple internal references support automatic channel correction.

        Field-to-Backplane Signal Route

        • Termination: Isolated field signals land on the specified external termination panel.
        • Cable Path: A dedicated cable carries the sixteen channels to the Tricon backplane.
        • Mechanical Key: Module keying distinguishes the matching chassis position.
        • Processor Delivery: Each measurement channel sends data to its corresponding main processor.
        Description
        Triconex 3703E is a sixteen-point isolated TMR analog input module for selectable 0 to 5 VDC or 0 to 10 VDC differential signals in a Tricon system. Both ranges include six percent overrange.

        Every field point on Triconex 3703E is isolated and supports a common-mode range of plus or minus 200 V peak. The isolation structure separates the differential measurements while retaining the specified input resistance and rejection characteristics.

        Conversion in Triconex 3703E uses 12-bit resolution and refreshes the full input set every 50 ms. Accuracy remains within 0.15 percent of full scale from 0 to 60 degrees Celsius across both selectable voltage spans.

        Three independent measurement channels in Triconex 3703E deliver separate results to the corresponding Tricon main processors for mid-value selection. Multiple internal reference voltages support automatic calibration of the measurement paths.

        The isolated field signals for Triconex 3703E enter through the assigned external termination panel and matching backplane cable. Mechanical keying aligns the module with the intended chassis position.
        Alternative Names
        3703E Triconex 3703E Tricon 3703E 3703-E 3703 E Analog Input Invensys Triconex 3703E Triconex 3703E AI Module Triconex 37O3E
        Technical notes
        Triconex 3703E provides sixteen isolated differential analog inputs with selectable 0–5 VDC and 0–10 VDC ranges.
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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
        When should the 0–10 V range be selected on Triconex 3703E?
        Select the Triconex 3703E 0–10 V setting only when the connected transmitter and TriStation channel configuration use that span.
        What should be reviewed before connecting a high common-mode signal to Triconex 3703E?
        Confirm that the field circuit remains within the Triconex 3703E ±200 V peak common-mode limit and the differential signal stays inside the selected range.
        How does channel isolation affect field wiring for Triconex 3703E?
        The sixteen Triconex 3703E points are isolated, but each differential pair still must land on the assigned termination-panel terminals.
        Why might Triconex 3703E be selected instead of a non-isolated Tricon analog input?
        Triconex 3703E provides individually isolated differential inputs for circuits that require separation while retaining triplicated conversion.
        What timing should be considered when Triconex 3703E monitors a changing voltage?
        A control design using Triconex 3703E should account for its 50 ms input update interval.
        How are the three Triconex 3703E measurement results used by the controller?
        Each Triconex 3703E channel sends its conversion to the corresponding main processor, where mid-value selection determines the control input.

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