{"product_id":"viconics-r850v-8-8-stage-low-voltage-step-controller-with-vernier-output","title":"Viconics R850V-8 8-Stage Low-Voltage Step Controller with Vernier Output","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eViconics R850V-8 is an eight-stage low-voltage step controller designed for precise modulation of multi-stage heating applications. It is commonly used with electric duct heaters and provides an integrated vernier output for proportional control of the total heating capacity.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable style=\"width: 99.941%; height: 372.282px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eViconics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eR850V-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eHVAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eElectric Heater Step Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eR850V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eLow-Voltage Step Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eStage Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e8 stages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e24 VAC -15%, +10%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e4 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eControl Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e0–10 VDC, 4–20 mA, 0–135 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003e0–10 VDC Vernier Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e5 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003ePulsed Vernier Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e6 VDC, 30 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eRelay Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eIsolated relay, 30 VAC, 1.0 A maximum per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eSequencing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eLIFO or FIFO selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e0–80°C (32–176°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e0–95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eExpansion Capability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003eUp to 16 stages using master\/slave configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.6604%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.9207%; height: 19.5938px;\"\u003e 2 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About R850V-8\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe R850V-8 is part of the Viconics R850V series of microcomputer-based step controllers for electric heating and other staging applications. It operates from 24 VAC and accepts standard 0–10 VDC, 4–20 mA, and 0–135 ohm control signals. The controller provides eight selectable stages with adjustable inter-stage timing and configurable LIFO or FIFO sequencing. Its vernier stage can provide either 0–10 VDC analog output for SCR control or a pulsed signal for SSR applications.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eEight-Stage Control: Provides up to eight independently sequenced heating stages.\u003c\/li\u003e\n\u003cli\u003eVernier Output: Provides proportional modulation from 0–100% of total load capacity.\u003c\/li\u003e\n\u003cli\u003eMultiple Input Signals: Accepts 0–10 VDC, 4–20 mA, and 0–135 ohm control signals.\u003c\/li\u003e\n\u003cli\u003eAdjustable Timing: Allows configuration of inter-stage delays for controlled equipment sequencing.\u003c\/li\u003e\n\u003cli\u003eLIFO\/FIFO Sequencing: Supports selectable last-in-first-out or first-in-first-out operation.\u003c\/li\u003e\n\u003cli\u003eSCR Compatibility: Provides a 0–10 VDC vernier signal for proportional SCR power control.\u003c\/li\u003e\n\u003cli\u003eSSR Compatibility: Supports pulsed vernier output for solid-state relay applications.\u003c\/li\u003e\n\u003cli\u003eExpandable Control: Can operate as a master with another R850V unit for up to 16 stages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe R850V-8 delivers the staging flexibility and proportional control required for reliable multi-stage electric heating applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Viconics","offers":[{"title":"Default Title","offer_id":52568665751850,"sku":"R850V-8","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l960_2f2a5907-70d1-47af-adcc-ec5dfa4f60fb.webp?v=1789121334","url":"https:\/\/iqelectro.com\/products\/viconics-r850v-8-8-stage-low-voltage-step-controller-with-vernier-output","provider":"IQElectro","version":"1.0","type":"link"}