Temperature transmitter is mainly used for petroleum, chemical, chemical fiber; textile, rubber, building materials; electric power, metallurgy, medicine; food and other industrial fields of field temperature parameters measurement and control. Platinum RTD type temperature transmitter is the current mainstream type. Resistance value with the degree of change in temperature known as the temperature drift coefficient, most temperature transmitter metal material temperature drift coefficient is positive, and many pure metal material temperature drift coefficient in a certain temperature range to remain constant, temperature transmitter specific applications which metal material (platinum, copper, nickel, etc.) depends on the range of temperatures being measured. Platinum metal (Pt) resistance of the temperature response characteristics of the better, lower cost, can be measured at higher temperatures; it is rated at 0 ℃ resistance value is 100 Ω, is a standardized device. Platinum metal (Pt) resistor operating temperature range: -200 ~ +850 ℃, taking into account the practical applications of industry, the temperature transmitter is generally designed for the temperature measurement range of 0 ~ 120 ℃. Because the resistance of the thermistor and the temperature is proportional to the relationship, only need to know the current flowing through the temperature transmitter can be obtained with the temperature proportional to the output voltage. According to the known resistance-temperature relationship, the measured temperature value can be calculated. For product consultation, product customization, agency, technical inquiries, quotes and any other questions, please contact Star Sensor hotline: 400-600-4496 !