{"product_id":"tzn124-ex-tzn124-hima-safety-input-module","title":"TZN124-EX TZN124 HIMA Safety Input Module","description":"\u003ch2\u003eHIMA TZN124-EX Safety-Related Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for precise analog signal acquisition from 2-wire transmitters in safety instrumented systems, the \u003cstrong\u003eHIMA TZN124-EX\u003c\/strong\u003e (\u003cstrong\u003eTZN124\u003c\/strong\u003e Safety-Related Input Module) provides direct physical\/electrical execution.\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\u003eTZN124-EX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHIMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e128 x 165 x 130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal transmitter supply excitation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e2-wire transmitter signals (pressure, temperature, flow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Processing\u003c\/td\u003e\n\u003ctd\u003eOptional square-root extraction for differential pressure flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n\u003ctd\u003eFull galvanic isolation between input, output, and power circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eRack or panel installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGalvanic Isolation and Fail-Safe State Execution\u003c\/h3\u003e\n\u003cp\u003eThe safety-related input hardware implements complete galvanic isolation across input channels, output stages, and internal power rails to suppress ground loops and eliminate common-mode signal interference. Upon detection of open field loops or out-of-range sensor drift, internal diagnostic routines force the module logic into a predetermined fail-safe state. This architecture prevents unconditioned signal corruption from propagating across safety instrumented system backplanes during critical process shutdowns.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the input channel supply power directly to field transmitters?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module provides 24 VDC loop excitation power directly to connected 2-wire pressure, temperature, or flow transmitters.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle differential pressure flow measurements?\u003c\/p\u003e\n\u003cp\u003eA: The onboard signal conditioning circuitry incorporates optional square-root extraction logic to linearize flow calculations directly before logic transfer.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eFollow these core procedures to maintain signal integrity and ensure safe operation:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eMount the module securely into the designated rack slot or enclosure panel using appropriate mounting hardware.\u003c\/li\u003e\n\u003cli\u003eRoute 2-wire field transmitter wiring separately from high-voltage AC distribution circuits to prevent inductive noise coupling.\u003c\/li\u003e\n\u003cli\u003eTerminate shielded signal wiring at the dedicated cabinet earth bus using short, low-impedance grounding conductors.\u003c\/li\u003e\n\u003cli\u003eVerify that total loop impedance on the 2-wire field circuit remains within limits to guarantee adequate 24 VDC transmitter supply excitation.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"HIMA","offers":[{"title":"Default Title","offer_id":43872830455907,"sku":"TZN124-EX","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/427_919dcda8-f1d5-430f-95dc-257fcc00427b.jpg?v=1764926955","url":"https:\/\/www.autocontrolglobal.com\/products\/tzn124-ex-tzn124-hima-safety-input-module","provider":"AutoControl Global","version":"1.0","type":"link"}