{"product_id":"industrial-1022404-pc4-refractometer-circuit-board","title":"Industrial 1022404-PC4 Refractometer Circuit Board","description":"\u003cdiv\u003e\u003cp\u003eThe Liquid Solids Control 1022404-PC4 Refractometer Circuit Board is the PC-4 Refractometer Board used in Liquid Solids Control (LSC) process monitoring systems, most notably the Model 1022 Automatic Divert System, to process refractometer signals and provide measurement and control for monitoring dissolved solids in industrial liquid streams such as black liquor in kraft recovery boilers. This REV B PC-4 board interfaces with sensing heads and the central processor, and is designed for chassis-mounted installation in an industrial indoor environment with multi-pin connectors on a multi-layer printed circuit board. It is compatible with LSC Model 1022 Automatic Divert Systems and other refractometer-based monitoring equipment, and is commonly referenced as a PC-4 replacement; common replacements include the Liquid Solids Control PC-5 Signal Distribution Board and the CPU Board for Model 1022 Systems. Applications span pulp and paper, chemical processing, and process control industries where accurate solids measurement and fail-safe operation are critical, with use cases such as black liquor solids monitoring and divert actions triggered by unsafe low-solids conditions.\u003c\/p\u003e\u003c\/div\u003e","brand":null,"offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46250290282730,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-005.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/industrial-1022404-pc4-refractometer-circuit-board","provider":"GTG Hardware","version":"1.0","type":"link"}