{"product_id":"yokogawa-sdv144-s33-prosafe-rs-digital-input-module","title":"YOKOGAWA SDV144-S33 ProSafe-RS Digital Input Module","description":"\u003ch2\u003eYOKOGAWA SDV144-S33 Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA SDV144-S33\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSDV144\u003c\/strong\u003e Digital Input Module, operates as a dedicated hardware component for contact signal acquisition within ProSafe-RS Safety Instrumented System (SIS) platforms. This module provides direct electrical interface for field-side no-voltage contacts, facilitating secure discrete input monitoring across safety-critical control loops.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSDV144\u003c\/td\u003e\n\u003ctd\u003eBase Model (16-channel, 24 V DC, module isolation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-S\u003c\/td\u003e\n\u003ctd\u003eStandard type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eSignal cable interface adapter; no explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3 compliance; temperature range -20 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSDV144-S33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYOKOGAWA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8.3 cm x 12.7 cm x 4.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e290 mA (5 V DC), 140 mA (24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003eNo-voltage contact (ON \u0026lt;= 1 kOhm, OFF \u0026gt;= 100 kOhm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 40 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e2 kV AC between input and system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSafety Instrumented System (SIS) Integrity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSDV144-S33\u003c\/strong\u003e integrates within the ProSafe-RS architecture to ensure fail-safe state execution during critical process events. The module supports triple modular redundancy (TMR) configurations or dual-redundant pairings, which maintain system availability despite localized hardware faults. Galvanic isolation between the field input and the system bus prevents common-mode noise propagation, while integrated diagnostic circuitry, including compatibility with SCB100 open-circuit and SCB110 short-circuit detection, ensures continuous loop health verification.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the SDV144-S33 compatible with hot-swapping during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports hot-swapping within the ProSafe-RS I\/O nest. However, users must ensure the redundant module is fully synchronized and in a healthy state before initiating the removal of the primary unit to prevent unintended safety trips.\u003c\/p\u003e\n\u003cp\u003eQ: How is signal integrity maintained in high-interference environments?\u003c\/p\u003e\n\u003cp\u003eA: The module adheres to ISA Standard G3 for environmental durability. For maximum signal integrity, users must utilize shielded field wiring and ensure that the cable shield is grounded at the designated module entry point to minimize electromagnetic coupling.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm the module suffix compatibility with the existing backplane and I\/O nest before insertion.\u003c\/li\u003e\n\u003cli\u003eVerify that the field wiring interface (Pressure clamp terminal or MIL cable) is rated for the specific signal levels and installation environment.\u003c\/li\u003e\n\u003cli\u003eAlign the prevention pin to ensure the module is keyed correctly to the intended slot, preventing improper mechanical insertion.\u003c\/li\u003e\n\u003cli\u003eSecure the module using the provided front-locking mechanism to ensure full electrical contact with the system bus.\u003c\/li\u003e\n\u003cli\u003ePerform a loop check to verify the \"ON\" resistance threshold (\u0026lt;= 1 kOhm) and \"OFF\" resistance threshold (\u0026gt;= 100 kOhm) under actual field conditions.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43624163803226,"sku":"SDV144-S33","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/88_c3f622cc-f323-44e9-92c1-977ca23d705d.jpg?v=1783580914","url":"https:\/\/www.spareoil.com\/products\/yokogawa-sdv144-s33-prosafe-rs-digital-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}