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Resistance Thermometers

PT100 (Platinum Resistance Thermometers) can be used in temperature range of -200°C, + 850°C, they have much more reliability than the thermocouples have. They are used in machines, tanks, gas or liquid environments and surface measurements.

Principle of the measurement of temperature is to measure the resistance of platinum element. PT100, which is the most common resistance thermometer, has 100Ohm at 0°C and 138.4 Ohm at 100°C.

The relation between temperature and resistance in small range of temperatures is almost linear. For example, error in 50°C is about 0.4°C if we assume the range from 0°C to 100°C is linear.

The latest definition of the relation between temperature and resistance can be found International Temperature Standards 90 (ITS-90).

Rezistans Termometreler
RESISTANCE THERMOMETERS

OT01 Rezistans Termometreler
 is straght type and do not have mounting bush. B type head is used as standard. OR05 inset is used.
 
OR02 Rezistans Termometreler
 has mouting bush. Standard mounting bush is½". It is assembled just below the head. OR05 inset is used.
 
OR03 Rezistans Termometreler
has mouting bush. The distance between head and mounting bush is 120mm. Standard mounting bush is½". OR05 inset is used. They are preferred in some processes that requires a meaningful distance between head and mouting bush.
 
OR04 Rezistans Termometreler
 has mouting bush. The distance between head and mounting bush is 145mm. Standard mounting bush is½". OR05 inset is used. They are preferred in some processes that requires a meaningful distance between head and mouting bush. If it is ordered with steenless mouting bush and union, it is coded as OR04-A.
 
OR05 Rezistans Termometreler
 has inset. While ordering, inset length should be determined.
OR06 Rezistans Termometreler
 has fixed cable and mounting bush. The temperature of the mounting bush should not be above 100°C. Standard mounting bush is½". Cable length should be determined while ordering.
OR07 Rezistans Termometreler
 is straght type resistance thermometer and has fixed cable. A straight pipe is placed at top of cable. This pipe is producted in various diameters at L1 length.If spring is ordered at cable output, RT is coded as OR07-A.
OR08 Rezistans Termometreler
 is a bayonet type resistance thermometer with fixed cable. Top point of resistance thermometer is fixed into the process with a spring mounting bush. Standard mounting bush is M12x1,5, L length is 300mm and the diameter is 6mm. It can be produced within various lengths. Cable length and cable type should be determined while ordering.
OR09 Rezistans Termometreler
 has fixed cable and portable. Standard types are produced at the diameter of 4,5,6,8mm. It is important to notice while determining the length because of handle that may be effected by temperature.
OR09-A Rezistans Termometreler
 is fixed wired and portable type resistance thermometer. It is used to measure the temperature of straight surfaces. It is used by pressing the surface. If it is ordered with angle, it is coded with OR09-A1.
OR09-B Rezistans Termometreler
 is a portable resistance thermometer that is used in soft environments.(dough,sponge, rubber).
OR09-C Rezistans Termometreler
 is a handleable, fixed cabled portable type resistance thermometer. It is used in non corrosive environments. As it can be seed from image, Pt-100 element is protected because of open areas. So that the environment temperature is measured correctly. If it is ordered with holed protecting tube , it is coded as OR09-C1.
OR10 Rezistans Termometreler
is a miniature type resistance thermometer which is used to measure air temperature with high sensitivity. There is a perforated protector that protects element. Mounting bush is M10x1,5'dur. It can be ordered with glass element also. Glass has higher response time than ceramic element. But it is more expensive than the others. If glass element is ordered, it should be coded with "C" in special parts section.
 
 

 



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