Sensors for the food industry 401 are used in the food and pharmaceutical industries according to the hygiene standard DIN 32 676. Temperature is the most commonly measured parameter, and overheating is one of the most harmful factors in equipment operation, therefore there are many methods and application points for temperature sensors. The principle 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 impacts. Platinum best meets all these requirements; copper is slightly less suitable. Thermocouples are exclusively differential temperature sensors. They generate an electrical signal proportional to the temperature difference between two different points. Therefore, the junction (weld) which we use to measure the desired temperature is called the "hot" junction, while the other connection, which we cannot avoid, is called the "cold" junction. Terminal fitting (valve) according to DIN 32 676.Sensors can be produced with accuracy class B (standard), or with accuracy class A for an additional fee of 60.00 UAH. Material of the connecting terminal head of food industry sensors 401 Standard head for pipeline connection made of press material AG-4B with PG13.6 cable gland; Enlarged head for pipeline connection made of press material AG-4B with PG13.6 cable gland (designation B when ordering); Connecting head made of aluminum casting shape KSC (designation D1 when ordering); Connecting head made of aluminum casting shape KSE (designation D2 when ordering); Type of connection to working environment — terminal fitting (valve). Connection schemes — 2-, 3- or 4-wire. Types of sensitive elements — 50P, 100P, Pt100, Pt500, Pt1000, L, J, K. Temperature range — from -40 to 250 °C. Number of sensitive elements (for resistance temperature detectors) 1 or 2. Food industry thermometers can be with a conical fitting.
