Temperature Sensors 104

Temperature sensors of group 104 type 1 are designed to measure the temperature of the ambient environment, liquid, gaseous and bulk chemically non-aggressive media, as well as the surface of solid bodies in various industries.

Temperature is the most common parameter for measurement, and overheating is one of the most harmful factors in equipment operation; therefore, there are many methods and places for applying temperature sensors.

The operating principle of resistance temperature detectors is based on the change in electrical resistance of conductors and semiconductors depending on temperature. The sensor material must have a high temperature coefficient of resistance, linear dependence of resistance on temperature, good property reproducibility, and inertness to environmental influences. Platinum best meets these properties, copper somewhat less so.

Thermocouples are differential temperature sensors that form an electrical signal proportional to the temperature difference between two different points. The junction (splice) used for measuring temperature is called the "hot" junction, while the other junction is called the "cold" junction.

Classification of 104 REGMIK temperature sensors by type of sensing element

• Resistance temperature detectors (thermometers):
• - resistance temperature detectors TSM (sensor TSM)
• - resistance temperature detectors TSP (sensor TSP)
• Thermoelectric converters (thermocouples):
  • thermocouples TXA
  • thermocouples TXK
  • thermocouples TZK
• Semiconductor converters - TP.

Main technical characteristics of 104 temperature sensors:

• Accuracy classes - A, B, C (for RTDs), 1, 2 (for semiconductor sensors);
• Sensing element connection scheme - two-wire, three-wire, four-wire;
• By sensing element type they are divided into
  • resistance temperature detectors (50M, 100M, 50P, 100P, Pt100, Pt500, Pt1000, Pt2000, Pt10000),
  • thermoelectric converters (thermocouples TXA (K), TXK (L), TZK),
  • semiconductor (DS18B20);
• Protective fitting material - steel 12X18H10T;
• Protection degree against dust and water – IP54;
• Resistance temperature detector design - non-detachable;
• Insulation resistance - not less than 100 MΩ.