KAIDI best rosemount temperature transmitter supply for industrial

Company Advantages
1. KAIDI smart temperature transmitter passes many Lens and Optical testings which include luminous transmittance, UV transmittance, blue-light transmittance, and anti-reflection luminous reflectance. This product has a wide range of operating temperatures
2. The product's energy efficiency helps reduce the use of energy amount, which also directly influences the costs paid on production. This product has the advantage of chemical resistance
3. The product features sturdy construction. It is fabricated in the closed mold through RTM technology that meets the requirement of dimensional accuracy and stability. This product has a high level of IP
4. The product is hypoallergenic. All allergens caused by the glues, dyes, or chemical additives are all eliminated and the fabrics with fewer irritants are chosen. It generates only little magnetic interference
5. The product has enough elasticity. The density, thickness, and yarn twist of its fabric are totally enhanced during the processing. This product is notable for its strong overload capacity

Platinum resistance thermometers (PRTs) offer excellent accuracy over a wide temperature range (from –200 to +850 °C). Standard sensors are are available from many manufacturers with various accuracy specifications and numerous packaging options to suit most applications. Unlike thermocouples, it is not necessary to use special cables to connect to the sensor.

The principle of operation is to measure the resistance of a platinum element. The most common type (PT100) has a resistance of 100 ohms at 0 °C and 138.4 ohms at 100 °C. There are also PT1000 sensors that have a resistance of 1000 ohms at 0 °C.

The relationship between temperature and resistance is approximately linear over a small temperature range: for example, if you assume that it is linear over the 0 to 100 °C range, the error at 50 °C is 0.4 °C. For precision measurement, it is necessary to linearise the resistance to give an accurate temperature. The most recent definition of the relationship between resistance and temperature is International Temperature Standard 90 (ITS-90).

The linearization equation is:

Rt = R0 * (1 + A* t + B*t2 + C*(t-100)* t3)

Where:

Rt is the resistance at temperature t, R0 is the resistance at 0 °C, and
A= 3.9083 E–3
B = –5.775 E–7
C = –4.183 E–12 (below 0 °C), or
C = 0 (above 0 °C)

For a PT100 sensor, a 1 °C temperature change will cause a 0.384 ohm change in resistance, so even a small error in measurement of the resistance (for example, the resistance of the wires leading to the sensor) can cause a large error in the measurement of the temperature. For precision work, sensors have four wires- two to carry the sense current, and two to measure the voltage across the sensor element. It is also possible to obtain three-wire sensors, although these operate on the (not necessarily valid) assumption that the resistance of each of the three wires is the same.

Company Features
1. Guangdong Kaidi Energy Technology Co., Ltd. uses high technology to greatly improve the quality of rosemount temperature transmitter .
2. Guangdong Kaidi Energy Technology Co., Ltd. aims to achieve the joint growth of the enterprise value and customer value. Ask online!