{"product_id":"sr618c6-differential-controller","title":"SR81 Differential Solar Controller","description":"\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eTechnical Documents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003ch1\u003e\u003cspan\u003eSR81 Differential Solar Controller\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eThe Basic differential Solar controller calculates the temperature difference between collector sensor T1 and tank sensor T2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the solar circulation pump (R1) will be switched on and the tank will be loaded until the switch-off temperature difference or the maximum tank temperature is reached.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SR81 Solar Controller\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/Untitled_16906ea8-bdfe-4247-a8fc-a23dea981807_large.png?v=1542385978\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSupply includes:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 * SR81 controller \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * accessory bag \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * user manual \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 * PT1000 Solar Collector Temperature sensor (φ6*50mm,cable length 1.5meter) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 * NTC10K Tank Temperature sensor (φ6*50mm,cable length 3meter) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 *10A power cable ( Note: controller for 3000W electrical heater has no power cable delivered, user should prepare a cable of 2.5mm2)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003eInput ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eT1: PT1000 temperature sensor, for measuring the temperature of collector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eT2 ~T5: NTC10K, B=3950 temperature sensor, for measuring temperature of tank and pipe.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFRT: For rotary vane type electronic flow meter\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cstrong\u003e1500W Output ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInput Ports L, N: for power connection, L: live wire, N: zero wire, protective wire, with 10A power plug.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput R1: Electromagnetic relays, Max. Current: 2A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput R2: Electromagnetic relays, Max. Current: 2A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput R3: Electromagnetic relays, Max. Current: 2A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOutput HR: Electromagnetic relays, designed for on\/off control of back-up heating device, Max. Current: 10A ( @AC230V, for 1500W electrical heater, @110VAC, for 750W electrical heater)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/SR81-EN-20160721.pdf?494561603904212349\" target=\"_blank\" title=\"Manual\" rel=\"noopener noreferrer\"\u003e\u003cimg alt=\"Manual\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/8.png?v=1707225494\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/SR81-EN-DC12V-20160822.pdf?3948\" target=\"_blank\" title=\"12VDC Manual\" rel=\"noopener noreferrer\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/Submittal_4_a0d034e0-f641-47f9-a306-c15f67540753.png?v=1707244273\" alt=\"Manual 12VDC VERSION\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/Submittal_4_a0d034e0-f641-47f9-a306-c15f67540753.png?v=1707244273\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch5\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hydro Solar","offers":[{"title":"120\/240VAC","offer_id":29518338949181,"sku":"19000310","price":114.19,"currency_code":"USD","in_stock":true},{"title":"12VDC","offer_id":7095782637629,"sku":"19000320","price":114.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/products\/sr81-differential-solar-controller-3969145536573.jpg?v=1578947017","url":"https:\/\/hydrosolar.ca\/en-us\/products\/sr618c6-differential-controller","provider":"Hydro Solar Innovative Energy","version":"1.0","type":"link"}