{"product_id":"s9185fa-yokogawa-prosafe-rs-safety-control-unit-battery-pack","title":"S9185FA | Yokogawa ProSafe-RS Safety Control Unit Battery Pack","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa S9185FA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as the primary backup power source for Yokogawa ProSafe-RS Safety Control Units, including the SSC50S and D-series hardware. This high-density lithium battery pack preserves volatile memory and system configuration data during main power interruptions. By maintaining critical CPU parameters, the S9185FA ensures the safety system resumes operation immediately upon power restoration without requiring manual reconfiguration or data recovery.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe S9185FA utilizes advanced chemistry to provide stable long-term voltage for safety-critical controllers:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYokogawa\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eChemistry:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNon-rechargeable Lithium Thionyl Chloride (\u003cspan class=\"math-inline\"\u003e$Li-SOCl_2$\u003c\/span\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.6 V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBattery Model:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eER6V-compatible cell\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-20°C to +60°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReplacement Cycle:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEvery 3 years (when operated at temperatures\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\u0026lt; 30°C$\u003c\/span\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.13 kg (0.29 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Energy Density:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Lithium Thionyl Chloride (\u003cspan class=\"math-inline\"\u003e$Li-SOCl_2$\u003c\/span\u003e) chemistry provides a flat discharge curve and exceptional energy density. This ensures the battery maintains a consistent 3.6V output throughout its service life, protecting sensitive CMOS RAM from data corruption due to voltage drops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtreme Thermal Resilience:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe S9185FA operates across a wide temperature spectrum from -20°C to +60°C. This robustness allows for installation in remote instrument enclosures where environmental control may fluctuate, ensuring the safety controller remains protected in both arctic and tropical climates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLong-Term Shelf Life:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe low self-discharge rate of the cell allows for extended storage before installation. This minimizes inventory turnover costs for maintenance teams who stock the S9185FA as a mission-critical spare part.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Plug-in Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYokogawa fits the S9185FA with a keyed connector specific to the SSC50S and D-series control units. This design prevents polarity errors during installation and allows technicians to replace the battery pack in narrow cabinet spaces without specialized tools.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Yokogawa S9185FA battery pack brand new?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We supply the S9185FA strictly as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eequipment. We prioritize fresh manufacturing dates to ensure you receive the maximum possible service life from the lithium chemistry.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow often must I replace the S9185FA battery?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnder standard operating conditions (\u003cspan class=\"math-inline\"\u003e$\u0026lt; 30°C$\u003c\/span\u003e), Yokogawa recommends a replacement period of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3 years\u003c\/strong\u003e. High-temperature environments accelerate the chemical depletion; therefore, we suggest more frequent inspections if your control room temperatures consistently exceed 35°C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace this battery while the Safety Control Unit is powered on?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Most ProSafe-RS control units allow for battery replacement while the system remains energized by the main power supply. This prevents the loss of memory during the swap. Always refer to your specific SSC50S or D-series hardware manual for exact live-replacement procedures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the storage requirements for spare S9185FA packs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStore the S9185FA in a cool, dry place away from direct sunlight. To maximize shelf life, maintain storage temperatures between 15°C and 25°C. Avoid storing lithium batteries near flammable materials or high-heat sources.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52542738661685,"sku":"S9185FA","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/S9185FA.jpg?v=1775555150","url":"https:\/\/www.5gplc.com\/products\/s9185fa-yokogawa-prosafe-rs-safety-control-unit-battery-pack","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}