{"product_id":"yokogawa-ac1-5-s-d-r-ac1-automatic-calibration-unit-24vdc-120vac","title":"Yokogawa AC1-5-S-D-R AC1 Automatic Calibration Unit 24Vdc \u0026 120Vac","description":"\u003ch3 data-section-id=\"1vt381m\" data-start=\"0\" data-end=\"22\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"4\" data-end=\"20\"\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"23\" data-end=\"475\"\u003eThe Yokogawa AC1-5-S-D-R \u003ca href=\"https:\/\/plgautomation.com\/collections\/sensors-measurement\"\u003eAutomatic Calibration Unit\u003c\/a\u003e is used in gas analysis systems for automated calibration of oxygen analyzers. Commonly installed with Yokogawa ZR-series oxygen analyzers in process plants, boilers, and industrial combustion systems. Maintenance teams and system integrators use this part for automatic calibration, improving measurement accuracy, or replacing manual calibration systems in continuous monitoring applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"10m4hth\" data-start=\"477\" data-end=\"500\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"481\" data-end=\"498\"\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"501\" data-end=\"1004\"\u003eThe Yokogawa AC1 automatic calibration unit is commonly used in industrial environments where oxygen concentration must be accurately measured and maintained. It is frequently applied in combustion control systems, boilers, furnaces, and process plants to automatically supply calibration gases (zero and span) to oxygen analyzers. The unit enables scheduled or remote calibration without manual intervention, improving accuracy and reducing maintenance workload. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"12f0hz5\" data-start=\"1006\" data-end=\"1041\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1010\" data-end=\"1039\"\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1042\" data-end=\"2275\"\u003e• Manufacturer: Yokogawa\u003cbr data-start=\"1066\" data-end=\"1069\"\u003e• Model \/ Part Number: AC1-5-S-D-R\u003cbr data-start=\"1103\" data-end=\"1106\"\u003e• Product Type: Automatic Calibration Unit\u003cbr data-start=\"1148\" data-end=\"1151\"\u003e• Calibration Type: Automatic \/ semi-automatic gas calibration\u003cbr data-start=\"1213\" data-end=\"1216\"\u003e• Function: Supplies zero and span calibration gases via solenoid valves\u003cbr data-start=\"1288\" data-end=\"1291\"\u003e• System Compatibility: Yokogawa ZR402G analyzer with ZR22G probe \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1394\" data-end=\"1397\"\u003e• Control Method: Analyzer-controlled or timed automatic calibration \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1503\" data-end=\"1506\"\u003e• Solenoids: Electrically actuated with manual override \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1599\" data-end=\"1602\"\u003e• Operating Pressure: ~20 psi (max ~35 psi) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1683\" data-end=\"1686\"\u003e• Flow Rate: ~0.6 LPM (cal gas), ~0.8 LPM (reference air) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1781\" data-end=\"1784\"\u003e• Flowmeter Range: 0.15–1 LPM \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1851\" data-end=\"1854\"\u003e• Gas Connections: 1\/4\" FNPT fittings \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1929\" data-end=\"1932\"\u003e• Tubing: 1\/4\" copper (standard) or stainless steel option \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2028\" data-end=\"2031\"\u003e• Power Supply: Typically 110 VAC or 24 VDC (model dependent) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2130\" data-end=\"2133\"\u003e• Enclosure: NEMA 4 \/ NEMA 4X options \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2210\" data-end=\"2213\"\u003e• Functionality: Single-channel automatic calibration system\u003c\/p\u003e\n\u003ch3 data-section-id=\"uqv3ss\" data-start=\"2277\" data-end=\"2307\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2281\" data-end=\"2305\"\u003eCommon Replacements:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2308\" data-end=\"2441\"\u003e• Yokogawa AC4 Automatic Calibration Unit\u003cbr data-start=\"2349\" data-end=\"2352\"\u003e• Yokogawa AC8 Automatic Calibration Unit\u003cbr data-start=\"2393\" data-end=\"2396\"\u003e• Yokogawa IAC-24 Integral Calibration Unit\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"New","offer_id":51734683058478,"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_9b4d4908-b61e-41d1-ba11-ff4b9e471105.jpg?v=1770606918","url":"https:\/\/plgautomation.com\/products\/yokogawa-ac1-5-s-d-r-ac1-automatic-calibration-unit-24vdc-120vac","provider":"PLG Automation ","version":"1.0","type":"link"}