{"product_id":"honeywell-8u-paoha1-analog-output","title":"Honeywell 8U-PAOHA1 Analog Output","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 8U-PAOHA1\u003c\/strong\u003e serves as the primary \u003cstrong\u003e8U-PAOHA1\u003c\/strong\u003e Analog Output Module utilized to execute precision 4-20 mA HART analog control signaling across Honeywell Series 8 I\/O system platforms. The hardware drives up to 16 independent analog loops, converting digital controller output commands into calibrated analog current signals with 12-bit resolution. Integrated HART pass-through communication enables bi-directional field instrument diagnostic data access alongside main control loop processing.\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-PAOHA1\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\u003e0.5 kg (1.1 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 70 mm x 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Type\u003c\/td\u003e\n\u003ctd\u003e4-20 mA with HART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic channel-to-system isolation\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-PAOHA1 features dedicated 4-20 mA HART loop protocol modems per channel to support dynamic process variable modulation and field device diagnostic extraction. Integrated channel-to-channel isolation hardware suppresses common-mode voltage spikes, ground potential offsets, and external electromagnetic interference across industrial plant networks. Built-in cold junction compensation (CJC) algorithms and thermal drift stabilization components maintain a output control accuracy within +\/-0.1% of full scale across an extended operating range of -40 to +85 deg C.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 8U-PAOHA1 module allow HART diagnostic pass-through while actively driving the 4-20 mA current loop?\u003c\/p\u003e\n\u003cp\u003eA: Yes, digital HART frequency-shift keying (FSK) signals are superimposed on the standard 4-20 mA analog output without disturbing the primary analog control signal.\u003c\/p\u003e\n\u003cp\u003eQ: What power source is required to drive the analog current loops on this module?\u003c\/p\u003e\n\u003cp\u003eA: The module relies on a nominal 24 VDC supply to power the internal digital-to-analog converters and field output loops.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle output signal stability in high-noise electrical environments?\u003c\/p\u003e\n\u003cp\u003eA: Galvanic isolation circuits decouple the backplane logic from individual field loops, isolating sensitive digital processing from high-frequency field spikes and ground loops.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm that the Series 8 I\/O chassis enclosure Earth ground strap is securely bonded to the main station ground point using low-impedance copper cable (minimum 4 mm2 \/ 10 AWG).\u003c\/li\u003e\n\u003cli\u003eIsolate all external 24 VDC loop supply power feeds before seating or removing the 8U-PAOHA1 module from its backplane connector slot.\u003c\/li\u003e\n\u003cli\u003eRoute 4-20 mA analog output cables in shielded, twisted-pair configurations isolated from high-voltage AC lines by a distance of at least 300 mm.\u003c\/li\u003e\n\u003cli\u003eGround cable shields at a single point on the cabinet Earth grounding rail to prevent ground loop circulating currents.\u003c\/li\u003e\n\u003cli\u003eTorque field wiring terminal screws to the manufacturer-specified value (0.5 to 0.6 Nm) to maintain gas-tight low-resistance contact points.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48793863520446,"sku":"8U-PAOHA1","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/CC-PDOB01Honeywell_6d8c368b-2c14-48b3-9068-65d183ec9754.png?v=1787887666","url":"https:\/\/www.autooiltech.com\/products\/honeywell-8u-paoha1-analog-output","provider":"AutoOilTech Limited","version":"1.0","type":"link"}