1. Thermal resistance is the use of material changes in temperature itself also with the change of the resistance characteristics to measure the temperature. Heated portion of the thermal resistance (temperature sensing element) is a thin metal wire uniformly wound on a double frame made of insulating material, when measured medium temperature gradient is present, the measured temperature in the range of temperature sensing element the average temperature of the dielectric layer.
2. The main technical parameters
Name platinum resistance
Indexing number Pt100
Temperature range -200 ~ 500 ℃
Class A tolerance ± (0.15 + 0.002|t|) ℃
Class B ± (0.30 + 0.005|t|) ℃
3. Thermal response time
Thermal response time is a function of temperature in the step, the output value of the equivalent thermal resistance changes when a step change of 50%, the time required by τ0.5 to represent.
Thermal resistance thermal response time reference value
Diameter (mm) Φ3 Φ4 Φ5 Φ6 Φ8
τ0.5 (s) ≤3 ≤5 ≤8 ≤12 ≤18
Note: When the armored element and an outer protective tubes sheathed armored thermal resistance machine, due to the protective tube diameter and wall thickness is much larger than the sheath, so the thermal response time depends on the dynamic response of the protective tube
4. Temperature insulation resistance
Thermal resistance at an ambient temperature of 15-35 ° C, relative humidity less than 80%, the test voltage is 10-100V (DC) insulation resistance between the electrode and the jacket pipe> 100MΩ
Room temperature ≥2000MΩ
High temperature (500 ℃) ≥300MΩ
Measuring end structure types
5. Protection tube material is generally 1Cr18Ni9Ti 0Cr18Ni12Mo2Ti
Trụ Sở: 939/1A Kha Vạn Cân, P. Linh Tây, Q. Thủ Đức, Tp. HCM.
CN: 1/2 Chương Dương, Linh Chiểu, Q. Thủ Đức, Tp. HCM.
Email: email@example.com. Skype ID: thegioiic, vinaautomation.
Công ty TNHH Giao Lộ. GPKD số: 0311 641 951. TP. HCM cấp 19/03/2012