{"product_id":"hanna-bl931700-ph-mini-controller-4-20ma-output","title":"Hanna BL931700 | pH Mini Controller with 4–20 mA Output","description":"\u003cp\u003eThe Hanna BL931700 pH Mini Controller is designed for automated pH monitoring and chemical dosing in industrial process systems. It is suitable for water treatment plants, neutralization tanks, RO pretreatment, wastewater systems, food processing, chemical dosing panels, and process control applications where continuous pH control is required.\u003c\/p\u003e\n\u003cp\u003eThis compact panel-mounted controller measures pH from 0.00 to 14.00 and provides a selectable dosing relay for acid or alkaline correction. The 4–20 mA analogue output allows connection with PLCs, data loggers, chart recorders, and monitoring systems. Manual calibration through front-panel trimmers makes adjustment straightforward during operation and maintenance.\u003c\/p\u003e\n\u003cp\u003eFor Pakistani industries, the BL931700 is useful when manual pH checks are insufficient and continuous dosing control is required to protect process stability, ensure compliance with discharge requirements, and maintain equipment performance. Kamadi supplies Hanna process controllers for professional industrial water and chemical treatment applications.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompact panel-mounted pH controller\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMeasures pH from 0.00 to 14.00\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4–20 mA analog output for PLC or recorder connection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelectable acid or alkaline dosing control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManual two-point calibration\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAutomatic or manual dosing mode selection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for industrial pH process control\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eParameter: pH\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003epH Range: 0.00 to 14.00 pH\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003epH Resolution: 0.01 pH\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003epH Accuracy: ±0.02 pH at 25°C\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCalibration: Manual, 2-point through front-panel trimmers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDosing Control: Acid or alkaline dosing selectable\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDosing Mode: Automatic or manual switch selection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDosing Relay: Fuse-protected relay for dosing pump or valve control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnalogue Output: 4–20 mA for recorder, PLC, or data logger\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eElectrode Connection: Standard BNC pH electrode input\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstallation Type: Panel-mounted mini controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWastewater pH neutralization\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRO pretreatment pH control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eChemical dosing systems\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFood and beverage process water\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIndustrial effluent treatment\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003epH control panels and automation systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":45944254791937,"sku":"811410239","price":148000.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/5659\/1873\/files\/hanna_bl931700_mini_ph_controller_panel_mount_pakistan.jpg?v=1779224214","url":"https:\/\/kamadi.pk\/products\/hanna-bl931700-ph-mini-controller-4-20ma-output","provider":"Kamadi Pakistan","version":"1.0","type":"link"}