Product Overview

The Honeywell 51199942-300 is a high-reliability Ni-MH rechargeable backup battery pack specifically designed for the C300 Process Controller within the Experion PKS (Process Knowledge System) architecture. This essential power component ensures the preservation of critical volatile memory (RAM) and control strategy data during a total loss of primary system power. By providing an uninterruptible energy source to the controller's memory circuit, the 51199942-300 prevents the loss of crucial configuration parameters and real-time database values, facilitating a rapid and safe recovery of the Distributed Control System (DCS) once power is restored.

Essential Hardware Parameters

Note: The provided source text incorrectly mentioned vibration sensing; the 51199942-300 is strictly a high-capacity electrochemical storage unit for C300 controllers.

• Model Identification: 51199942-300

• Chemistry Type: Nickel-Metal Hydride (Ni-MH)

• Nominal Voltage: 3.6V DC

• Rated Capacity: 3000mAh

• System Series: Experion PKS Series C

• Module Compatibility: Honeywell C300 Controller

• Mass: 0.26 kg

• Physical Dimensions: 12.1 x 7.1 x 5.1 cm

• Retention Time: Engineered to sustain controller memory for extended downtime periods

• Environmental Protection: Sealed cell construction for industrial cabinet deployment

Industrial Use Cases and Asset Protection

In Continuous Process Industries such as Oil & Gas and Chemical Refining, the 51199942-300 is a vital safeguard against unplanned shutdowns. If the primary power supply to the C300 controller fails, this battery pack instantly engages to hold the "live" state of the process in memory. This prevents the controller from reverting to a blank state, which would otherwise require a time-consuming manual reload of the entire control strategy from the server, significantly reducing Mean Time to Repair (MTTR).

Within Power Generation and Utility Plants, these batteries are part of a proactive maintenance program. Because the 51199942-300 is a rechargeable unit, it is constantly topped up by the controller's internal charging circuit during normal operation. This ensures that the system is always prepared for emergency power loss, protecting the synchronized control logic required for complex turbine and boiler operations.

For Data Integrity and Regulatory Compliance, maintaining the battery health of a DCS is non-negotiable. In pharmaceutical and food manufacturing, a loss of memory during a batch cycle can lead to the total loss of a product run due to missing audit trail data. The 51199942-300 provides the necessary bridge to ensure that even during electrical interruptions, the controller’s history and event logs are preserved, supporting both operational continuity and strict compliance with industry safety standards.