{"product_id":"allen-bradley-1734-it2i-analog-temperature-input-module","title":"Allen-Bradley 1734-IT2I Analog Temperature Input Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1734-IT2I is a POINT I\/O Analog Temperature Input Module engineered for precision temperature monitoring in industrial automation systems. As part of the POINT I\/O series, this module delivers reliable, isolated thermocouple inputs that integrate seamlessly into Rockwell Automation architectures.\u003c\/p\u003e\u003cp\u003eWith two differential individually-isolated thermocouple inputs, the 1734-IT2I provides accurate temperature readings while maintaining electrical isolation between channels. The module supports real-time status monitoring through its front-panel indicators, showing network status, module status, and the status of input 0 and input 1. This visibility simplifies troubleshooting and reduces downtime.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eThe 1734-IT2I offers a resolution of 15 bits, ensuring fine granularity for temperature measurement. Its input voltage range is ±75 mV, suitable for standard thermocouple signals. The module draws 175 mA from the POINTBus at 5 V DC, making it energy-efficient within the backplane.\u003c\/p\u003e\u003cp\u003eKey specifications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 2 Thermocouple (differential, individually isolated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 15 bits (2.5 µV\/count)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e ±75 mV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOINTBus Current:\u003c\/strong\u003e 175 mA at 5 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Switch Position:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe module supports signed integer data formats across four temperature scales—Celsius, Fahrenheit, Kelvin, and Rankine—plus a custom mV scale. Its Delta Sigma conversion type ensures stable, accurate readings. Alarm conditions include under-range, over-range, cold junction compensation (CJC) open-wire detection, and level alarms (low-low, low, high, high-high), providing comprehensive fault protection.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1734-IT2I excels in applications requiring precise temperature monitoring, such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Control:\u003c\/strong\u003e Monitor reactor temperatures in chemical plants, where ±75 mV thermocouple inputs capture subtle variations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC Systems:\u003c\/strong\u003e Track duct and ambient temperatures to optimize energy consumption in large facilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Lines:\u003c\/strong\u003e Ensure proper heat treatment in ovens or furnaces, using the module's high resolution to maintain quality.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIts compact form factor (2.21 x 0.47 x 2.97 inches) and light weight (0.08 lb) make it ideal for space-constrained panels.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eInstall the 1734-IT2I only on the 1734-TBCJC wiring base assembly. No external DC power supply is required; the module draws power from the POINTBus. Follow these steps for proper setup:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eMount the module onto the 1734-TBCJC base, ensuring the key switch is set to position 6.\u003c\/li\u003e\n\u003cli\u003eConnect thermocouple wires to the appropriate terminals, respecting polarity and shielding.\u003c\/li\u003e\n\u003cli\u003eConfigure the module using your control software, selecting the desired temperature scale (Celsius, Fahrenheit, Kelvin, Rankine) or mV custom scale.\u003c\/li\u003e\n\u003cli\u003eSet alarm thresholds for under-range, over-range, and CJC open-wire detection as needed.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eEnsure the wiring base is correctly terminated to the POINTBus to maintain communication integrity.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRegular inspection of the 1734-IT2I ensures long-term reliability. Check thermocouple connections periodically for corrosion or loose terminations, which can cause false readings. The module operates in temperatures from -20 to 55 °C and can be stored from -4 to 85 °C, with non-condensing relative humidity of 5 to 95%. Its open-style enclosure allows heat dissipation, but ensure adequate airflow in the cabinet.\u003c\/p\u003e\u003cp\u003eWith a maximum power dissipation of 1 W and thermal dissipation of 3.3 BTU\/hr, the module runs cool, extending its service life. Vibration resistance up to 5 g at 10-500 Hz and shock tolerance (30 g operating, 50 g non-operating) make it suitable for demanding industrial environments.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe 1734-IT2I integrates with Rockwell Automation's POINT I\/O platform, communicating via the POINTBus backplane. It works with compatible scanners and controllers, producing eight bytes of scanner data (Rx) and fault status data without consuming I\/O data (Tx). This efficiency preserves bandwidth for other I\/O modules.\u003c\/p\u003e\u003cp\u003eStatus indicators provide real-time feedback, enabling quick diagnostics. The module's isolation voltage of 50 V continuous ensures safe operation in mixed-voltage environments.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the 1734-IT2I, verify your system's POINTBus capacity and available key switch positions. Ensure you have the 1734-TBCJC wiring base assembly, as the module is not compatible with other bases. Confirm your thermocouple types and required temperature ranges to match the ±75 mV input range.\u003c\/p\u003e\u003cp\u003eFor reliable sourcing and competitive pricing, consider PLC Source PRO as your supplier for the Allen-Bradley 1734-IT2I and other industrial automation spares. With a focus on quality and availability, PLC Source PRO supports your operational uptime.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44434650660963,"sku":"1734-IT2I","price":296.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1734-232ASC_e59f9ed3-0353-4c65-b745-4b360c67b8fd.jpeg?v=1785765670","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1734-it2i-analog-temperature-input-module","provider":"PLC Source PRO","version":"1.0","type":"link"}