Infrared thermometer use points
Signal Processing Functions
In view of the discrete process (such as parts production) and the continuous process is different, so the requirements of infrared thermometer has a multi-signal processing capabilities (such as peak hold, valley hold, average value) can be selected, such as temperature measurement conveyor belt on the bottle, it is necessary to use the peak hold, and the output signal of its temperature is transmitted to the controller. Otherwise the pyrometer reads out the lower temperature value between the bottles. If peak hold is used, set the pyrometer response time slightly longer than the time interval between bottles, so that at least one bottle is always in the measurement.
Environmental Conditions Considerations
Pyrometer environmental conditions have a great impact on the measurement results, should be considered and resolved appropriately, otherwise it will affect the accuracy of temperature measurement or even cause damage. When the ambient temperature is high, the presence of dust, smoke and steam conditions, can choose the manufacturer to provide a protective sleeve, water cooling, air cooling system, air blowers and other accessories. These accessories can effectively solve the environmental impact and protect the pyrometer to achieve accurate temperature measurement. When identifying accessories, standardized service should be required whenever possible to reduce installation costs. Fiber-optic two-color pyrometers are the best choice when smoke, dust, or other particles degrade the measurement energy signal under noise, electromagnetic fields, vibration, or difficult-to-access environmental conditions, or other harsh conditions. Colorimetric pyrometer is the best choice. In the noise, electromagnetic fields, vibration and difficult to access the environmental conditions, or other harsh conditions, it is appropriate to choose the light colorimetric thermometer.
In sealed or hazardous material applications (e.g., containers or vacuum chambers), the pyrometer views through a window. The material must be strong enough and able to pass through the operating wavelength range of the pyrometer used. It is also important to determine if the operator also needs to observe through the window, so it is important to choose a suitable mounting position and window material to avoid interaction. In cryogenic measurement applications, it is common to use Ge or Si materials as windows that are impervious to visible light and through which the human eye cannot view the target. If the operator needs to pass through the window target, should be used both through the infrared radiation and through the visible light of the optical material, such as should be used both through the infrared radiation and through the visible light of the optical material, such as ZnSe or BaF2, etc. as the window material.
When the pyrometer working environment of flammable gases, you can choose intrinsically safe infrared thermometer, so that a certain concentration of flammable gases in the environment for safe measurement and monitoring.
In the case of harsh and complex environmental conditions, a system with separate temperature measuring head and display can be selected to facilitate installation and configuration. Signal output forms can be selected to match current control equipment.
Calibration of infrared radiation thermometers
An infrared thermometer must be calibrated in order for it to correctly display the temperature of the target being measured. The general calibration cycle of infrared temperature measurement is one year, it is recommended to use the cavity type, the emissivity of 0.995 blackbody furnace in order to accurately calibrate the infrared thermometer. If the thermometer used in the use of the temperature measurement over the difference, it is necessary to return to the manufacturer or maintenance center to recalibrate.
