Controllers, PLC, Timer, Control relays, Solid state relays, Optocouplers, Counter, Temperature controls, Transmitters, Power supplies, Displays, Motors
IR temperature sensors often provide the easiest, safest and fastest way to measure temperature without contact, especially when the surface is in motion or inaccessible.
To get the best results, there are some basic factors to consider to get good results. For example, if the surface being measured is reflective, if the object being measured is inside an oven or behind a viewing window, or if it is very small, then it is important to choose the right series of temperature sensors.
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Features
Measuring range from -40° to 2'400°C
Different versions and designs
Series for small to very large area measurements
Standardized output signals such as 4-20mA, 0-10V
Series with display alarm outputs
Good reasons for IR Temperature Sensors from Calex
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Emission
Detect radiation from objects
Any object with a temperature greater than 0 Kelvin emits thermal radiation, the intensity and position of the emission maximum of which depends on its temperature. This radiation is detected by the IR sensor (pyrometer). The radiation spectrum recorded by the sensor thus allows conclusions to be drawn about the temperature of the object. With the help of an IR temperature sensor, the object to be measured no longer needs to be touched directly in order to record the temperature.
Different materials also have different emission factors and therefore emit IR radiation with a different intensity at a given temperature. In temperature measurement, this is especially important for objects that are IR-opaque and have a low emission factor. An object made of polished stainless steel has a much lower emission factor than the same object with a rough surface.
In addition to the composition and surface texture of an object, a third factor indirectly affects the emission factor, the spectral range of the sensor. It does not directly affect the object, but it does affect how the sensor perceives the spectrum emitted by the object. Materials that are partially transparent, such as glass, plastics or silicone, can be measured in a range in conjunction with the appropriate selective filters.
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Who is Calex Electronics Limited?
Since 1973, Calex Electronics of the UK has been providing high quality and cost effective non-contact temperature measurement solutions and making conversion solutions for industries worldwide. Their design and manufacturing focus is on non-contact infrared temperature sensors and AC/DC power supplies.
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