WZ series of industrial thermal resistance as temperature measurement sensor, usually with temperature transmitter, regulator and display instrument and other auxiliary use, the composition process control system, with a direct measurement or control of various production processes in the -200 -500 temperature range of liquid, steam and gas medium and solid surface temperature.

Thermal resistance is based on the material in the temperature change resistance itself also as characteristic changes occur to measure the temperature of. When measured in the medium in the presence of a temperature gradient and the measured temperature is average temperature in the temperature sensing element where the medium range.

Although the various thermal resistance of different shapes, but their basic structure is generally similar to the general feeling of temperature components, insulation casing, protective tube, and junction boxes and other major components

The characteristics of the thermal resistance of the assembly

Pressure spring type temperature sensing element, anti vibration performance is good;

High temperature measurement accuracy;

High mechanical strength, good performance;

Imported film resistance element, reliable and stable performance.

Working principle of thermal resistance

Thermal resistance is used to change the temperature of the material, its resistance is also with the characteristics of the occurrence of changes in temperature measurement. When the resistance changes, the instrument will display the corresponding resistance temperature value.

The main technical parameters of the assembled thermal resistance

Product implementation standard

IEC584

IEC1515

GB/T16839-1997

JB/T5582-91

Insulation resistance at room temperature

Thermal resistance at ambient temperature of 15 - 35 C, the relative humidity is not greater than 80%, the test voltage is 10 - 100V (DC) electrode and the insulation resistance between the jacket tube >100M.

Measuring temperature and tolerance

型号	分度号	测温范围	精度等级	允许误差
WZP	Pt100	-200-+500	A级	±(0.15+0.002) ltl
			B级	±(0.30+0.005) ltl
WZC	Cu50 Cu100	-50-+100	---	±(0.30+0.005) ltl