{"product_id":"cod-test-tube-heater-hi839800","title":"COD Test Tube Heater - HI839800-02","description":"\u003cp\u003eThe HI839800 COD Test Tube Heater features two predefined temperature profiles: 150℃ and 105℃. Digestions for chemical oxygen (COD) and total phosphorus are conducted at 150℃, while total nitrogen digestions are conducted at 105℃. The test tube heater automatically heats up to the set temperature, holding it until the countdown timer has finished. Once the timer has ended, a beep will sound and the heating element will turn off. The outer casing of the HI839800 remains cool to the touch, even during a timed digestion. An optional lab safety shield and test tube cooling rack provide a complete setup for sample digestions.\u003c\/p\u003e\n\u003ch4\u003eFeatures at-a-glance\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePredefined Temperature Settings\u003c\/strong\u003e - The test tube heater features two predefined temperature profiles at 150℃ (221℉) and 105℃ (301℉) that can be selected at the press of a button.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature Alerts\u003c\/strong\u003e - The HI839800 alerts users in the event that the temperature of the heating block is either above or below the set temperature. A timer icon reminds users to wait until the heating block has cooled or warmed up before inserting their samples.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in Timer\u003c\/strong\u003e - A built-in countdown timer of up to 180 minutes allows users to easily set the required digestion time by simply pressing the up and down arrows. Once a time has been set and the heating element is stable, a press of the START button begins the digestion procedure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStatus Indicator Lights\u003c\/strong\u003e - Three LED lights are featured on the HI839800. A green LED indicates the heater has been turned on; a yellow LED indicates when the heater is actively heating up to a set temperature; a red LED indicates when the heater goes above 50℃, reminding the user that the aluminum element is hot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverheating Prevention\u003c\/strong\u003e - The HI839800 contains a thermal fuse that prevents overheating. Should overheating occur, the heater automatically shuts down and all LED indicator lights turn off.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReference Temperature Well\u003c\/strong\u003e - In addition to the 25 vial capacity of the aluminum heating block, a small well is available for a temperature probe for users that wish to verify their heating block.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo Operating Modes\u003c\/strong\u003e - The HI839800 features two operating modes: idle and heating. Idle mode is the default mode in which the heater measures and displays the current temperature, target temperature, set reaction time, and an “idle” tag. Heating mode is activated when users press the START button; it starts when actively heating and continues during the countdown timer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContinuous LCD Display\u003c\/strong\u003e - The block temperature is continuously displayed on the easy to read LCD display, even when there is no active temperature program running. All relevant information in addition to temperature are easily visible during idle and heating mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eError Messages\u003c\/strong\u003e - Messages on display alerting to problems including high or low temperature, hot surface, or heating system malfunction.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI839800-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003eCOD Test Tube Heater - HI839800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eHI 839800-01 115 Vac; 60 Hz; 250 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e5 to 50°C (41 to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e190 x 300 x 95 mm (7.5 x 11.8 x 3.7 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapproximately 4.8 kg (10.6 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI839800 is supplied with a power cable and instruction manual.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/manuals.hannainst.com\/HI839800-01\" target=\"_blank\" rel=\"noopener\"\u003eCOD Test Tube Heater - HI839800\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871394136433,"sku":"HI839800-02","price":182513.25,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi839800.jpg?v=1792646373","url":"https:\/\/hannainst.in\/products\/cod-test-tube-heater-hi839800","provider":"hanna","version":"1.0","type":"link"}