Invensys AH204600R002 Industrial Control Board

Invensys Chessell AH204600R002 is a two-channel input board designed for the Chessell 392 chart recorder, serving as the dedicated interface that routes external signals into the recorder’s data-logging system. The AH204600R002 part number identifies a legacy module that is discontinued by the manufacturer and is commonly referenced in catalogs as the input board for the 392 chart recorder. As an authentic Chessell/Invensys component, it appears in surplus and repair listings as a replacement part for aging installations that rely on the 392 recorder’s charting capabilities. Buyers sourcing AH204600R002 should verify compatibility with their specific recorder revision and plan for the realities of acquiring, maintaining, and supporting discontinued hardware in legacy process-control environments.