{"product_id":"omron-k3hb-rnb-c2-k3hb-series-digital-rotary-pulse-indicator","title":"Omron K3HB-RNB-C2 K3HB Series Digital Rotary Pulse Indicator","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered for high-speed rotational measurement, the Omron K3HB-RNB-C2 serves as a highly precise digital rotary pulse indicator within demanding industrial automation frameworks. Designed to support rotary pulse inputs up to \u003cstrong\u003e50 kHz\u003c\/strong\u003e, this device provides instantaneous, high-resolution velocity and rotation metrics. The unit integrates an NPN\/voltage pulse sensor input configuration and utilizes four independent \u003cstrong\u003eSPST-NO relay outputs\u003c\/strong\u003e for critical limit monitoring (HH, H, L, LL). Its multi-color display dynamically changes color based on alarm status, providing field operators with immediate visual confirmation of system performance.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Pulse Processing:\u003c\/strong\u003e Capable of accurate signal evaluation up to 50 kHz for rapid shaft rotation and line speed monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Sensor Input:\u003c\/strong\u003e Designed to interface natively with NPN open-collector or voltage pulse sensors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuad Limit Relay Outputs:\u003c\/strong\u003e Provides dedicated SPST-NO contacts for High-High (HH), High (H), Low (L), and Low-Low (LL) limit controls.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDynamic Visual Feedback:\u003c\/strong\u003e Visual alert status communicated through a dual-color process value display.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Environment Adaptation:\u003c\/strong\u003e Engineered to maintain operations in ambient temperatures ranging from -10 to 55 degC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eRotational speed (RPM) monitoring of industrial electric motors and turbines.\u003c\/li\u003e\n  \u003cli\u003eConveyor line velocity tracking and throughput measurement in packaging systems.\u003c\/li\u003e\n  \u003cli\u003eFlow meter pulse integration for volumetric rate monitoring.\u003c\/li\u003e\n  \u003cli\u003eOperational safety interlock systems requiring overspeed or underspeed trip detection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications Table\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border: 1px solid #e2e8f0;\"\u003eValue \/ Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eOmron\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eK3HB-RNB-C2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eK3HB Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eInput Sensor Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eNB (NPN input \/ voltage pulse input)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eRelay Output Configuration\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eC2 (Relay contact: HH, H, LL, L; SPST-NO each)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eNominal Supply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e100 to 240 VAC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eMaximum Measurement Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e50 kHz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eAmbient Operating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e-10 to 55 degC (no icing or condensation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eAmbient Operating Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e25% to 85% RH\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eStorage Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e-25 to 65 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eMaximum Operating Altitude\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e2000 m\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eDevice Base Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eApprox. 300 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e1.5 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe K3HB series serves as the modern standard update to legacy Omron K3N indicators. While functional similarities exist, please note that wiring structures and rear terminal blocks differ significantly. Panel cutouts are standardized, but back-of-panel depth clearances must be verified during system retrofits to accommodate the output terminal configuration on the K3HB-RNB-C2.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen utilizing the maximum 50 kHz measurement range, standard sensor wiring is highly susceptible to electromagnetic interference (EMI). Run signal lines in independent, grounded steel conduits separate from high-current motor leads or Variable Frequency Drive (VFD) output cables to prevent false triggering. Keep the cable length to the sensor as short as possible to prevent signal attenuation.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure that the internal parameter settings match the connected sensor type (NPN open-collector versus voltage pulse). Failing to configure this software parameter correctly may result in zero pulse registration or risk overloading the internal signal pull-up circuit. Always apply shielded twisted-pair (STP) cabling for the input connections.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to wiring or mounting the K3HB-RNB-C2 unit, verify that all incoming AC power distribution sources are physically locked out and tagged out. Hazardous voltages remain present on terminal contacts during operation. Do not touch terminals while supply power is active.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; color: #2d3748;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003ePrepare a standardized 1\/8 DIN panel cutout (92 mm x 45 mm) and slide the unit through the panel front, ensuring the rubber sealing gasket is flat against the surface.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eSecure the unit into the panel using the provided side mounting fixtures, tightening the screws evenly to ensure a secure dust and water-resistant fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eAttach the sensor input cables to the designated NB terminals using properly sized crimped ferrule connectors to ensure permanent gas-tight contacts.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eConnect the 100 to 240 VAC power line to the primary power input terminals, re-check terminal polarity, and proceed to device parameter configuration.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077905375595,"sku":"K3HB-RNB-C2","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/k3hb-rnb-c2-nspgaiwio3z.png?v=1775733859","url":"https:\/\/www.plcprotech.com\/products\/omron-k3hb-rnb-c2-k3hb-series-digital-rotary-pulse-indicator","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}