Description

Model Indexing, Temperature measurement range Precision grade Tolerances WZP Pt**0 ****-***0 Grade A ± ( 0.*5*0.**2) ltl Grade B ± ( 0.*0*0.**5) ltl WZC Cu*0 Cu**0 ***-***0 **- ± ( 0.*0*0.**5) ltl WZ series of industrial thermal resistance as a temperature sensor, usually is with the temperature transmitter, and the regulator, and assorted instruments process control systems for the direct measurement or control of the production process ***0 ° C ***0 ° C within the liquid, steam and gas MEDIA and the solid surface temperature. Thermal resistance is the use of substances in the temperature change itself also with the resistance changes to measurement of temperature. When measured in the temperature-body whose existence, the measured temperature is the temperature of the components of the media in the average temperature. Despite the appearance of various thermal resistance vary, their basic structure is broadly similar to felt normal temperature components, insulation casing to protect tubes, and wiring boxes, and other major components Features: ·High temperature measurement accuracy; ·The high mechanical strength, good pressure performance; ·High quality film resistor element, reliable and stable properties. Principle: Thermal resistance is the use of substances in the temperature changes, as also its resistance changes to the measurement of temperature. When the resistance change, the instrument will work showed resistance value corresponding to the temperature. The main technical parameters: Products implementing the standards IEC**4 IEC***5 GB/T*********7 JB/T******1 Insulation resistance at normal temperature: Thermal resistance at ambient temperature for *5 - *5 ° C, relative humidity of less than *0%, test voltage of *0 - **0V (DC) between the electrode and the jacket pipe insulation resistance> **0 megohms.