{"product_id":"foxboro-873rs-aiyfnz-7-873rs-electrochemical-resistivity-analyzer","title":"Foxboro 873RS-AIYFNZ-7 873RS Electrochemical Resistivity Analyzer","description":"\u003ch2\u003eFoxboro 873RS-AIYFNZ-7 873RS Electrochemical Resistivity Analyzer\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFoxboro 873RS-AIYFNZ-7\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e873RS\u003c\/strong\u003e Electrochemical Resistivity Analyzer, operates as a dedicated hardware component for continuous liquid resistivity measurement within ultrapure water monitoring systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e873RS-AIYFNZ-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFoxboro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e350 x 260 x 180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e115\/230 VAC line power, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalyzer Type\u003c\/td\u003e\n\u003ctd\u003eElectrochemical Resistivity Analyzer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0.1 to 20 Mohm-cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Output\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Type\u003c\/td\u003e\n\u003ctd\u003eFront-panel LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X \/ IEC rated housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFoxboro 873RS-AIYFNZ-7\u003c\/strong\u003e converts low-level sensor potential inputs into standardized continuous signals, maintaining 4-20 mA HART loop protocol compatibility across supervisory control networks. Integrated automatic temperature compensation algorithm routines normalize raw sensor conductivity inputs to standard 25 deg C baselines. Built-in channel-to-channel isolation eliminates ground loop interference between field sensors and remote DCS receiver cards, preserving high-resolution analog signal transmission across high-impedance water treatment loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the internal temperature compensation function during ultrapure water monitoring?\u003c\/p\u003e\n\u003cp\u003eA: The analyzer uses internal temperature compensation algorithms tied to sensor RTD inputs, normalizing raw resistance values to standard 25 deg C reference baselines across the 0.1 to 20 Mohm-cm span.\u003c\/p\u003e\n\u003cp\u003eQ: What mechanisms protect the 4-20 mA DC analog output from plant electrical noise?\u003c\/p\u003e\n\u003cp\u003eA: Built-in channel-to-channel isolation decouples the sensor input terminals from the 4-20 mA DC output loop, preventing ground loop potential differences between field sensors and control room I\/O modules.\u003c\/p\u003e\n\u003cp\u003eQ: How is primary AC operating voltage configured on the terminal assembly?\u003c\/p\u003e\n\u003cp\u003eA: Internal transformer jumpers configure the unit for either 115 VAC or 230 VAC line power at 50\/60 Hz, terminating at labeled power input screw terminals.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Mounting\u003c\/strong\u003e: Secure the NEMA 4X housing into panel cutouts or onto vertical pipe stands using dedicated mounting hardware, providing sufficient clearance for enclosure door swing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Separation\u003c\/strong\u003e: Route high-voltage AC mains supply cables and 4-20 mA DC signal cables through independent conduit entries to prevent electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Wiring Integrity\u003c\/strong\u003e: Wire two-electrode sensor leads directly to assigned terminal blocks, verifying that sensor cable shield wires connect cleanly to the enclosure earth ground bus bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Protocols\u003c\/strong\u003e: Connect a low-impedance ground conductor from the primary protective earth lug to the plant master ground reference point before powering the device.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":43841644560483,"sku":"873RS-AIYFNZ-7","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/169.1_3bea3acb-c1b9-4d24-ae69-3bfc6dbf0216.jpg?v=1763433696","url":"https:\/\/www.autocontrolglobal.com\/products\/foxboro-873rs-aiyfnz-7-873rs-electrochemical-resistivity-analyzer","provider":"AutoControl Global","version":"1.0","type":"link"}