{"product_id":"hima-f3238-safety-input-module","title":"HIMA F3238 Safety Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eHIMA F3238\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eF-3238\u003c\/strong\u003e Safety Input Module, operates as a dedicated hardware component for safety-critical discrete sensor signal acquisition within HIMA Safety Instrumentation System (SIS) platforms. It processes inputs from safety-related proximity switches, DIN 19234 (NAMUR) devices, and resistor-wired field contacts while providing continuous channel supervision.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSub-Assembly Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunctional Hardware Specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eF3238\u003c\/td\u003e\n\u003ctd\u003eBase 8-channel fail-safe input module for safety systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF-3238\u003c\/td\u003e\n\u003ctd\u003eAlternate factory designation for standard 8-channel NAMUR\/contact input card\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\u003eF3238 (F-3238)\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\u003e0.30 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard HIMA rack-mount card 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\u003ePowered via backplane bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e8 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Sensors\u003c\/td\u003e\n\u003ctd\u003eNAMUR proximity switches (DIN 19234), resistor-wired contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Classification\u003c\/td\u003e\n\u003ctd\u003eAK 1 to AK 6 (up to SIL3 certification execution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Monitoring\u003c\/td\u003e\n\u003ctd\u003eShort-circuit and wire-break detection per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSIL3 Certification and Fail-Safe State Execution\u003c\/h3\u003e\n\u003cp\u003eDesigned for high-integrity safety instrumented systems, the F3238 module incorporates internal diagnostic test cycles to ensure continuous fail-safe state execution. Integrated automatic self-test routines run concurrently during normal operation to verify output switch-on\/switch-off response times, input filter response times, and sensor loop integrity.\u003c\/p\u003e\n\u003cp\u003eTo prevent undetected hardware faults, the module performs a periodic active walking 0 test across input channels for real-time crosstalk suppression and fault isolation. Any detected internal hardware failure, short-circuit, or sensor line break forces the affected channel directly into a defined fail-safe state, maintaining SIL3 certification integrity without interrupting valid redundant processing channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the F3238 detect sensor wire-break and short-circuit faults on mechanical contacts?\u003c\/p\u003e\n\u003cp\u003eA: Mechanical contacts must be fitted with external line-end resistors (resistor-wired setup). The module monitors loop current levels against predefined threshold windows corresponding to open-circuit, closed-circuit, short-circuit, and wire-break conditions.\u003c\/p\u003e\n\u003cp\u003eQ: Can the F3238 be replaced while the safety system rack remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided the system cabinet rack configuration supports hot-swap operations and safety logic redundancies are locked to prevent spurious safety trips during module removal and insertion.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower down the targeted rack slot or follow site-specific live-insertion safety permits prior to inserting the module into the subrack.\u003c\/li\u003e\n\u003cli\u003eVerify that field wiring for mechanical switches contains the required end-of-line and series resistors before connecting field terminal blocks.\u003c\/li\u003e\n\u003cli\u003eEnsure all NAMUR field signal wires are routed in dedicated instrument trays, maintaining separation from high-voltage AC lines to minimize electrical noise coupling.\u003c\/li\u003e\n\u003cli\u003eGround all shielded signal cables at a single designated cabinet earthing busbar to prevent ground potential loops.\u003c\/li\u003e\n\u003cli\u003eInspect edge connectors for bent pins or contamination before locking the module retention screws to the rack frame.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"HIMA","offers":[{"title":"Default Title","offer_id":45474373632115,"sku":"F3238","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/F3238_Cocoai_15e68a0a-d407-4115-8e15-57f8422612fb.jpg?v=1789109625","url":"https:\/\/www.dcssupplier.com\/ar\/products\/hima-f3238-safety-input-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}