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        3700

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Triconex 3700 is a 32-point differential 0–5 VDC analog input module that digitizes DC process signals at 12-bit resolution for Tricon logic.
        In Stock
        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.
        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
        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 3700

        • Manufacturer:
          Invensys
        • Part Number:
          3700
        • Product Family:
          Triconex
        • Product Type:
          Differential Analog Input Module
        • Stock:
          1
        • Input points:
          32 differential
        • Voltage range:
          0 to 5 VDC
        • Input coupling:
          DC coupled
        • Architecture:
          TMR analog input
        • Channel isolation:
          Not isolated
        • Input update rate:
          55 ms
        • Resolution:
          12 bit
        • Accuracy:
          <0.15% of full scale, 0 to 60 °C
        • Input resistance:
          30 MΩ minimum, powered
        • Power-off resistance:
          30 kΩ typical
        • Common-mode rejection:
          -80 dB typical, DC to 100 Hz
        • Common-mode range:
          -12 to +12 V peak
        • Leg-to-leg isolation:
          200 kΩ typical
        • Normal-mode rejection at 8 Hz:
          -3 dB
        • Normal-mode rejection at 60 Hz:
          -17 dB
        • Normal-mode rejection at 120 Hz:
          -23 dB
        • Overrange protection:
          150 VDC / 115 VAC continuous
        • Current measurement option:
          0 to 20 mA with 250 Ω shunt
        • Module indicators:
          PASS / FAULT / ACTIVE
        • Color code:
          Yellow
        • Operating temperature:
          0 to 60 °C
        • Storage temperature:
          -40 to 85 °C
        • Relative humidity:
          5 to 95%, non-condensing
        • Installation environment:
          Industrial control enclosure
        • 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 Applications Performance & Efficiency Monitoring Environmental Ratings

        Features:

        • Acquires thirty-two differential 0–5 VDC signals.
        • Provides twelve-bit conversion with a 55 ms input update rate.
        • Uses TMR channel processing and supports online hot-spare replacement.
        This ordering code identifies the original 3700 voltage-input configuration, not the extended 3700A variant.

        The module converts multiple continuous process measurements for voted use by the Tricon main processors.

        A correct installation retains the input scaling, shunt arrangement, termination panel and common-mode boundaries of the existing loops.

        Availability is subject to Apter Power inventory and sourcing confirmation.
        Verified resources for Triconex 3700: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.
        • Collects 0–5 V measurements from conditioners and process transmitters.
        • Supports dense analog monitoring in emergency-shutdown and critical-control systems.
        • Replaces an installed 3700 input module while the documented hot-spare strategy is maintained.
        • The converter resolves each input with twelve-bit precision.
        • All thirty-two channels update on a documented 55 ms cycle.
        • Accuracy is specified below 0.15% of full scale from 0 to 60 °C.
        • Independent channel data is passed through triplicated input processing before control use.
        • Front indicators report PASS, FAULT and ACTIVE module conditions.
        • Diagnostic coverage permits operation with a single internal channel fault while maintenance is planned.
        • The analog-input module is designed for enclosed industrial Tricon installations.
        • Documented system operation extends to 60 °C ambient under the specified chassis conditions.
        • Non-condensing humidity and clean cabinet airflow protect low-level measurement stability.
        Description
        Triconex 3700 brings thirty-two differential 0–5 VDC measurements into a triplicated Tricon input architecture. Each channel is DC coupled and converted at twelve-bit resolution for voting and application processing. Thirty-two differential inputs are DC coupled and processed through the triplicated analog acquisition path before the controller votes the resulting data.

        The module suits dense voltage acquisition where channel-to-channel isolation is not required. Diagnostic routines monitor each internal leg so a single channel fault can be reported without immediately losing the complete module function. The module combines twelve-bit conversion with a defined update interval and common-mode rejection intended for stable low-level voltage measurements.

        Confirm that the installed hardware is 3700 rather than 3700A, preserve the 0–5 V scaling and use a termination assembly suited to the field signal method. Common-mode voltage and source grounding must remain inside documented limits. Current loops can be accommodated through the documented shunt arrangement, but channel grounding and source references must remain consistent across the cabinet.
        Alternative Names
        3700 Triconex 3700 Tricon 3700 Schneider Electric Triconex 3700 3700 Analog Input Module 3700 0-5 VDC Analog Input Module 3700 TMR Analog Input Module 3700 32-Point Analog Input Module
        Technical notes
        3700 inputs are differential but not isolated from one another; review common-mode voltage and source grounding before reconnecting transmitters.
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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 can the ordered version of 3700 be validated before shipment?
        The 3700 code specifies the 0–5 VDC thirty-two-point differential module; 3700A carries a separate extended-range distinction.
        What connected equipment must agree with 3700?
        Verify the keyed Tricon slot, termination assembly, shunt selection, signal grounding and common-mode range.
        Which process or cabinet function is served by 3700?
        It digitizes continuous voltage measurements for voted monitoring, interlock and shutdown calculations.
        How are stock and delivery expectations checked for 3700?
        Apter Power can confirm exact labeling, condition, available quantity and delivery planning for the 3700.
        What should be tested after another 3700 is installed?
        Preserve channel scaling and field references, compare the input database, and loop-check every point after the swap.
        Which technical files make a 3700 inquiry complete?
        Provide the module revision, chassis version, termination model, signal list, required quantity and destination.

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