The Yokogawa S9548FA represents a mission-critical power backup solution engineered for CENTUM distributed control architectures. Built on proven nickel-metal hydride chemistry, this rechargeable battery module safeguards process data integrity and system availability during grid disturbances, planned maintenance windows, or emergency shutdowns across refineries, chemical manufacturing, and utilities infrastructure.
Designed for operators managing high-stakes industrial processes, the S9548FA eliminates single points of failure in control system power delivery. Its hot-swappable architecture and 500+ cycle lifespan reduce total cost of ownership while maintaining compliance with safety instrumented system (SIS) requirements for continuous operation.
With field-proven compatibility across CENTUM CS1000 and CS3000 platforms, this battery module delivers consistent 3.6V output to preserve configuration databases, alarm logs, and real-time trending data—ensuring zero data loss during transient power events.
→ Extended Operational Lifespan: 500+ charge/discharge cycles reduce replacement frequency by 3-5 years compared to disposable lithium cells, lowering maintenance budgets and minimizing system downtime.
→ Zero-Downtime Replacement: Hot-swap capability allows battery exchange during live operations without interrupting process control loops or triggering safety system trips.
→ Enhanced Safety Profile: Ni-MH chemistry eliminates thermal runaway risks associated with lithium-ion alternatives, meeting stringent hazardous area classification requirements (Class I Div 2 compatible).
→ Environmental Compliance: Rechargeable design reduces hazardous waste generation by 80% versus single-use batteries, supporting ISO 14001 environmental management objectives.
→ Predictable Performance: Stable voltage output across 0°C to +50°C operating range ensures reliable memory retention in both climate-controlled control rooms and harsh field enclosures.
✓ Refinery Process Control: In crude distillation units and catalytic crackers, the S9548FA maintains controller memory during brief power sags, preventing loss of cascade control tuning parameters that would otherwise require hours of recommissioning.
✓ Chemical Batch Manufacturing: Pharmaceutical and specialty chemical facilities rely on the S9548FA to preserve recipe data and batch tracking information during utility power transfers, ensuring FDA 21 CFR Part 11 audit trail continuity.
✓ Power Generation Stations: Combined-cycle plants use this battery module to sustain turbine control system logic during black-start sequences, enabling faster grid restoration after outages.
✓ Water Treatment Facilities: Municipal and industrial wastewater systems depend on uninterrupted SCADA data logging—the S9548FA bridges power gaps during storm-related outages to maintain regulatory compliance reporting.
| Specification | Value |
|---|---|
| Part Number | S9548FA |
| Chemistry Type | Nickel-Metal Hydride (Ni-MH) |
| Nominal Voltage | 3.6V DC |
| Rated Capacity | High-capacity design (contact for mAh rating) |
| Cycle Durability | 500+ full charge/discharge cycles |
| Operating Temperature | 0°C to +50°C (32°F to 122°F) |
| Storage Temperature | -20°C to +60°C |
| Platform Compatibility | CENTUM CS1000, CS3000, CS3000 R3 |
| Installation Method | Hot-swappable module (no tools required) |
| Dimensions | Compact DIN-rail mountable form factor |
| Weight | Approximately 100g |
| Certifications | UL, CE, RoHS compliant |
Selection Criteria: Choose the S9548FA when your CENTUM system requires backup power for controller CPU modules, communication cards, or field control units. Verify compatibility with your specific hardware revision by cross-referencing Yokogawa's battery compatibility matrix (available upon request). For systems operating in extreme temperatures beyond 0-50°C, consult our engineering team for thermal management solutions.
The S9548FA incorporates intelligent charge management circuitry that interfaces with CENTUM power supply modules to optimize charging profiles based on ambient temperature and battery age. This adaptive charging extends service life by preventing overcharge stress while ensuring full capacity availability during critical events.
For facilities implementing predictive maintenance programs, the battery's voltage and internal resistance can be monitored through CENTUM diagnostic tools, enabling condition-based replacement scheduling rather than fixed-interval changes. This data-driven approach reduces spare parts inventory costs while improving system reliability metrics.
Custom battery monitoring solutions are available for multi-cabinet installations, providing centralized visibility into backup power status across distributed control nodes through OPC UA or Modbus TCP interfaces.
Lead Time: Standard stock items ship within 3-5 business days. Custom configurations or bulk orders (10+ units) require 2-3 weeks for factory preparation.
Warranty Coverage: 12-month manufacturer warranty covering defects in materials and workmanship. Extended warranty programs available for critical infrastructure applications.
Technical Support: Access to Yokogawa-certified engineers for installation guidance, compatibility verification, and troubleshooting assistance via phone, email, or remote desktop support.
Documentation Package: Each unit includes installation manual, safety data sheet (SDS), certificate of conformity, and battery disposal guidelines compliant with local environmental regulations.
Q: How does the S9548FA battery integrate with existing CENTUM power supply modules?
A: The battery installs directly into the designated battery holder on Yokogawa power supply cards (e.g., APR51D, APR52D). No external wiring or configuration changes required—the system automatically detects and begins charging the new battery upon installation.
Q: What runtime capacity can I expect during a complete power outage?
A: Typical backup duration ranges from 30-90 minutes depending on controller CPU load and number of active I/O modules. For precise runtime calculations based on your system configuration, contact our application engineering team with your hardware bill of materials.
Q: Can this battery reduce energy consumption in my control system?
A: While the battery itself doesn't reduce operational energy use, its rechargeable design eliminates the recurring energy cost of manufacturing and shipping replacement disposable batteries—reducing your facility's carbon footprint by approximately 15kg CO2 per year per controller.
Q: What installation requirements must be met before deploying the S9548FA?
A: Ensure ambient temperature in the control cabinet remains within 0-50°C, verify power supply firmware supports Ni-MH charging profiles (consult Yokogawa documentation), and confirm battery holder contacts are clean and corrosion-free. Installation takes less than 2 minutes per module.
Q: Does the S9548FA support remote monitoring capabilities for predictive maintenance?
A: Yes—when paired with compatible CENTUM power supply modules, battery voltage and charge status can be accessed through system diagnostics. Third-party battery monitoring systems can also be integrated via analog output signals for centralized facility management platforms.
Protect your critical process control infrastructure with proven Yokogawa battery technology. Contact our industrial automation specialists for pricing, compatibility verification, and volume discounts on multi-unit orders. Same-day technical consultation available for urgent replacement requirements.
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