S9185FA | Yokogawa ProSafe-RS Safety Control Unit Battery Pack

Product Overview

The Yokogawa S9185FA functions 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.

Technical Specifications

The S9185FA utilizes advanced chemistry to provide stable long-term voltage for safety-critical controllers:

• Manufacturer: Yokogawa

• Chemistry: Non-rechargeable Lithium Thionyl Chloride ($Li-SOCl_2$)

• Nominal Voltage: 3.6 V

• Battery Model: ER6V-compatible cell

• Operating Temperature Range: -20°C to +60°C

• Replacement Cycle: Every 3 years (when operated at temperatures $< 30°C$)

• Weight: 0.13 kg (0.29 lbs)

• Condition: 100% Brand New and Original

Engineering Advantages

• High Energy Density: The Lithium Thionyl Chloride ($Li-SOCl_2$) 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.

• Extreme Thermal Resilience: The 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.

• Long-Term Shelf Life: The 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.

• Direct Plug-in Compatibility: Yokogawa 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.

FAQs

• Is this Yokogawa S9185FA battery pack brand new?

  Yes. We supply the S9185FA strictly as 100% Brand New and Original equipment. We prioritize fresh manufacturing dates to ensure you receive the maximum possible service life from the lithium chemistry.

• How often must I replace the S9185FA battery?

  Under standard operating conditions ($< 30°C$), Yokogawa recommends a replacement period of 3 years. High-temperature environments accelerate the chemical depletion; therefore, we suggest more frequent inspections if your control room temperatures consistently exceed 35°C.

• Can I replace this battery while the Safety Control Unit is powered on?

  Yes. 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.

• What are the storage requirements for spare S9185FA packs?

  Store 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.