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      51199942-300

      Ni-MH Memory Backup Battery Pack
      In Stock
      Ships by Friday, November 6
      Fast Shipping Available
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Honeywell 51199942-300 is a Ni-MH Memory Backup Battery Pack. It supplies the RAM backup subsystem while the charger monitors battery health.

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      Technical specifications for 51199942-300

      • Manufacturer:
        Honeywell
      • Product Category:
        DCS Systems
      • Spare Part Number:
        51199942-300
      • Estimated shipping dimensions:
        12.1x7.1x5.1cm
      • Weight:
        0.26 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Battery chemistry:
        Ni-MH
      • Pack voltage:
        3.6 V
      • Minimum capacity:
        1100 mAh
      • Cell arrangement:
        3 cells
      • Low-voltage cutoff:
        3.4 V
      View as PDF Ask for Quote

      Information

      Overview Manuals Common Applications Product Precautions
      Honeywell 51199942-300 is a Ni-MH memory-backup battery pack for the Series C power system. It supplies the RAM backup subsystem while the charger monitors battery health.
      • Maintains RAM backup energy
      • Supports memory retention during supply loss
      • Is monitored by the charging circuit
      • Triggers battery health diagnostics

      51199942-300 installs with Series C power system, Battery charging circuit, BATTERYNOTOK diagnostic, Memory-retention circuit in an engineered Experion Series C power system configuration.

      The commissioning workflow covers installed-hardware matching, controlled start-up and functional verification for this ni-mh memory backup battery pack.

      Important Notice: Confirm the complete 51199942-300 marking, installed-system configuration, field connections and controlled functional test before commissioning or replacement.

      Apter Power 51199942-300 Manuals and Guides
      Apter Power 51199942-300 Product Technical Reference PDFHoneywell 51199942-300 Official Manual PDF
      The first document is an Apter Power model-specific technical reference. The second supports model-specific installation, configuration and engineering verification.
      C300 memory backupMaintains RAM backup energy
      Series C battery replacementSupports memory retention during supply loss
      Controller power maintenanceIs monitored by the charging circuit
      Battery-alarm troubleshootingTriggers battery health diagnostics
      Read the applicable Honeywell installation instructions before work. Verify 51199942-300 and the installed Experion Series C power system configuration.
      1Verify the complete 51199942-300 marking and the assigned Experion Series C power system position before field work.
      2Isolate the applicable power, network and field energy before disconnecting 51199942-300.
      3Use ESD controls and protect the keyed connectors of 51199942-300 during handling.
      4Record the installed wiring, jumpers, node or channel assignment before replacement.
      5Confirm Series C power system and Battery charging circuit against the approved system configuration.
      6Restore 51199942-300 under controlled conditions and review the product-specific diagnostics.
      7Complete a functional test for c300 memory backup before production release.

      Technical notes

      Observe battery polarity and the approved replacement procedure, then confirm BATTERYNOTOK returns to OK after the charging and diagnostic cycle.

      FAQ View All FAQ

      • Which diagnostics should be reviewed if the 51199942-300 Ni-MH Memory Backup Battery Pack stops performing its assigned system function?
        Check seating, the matched Series C power system, the condition of Battery charging circuit and the model-specific diagnostics before replacing more hardware.
      • Can the 51199942-300 Ni-MH Memory Backup Battery Pack used for Controller power maintenance be transferred to another Experion Series C power system position without engineering review?
        No. Confirm the hardware execution, connector scheme and approved Experion Series C power system configuration before transferring 51199942-300 to a different duty.
      • What evidence should be retained after the 51199942-300 Ni-MH Memory Backup Battery Pack returns to Battery-alarm troubleshooting service?
        Retain the physical identification, as-left wiring or configuration, final diagnostics and controlled functional-test result for 51199942-300.
      • Which Series C power system identity must be verified before fitting the 51199942-300 Ni-MH Memory Backup Battery Pack?
        Match the complete 51199942-300 marking, assigned Experion Series C power system position and installed Series C power system before work.
      • How should Battery charging circuit be isolated before disconnecting the 51199942-300 Ni-MH Memory Backup Battery Pack?
        Place the affected process in its approved maintenance state, isolate applicable energy and prove Battery charging circuit safe before disconnection.
      • What as-found wiring record is required for the 51199942-300 Ni-MH Memory Backup Battery Pack in C300 memory backup?
        Record terminal identity, polarity, shields, jumpers, cable tags and the as-found diagnostic state for 51199942-300.
      • Which Experion Series C power system configuration must be checked when commissioning the 51199942-300 Ni-MH Memory Backup Battery Pack?
        Verify the assigned channel, slot, node or interface and compare it with the approved Experion Series C power system configuration before enabling 51199942-300.
      • How can the 51199942-300 Ni-MH Memory Backup Battery Pack be function-tested for Series C battery replacement without disturbing the process?
        Use a controlled stimulus or limited command, observe the expected system indication and confirm the intended response while normal interlocks remain effective.
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