{"product_id":"ai845-3bse023675r2-abb-ac-800m-analog-input","title":"AI845 3BSE023675R2 ABB AC 800M Analog Input","description":"\u003ch2\u003e\u003cstrong\u003eAI845 Analog Input Module, Single or Redundant\u003c\/strong\u003e\u003c\/h2\u003e\u003ch3\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe AI845 Analog Input Module is designed for single or redundant applications, providing 8 channels that can be either voltage or current inputs when using MTU TU844 or TU845. For other MTUs, all channels become either voltage or current inputs.\u003c\/p\u003e\u003cp\u003eThe voltage and current inputs can withstand an overvoltage or undervoltage of at least 11 V d.c. The input resistance is greater than 10 MΩ for voltage input and 250 Ω for current input.\u003c\/p\u003e\u003cp\u003eThe module distributes the external HART compatible transmitter supply to each channel, facilitating simple connections to 2-wire or 3-wire transmitters. The transmitter power is supervised and current-limited. If an external power supply is used for HART transmitters, it must be HART compatible.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8 channels for 0...20 mA, 4...20 mA, 0...5 V or 1...5 V d.c., single-ended unipolar inputs.\u003c\/li\u003e\n\u003cli\u003eSingle or redundant operation.\u003c\/li\u003e\n\u003cli\u003e1 group of 8 channels isolated from ground.\u003c\/li\u003e\n\u003cli\u003e12-bit resolution.\u003c\/li\u003e\n\u003cli\u003eCurrent limited transmitter supply per channel.\u003c\/li\u003e\n\u003cli\u003eAdvanced on-board diagnostics.\u003c\/li\u003e\n\u003cli\u003eHART pass-through communication.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe module performs cyclic self-diagnostics covering:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExternal power supply, Transmitter power, and External shunt error (reported as External channel error).\u003c\/li\u003e\n\u003cli\u003eLow Pass Filter, Multiplexer, and Test channels (reported as Internal channel error).\u003c\/li\u003e\n\u003cli\u003eAnalog Read Back, Reference Voltage, Internal Power Supply, Checksum, Watchdog, and Memory (reported as Module Error).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAll eight channels are isolated from the ModuleBus in one group, with power to the input stages converted from the 24 V on the ModuleBus. The module supports HART pass-through functionality, but only point-to-point communication.\u003c\/p\u003e\u003cp\u003eVarious MTUs can be used:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle applications\u003c\/strong\u003e: TU830\/TU833 (three-wire connection without additional terminals), TU810\/TU814 (requires external terminals for 24 V power supply distribution), TU835\/TU838 (includes a fuse per channel), TU812 (D-Sub 25 pin connector), and TU818 (connection to 2-wire sensors).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant applications\u003c\/strong\u003e: TU844\/TU845\/TU854 (allow mixing voltage and current inputs).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eShielded field cables are required for process connections if HART is used. The Shunt mode should be set to External shunt when using MTU TU844\/TU845\/TU854 or when voltage inputs are required.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGeneral Specifications at 25°C\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of channels\u003c\/strong\u003e: 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType of input\u003c\/strong\u003e: Unipolar single-ended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement range\u003c\/strong\u003e: 0...20 mA, 0...5 V, 4...20 mA, 1...5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver range\u003c\/strong\u003e: +15%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput impedance\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eVoltage input: 10 MΩ\u003c\/li\u003e\n\u003cli\u003eCurrent input (including PTC): 250 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum field cable length\u003c\/strong\u003e: 600 meters (656 yd.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage input, maximum non-destructive\u003c\/strong\u003e: 11 V d.c.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNMRR, 50 Hz, 60 Hz\u003c\/strong\u003e: \u0026gt;40 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eError\u003c\/strong\u003e: Max. 0.1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution\u003c\/strong\u003e: 12-bit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature drift\u003c\/strong\u003e: Max. 50 ppm\/°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate cycle time\u003c\/strong\u003e: 10 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent consumption\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003e24 V (Modulebus): 50 mA\u003c\/li\u003e\n\u003cli\u003e5 V (Modulebus): 100 mA\u003c\/li\u003e\n\u003cli\u003e24 V (process power supply, UPx): 339 mA (max) (22 mA + transmitter current*1.32)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower dissipation\u003c\/strong\u003e: 3.5 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmitter supply (per channel)\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eVoltage: 24 V @ 23 mA\u003c\/li\u003e\n\u003cli\u003eCurrent: 30 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupervision\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule error\u003c\/strong\u003e: Analog read back, reference voltage, internal power supply, checksum, watchdog, and memory error\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal channel error\u003c\/strong\u003e: Low pass filter, multiplexer, and test channels error\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal channel error\u003c\/strong\u003e: External power supply low, transmitter power, and external shunt error\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput filter (rise time 0-90%)\u003c\/strong\u003e: 290 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation\u003c\/strong\u003e: Groupwise isolated from ground\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eModule Termination Units\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eTU810, TU812, TU814, TU818, TU830, TU833, TU835, TU838, TU844, TU845, TU854\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMTU Keying Code\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCC\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eRated Insulation Voltage\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e50 V\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eDielectric Test Voltage\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e500 V a.c.\u003c\/li\u003e\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":49132254101786,"sku":"AI845","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/AI845_1_a26380cf-6606-4a71-ac61-197d09464a82.jpg?v=1717835655","url":"https:\/\/www.ubestplc.com\/products\/ai845-3bse023675r2-abb-ac-800m-analog-input","provider":"Ubest Automation Limited","version":"1.0","type":"link"}