{"product_id":"westinghouse-7379a91g02-analog-input-modules","title":"Westinghouse 7379A91G02 Analog Input Modules","description":"\u003cp\u003eThe \u003cstrong\u003eWestinghouse 7379A91G02\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e7379A91G02\u003c\/strong\u003e QAA Card, operates as a dedicated hardware component for analog input signal conditioning and process loop monitoring within Westinghouse Q-Line automation platforms.\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\u003e7379A91G02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWestinghouse\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\u003e0.85 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Q-Line printed circuit card enclosure format\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\u003e5.0 W maximum (backplane supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Series\u003c\/td\u003e\n\u003ctd\u003eQ-Line Architecture (QAA Analog Input Card)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGroup Variant\u003c\/td\u003e\n\u003ctd\u003eG02 specific component matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDirect edge connector chassis insertion\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 \u003cstrong\u003eWestinghouse 7379A91G02\u003c\/strong\u003e card conditions high-accuracy analog signals originating from field transmitters utilizing the 4-20 mA HART loop protocol. Onboard analog-to-digital conversion stages process current loop signals with continuous filtering, providing accurate process variable representation while allowing digital HART frequency-shift keying (FSK) signals to pass through to supervisory management nodes.\u003c\/p\u003e\n\u003cp\u003eTo protect internal system buses and avoid earth potential loops across distributed instrumentation loops, the card features robust channel-to-channel isolation. This galvanic separation isolates field transmitter wiring from backplane logic power, preventing common-mode voltage spikes and ground currents from interfering with adjacent channel measurements.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 7379A91G02 module support hot-swapping inside a live Q-Line rack?\u003c\/p\u003e\n\u003cp\u003eA: No, power to the local Q-Line card cage segment must be isolated prior to pulling or inserting the card to prevent backplane edge connector damage and bus disturbance.\u003c\/p\u003e\n\u003cp\u003eQ: How is channel isolation verified on the field terminal block?\u003c\/p\u003e\n\u003cp\u003eA: Galvanic channel isolation is built into the card's input circuitry; field connections must strictly follow the channel terminal pinout diagrams without cross-wiring common return leads.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower down the designated Q-Line subrack slot before inserting the module assembly.\u003c\/li\u003e\n\u003cli\u003eAlign the board edges with the card cage guide tracks, sliding the card inward until the rear edge connector seats fully into the backplane socket.\u003c\/li\u003e\n\u003cli\u003eTighten the top and bottom front panel retaining screws to secure the module and complete ground bonding with the chassis.\u003c\/li\u003e\n\u003cli\u003eRoute field 4-20 mA wiring in shielded twisted-pair cables, grounding the shield drain at the dedicated terminal enclosure bus bar only.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":48939965874291,"sku":"7379A91G02","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/4256A84G14_Cocoai_f3cc35c5-aae8-4402-b901-fbd8753e34ef.jpg?v=1790131733","url":"https:\/\/www.dcssupplier.com\/products\/westinghouse-7379a91g02-analog-input-modules","provider":"DcsSupplier Limited","version":"1.0","type":"link"}