{"product_id":"allen-bradley-1794-if8ih-8-channel-hart-input-module-flex-i-o","title":"Allen-Bradley 1794-IF8IH 8-Channel HART Input Module Flex I\/O","description":"\u003ch2 style=\"color: #0056b3; font-size: 1.5em;\"\u003eAllen-Bradley 1794-IF8IH FLEX I\/O HART Analog Input Module\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.05em; line-height: 1.6;\"\u003eThe \u003cb style=\"color: #0056b3;\"\u003eAllen-Bradley 1794-IF8IH\u003c\/b\u003e is a FLEX I\/O HART analog module featuring 8 isolated single-ended inputs. Using Sigma-Delta conversion with 16-bit unipolar and 15-bit bipolar resolution, this module provides reliable analog signal acquisition. Operating on 19.2 to 31.2 V DC, it consumes 4.8 W maximum. Weighing approximately 0.5 kg (1.1 lbs), it measures 3.7 x 3.7 x 2.6 inches and operates from 32°F to 131°F.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003cthead style=\"background-color: #f2f4f6;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ccc; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ccc; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e1794-IF8IH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSeries\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eFlex I\/O 1794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e8 (Isolated, single-ended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eOutputs\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eConversion Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eSigma-Delta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eUnipolar Resolution\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eBipolar Resolution\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e15 bits plus sign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eExternal DC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e19.2 to 31.2 V DC (5% AC ripple)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eFlexbus Current\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e80 mA @ 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e4.8 W max @ 31.2 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e16.4 BTU\/hr @ 31.2 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e32°F to 131°F (0°C to 55°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eEnclosure\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eOpen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e3.7 x 3.7 x 2.6 in (94 x 94 x 66 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eApprox. 0.5 kg (1.1 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003eUPC\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ccc;\"\u003e10612598346902\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eCompatible Terminal Bases\u003c\/h3\u003e\n\u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n\u003cli\u003e1794-TB3\u003c\/li\u003e\n\u003cli\u003e1794-TB3S\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eInstallation \u0026amp; Field Application Guide\u003c\/h3\u003e\n\u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n\u003cli\u003eMount the module on a compatible terminal base (1794-TB3 or 1794-TB3S). Ensure secure seating.\u003c\/li\u003e\n\u003cli\u003eUse shielded wiring for signal connections. Signal ports are wiring category 2; power ports are wiring category 3.\u003c\/li\u003e\n\u003cli\u003eVerify external DC voltage is between 19.2 and 31.2 V DC with less than 5% AC ripple.\u003c\/li\u003e\n\u003cli\u003eField calibration is available if factory calibration does not meet application requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eWhy Choose the 1794-IF8IH\u003c\/h3\u003e\n\u003cul style=\"margin-left: 20px; line-height: 1.8;\"\u003e\n\u003cli\u003e8 isolated HART analog inputs with Sigma-Delta conversion for high accuracy.\u003c\/li\u003e\n\u003cli\u003e16-bit unipolar and 15-bit bipolar resolution for flexible signal measurement.\u003c\/li\u003e\n\u003cli\u003eNorth American Hazardous Location approval for safe operation in industrial environments.\u003c\/li\u003e\n\u003cli\u003eField calibration capability allows in-situ adjustment without factory return.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #0056b3; margin-top: 24px;\"\u003eField Engineer FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cb style=\"color: #0056b3;\"\u003eQ1:\u003c\/b\u003e What is the difference between isolated and non-isolated inputs on this module?\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA1:\u003c\/b\u003e The 1794-IF8IH provides isolated inputs, meaning each channel is electrically separated from the module's backplane and other channels, reducing ground loop noise and protecting the system from field-side faults.\u003c\/p\u003e\n\u003cp\u003e\u003cb style=\"color: #0056b3;\"\u003eQ2:\u003c\/b\u003e Can this module communicate HART data?\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA2:\u003c\/b\u003e Yes, the 1794-IF8IH supports HART communication, allowing access to device diagnostics and configuration parameters from connected HART field instruments.\u003c\/p\u003e\n\u003cp\u003e\u003cb style=\"color: #0056b3;\"\u003eQ3:\u003c\/b\u003e What wire size should I use for the 1794-IF8IH?\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA3:\u003c\/b\u003e Wire size depends on the terminal base used. Refer to the terminal base documentation. Use shielded wiring for signal ports (category 2) and appropriate gauge for power ports (category 3).\u003c\/p\u003e\n\n\u003cp style=\"margin-top: 24px;\"\u003eInquiries: \u003ca style=\"color: #0056b3; text-decoration: none; font-weight: bold;\" href=\"mailto:sale@etowonauto.com\"\u003esale@etowonauto.com\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52645831344260,"sku":"1794-IF8IH","price":182.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1794-IF8IH-1.jpg?v=1786880672","url":"https:\/\/www.etowonauto.com\/it\/products\/allen-bradley-1794-if8ih-8-channel-hart-input-module-flex-i-o","provider":"Etowon Auto","version":"1.0","type":"link"}