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WZP PT100 Thermal Resistance Platinum Temperature Sensor Probe


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₹ 88.55

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WZP PT100 thermal resistance, platinum resistance, temperature sensor, probe


Diameter 3.98MM (manual measurement, please forgive me for small errors)

Length 29.85MM (manual measurement, please forgive me for minor errors)

Lead length is about 50CM

WZP series platinum thermal resistance element



Platinum thermal resistance is an accurate, sensitive and stable temperature sensor. The platinum thermal resistance element is made of a miniature ceramic tube and a platinum thermal resistance wire wound coil wound inside the hole. 3mm) so it can be made into various miniature temperature sensor probes. Can be used at temperatures ranging from -200 to + 420 ° C.

WZP series platinum thermal resistors are produced in accordance with China's new standard JB / T8622-1997. Because this series of products has the advantages of small structure, wide range of use, good reliability, short thermal response time, etc., it can form a variety of products with multiple specifications for petroleum, chemical, power stations, metallurgy, light industry, food, textile, medical The health, scientific research, agriculture and machinery industries provide a new generation of quality products.


working principle

As a temperature sensor, the platinum thermal resistance element works under the influence of temperature, and the resistance value of the platinum resistance wire changes with temperature. The relationship between temperature and resistance is close to a linear relationship, the deviation is extremely small, and with time, the deviation can be ignored, and the electrical performance is stable.

Note: ① The tolerance of Class A is not applicable in the temperature range of t ﹥ 650 ℃, and it is not suitable to use the two-wire system.

2.Self-heating effect

The maximum measurement current allowed for platinum resistance is 5mA, and the resulting temperature rise is not greater than 0.3 ° C.

3. The ratio of the resistance value (R0) of the thermal resistance temperature sensing element at 0 ° C and its resistance (R100) at 100 ° C (R100 / R0)

Division number Pt100: Class A R0 = 100 ± 0.06 Ω

Class B R0 = 100 ± 0.12 Ω

W100 = R (100 ℃) / R (0 ℃) = 1.3851


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