Explosion-proof thermal resistance It is usually connected with display meter, recording meter and computer, etc. to directly measure temperature of liquid vapor gas and solid surface ranging from -200°C-500°C with explosives such as hydrocarbon on production spot. Features: 1, Spring thermal element with good shock-proof performance. 2,High measuring accuracy 3, No compensational wire, spare cost; 4, Imported film resistor with high reliability and stability. Insulation reistance at normal temperature The insulation resistance between electrode and protection tube of the thermocouple shall be no less than 100MΩ under condition thsat enviroment temperature is 15~35°C. Relative humidity is no more than 80%, and testing voltage is D.C 10~100V. |