{"product_id":"870itph-fyfnz-7-ph-orp-transmitter-foxboro","title":"870ITPH-FYFNZ-7 pH \/ ORP Transmitter | Foxboro","description":"\u003cp\u003eThe \u003cstrong\u003eFoxboro 870ITPH-FYFNZ-7\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e870ITPH-FYFNZ-7\u003c\/strong\u003e pH\/ORP Transmitter, operates as a dedicated hardware component for electrochemical signal conditioning and loop-powered process measurement within industrial control loops. The unit accepts raw potential inputs from pH and oxidation-reduction potential sensors, converting them into standardized proportional outputs across a 12.5 VDC to 42.0 VDC excitation span.\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\u003eStandard Manufacturing Facility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.20 lbs (1.91 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Field-Mount Enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to 85 deg C (-4 deg F to 185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e0 to 14 pH \/ ORP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e12.5 to 42.0 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA with digital communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X \/ IP66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and 4-20 mA Loop Integration\u003c\/h3\u003e\n\u003cp\u003eWhen deployed within Foxboro distributed control architectures, the transmitter interfaces directly with 4-20 mA HART loop protocol loops to deliver real-time chemical concentration feedback to central automation controllers. Internal circuit designs implement galvanic channel-to-channel isolation and cold junction compensation (CJC) equivalents for temperature-compensated electrode measurements, effectively suppressing common-mode electrical noise and ground loops from industrial process media.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 870ITPH-FYFNZ-7 support hot-swapping while the loop is energized?\u003c\/p\u003e\n\u003cp\u003eA: No, field wiring must be disconnected and power de-energized before removing or replacing the transmitter unit to prevent signal spikes on the 4-20 mA loop.\u003c\/p\u003e\n\u003cp\u003eQ: How does the unit maintain measurement accuracy under severe electromagnetic interference?\u003c\/p\u003e\n\u003cp\u003eA: The transmitter utilizes internal shielding and optical galvanic isolation across its microprocessor and sensor input stages to ensure stable pH\/ORP conversion in high-noise electrical environments.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the transmitter securely to a 2-inch pipe or rigid vertical surface using approved stainless steel bracket hardware, ensuring minimal vibration exposure.\u003c\/li\u003e\n\u003cli\u003eTerminate all signal and power cables using shielded twisted-pair wire, grounding the shield exclusively at the control system cabinet ground bus to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003eEnsure weather-tight cable glands and conduit seals are fully tightened to maintain the NEMA 4X \/ IP66 environmental protection rating against moisture ingress.\u003c\/li\u003e\n\u003cli\u003eVerify that loop power supply voltage remains strictly within the 12.5 VDC to 42.0 VDC range prior to activating the circuit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":67715317563701,"sku":"870ITPH-FYFNZ-7","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/870ITPH-FYFNZ-7.png?v=1792122053","url":"https:\/\/www.5gplc.com\/products\/870itph-fyfnz-7-ph-orp-transmitter-foxboro","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}