{"product_id":"yokogawa-hhr-11f2a1-nickel-metal-hydride-backup-battery","title":"Yokogawa HHR-11F2A1 Nickel-Metal Hydride Backup Battery","description":"\u003ch2\u003eYokogawa HHR-11F2A1 Nickel-Metal Hydride Backup Battery\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa HHR-11F2A1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eHHR-11F2A1\u003c\/strong\u003e Ni-MH backup battery, operates as a dedicated memory retention supply for CPU RAM, RTC circuits, and configuration data within Yokogawa CS1000, CS-3000, and S9129FA controller systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHHR-11F2A1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eYokogawa CS1000 \/ CS-3000 \/ S9129FA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e~60 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e17.50 mm × 34.00 mm × 43.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eStandard ambient industrial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eInternal battery supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e2.4 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e1100–1500 mAh (depending on cell variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNi-MH (Nickel-Metal Hydride)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e2 × Small A or 4\/5A cells in series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eDedicated harness with keyed plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGap Voltage Validation (-10 VDC Targets)\u003c\/h3\u003e\n\u003cp\u003eIn Yokogawa DCS systems, backup batteries are validated against gap voltage thresholds to ensure proper retention of volatile memory. The HHR-11F2A1 maintains stable discharge characteristics, preventing voltage sag below critical RTC and RAM retention levels. This design minimizes cross-talk between adjacent circuits and ensures predictable rotor dynamics in turbine supervisory interfaces when integrated with Yokogawa controllers.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the HHR-11F2A1 be replaced with higher-capacity Ni-MH cells? A: Yes, many replacement packs use 1500 mAh cells to extend retention duration, provided connector and dimensions remain identical.\u003c\/p\u003e\n\u003cp\u003eQ: What is the primary function of this battery in Yokogawa systems? A: It supplies backup power to CPU RAM, RTC, and configuration registers during power loss.\u003c\/p\u003e\n\u003cp\u003eQ: Is hot-swap supported for this battery? A: No, replacement must be performed during controlled shutdown to avoid data loss.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect system power before replacing the battery to prevent volatile memory corruption.\u003c\/li\u003e\n\u003cli\u003eEnsure keyed connector orientation matches the designated motherboard socket.\u003c\/li\u003e\n\u003cli\u003eSecure harness routing to avoid mechanical stress or vibration-induced disconnection.\u003c\/li\u003e\n\u003cli\u003eMaintain ambient conditions within standard industrial ranges; avoid condensation.\u003c\/li\u003e\n\u003cli\u003eDispose of Ni-MH cells according to hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44139122098250,"sku":"HHR-11F2A1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/HHR-11F2A1_3.png?v=1788163142","url":"https:\/\/www.topbrandsplc.com\/products\/yokogawa-hhr-11f2a1-nickel-metal-hydride-backup-battery","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}