Temperature sensors 107

Temperature sensors 107 of group 1 are intended for measuring the temperature of the environment, liquid, gaseous and bulk chemically non-aggressive media, as well as the surface of solids in various industries.

Temperature is the most common measured parameter, and overheating is one of the most negative factors in the operation of equipment, therefore, there are a huge number of ways and places of using temperature sensors.

The principle of operation of resistance thermocouples is based on a change in the electrical resistance of conductors and semiconductors depending on temperature. The material from which such a sensor is made should have a high temperature coefficient of resistance, possibly a linear dependence of resistance on temperature, good reproducibility of properties and inertness to environmental influences. To the greatest extent, platinum satisfies all of the above properties; slightly less copper.

Thermocouple Are exclusively differential temperature sensors. They generate an electrical signal proportional to the temperature difference between two different points. Therefore, the junction (junction) that we use to measure the required temperature is called the "hot" junction, while the other junction (from which we can not escape) is called the "cold" junction.

Classification of temperature sensors 107 REGMIK according to the type of measuring (sensitive) element

• resistance thermocouples (thermometers):
• - TCM resistance thermocouples (TCM sensor)
• - RTD resistance thermocouples (RTD sensor)
• thermoelectric thermocouples (thermocouples):
  • thermocouples TXA
  • thermocouples THK
  • thermocouples TJK
• semiconductor converters - TP.

Main technical characteristics of temperature sensors 107:

• Tolerance classes - A, B, C (for vehicle), 1, 2 (for TP);
• The connection diagram of the SE is two-, three-, four-wire;
• by type of SE are divided into
  • resistance thermocouples (50M, 100M, 50P, 100P, Pt100, Pt500, Pt1000, Pt2000, Pt10000),
  • thermoelectric converters (thermocouples TXA (K), THK (L), TJK),
  • semiconductor (DS18B20);
• Protective reinforcement material - steel 12X18H10T;
• Dust and water protection degree - IP54;
• Thermal converters design - non-separable;
• Insulation resistance - not less than 100 megohms.