{"id":1582085829,"title":"HANNA HI 304N-2 Auto-Reverse Magnetic Stirrer with Tachometer","handle":"hi304n-2","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"Product-Body\"\u003e\n\u003cp\u003eWhen stirring a solution. to work with a constant speed is an important factor in ensuring that the best repeatability in tests and processes is achieved. Without a tachometer. there is no way of knowing the RPMs.\u003c\/p\u003e\n\u003cp\u003eHI 304N is a heavy-duty stirrer with a built-in tachometer. It is often desirable to stir in two directions in order to achieve maximum homogeneity. An advanced circuit allows HI 304N to reverse the direction of the stir at a user selected interval. The interval can be adjusted from 30 seconds up to 3 minutes. In addition to precision speed control. a limiter will also assure that the \u003cspan id=\"pf78sx_2\" class=\"pf78sx\"\u003emaximum speed\u003c\/span\u003e will never be exceeded (Speedsafe™). Often. a sample is removed from the stirrer before the uses reduces the speed with ordinary stirrers. This can cause the motor to accelerate until it is destroyed. HANNA stirrers incorporate a VCO device that will stop the motor from accelerating as soon as the load is removed.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e\u003cbr\u003eThe HI 304N magnetic stirrer. \u003cspan id=\"pf78sx_1\" class=\"pf78sx\"\u003estainless steel cover\u003c\/span\u003e. micro stir bar and instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/hannainst.com\/images\/HI_304Chart.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"TabbedPanels1\" class=\"TabbedPanels\"\u003e\n\u003cdiv class=\"TabbedPanelsContentGroup\"\u003e\n\u003cdiv class=\"TabbedPanelsContent TabbedPanelsContentVisible\"\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Stirring Capacity\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e2.5 liters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003e100 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e800 to 1000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTachometer\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e4-digit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse Interval\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003efrom 30 seconds to 3 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e110\/115 Vac or 230\/240 Vac. 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Category\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover Material\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAISI 316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e180 x 180 x 70 mm (7.1 x 7.1 x 2.8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1.4 kg (3.1 lb.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eAccessories\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"http:\/\/hannainst.com\/usa\/prods2.cfm?id=013001\u0026amp;ProdCode=HI%20731320\"\u003eHI 731320\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStir Bars for HI 300 Series \u003cspan id=\"pf78sx_3\" class=\"pf78sx\"\u003eMagnetic Stirrers\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"pf78sx\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\u003cstrong\u003eProduct Manuals\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/hannainst.com\/usa\/images\/icon-pdf.gif\" alt=\"\" width=\"20\" height=\"22\" align=\"absmiddle\" border=\"0\"\u003e\u003cspan\u003e  Manual: \u003c\/span\u003e\u003ca title=\"Download Product Manual\" href=\"http:\/\/hannainst.com\/manuals\/manStirrers.pdf\" target=\"_blank\"\u003eDownload\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2026-06-25T16:29:38+12:00","created_at":"2015-09-01T15:05:14+12:00","vendor":"Hanna Instruments","type":"Stirrers","tags":["Category_Stirrers","Features_Auto-Reverse","Features_Tachometer","Manufacturer_Hanna Instruments","Type_Magnetic"],"price":75000,"price_min":75000,"price_max":75000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":4857110725,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"HI304N-2","requires_shipping":false,"taxable":true,"featured_image":null,"available":true,"name":"HANNA HI 304N-2 Auto-Reverse Magnetic Stirrer with Tachometer","public_title":null,"options":["Default Title"],"price":75000,"weight":0,"compare_at_price":null,"inventory_quantity":1,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/acornsci.co.nz\/cdn\/shop\/products\/hi304_400_2015.jpeg?v=1465536591"],"featured_image":"\/\/acornsci.co.nz\/cdn\/shop\/products\/hi304_400_2015.jpeg?v=1465536591","options":["Title"],"media":[{"alt":"HI 304N-2 Auto-Reverse Magnetic Stirrer with Tachometer - Acorn Scientific","id":21272526947,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/acornsci.co.nz\/cdn\/shop\/products\/hi304_400_2015.jpeg?v=1465536591"},"aspect_ratio":1.0,"height":400,"media_type":"image","src":"\/\/acornsci.co.nz\/cdn\/shop\/products\/hi304_400_2015.jpeg?v=1465536591","width":400}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv id=\"Product-Body\"\u003e\n\u003cp\u003eWhen stirring a solution. to work with a constant speed is an important factor in ensuring that the best repeatability in tests and processes is achieved. Without a tachometer. there is no way of knowing the RPMs.\u003c\/p\u003e\n\u003cp\u003eHI 304N is a heavy-duty stirrer with a built-in tachometer. It is often desirable to stir in two directions in order to achieve maximum homogeneity. An advanced circuit allows HI 304N to reverse the direction of the stir at a user selected interval. The interval can be adjusted from 30 seconds up to 3 minutes. In addition to precision speed control. a limiter will also assure that the \u003cspan id=\"pf78sx_2\" class=\"pf78sx\"\u003emaximum speed\u003c\/span\u003e will never be exceeded (Speedsafe™). Often. a sample is removed from the stirrer before the uses reduces the speed with ordinary stirrers. This can cause the motor to accelerate until it is destroyed. HANNA stirrers incorporate a VCO device that will stop the motor from accelerating as soon as the load is removed.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e\u003cbr\u003eThe HI 304N magnetic stirrer. \u003cspan id=\"pf78sx_1\" class=\"pf78sx\"\u003estainless steel cover\u003c\/span\u003e. micro stir bar and instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/hannainst.com\/images\/HI_304Chart.jpg\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"TabbedPanels1\" class=\"TabbedPanels\"\u003e\n\u003cdiv class=\"TabbedPanelsContentGroup\"\u003e\n\u003cdiv class=\"TabbedPanelsContent TabbedPanelsContentVisible\"\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Stirring Capacity\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e2.5 liters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003e100 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e800 to 1000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTachometer\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e4-digit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse Interval\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003efrom 30 seconds to 3 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e110\/115 Vac or 230\/240 Vac. 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Category\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover Material\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAISI 316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e180 x 180 x 70 mm (7.1 x 7.1 x 2.8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1.4 kg (3.1 lb.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eAccessories\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"http:\/\/hannainst.com\/usa\/prods2.cfm?id=013001\u0026amp;ProdCode=HI%20731320\"\u003eHI 731320\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStir Bars for HI 300 Series \u003cspan id=\"pf78sx_3\" class=\"pf78sx\"\u003eMagnetic Stirrers\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"pf78sx\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\u003cstrong\u003eProduct Manuals\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/hannainst.com\/usa\/images\/icon-pdf.gif\" alt=\"\" width=\"20\" height=\"22\" align=\"absmiddle\" border=\"0\"\u003e\u003cspan\u003e  Manual: \u003c\/span\u003e\u003ca title=\"Download Product Manual\" href=\"http:\/\/hannainst.com\/manuals\/manStirrers.pdf\" target=\"_blank\"\u003eDownload\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"}