{"product_id":"honeywell-mc-ghao21-galvanically-isolated-analog-output-fta","title":"Honeywell MC-GHAO21 Galvanically Isolated Analog Output FTA","description":"\u003ch2\u003eHoneywell MC-GHAO21 Galvanically Isolated Analog Output FTA\u003c\/h2\u003e\n\u003cp\u003eConfigured for isolated analog current signal execution in Honeywell TDC 3000 and Experion PKS platforms, the \u003cstrong\u003eHoneywell MC-GHAO21 (51305869-175)\u003c\/strong\u003e (\u003cstrong\u003eMC-GHAO21\u003c\/strong\u003e Galvanically Isolated Analog Output FTA) provides direct electrical conversion from control data to 4-20 mA field outputs.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003eMC-GHAO21\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\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51305869-175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eGalvanically Isolated Analog Output Field Termination Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell TDC 3000 \/ Experion PKS HPM and IOP systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003eNot specified in available data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Type\u003c\/td\u003e\n\u003ctd\u003eGalvanic isolation, channel-to-channel and channel-to-system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 870 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003e4-20 mA HART loop protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDIN rail \/ cabinet rack mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eNot specified in available data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eNot specified in available data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified in available data\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 and Channel Isolation Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe MC-GHAO21 applies Honeywell process control interface technology for analog output signal handling. It receives digital output commands from the control system and generates isolated 4-20 mA current signals for field actuators.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the module supports HART communication signals superimposed on the analog output loop. The galvanic isolation structure separates field circuits from system electronics, which reduces ground loop influence and improves signal integrity in distributed control installations.\u003c\/p\u003e\n\u003cp\u003eThe isolated output architecture supports connection to control valves, I\/P converters, valve positioners, and variable speed drive interfaces. Additionally, the isolation design assists with channel protection during field-side electrical disturbances.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the MC-GHAO21 support HART communication on the analog output channel?\u003cbr\u003eA: Yes. The module supports HART digital communication superimposed on standard 4-20 mA analog output loops.\u003c\/p\u003e\n\u003cp\u003eQ: What installation consideration applies to the isolated analog output wiring?\u003cbr\u003eA: Field wiring should maintain proper shield termination practices and separate analog signal cables from high-voltage power conductors to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eQ: Can the MC-GHAO21 operate as a standalone analog output device?\u003cbr\u003eA: No. The module is designed as a Honeywell DCS field termination assembly and requires compatible Honeywell control system hardware.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the MC-GHAO21 inside an approved control cabinet or DIN rail mounting arrangement according to the system hardware design.\u003c\/li\u003e\n\u003cli\u003eVerify terminal assignments before connecting field devices to prevent incorrect current loop wiring.\u003c\/li\u003e\n\u003cli\u003eUse shielded instrumentation cable for analog output circuits where required by the installation environment.\u003c\/li\u003e\n\u003cli\u003eConnect cable shields according to the site grounding standard to reduce electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eSeparate analog signal wiring from AC power and high-current switching circuits.\u003c\/li\u003e\n\u003cli\u003eConfirm system compatibility with the Honeywell controller and I\/O hardware before commissioning.\u003c\/li\u003e\n\u003cli\u003eCheck output loop continuity and field device response after completing electrical installation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":44494881980504,"sku":"MC-GHAO21 51305869-175","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/MC-GHAO21-51305869-175-3_1200x1200_413ded25-a76b-4283-b6b2-5f8289251f83.jpg?v=1785749766","url":"https:\/\/www.industriaxplc.com\/ar\/products\/honeywell-mc-ghao21-galvanically-isolated-analog-output-fta","provider":"IndustriaX Limited","version":"1.0","type":"link"}