Resistance Thermometers
Resistance thermometers are widely used in various processes from -200 ° C to + 850 ° C. They provide more accurate values than thermocouples, especially at low temperatures. Standards are used for up to 500 ° C, and special types are used for requests up to 500-850 °. Maximum operating temperatures given in the catalogue are for air environment without harmful gases. In environments with intense harmful effects, the service life of resistance thermometers will be shortened depending on to the effects of harmful gases.
Resistance thermometers are used for surface measurements and low and high pressure processes in environments such as machines, tanks, pipes, air, steam, gas, water, oil, etc.
For long-lasting, accurate and reliable operation of resistance thermometers, its element, protective sheath and mounting type should be selected. For the right check the general information section on Resistance Thermometers.
Resistance thermometers Standard DIN 43760 ve IEC 751
Protective Sheath Standard Metal in DIN and AISI
standards
Head Standard A, B and C in DIN 43729 standard type head
Resistance thermometer element gives resistance values in accordance with Pt-100, Pt-1000 and Ni-1000 DIN Standard 43760 or IEC 751 Standard. Pt-100 and Ni-1000 elements have 100 ohm resistance values at 0 ° C.
Resistance thermometers are manufactured with an inset. Inset is a second protector placed inside the outer protective sheath. Resistance thermometer element is placed inside the inset outer sheath and then filled with metal oxide powder. The inset is then placed inside the outer sheath of the resistance thermometer. The biggest advantage of resistance thermometers with inset is that only inset is changed without stopping the process. In addition, by providing only the inset of a resistance thermometer whose other parts such as outer protector and head are intact, more economical material is obtained.
Drawings
OR01 OR02 OR02-EX OR03 OR04 OR05 OR06 OR07 OR07-A OR09 OR08 OR11 OR11-A OR11-B OR11-B1 OR11-C OR11-D OR11-D1 OR12 OR20 OR13 OR14 OR15 OR16 OR30 OR40 OR50 OR60 OR90
