{"product_id":"zr402g-t-e-e-a-h-sct-yokogawa-separate-type-zirconia-oxygen-analyzer-converter","title":"ZR402G-T-E-E-A\/H\/SCT | Yokogawa | Separate type Zirconia Oxygen Analyzer, Converter","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ZR402G-T-E-E-A\/H\/SCT\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eZR402G\u003c\/strong\u003e Separate type Zirconia Oxygen Analyzer, Converter, operates as a dedicated hardware component for continuous gas phase oxygen concentration signal processing within Yokogawa process automation networks.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa ZR402G oxygen analyzer converter uses a structured order option code matrix to specify thread entry interfaces, display languages, protective hardware, and physical tagging.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix \/ Option\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification \u0026amp; Hardware Definition\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eZR402G\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase model converter for separate-type zirconia oxygen measurement systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-T\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConduit thread connection: 1\/2 NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-E\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDisplay language interface: English\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-E\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInstruction manual documentation: English\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard functional revision: Always -A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\/H\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHardware Option: Protective rain and sun hood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\/SCT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaterial Tagging Option: Stainless steel tag plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eZR402G-T-E-E-A\/H\/SCT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 6 kg (Shipping weight 10 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard enclosure sizing for panel\/wall\/pipe mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax 300 W (Approx 100 W nominal operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Type\u003c\/td\u003e\n\u003ctd\u003e320 x 240 dot matrix LCD screen with integrated touchscreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Output Signal\u003c\/td\u003e\n\u003ctd\u003eTwo-point 4-20 mA DC (Maximum load resistance 550 ohm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Output Signal\u003c\/td\u003e\n\u003ctd\u003eFour points (Includes one fail-safe normally open contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Input\u003c\/td\u003e\n\u003ctd\u003eTwo points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Input\u003c\/td\u003e\n\u003ctd\u003eOne point (4-20 mA temperature\/process input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Voltage\u003c\/td\u003e\n\u003ctd\u003eRated 100 to 240 VAC (Operating range 85 to 264 VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Humidity\u003c\/td\u003e\n\u003ctd\u003e0 to 95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Conduit Entries\u003c\/td\u003e\n\u003ctd\u003eEight entry ports (1\/2 NPT interface configured)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Material\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy with polyurethane corrosion-resistant finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; DCS Instrument Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe ZR402G converter processes raw millivolt electromotive force (EMF) signals generated by remote zirconia oxygen detectors. Operating across a dual 4-20 mA HART loop protocol layer, the unit provides high channel-to-channel isolation between internal AC power supplies, detector heater drives, and low-level analog I\/O loops. The hardware incorporates automated dynamic cold junction compensation (CJC) algorithms and sensor diagnostics to track cell resistance and probe response decay. Isolated contact inputs and relay outputs execute automated calibration sequence timing, fault signaling, and blowback purges in coordination with main distributed control systems.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the fail-safe contact output configured inside the ZR402G unit?\u003c\/p\u003e\n\u003cp\u003eA: The converter incorporates four total contact outputs, one of which is specifically configured as a fail-safe relay with a normally open (NO) contact configuration. Upon total loss of AC power supply or critical internal processor fault, this contact drops out to signal an immediate hardware failure state to the DCS.\u003c\/p\u003e\n\u003cp\u003eQ: What load resistance limits apply to the dual isolated 4-20 mA analog outputs?\u003c\/p\u003e\n\u003cp\u003eA: Each 4-20 mA DC current output channel supports a maximum external loop load resistance of 550 ohm. Exceeding 550 ohm causes signal clipping and degrades communication stability when HART field devices or line recorders are connected in series.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the aluminum alloy housing securely to a 2-inch vertical\/horizontal pipe, flat panel, or wall using approved mounting brackets. Ensure the rain hood (\/H) is correctly fitted over the top casing when exposed to outdoor environments.\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum thread engagement of 5 full 1\/2 NPT thread turns on all electrical conduit connections. Seal unused conduit holes with the provided 1\/2 NPT threaded plugs to preserve enclosure weatherproofing.\u003c\/li\u003e\n\u003cli\u003eRoute low-voltage zirconia sensor signal wires and AC power lines in separate grounded metal conduits to prevent inductive noise interference with cell EMF measurements.\u003c\/li\u003e\n\u003cli\u003eGround the main internal and external enclosure chassis lugs to a dedicated low-impedance earth ground point (less than 10 ohm ground resistance).\u003c\/li\u003e\n\u003cli\u003eEnsure operating AC supply voltage remains strictly within 85 to 264 VAC before powering on the converter touchscreen interface.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53438921769269,"sku":"ZR402G-T-E-E-A\/HS\/SCT","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/ZR402G-T-E-E-A.png?v=1788246807","url":"https:\/\/www.5gplc.com\/products\/zr402g-t-e-e-a-h-sct-yokogawa-separate-type-zirconia-oxygen-analyzer-converter","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}