{"product_id":"foxboro-870itph-fyfnz-7-870it-series-intelligent-ph-transmitter","title":"Foxboro 870ITPH-FYFNZ-7 870IT Series Intelligent pH Transmitter","description":"\u003ch2\u003eFoxboro 870ITPH-FYFNZ-7 870IT Series Intelligent pH Transmitter\u003c\/h2\u003e\n\u003cp\u003eConfigured for continuous electro-analytical monitoring and signal conversion in DCS architectures, the \u003cstrong\u003eFoxboro 870ITPH-FYFNZ-7\u003c\/strong\u003e (\u003cstrong\u003e870ITPH\u003c\/strong\u003e Intelligent pH Transmitter) provides direct physical\/electrical execution. The instrument converts low-impedance glass electrode potential inputs across a pH 0 to 14 scale into a dual digital-analog output interface. Powered via a 2-wire 10.5 to 42.0 VDC loop, the transmitter incorporates local digital processing to evaluate millivolt potentials generated by primary sensor elements, mitigating high-impedance signal degradation across long field cable runs.\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\u003e870ITPH-FYFNZ-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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.20 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 870IT Field Mount Enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.0 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003epH 0 to 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC (Two-Wire Loop-Powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eHART Protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Input\u003c\/td\u003e\n\u003ctd\u003e10.5 to 42.0 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eAutomatic via Pt100 \/ Pt1000 RTD Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X \/ IP66 (Corrosion-Resistant Aluminum Alloy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; Fieldbus Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe instrument integrates a 4-20 mA HART loop protocol layer overlaying the primary analog output signal, facilitating continuous multidrop digital telemetry, remote device calibration, and online sensor diagnostic tracking. Internal electronics execute cold junction compensation protocols alongside automatic temperature correction via dedicated Pt100\/Pt1000 RTD input networks. Channel-to-channel isolation safeguards signal integrity by suppressing common-mode noise interferences and ground loops between field sensors, local LCD display drivers, and central control system I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the internal signal processing handle sensor drift during continuous operation?\u003c\/p\u003e\n\u003cp\u003eA: The transmitter utilizes automated temperature compensation via Pt100 or Pt1000 RTD inputs, dynamic temperature coefficient corrections, and remote HART offset adjustments to maintain measurement accuracy of +\/- 0.01 pH across changing process conditions.\u003c\/p\u003e\n\u003cp\u003eQ: What are the electrical loop-power limitations for field wiring compliance?\u003c\/p\u003e\n\u003cp\u003eA: The device operates over a supply range of 10.5 to 42.0 VDC, drawing up to 1.0 W. The loop voltage drop must account for total field wire resistance, intrinsic safety barriers where applicable, and minimum operating voltage at maximum loop current (20 mA).\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the NEMA 4X \/ IP66 enclosure directly on a vertical pipe or flat surface using standard mounting hardware. Route sensor and loop-power cables through specified conduit entries to prevent moisture ingress. Terminate field wiring at the labeled terminal block, ensuring proper polarity for the 10.5 to 42.0 VDC two-wire supply. Connect the Pt100\/Pt1000 RTD lines directly to dedicated compensation terminals.\u003c\/p\u003e\n\u003cp\u003eGround the enclosure to a low-impedance plant earth ground using the external grounding lug. Ensure signal wiring shields are grounded at one end only—typically at the control system rack—to prevent ground loop interference with high-impedance pH signals. Verify conduit seal integrity following wire termination to maintain environmental ratings in harsh installation sites.\u003c\/p\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":43931299217498,"sku":"870ITPH-FYFNZ-7","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/465._56c7c181-1532-4608-9436-685254cccd32.jpg?v=1787901837","url":"https:\/\/www.spareoil.com\/products\/foxboro-870itph-fyfnz-7-870it-series-intelligent-ph-transmitter","provider":"SpareOil Automation","version":"1.0","type":"link"}