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FAQ’s

FAQ’s. What is an Elstein ceramic infrared radiator? Elstein ceramic infrared radiators are electrical heating elements consisting mainly of a technical ceramic being high-temperature resistant. FAQ’s. Which advantages do an Elstein electric infrared heater have?

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FAQ’s

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  1. FAQ’s • What is an Elstein ceramic infrared radiator? • Elstein ceramic infrared radiators are electrical heating elements consisting mainly of a technical ceramic being high-temperature resistant

  2. FAQ’s • Which advantages do an Elstein electric infrared heater have? • Elstein electric IR heaters have among others the following advantages: • Long service life due to an embedded heating coil. • Can be controlled with an accuracy of 1°C due to an integrated thermocouple. • Surface is clean and does not oxidize. • Suitable for food sector. • Available in many sizes, wattages and operating voltages. • Quick mounting or replacement due a simple fastening system.

  3. FAQ’s • What is the wavelength of an Elstein ceramic infrared emitter? • Elstein electric IR emitters provide only the non-visible infrared radiation and no visible or rather hardly visible light. The emitted infrared radiation covers the medium and long-wave infrared range of 2 - 10 µm.

  4. FAQ’s • Can an Elstein infrared radiant heater be controlled? • A large number of Elstein infrared radiant heaters can be supplied with a thermocouple which is embedded in the radiation surface. In connection with our TRD 1 Temperature Control Units and TSE Power Switches the temperature of the radiators can be controlled with an accuracy of +/- 1°C.

  5. FAQ’s • How long is the service life of an Elstein infrared radiant element? • The durability is primarily influenced by the temperatures reached during use. For example, an HLS at 1100 °C in continuous operation has an average service life of 2000 hours. An SHTS with 900 °C on the other hand reaches about 8000 hours. Radiators with a low power often reach more than double this useful life. On the other hand, there are applications in which the radiators can fail after 1000 hours due to materials, which attack the heating coil or the ceramic. Such materials are, for example, chlorine, fluorine, hydrofluoric acid, sodium hydroxide, nitrogen and peroxide.

  6. FAQ’s • Can an Elstein infrared radiant emitter be used in vacuum? • Yes, Elstein infrared radiant emitters can be used in vacuum. Only the HLS series cannot be used.

  7. FAQ’s • Can Elstein infrared radiant heating elements be used to heat metals? • Bright metal shows a relatively weak absorption of infrared radiation. However, corroded, roughened, coated, enameled or painted metal can reach an absorption degree of more than 90%.

  8. FAQ’s • What is the optimal distance between infrared radiators and good to be heated? • In the case of heat-sensitive goods (paper, thin foils) the radiation distance should not be less than 50 mm. If the radiators are not mounted densely next to each other, the distance must be larger if the goods to be heated are stationary. If the distance between radiators is 3 - 4 cm, a distance between radiators and goods of 15 - 20 cm is required in order to achieve uniform heating.

  9. FAQ’s • Does an Elstein infrared radiant heater fulfill clean room requirements? • Yes. For decades Elstein infrared radiant heaters have been used in clean rooms class 100 or better. They are used in semiconductor production, in the pharmaceutical industry and in manufacturing picture tubes. Elstein Infrared Radiators are also used in the production of modern TFT displays.

  10. FAQ’s • Are Elstein infrared heaters susceptible to splash water? • When hot, Elstein infrared emitters are splash resistant. If the radiators get in touch with water when they are cold, they must subsequently dry at a low temperature (max. 80°C) for a few minutes.

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