Temperature sensors 103

Temperature sensors of group 103, type 1 are designed for measuring the temperature of the ambient environment, liquid, gaseous and bulk non-aggressive chemical media, as well as the surface of solid bodies in various industries.

Temperature is the most common parameter to measure, and overheating is one of the most negative factors affecting equipment operation. Because of this, there are many ways and places to apply temperature sensors.

The principle of operation of resistance temperature detectors is based on the change of electrical resistance of conductors and semiconductors depending on temperature. The material from which such a sensor is made must have a high temperature coefficient of resistance, preferably a linear dependence of resistance on temperature, good reproducibility of properties, and inertness to environmental influences. The best such characteristics are exhibited by platinum; to a slightly lesser extent — copper.

Thermocouples are exclusively differential temperature sensors. They generate an electrical signal proportional to the temperature difference between two different points. The junction (splice) used to measure the required temperature is called the “hot” junction, and the other junction (which is unavoidable) is called the “cold” junction.

Classification of 103 REGMIK temperature sensors by type of measuring (sensitive) element

• resistance temperature detectors (thermometers):
• resistance temperature detectors TSM (TSM sensor)
• resistance temperature detectors TSP (TSP sensor)
• thermoelectric converters (thermocouples):
  • thermocouples TXA
  • thermocouples TXK
  • thermocouples TZhK
• semiconductor converters - TP.

Main technical characteristics of 103 temperature sensors:

• Tolerance classes - A, B, C (for resistance temperature detectors), 1, 2 (for thermocouples);
• Resistance element connection scheme - two-, three-, four-wire;
• By type of sensitive element divided into:
  • resistance temperature detectors (50M, 100M, 50P, 100P, Pt100, Pt500, Pt1000, Pt2000, Pt10000),
  • thermoelectric converters (thermocouples TXA (K), TXK (L), TZhK),
  • semiconductor (DS18B20);
• Protective fitting material - steel 12X18H10T;
• Protection degree against dust and water - IP54;
• Construction of resistance temperature detectors – non-disassemblable;
• Insulation resistance – not less than 100 MOhm.