{"product_id":"1771-ifms-allen-bradley-intrinsically-safe-millivolt-input-module","title":"1771-IFMS Allen-Bradley - Intrinsically Safe Millivolt Input Module","description":"\u003ch2\u003eAllen-Bradley 1771-IFMS Intrinsically Safe Fast Millivolt Input Module\u003c\/h2\u003e\n\u003ch3\u003eCore Measurement Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Rockwell Automation \/ Allen-Bradley\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e 1771-IFMS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e Intrinsically Safe Fast Millivolt Input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 8 Differential Channels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 0-50 Millivolts DC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eResolution:\u003c\/strong\u003e 12-bit Binary\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eAccuracy:\u003c\/strong\u003e 0.1% of Range at 25°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e74b5;\"\u003e\u003cstrong\u003eLinearity:\u003c\/strong\u003e ±1 LSB\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance \u0026amp; Environmental Ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #e74c3c;\"\u003eThe module scans all 8 channels in just 14.5 milliseconds.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #e74c3c;\"\u003eInput impedance measures 1 megaohm for minimal signal loading.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #e74c3c;\"\u003eCommon-mode rejection ratio reaches 100 dB at 60 Hertz.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #e74c3c;\"\u003eOperating temperature range spans from 0 to 60 degrees Celsius.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #e74c3c;\"\u003eRelative humidity tolerance ranges from 5% to 95% non-condensing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #e74c3c;\"\u003eThe module withstands 15 G operational shock and 30 G non-operational shock.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical \u0026amp; Safety Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBackplane current requirement is 750 milliamperes at +5 Volts DC.\u003c\/li\u003e\n\u003cli\u003eInput overvoltage protection handles up to 32 Volts continuously.\u003c\/li\u003e\n\u003cli\u003eThe A\/D converter provides monotonic output with no missing codes.\u003c\/li\u003e\n\u003cli\u003eMaximum input voltage range capability extends to ±10 Volts DC.\u003c\/li\u003e\n\u003cli\u003eThis intrinsically safe design meets T6 temperature code requirements.\u003c\/li\u003e\n\u003cli\u003eNon-intrinsically safe side must not exceed 250 Volts RMS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Wiring Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlways install the \u003cstrong\u003e1771-IFMS\u003c\/strong\u003e module with system power completely off.\u003c\/li\u003e\n\u003cli\u003eUse the compatible 1771-WG wiring arm for all field connections.\u003c\/li\u003e\n\u003cli\u003eRecommended wire size is 0.25–2.5 mm² (22–14 AWG) copper.\u003c\/li\u003e\n\u003cli\u003eApply proper screw torque between 0.8–1.0 Nm (7–9 lb-in).\u003c\/li\u003e\n\u003cli\u003eEnsure wire insulation rating is 75°C (167°F) or greater.\u003c\/li\u003e\n\u003cli\u003eFollow electrostatic discharge precautions during handling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackaging \u0026amp; Global Shipping\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYour order includes one factory-sealed Allen-Bradley \u003cstrong\u003e1771-IFMS\u003c\/strong\u003e module.\u003c\/li\u003e\n\u003cli\u003eWe provide secure packaging with static protection for safe delivery.\u003c\/li\u003e\n\u003cli\u003eWe ship worldwide via express carriers including FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003eYou receive full tracking details immediately after order dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWhat does \"intrinsically safe\" mean for this module?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eIt means the module prevents ignition of flammable atmospheres by limiting electrical energy.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat types of sensors work with this millivolt input module?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eIt connects to low-level sensors like thermocouples, strain gauges, and load cells.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHow does the 12-bit resolution benefit measurement accuracy?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eThis resolution provides 4096 discrete steps across the 0-50 mV range for precise readings.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCan I hot-swap this module while the PLC-5 system is powered?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eNo, the module does not support Removal and Insertion Under Power (RIUP).\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWhat is the significance of 100 dB common-mode rejection?\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eThis high rejection ratio eliminates noise interference from ground potential differences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2025 Ubest Automation Limited. All rights reserved. Original Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e Contact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e Phone: \u003ca href=\"https:\/\/wa.me\/868618030005825\"\u003e+86 86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51195008123162,"sku":null,"price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/1771-IFMS_3.jpg?v=1760058614","url":"https:\/\/www.ubestplc.com\/ms\/products\/1771-ifms-allen-bradley-intrinsically-safe-millivolt-input-module","provider":"Ubest Automation Limited","version":"1.0","type":"link"}