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[5.5.3.1.2 — Span]
The whole temperature range is digitized and used for storage. However, normally
only a small portion of the whole range is used for viewing. Select what tempera-
ture to look at by adjusting level.
The level function can be regarded as the brightness.
5.5.3.1.2
Span
This function sets the span of the temperatures displayed in the image. The unit is
degrees Celsius or degrees Fahrenheit.
The whole temperature range is digitized and used for storage. As is the case with
level, mentioned above, normally only a small portion of the whole range is used
for viewing. Select what temperature range to look at by adjusting span.
The span function can be regarded as the contrast.
5.5.3.1.3
Temp range
The camera supports two different temperature ranges. If a high temperature
option is installed, the user will get an extra range.
5.5.3.2
Freeze
The function switches the frozen/live status of the image. It has the same effect as
pressing the S button.
5.5.3.3
Auto adjust
The camera automatically optimises the parameter (-s) Level, Level & span or Auto
palette (see "Man adjust..." on page 33) for best image contrast and brightness.
Auto adjust is a one-time procedure which can be repeated if required. It has the
same effect as pressing the A button.
5.5.3.3.1
Auto palette
This function distributes the colours in a non-linear way along the temperature
scale. The function is useful if the operator wants to capture an image where the
relevant information is cluttered in a few parts of the temperature scale.
5.5.3.4
Image only
This function removes all on-screen graphics (e.g. result table, data fields etc). By
pressing ↵ or C button the screen is restored.
34
ThermaCAM™ PM575/595 Operator's Manual
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