The Yokogawa S9185FA Battery Pack Module is a dedicated backup power component designed for Yokogawa safety control systems such as SSC50S/D, SSC57S/D, and SSC60S/D controllers used in ProSafe-RS Safety Instrumented Systems. Its primary role is to maintain volatile memory in processor modules during power interruptions, ensuring that critical operational data and configuration parameters remain intact.
In safety-critical industrial environments, unexpected power loss can cause system downtime or data loss. The S9185FA battery pack provides reliable standby energy that preserves system memory and ensures a smooth restart of safety controllers once normal power is restored.
The module uses Lithium Thionyl Chloride (Li-SOCl₂) battery chemistry, known for its long shelf life, high energy density, and stable performance across wide temperature ranges. Designed for industrial automation environments, it offers dependable backup power and minimal maintenance requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa |
| Model | S9185FA |
| Module Type | Lithium Battery Pack Module |
| Battery Chemistry | Lithium Thionyl Chloride (Li-SOCl₂) |
| Nominal Voltage | 3.6 V |
| Battery Capacity | Approx. 4000 mAh |
| Energy Capacity | Approx. 18 Wh |
| Recommended Replacement | Every 3 years (≤30°C ambient temperature) |
| Operating Temperature | -20°C to +60°C |
| Application | Backup memory power for safety control processors |
| Compatible Systems | SSC50S/D, SSC57S/D, SSC60S/D safety control units |
| Installation Type | Internal battery pack assembly |
| Dimensions (L×W×H) | 263 × 58 × 28 mm |
| Weight | 0.2 kg |
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