{"product_id":"yokogawa-aar145-s03-s1-rtd-pot-input-module","title":"Yokogawa AAR145-S03 S1 RTD\/POT Input Module","description":"\u003cp\u003eConfigured for temperature and resistance measurement in Yokogawa control systems, the \u003cstrong\u003eYokogawa AAR145-S03 S1\u003c\/strong\u003e (\u003cstrong\u003eAAR145\u003c\/strong\u003e RTD\/POT Input Module) provides direct physical\/electrical execution. This hardware component interfaces analog field instruments, such as resistance temperature detectors and potentiometers, directly with the controller backplane to digitize variable thermal and mechanical displacement data.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAAR145\u003c\/strong\u003e: Base RTD\/Potentiometer Input Module card architecture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S\u003c\/strong\u003e: Standard hardware type classification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Fixed configuration slot designator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\u003c\/strong\u003e: ISA G3 environmental protection coating combined with an extended operating temperature range profile (-20 to +70 deg C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS1\u003c\/strong\u003e: Hardware style revision indicator\u003c\/li\u003e\n\u003c\/ul\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\u003eAAR145-S03 S1\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.3 cm x 10.7 cm x 13 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax. 350 mA (5 V DC backplane draw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Types\u003c\/td\u003e\n\u003ctd\u003eRTD (Resistance Temperature Detector) \/ POT (Potentiometer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Current\u003c\/td\u003e\n\u003ctd\u003e1 mA (for RTD configurations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eRTD: +\/-150 mOhm; POT: +\/-0.2% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 150 Ohm per wire maximum allowance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Isolation\u003c\/td\u003e\n\u003ctd\u003e200 V AC for 1 minute duration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Isolation\u003c\/td\u003e\n\u003ctd\u003e500 V AC input-to-system (1500 V AC single card dielectric rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5-95 % RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; DCS Instrumentation Properties\u003c\/h3\u003e\n\u003cp\u003eThe module utilizes independent analog-to-digital processing loops to handle 16 distinct signal paths simultaneously. Channel-to-channel isolation safeguards the internal multiplexing hardware against voltage differentials across field grounding points, suppressing common-mode electrical interference. Temperature computations account for lead-wire resistance offsets, while integrated cold junction compensation strategies or direct three-wire resistance matching ensure linear tracking of sensor vectors.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the installation restrictions regarding mixed sensor types across the 16 channels?\u003c\/p\u003e\n\u003cp\u003eA: The AAR145-S03 allows per-channel configuration via the system software. RTD sensors and potentiometer inputs can be populated concurrently on the same card, provided the engineering software attributes match the physical wiring landing on each terminal block channel.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module react to a wire break or open-circuit condition on an active RTD channel?\u003c\/p\u003e\n\u003cp\u003eA: The module executes a upscale or downscale burnout drive depending on system programming parameters. When wire resistance exceeds the 150 Ohm physical threshold, the input channels register an out-of-bounds fault state, triggering an error flag across the system backplane interface.\u003c\/p\u003e\n\u003cp\u003eQ: What are the backplane load limitations when nesting multiple AAR145 modules within a single I\/O node?\u003c\/p\u003e\n\u003cp\u003eA: Each module demands up to 350 mA from the 5 V DC backplane supply. The total cumulative current consumption of all installed modules must remain beneath the aggregate capacity of the node power supply modules to prevent voltage sag conditions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Landing and Strain Relief:\u003c\/strong\u003e Maintain separation between low-voltage sensor lines and high-voltage power mains. Utilize shielded twisted-pair cables for all RTD\/POT runs and terminate the drain wires directly at the cabinet instrument ground strip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Enclosure Upkeep:\u003c\/strong\u003e Ensure the cabinet cooling or filtration infrastructure operates within parameters to prevent moisture buildup. The ISA G3 coating protects the inner circuitry from gas-phase chemical contamination, but liquid condensation will cause measurement drift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTightening and Wire Gauge Constraints:\u003c\/strong\u003e Confirm that field wiring leads do not exceed the 150 Ohm per-line resistance metric. Ensure terminal connections are torqued down securely to eliminate cold-junction variations or loose contact resistances at the terminal face.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43517846290522,"sku":"AAR145-S03","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/396._660f0edf-fb61-4484-b74e-df5f89c20f89.jpg?v=1781761473","url":"https:\/\/www.spareoil.com\/products\/yokogawa-aar145-s03-s1-rtd-pot-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}