{"product_id":"allen-bradley-1746-nt4-analog-input-module","title":"Allen-Bradley - 1746-NT4 Analog Input Module","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1746-NT4 Thermocouple\/mV Input Module\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003eAllen-Bradley\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e SLC 500 programmable controller family\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e\u003cstrong\u003e1746-NT4\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Type:\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e4-channel Thermocouple\/mV analog input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e Four isolated thermocouple\/mV inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 16-bit input, 14-bit output conversion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA\/D Conversion:\u003c\/strong\u003e Sigma-delta modulation method\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Performance Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe \u003cstrong\u003e1746-NT4\u003c\/strong\u003e provides \u003cspan style=\"color: #e74c3c;\"\u003efour independent measurement channels\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eUpdate time is configurable from 26 milliseconds to 1.2 seconds\u003c\/li\u003e\n\u003cli\u003eStep response time is 60 milliseconds in, 2.5 milliseconds out\u003c\/li\u003e\n\u003cli\u003eBandwidth ranges from 2.62 Hz to 65.5 Hz for signal filtering\u003c\/li\u003e\n\u003cli\u003eBuilt-in cold-junction compensation (CJC) sensors maintain accuracy\u003c\/li\u003e\n\u003cli\u003eAuto-calibration occurs at power-up and when channels enable\u003c\/li\u003e\n\u003cli\u003eFive status LEDs indicate module operation and individual channel status\u003c\/li\u003e\n\u003cli\u003eSelectable filter frequencies: 10 Hz, 50 Hz, 60 Hz, and 250 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSensor and Signal Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermocouple Types:\u003c\/strong\u003e Supports \u003cspan style=\"color: #e74c3c;\"\u003eJ, K, T, E, S, R, B, and N\u003c\/span\u003e sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMillivolt Inputs:\u003c\/strong\u003e Compatible with \u003cspan style=\"color: #e74c3c;\"\u003e±50 mV and ±100 mV\u003c\/span\u003e signals\u003c\/li\u003e\n\u003cli\u003eEach channel features configurable open circuit detection settings\u003c\/li\u003e\n\u003cli\u003eOpen circuit response options: Zero, Upscale, or Downscale reading\u003c\/li\u003e\n\u003cli\u003eFor thermocouples: Use shielded twisted extension wire specifically designed\u003c\/li\u003e\n\u003cli\u003eFor mV signals: Recommended cable is Belden 8761 or equivalent\u003c\/li\u003e\n\u003cli\u003eMaximum cable impedance: 25 ohms for proper signal transmission\u003c\/li\u003e\n\u003cli\u003eTerminals accept two wires maximum at 2.5 mm (14 AWG) wire size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical and Installation Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBackplane current: \u003cspan style=\"color: #e74c3c;\"\u003e60 mA at 5V DC and 40 mA at 24V DC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum power consumption: 0.8 watts total (0.3W at 5V DC, 0.5W at 24V DC)\u003c\/li\u003e\n\u003cli\u003eNo external power supply required - powered from backplane only\u003c\/li\u003e\n\u003cli\u003eInstall in any 1746 chassis slot \u003cspan style=\"color: #e74c3c;\"\u003eexcept slot 0\u003c\/span\u003e (reserved for processor)\u003c\/li\u003e\n\u003cli\u003eCompatible with both fixed style and modular style SLC 500 hardware\u003c\/li\u003e\n\u003cli\u003eBlock transfers required when used in remote I\/O system configurations\u003c\/li\u003e\n\u003cli\u003eFour channels are isolated from the backplane for signal integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental and Operational Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating temperature: \u003cspan style=\"color: #e74c3c;\"\u003e0°C to 60°C (32°F to 140°F)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -40°C to 85°C (-40°F to 185°F)\u003c\/li\u003e\n\u003cli\u003eSingle-slot design maximizes space efficiency in control panels\u003c\/li\u003e\n\u003cli\u003eIdeal for temperature monitoring in harsh industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhere should I install this module in the chassis?\u003c\/strong\u003e\u003cbr\u003eInstall the \u003cstrong\u003e1746-NT4\u003c\/strong\u003e in any slot of a 1746 chassis except slot 0 for the processor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the module need separate power wiring?\u003c\/strong\u003e\u003cbr\u003eNo external power is needed - it receives power from the SLC 500 backplane connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow does cold-junction compensation work?\u003c\/strong\u003e\u003cbr\u003eTwo built-in CJC sensors measure terminal temperature to compensate for reference junction effects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat happens if a thermocouple wire breaks?\u003c\/strong\u003e\u003cbr\u003eConfigurable open circuit detection can force readings to zero, upscale, or downscale values.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContact Information:\u003c\/strong\u003e\u003cbr\u003eFor technical specifications or purchasing assistance:\u003cbr\u003eEmail: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003cbr\u003ePhone\/WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003ePartner: \u003ca href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003eNexAuto Technology Limited\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45570892267681,"sku":"1746-NT4","price":285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1746-NT4.jpg?v=1766566792","url":"https:\/\/www.autonexcontrol.com\/vi\/products\/allen-bradley-1746-nt4-analog-input-module","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}