Check the insulation coefficient 2.2 Thermal resistance temperature sensing element 2.2.1 Check the insulation factor must be greater than 20MΩ, were measured using a multimeter power block thermal resistance between the two electrode wiring insulation resistance of the resistor casing wear thermal resistance production, and the measured resistance values ??were greater than 20MΩ qualified. Or 250V shake table measuring thermal resistance between the resistance of each pole and greater than 20MΩ. In making the shake table to measure are forbidden to access both ends of the poles on both sides of the thermal resistance shake table to avoid the breakdown of thermal resistance, heat damage resistance. 2.3 RTD 2.3.1 visual inspection to check the overall appearance of the thermal resistance of the appearance of integrity, its overall appearance should be complete, coating non-shedding, thermal resistance junction box wholesale unscored wear thermal resistance, good seal, fixing screws complete. 2.4 for medium temperature pressure sleeve, metal inspection by metal chamber. Steel materials shall comply with the requirements, and should be resistant to 1.25 times the working pressure of the tightness test (within one minute shall not disclose), there should not be any impurities within the casing. Wear thermal resistance, measured from the force meter, wear thermal resistance force measuring quotes provided by Shanghai Automation Instrumentation Co., Wear thermal resistance, measured from the force meter, wear thermal resistance offer is Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Hua powder.