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China Temperature Sensor & Thermistor manufacturer

Armored thermal resistance sensor

1. Application of armored thermal resistance

     It is usually used in conjunction with display instruments, recording instruments, and electronic computers. Directly measure the surface temperature of liquid, steam and gas medium and solid surface in the range of -200℃-500℃ in a variety of production processes.

2. Features of armored thermal resistance

  • Fast thermal response time, reducing dynamic error;
  • Small diameter, unlimited length;
  • High measurement accuracy;
  •Imported thin-film resistor elements with stable performance;

3. The working principle of armored thermal resistance

  Armored thermal resistance uses the characteristic that the resistance of a substance changes as the temperature changes to measure the temperature. When the resistance value changes, the working instrument will display the temperature value corresponding to the resistance value.

4. The main technical parameters of armored thermal resistance

  Product implementation standards

5. Diameter material of thermal resistance wire

Form of thermal resistance wire Single-branch thermal resistance wire Double-branch thermal resistance wire
Diameter of casing Φ3 Φ4 Φ5 Φ6 Φ8 Φ4  Φ5 Φ6 Φ8
Material of casing 1Cr18Ni9Ti 1Cr18Ni9Ti

6. Insulation resistance at room temperature

The temperature of the thermal resistance is 15-35°C, the relative humidity is not more than 80%, and the test voltage is 10-100V (DC). The insulation resistance between the electrode and the outer tube>100MΩ.

7. The temperature measurement range and temperature difference of the armored thermal resistance

Model number Index number Temperature range °C Accuracy class tolerance
WZPK Pt100 -200­­-+500 Class A ±(0.15+0.002 ltl)
WZPK Pt100 -200­­-+500 Class B ±(0.30+0.005ltl)

8. Thermal response time of armored thermal resistance

Casing diameter Thermal response time
Ф3 ≤3
Ф4 ≤5
Ф5 ≤8
Ф6 ≤12
Ф8 ≤15

9. The structure of the measuring terminal of the armored thermal resistance

The structure of the thermal resistance measuring terminal   

10. Installation and fixing form of armored thermal resistance
Installation and fixation of thermal resistance

11. Junction box form of armored thermal resistance
Junction box for thermal resistance

12. Model naming of armored thermal resistance
Model of thermal resistance

13. Armored thermal resistance, selection table

Explosion-proof armored thermal resistance Flat-plug thermal resistance
Explosion-proof armored thermal resistance, selection table Flat-plug thermal resistance, selection table
Waterproof thermal resistance Compensation wire type thermal resistance
Waterproof thermal resistance, selection table Compensation wire type thermal resistance, selection table
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