This Yokogawa battery pack kit provides essential memory backup for Centum VP controllers. It includes the S9129FA lithium battery unit and a pre-wired connector assembly. Engineers can use this kit to replace depleted batteries during scheduled maintenance. Its comprehensive design simplifies field replacements and reduces system downtime significantly. The kit ensures reliable data retention during unexpected power interruptions.
Physical Dimensions and Component Configuration
The kit contains a battery pack measuring 3.2 inches in length and 2.7 inches in width. Its housing thickness reaches 0.8 inches for compact module installation. The complete kit weighs approximately 5.0 ounces for straightforward handling. A 2-wire harness extends 8.0 inches from the battery housing. This harness terminates in a polarized 4-pin JST connector for secure mating.
Battery Chemistry and Capacity Specifications
The pack employs high-grade lithium thionyl chloride cells for extended operational life. It delivers a nominal output voltage of 3.6 VDC for consistent memory support. The total capacity reaches 2400 mAh under standard discharge conditions. This capacity sustains memory retention for up to 5 years in typical applications. The lithium chemistry ensures stable voltage output throughout the entire service interval.
Connector Interface and Wiring Details
The included harness uses 22 AWG copper conductors for minimal resistance. The 4-pin JST connector features a positive locking mechanism for security. This connector mates directly with Centum VP CPU and I/O module sockets. The harness also includes a strain relief boot at the connector entry point. This boot prevents wire fatigue from repeated flexing during installation.
Installation Procedure and Compatibility
The kit serves as a direct replacement for original Yokogawa battery assemblies. It fits all Centum VP CPU modules and compatible I/O units. The polarized connector eliminates any possibility of reverse-polarity installation. A replacement interval label provides space for recording installation dates. This feature assists maintenance teams in tracking battery service life accurately.
Environmental Ratings and Storage Parameters
The battery operates reliably from -20 to 60 degrees Celsius ambient temperature. Its storage temperature range extends from -20 to 45 degrees Celsius. The unit withstands 95% non-condensing humidity for versatile industrial environments. These tolerances accommodate both indoor control rooms and sheltered field locations. The battery maintains its full capacity across the entire operating temperature spectrum.
Safety Approvals and Regulatory Compliance
The battery pack carries UN38.3 certification for safe transportation by air. It complies with RoHS and REACH directives for restricted substances. The unit meets IEC 62133 standards for lithium battery safety. A built-in current limiter prevents excessive discharge during short-circuit events. These safety features protect both equipment and maintenance personnel during replacements.
Technical Specifications Overview
| Parameter | Detail |
|---|---|
| Kit Model | S9400UK |
| Battery Model | S9129FA |
| Kit Type | Battery Pack with Harness |
| Chemistry | Lithium thionyl chloride |
| Nominal Voltage | 3.6 VDC |
| Capacity | 2400 mAh |
| Retention Life | 5 years (typical) |
| Connector | 4-pin JST, polarized |
| Harness Length | 8.0 inches |
| Conductor Size | 22 AWG |
| Dimensions | 3.2 x 2.7 x 0.8 inches |
| Weight | 5.0 oz |
| Operating Temperature | -20 to 60 °C |
| Storage Temperature | -20 to 45 °C |
| Certifications | UN38.3, CE, RoHS, IEC 62133 |
Details
| Weight | 0.4 kg |
|---|---|
| Dimensions | 120 × 52 × 125 mm |
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