{"product_id":"yokogawa-s9548fa-battery-pack","title":"Yokogawa S9548FA Battery Pack","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa S9548FA\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eS9548FA\u003c\/strong\u003e Battery Pack, operates as a dedicated hardware component for continuous memory backup power supply within Yokogawa system controller racks. It delivers stable direct current auxiliary voltage to preserve volatile CPU SRAM memory states, system clock structures, and controller execution parameters during main power interruptions.\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\u003eS9548FA\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\u003e0.80 kg (Shipping Weight: 2.00 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 mm x 40 mm x 125 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eAuxiliary power supply cell (Output: Nominal DC battery bus voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eBattery Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Application\u003c\/td\u003e\n\u003ctd\u003eController memory backup and RTC maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDedicated controller chassis battery slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCasing Construction\u003c\/td\u003e\n\u003ctd\u003eIndustrial-grade enclosed metal\/polycarbonate housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCold Junction Compensation and DCS Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eIn distributed control station nodes, the S9548FA maintains uninterrupted power to internal system registers that store active analog input calibration coefficients and cold junction compensation (CJC) reference tables. Channel-to-channel isolation circuits on connected thermocouple and 4-20 mA HART loop protocol I\/O modules depend on stable processor memory retention during power cycles. By maintaining voltage across the system backplane memory bus without millisecond drops, the module ensures zero parameter loss and prevents system recalibration requirements upon main AC\/DC power restoration.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the S9548FA battery pack be replaced while the control station remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Yes. Online replacement (hot-swapping) is fully supported provided primary backplane power remains active to maintain controller memory while the depleted battery unit is removed.\u003c\/p\u003e\n\u003cp\u003eQ: How should depleted S9548FA battery packs be handled prior to installation of a fresh unit?\u003c\/p\u003e\n\u003cp\u003eA: Disconnected battery packs must have their connector terminals insulated with non-conductive tape to prevent short circuits during removal and disposal according to local industrial chemical waste guidelines.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm that primary backplane power to the target controller subrack is active before removing an existing battery pack to prevent memory loss during the procedure.\u003c\/li\u003e\n\u003cli\u003eUnlatch the retaining clip on the battery housing slot and carefully pull the S9548FA out of the subrack chassis.\u003c\/li\u003e\n\u003cli\u003eInspect the replacement battery pack connector pins for any signs of surface oxidation or physical damage.\u003c\/li\u003e\n\u003cli\u003eAlign the S9548FA with the internal chassis guide rails and push firmly until the rear connector latches securely into the backplane receptacle.\u003c\/li\u003e\n\u003cli\u003eVerify that the system diagnostic LED indicates a normal battery status and clear any low-voltage battery alarms on the operator interface console.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52702958944536,"sku":"S9548FA","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/S9548FA_Cocoai_2a4936a9-075c-4d18-b9cd-1ec75f8518b0.jpg?v=1789718894","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-s9548fa-battery-pack","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}