{"product_id":"389-01-12-55-rosemount-ph-orp-sensor-general-purpose-emerson","title":"389-01-12-55 Rosemount pH\/ORP Sensor General Purpose Emerson","description":"\u003ch2\u003e\u003cstrong\u003eRosemount™ 389-01-12-55: General Purpose pH\/ORP Sensor for Tough Environments\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e Rosemount™ \u003cstrong\u003e389-01-12-55\u003c\/strong\u003e – a general purpose pH\/ORP sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Ranges:\u003c\/strong\u003e \u003cspan style=\"color: #e03e2e;\"\u003epH 0 to 14\u003c\/span\u003e and \u003cspan style=\"color: #e03e2e;\"\u003eORP -1500 to +1500 mV\u003c\/span\u003e cover most industrial fluids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e Operates from 32 to 185 °F (0 to 85 °C) for versatile use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Temperature Compensation:\u003c\/strong\u003e Active from 32 to 185 °F (0 to 85 °C).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Junction Reference:\u003c\/strong\u003e Resists poisoning ions like ammonia, chlorine, and sulfides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracking Resistant Glass:\u003c\/strong\u003e Extends sensor life in harsh chemical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eORP Electrode Material:\u003c\/strong\u003e Platinum provides stable oxidation reduction measurements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJunction Type:\u003c\/strong\u003e Ceramic junction ensures consistent reference potential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO-Ring Material:\u003c\/strong\u003e Viton® O-rings deliver superior chemical resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWetted Materials:\u003c\/strong\u003e Body and nut use polyester\/polycarbonate; fittings are 316 stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Connections:\u003c\/strong\u003e \u003cspan style=\"color: #e03e2e;\"\u003e1-in. MNPT front and rear facing\u003c\/span\u003e for flexible mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Thread:\u003c\/strong\u003e 1-in. NPT adapter for easy integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEasy Installation – Rosemount™ 389-01-12-55\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse the molded 1-in. MNPT threads for insertion, submersion, or flow-through setups.\u003c\/li\u003e\n\u003cli\u003eSelect the Variopol (VP8) cable option (Rosemount™ 389VP) for quick cable release.\u003c\/li\u003e\n\u003cli\u003eThis cable connection eliminates twisting during sensor removal or installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSmart Maintenance \u0026amp; Transmitter Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRosemount transmitters automatically recognize the \u003cstrong\u003e389-01-12-55\u003c\/strong\u003e pH sensor.\u003c\/li\u003e\n\u003cli\u003eCompatible transmitters: \u003cspan style=\"color: #e03e2e;\"\u003e56, 1056, 1057, and 1066\u003c\/span\u003e with integral SMART preamplifier.\u003c\/li\u003e\n\u003cli\u003eThe sensor stores pH calibration data for true “plug and play” field installation.\u003c\/li\u003e\n\u003cli\u003eYou can calibrate sensors in advance to save time on site.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ – Rosemount™ 389-01-12-55 Sensor\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can this sensor handle high pH applications?\u003c\/strong\u003e A: Yes, choose the optional glass electrode for high pH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Does the \u003cstrong\u003e389-01-12-55\u003c\/strong\u003e work with non-Rosemount transmitters?\u003c\/strong\u003e A: It works best with Rosemount 56, 1056, 1057, 1066, and 5081.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the cable replaceable without tools?\u003c\/strong\u003e A: The VP8 option allows tool-free cable release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the maximum pressure for submersion?\u003c\/strong\u003e A: Follow flow cell ratings: 90 psig maximum.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAuthor: Ubest Automation – your partner for precision process sensors.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e© 2026 Ubest Automation Limited. \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e All rights reserved.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e | Phone: \u003ca href=\"https:\/\/wa.me\/8618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e (Click to chat on WhatsApp)\u003c\/strong\u003e\u003c\/p\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":52073789128986,"sku":"389-01-12-55","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/389-01-12-55-1.jpg?v=1776049582","url":"https:\/\/www.ubestplc.com\/products\/389-01-12-55-rosemount-ph-orp-sensor-general-purpose-emerson","provider":"Ubest Automation Limited","version":"1.0","type":"link"}