Fotric 340M Series, User Manual

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4.5 Temperature Scale Mode
The temperature scale mode button can adjust the image temperature scale.
The thermal imager supports auto scale, manual scale and
touch-screen scale modes.
4.5.1 Auto Scale Mode
In Auto Scale Mode, the upper and lower temperature scale limits can be
automatically adjusted to achieve the best image effect.
in TWB mode, They are the highest and lowest of the histogram range, not the
on-screen’s.
4.5.2 Manual Scale Mode
In Manual Scale Mode, the upper and lower limits of temperature scale
limits can be set manually. Manual scale has two options, and can be set in
Settings- Device Set- manual mode.