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Your thermal sensor has two Gain settings.
High Gain Mode: -20° to 150° C (-4° to 302° F)
Low Gain Mode: 0° to 500° C (32° to 932° F)
A simple way to think of this is:
High Gain will give a more true apparent temperature. (More accurate temperatures)
Low Gain will allow you to see a larger range of temperatures and your above image is a good example, fire. (Larger range of temperatures)
In thermal cameras that either do not have an auto gain mode or you lock it on High Gain and then view flames, you will only be able to see the upper limit of the High Gain Mode and will not get a true apparent temperature since it willbe too low.
Most modern thermal cameras are set to Auto and will choose the correct Gain Mode.
High Gain Mode: -20° to 150° C (-4° to 302° F)
Low Gain Mode: 0° to 500° C (32° to 932° F)
A simple way to think of this is:
High Gain will give a more true apparent temperature. (More accurate temperatures)
Low Gain will allow you to see a larger range of temperatures and your above image is a good example, fire. (Larger range of temperatures)
In thermal cameras that either do not have an auto gain mode or you lock it on High Gain and then view flames, you will only be able to see the upper limit of the High Gain Mode and will not get a true apparent temperature since it willbe too low.
Most modern thermal cameras are set to Auto and will choose the correct Gain Mode.
