{"product_id":"yokogawa-exa-ph402-converter-for-ph-orp-analyzer-transmitter-o2","title":"YOKOGAWA EXA PH402 CONVERTER FOR PH ORP ANALYZER TRANSMITTER (O2)","description":"\u003ch3 data-section-id=\"nq8ynu\" data-start=\"0\" data-end=\"18\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"19\" data-end=\"517\"\u003eThe Yokogawa EXA PH402 pH\/ORP Converter is used in industrial liquid analysis systems to measure pH and ORP values and convert \u003ca href=\"https:\/\/plgautomation.com\/collections\/sensors-measurement\"\u003esensor \u003c\/a\u003esignals into standardized outputs for process control. Commonly installed in chemical plants, water treatment facilities, and industrial process systems where continuous pH monitoring is required. Maintenance teams, OEMs, and system integrators use this converter for process monitoring, replacement of legacy analyzers, and maintaining accurate liquid analysis.\u003c\/p\u003e\n\u003ch3 data-section-id=\"plkbhx\" data-start=\"519\" data-end=\"538\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"539\" data-end=\"1032\"\u003eThe Yokogawa PH402 is used in industrial environments to monitor and control pH and oxidation-reduction potential (ORP) in liquid processes. It is commonly deployed in wastewater treatment, chemical processing, food and beverage production, and power generation systems. The converter integrates with pH\/ORP sensors to provide real-time measurement, diagnostic feedback, and control outputs, ensuring stable process conditions and regulatory compliance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"68ulmp\" data-start=\"1034\" data-end=\"1065\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1066\" data-end=\"2336\"\u003e• Manufacturer: Yokogawa\u003cbr data-start=\"1090\" data-end=\"1093\"\u003e• Model \/ Part Number: PH402\u003cbr data-start=\"1121\" data-end=\"1124\"\u003e• Product Type: pH \/ ORP Converter (EXA Series)\u003cbr data-start=\"1171\" data-end=\"1174\"\u003e• Measurement Type: pH and ORP (Redox) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1250\" data-end=\"1253\"\u003e• Input: pH\/ORP sensors with high impedance dual input \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1345\" data-end=\"1348\"\u003e• Output Signals: Dual 4–20 mA outputs + relay outputs \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1440\" data-end=\"1443\"\u003e• Control Capability: Built-in PI control via analog outputs and relays \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1552\" data-end=\"1555\"\u003e• Communication: Digital communication capability (model dependent) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1660\" data-end=\"1663\"\u003e• Display: LCD interface with configuration and diagnostics \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1760\" data-end=\"1763\"\u003e• Housing: IP65 \/ NEMA 4X enclosure \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1836\" data-end=\"1839\"\u003e• Calibration: Microprocessor-aided calibration with buffer tables \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1943\" data-end=\"1946\"\u003e• Diagnostics: Sensor diagnostics including impedance, stability, and response checks \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2069\" data-end=\"2072\"\u003e• Temperature Compensation: Automatic compensation for process variation \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2184\" data-end=\"2187\"\u003e• Mounting: Panel or field mount installation\u003cbr data-start=\"2232\" data-end=\"2235\"\u003e• Product Status: Discontinued (legacy EXA series analyzer) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ln9bp8\" data-start=\"2338\" data-end=\"2364\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2365\" data-end=\"2457\"\u003e• Yokogawa FLXA21 pH Analyzer\u003cbr data-start=\"2394\" data-end=\"2397\"\u003e• Yokogawa FLXA202 pH Analyzer\u003cbr data-start=\"2427\" data-end=\"2430\"\u003e• Yokogawa\u003ca href=\"https:\/\/plgautomation.com\/products\/yokogawa-ph-orp-converter-exaxt450-ph450g?_pos=1\u0026amp;_sid=43cb7f80b\u0026amp;_ss=r\"\u003e PH450G\u003c\/a\u003e Converter\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51734602613038,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_3607fa40-4500-4204-a515-662259f589e2.jpg?v=1770606661","url":"https:\/\/plgautomation.com\/products\/yokogawa-exa-ph402-converter-for-ph-orp-analyzer-transmitter-o2","provider":"PLG Automation ","version":"1.0","type":"link"}