Sensors of physical parameters -  Information portal  2016 - 2017                                                                                                            Use of material is possible by placing an active link
Pyrometer Raytek, a series 3i. Characteristics and description
   To overcome the limitations of using a contact thermometer at many industrial enterprises, help non-contact infrared thermometers Rautek 3i. For measurements in the environment of hot objects thermometers 3i have a built-Compensated energy reflected or emitted by the background around the object of measurement. Compensation reflected background radiation is needed to accurately measure in particular in those cases where the control zone gets radiation from nearby objects with high temperatures, such as inside the oven.
   General-purpose model 3i LT and LR designed to control the temperature in different industrial processes, maintenance and quality control. A wide range of models for optical performance and range of temperature measurement. High optical resolution 105:1 model LRL2SC, a wide range from -30 to 1200 C, allow the telescope to measure remote objects from a distance, such as electrical connectors power lines.
   Recommended for:
Maintenance, paper and pulp industry, events fire safety inspection of contact connections of electrical equipment.

   High temperature infrared thermometer, model 3i 1M and 2M are suitable for temperature control in the foundry and steel production, including the operation of heat treatment, tempering and forging.
   Due to the high optical resolution 180:1 Model 3i 1M can be used to analyze the temperature distribution in the different zones of furnaces. Allows surface temperature checker and lining smelters to assess the damage to the brickwork.
   Recommended for temperatures:
Ferrous metals, Steel, In the process of refining, casting and processing of metals, ceramics, semiconductor manufacturing technology, chemical and petroleum industries.

   Thermometers Raytek 3iG5 models and P7 for precise temperature measurement in monitoring technologies for production and processing of glass and plastic films. Pyrometer 3iG5 (5 microns) is designed to measure the temperature of the glass surface during the production and processing operations, including hardening, annealing and gluing. Model 3iR7 (7.9 microns) is used in the production and processing of thin plastic films.
   Specialized models for temperature control glass and plastic:
G5 -
   Holiday glass otzhig, molding, laminating, glass bending process
P7 -
   Laminating, flexographic printing, oriented films, extrusion and coating, PET, PTFE and film it, acrylic, nylon, cellulose, acetate, nylon, polyurethane, PVC, polycarbonate films.

  Technical data of some thermometers Raytek, a series of 3i:

   LT - measuring range -30 - 1200, 1% accuracy of the measured value, but less than 1 C by THE ambient temperature of 23 C, the response time of 700ms, the spectral range of 8-14 mm, the working temperature of 0-50 C, weight 800 - 1000 g power AA batteries 4 pcs., 200 mA, an optical resolution of 75:1, the background temperature compensation, withholding evidence 7c display resolution of 1 C

   G5 - measuring range of 150 - 1800, 1% accuracy of the measured value, but less than 1 C by THE ambient temperature of 23 C, the response time of 700ms, 5 micron wavelength range, operating temperature 0-50 C, weight 800 - 1000 g, power AA batteries 4 pcs., 200 mA, an optical resolution of 50:1, the background temperature compensation, withholding evidence 7c display resolution of 1 C
SENSORS OF PHYSICAL PARAMETERS
A bit of history
The first pyrometer was invented by the Dutch physicist Peter van Mussenbrock. These devices could measure the temperature of bodies only visually. Basic calculations were made from data about changing the color and brightness of the hot object. Of course, these indicators were not precise enough. Currently, the functionality of such devices has expanded considerably, it is possible to measure the temperature not only hot objects, but those objects which the figure does not exceed 0 degrees. For example, Optris infrared thermometer measures temperatures ranging from -32 to +900 °C. Improvement of these devices began in the 60-ies of the XIX century. The industry is developing successfully and at the present time. Due to active developments, we have the opportunity to produce industrial thermometers that were equipped with high technical characteristics. With the development of nanotechnology the size of devices is getting smaller, making their use as easy as possible. The first portable model of the pyrometer was developed in 1967, leading the American company Wahl. It was the prototype of the modern infrared devices. The introduction of new technologies and designs allows to improve the functioning of a pyrometer. The main principle was based on the definition of heat energy that was radiated by the object. The widespread uptake of these devices has the opportunity to remotely measure the temperature of both liquid and solids.