{"product_id":"yokogawa-sav144-s33-prosafe-rs-analog-input-module","title":"Yokogawa SAV144-S33 ProSafe-RS Analog Input Module","description":"\u003ch2\u003eYOKOGAWA SAV144-S33 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA SAV144-S33\u003c\/strong\u003e serves as the primary \u003cstrong\u003eSAV144\u003c\/strong\u003e Analog Input Module utilized to execute high-accuracy voltage measurements across CENTUM VP and ProSafe-RS platforms. The hardware processes 16 isolated signal channels, translating physical field voltage ranges into digitized process variables for safety instrumented systems and regulatory control networks. Internal conditioning components maintain high-impedance loads during operation to mitigate signal attenuation and secure real-time transmission over the system node interface backplane.\u003c\/p\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\u003eSAV144-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\u003eJapan\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\u003e125 mm (W) x 130 mm (D) x 248 mm (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.5 W (300 mA at 5 VDC system bus voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e16 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Input Range\u003c\/td\u003e\n\u003ctd\u003e1 to 5 VDC or 1 to 10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePermissible Input Range\u003c\/td\u003e\n\u003ctd\u003e±30 VDC maximum limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Power ON)\u003c\/td\u003e\n\u003ctd\u003e1 MΩ minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Power OFF)\u003c\/td\u003e\n\u003ctd\u003e100 kΩ minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e±4 mV (1 to 5 VDC range) \/ ±9 mV (1 to 10 VDC range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Response Time\u003c\/td\u003e\n\u003ctd\u003eLess than or equal to 5 ms detection threshold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eCENTUM VP, ProSafe-RS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Protection\u003c\/td\u003e\n\u003ctd\u003eISA G3 corrosion resistance conformal coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Channel-to-Channel Isolation Matrix\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture deploys comprehensive channel-to-channel isolation parameters to isolate adjacent measurement pathways from differential voltage spikes and localized ground loop disruptions. This structural arrangement interfaces with the 4-20 mA HART loop protocol when dropped across precision external conversion shunts, routing filtered data directly into the safety system registers. By maintaining complete electrical separation between individual signal inputs and the internal 5 VDC backplane logic, the module eliminates common-mode interference and cross-talk across the 16 measurement channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the shift in internal input impedance from 1 MΩ down to 100 kΩ during power-off states affect the active loop?\u003c\/p\u003e\n\u003cp\u003eA: When power to the SAV144-S33 drops out, the hardware impedance switches down to 100 kΩ. This drop increases the current load pulled from the attached field loops, meaning technicians must verify that field transmitters can source this current without over-ranging or suffering voltage collapse.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module monitor 24 VDC discrete switch contacts directly given its input configuration?\u003c\/p\u003e\n\u003cp\u003eA: No. While the permissible safety limit handles up to ±30 VDC without physical damage, the measurement converters are calibrated strictly for the high-precision 1 to 5 VDC and 1 to 10 VDC ranges. Standard 24 VDC digital input states will saturate the analog registers and register as out-of-scale faults.\u003c\/p\u003e\n\u003cp\u003eQ: What mechanisms govern dual-redundancy synchronization when two modules populate a single node slot?\u003c\/p\u003e\n\u003cp\u003eA: The node backplane connects both cards to redundant tracking pathways. The standby card continuously mirrors the configuration parameters and processes field inputs in parallel. If a diagnostic watchdog trips on the primary module, the system switches active bus arbitration to the standby module within the native cycle window without introducing signal drops.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Insertion Alignment:\u003c\/strong\u003e Align the card rails with the assigned slot within the Node Interface Unit chassis. Push the hardware home until the rear pin block seats into the backplane connector, then tighten the faceplate retention fasteners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Ground Terminal Configuration:\u003c\/strong\u003e Terminate all incoming signal cable braided shields directly to the centralized instrument functional earth rail. Keep individual drain wires short to prevent inductive noise pickup across the analog loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit and Path Separation:\u003c\/strong\u003e Route all 1-5 VDC and 1-10 VDC measurement cables inside low-voltage wiring ducts. Maintain a physical separation of at least 300 mm from high-voltage AC cables, motor control switches, and variable frequency drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Flow Verification:\u003c\/strong\u003e Ensure that the vertical cooling paths within the rack enclosure remain unobstructed. Verify that forced-air ventilation maintains ambient environment temperatures below the 60 deg C continuous operational threshold.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43698806554714,"sku":"SAV144-S33","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/664.jpg?v=1784689660","url":"https:\/\/www.spareoil.com\/products\/yokogawa-sav144-s33-prosafe-rs-analog-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}