{"product_id":"honeywell-8u-paiha1-experion-lx-analog-input-modules","title":"Honeywell 8U-PAIHA1 Experion LX Analog Input Modules","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 8U-PAIHA1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e8U-PAIHA1\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for 8-channel analog signal acquisition and digitization within Honeywell Experion LX control systems. The module converts 4-20 mA current and configurable voltage input signals into 16-bit digital values while providing transparent pass-through for HART digital communications. Integrated backplane interface logic ensures deterministic signal conversion and real-time data exchange with central system controllers.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e8U-PAIHA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.28 lb (0.58 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 cm x 14 cm x 14.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC, 110 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e8 single-ended channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Types\u003c\/td\u003e\n\u003ctd\u003eConfigurable 4-20 mA, Voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of full scale (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e2 k-ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5 to 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eStandard I\/O rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe 8U-PAIHA1 integrates dedicated communication circuitry to support the 4-20 mA HART loop protocol across all 8 input channels. Frequency Shift Keying (FSK) signals modulated over the 4-20 mA analog carrier are extracted for secondary variable monitoring, field device configuration, and predictive diagnostics. High-frequency digital noise filtering and channel-to-system electrical isolation prevent field loop voltage spikes and cross-channel ground loop interference from degrading the 16-bit analog-to-digital conversion accuracy.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 8U-PAIHA1 module be replaced while the Experion LX I\/O rack is under power?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module features a hot-swappable hardware architecture allowing insertion and removal under power without interrupting adjacent module communications or system backplane power rails.\u003c\/p\u003e\n\u003cp\u003eQ: How does HART communication function on individual analog input channels?\u003c\/p\u003e\n\u003cp\u003eA: The module superimposes HART FSK digital signals onto the primary 4-20 mA loop current, allowing bi-directional field transmitter diagnostic data transfer without interrupting the primary analog measurement.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane power supply requirement for operating the 8U-PAIHA1 module?\u003c\/p\u003e\n\u003cp\u003eA: The module operates from a nominal 24 VDC power supply rail, drawing a maximum current consumption of 110 mA.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eBond the I\/O rack mounting assembly directly to the cabinet Earth ground bar using a stranded copper conductor (minimum 4 mm2 \/ 10 AWG).\u003c\/li\u003e\n\u003cli\u003eIsolate external 24 VDC loop power supplies before attaching or servicing wiring on the module terminal block.\u003c\/li\u003e\n\u003cli\u003eRoute 4-20 mA analog signal cables in grounded metallic conduits, maintaining a minimum distance of 300 mm from high-voltage AC lines and VFD conductors.\u003c\/li\u003e\n\u003cli\u003eTerminate signal cable shields at a single ground point on the cabinet Earth bar to eliminate circulating ground currents across input loops.\u003c\/li\u003e\n\u003cli\u003eAlign module edge connectors with the backplane guide slots and press firmly until the locking latches engage to secure the mechanical connection.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48793863848126,"sku":"8U-PAIHA1","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/8C-PAINAI_012aee21-4513-4c06-9b76-351fda108845.png?v=1787887679","url":"https:\/\/www.autooiltech.com\/products\/honeywell-8u-paiha1-experion-lx-analog-input-modules","provider":"AutoOilTech Limited","version":"1.0","type":"link"}