In the domestic market of measuring instruments has a large selection of thermometers. IR thermometers – devices with different capabilities and different functionality. This may be a standard budgetary measure used in the home, or professional visual device, whose technical characteristics are close to the imagers.
Therefore, before purchasing a product, it is important to determine its purpose and to review the functions and technical characteristics of the thermometers.
Features
The first important feature of the device – the range of measured temperatures. It defines the purpose of the thermometer and its field of application. Modern optical device provides the ability to register temperature range (-50°C to+3000°C). If you want to measure higher temperatures, you should purchase a special model of thermometers (for example, pyrometric kit BALTECH TL-0219C) that allows you to connect the external contact probe. Such a probe will allow measurements in hard to reach places (for example, inside hidden areas of the device, or food).
The second important factor when choosing a device, optical resolution. With the increase of the optical resolution increases the measurement accuracy and decreases the measured surface. If you work far from the controlled object, need to buy professional optical pyrometer with a resolution of 100:1 (minimum). However, for domestic use and enough resolution 6:1. But the best choice on a ratio the price/functionality are thermometers with a resolution ratio (sight) 50:1, such as the model of BALTECH TL-0208C. This feature suggests that, from a distance of 5m diameter of the measuring area on the object is only 10cm, which reduces the error and increases the accuracy and repeatability of measurements.
the Standard devices with the minimum value configured for the registration of radiation with a factor of 0.95 (he averaged). For accurate measurements of many surfaces, this is enough. But if the object has a high reflectivity, to avoid loss of precision will not succeed. There will need digital optical pyrometer, allowing you to adjust the emissivity. The BALTECH supplies thermometers with adjustable emissivity, which is an advantage with cheap instrumentation.
In some cases, requires extremely accurate guidance on the measurement object. In this case, the IR pyrometer is equipped with a special laser system. One laser indicates the center of the measured circle, the other (two or more) – will highlight its borders. If the thermometer is equipped with more built-in figure of the camera, the field of measurement is marked on the photograph.
Professional thermometers have advanced digital processing of the measurement results. Such devices, thanks to the function definition easily calculate the maximum value of the measurements, minimum and average. Please note that these thermometers are much more expensive multifunction imaging BALTECH TR-0110 Zero.
Note that the set of features may differ from device to device.
Training in pyrometry and thermography is conducted at our training center on a monthly basis. We ask in advance to set up our courses TOP-104.