Ranger HRC™ operator´s manual – Optimizing the IR Image
Publ. No. TM 614 006 699 Rev B – ENGLISH (EN) – Oct 30. 2008  179
12.2.7.1  Adjustments in Auto Level-Span and DDE mode
In Auto Level-Span and DDE mode, level and span are automatically ad-
justed. The Adjust image feature makes it possible to tune the automatic 
values, by adjusting brightness and contrast with a percentage offset.
Adjusting image in Auto Level-Span & DDE mode
Step Action
1 Select Setup/IR menu to open the IR Camera menu system.
2 Select Image/Adjust Image….
3 Select Brightness and use the LEFT/RIGHT navigation buttons to select an offset 
percentage.
4 Select Contrast and use the LEFT/RIGHT navigation buttons to a select an offset percen-
tage
5 Press the ENTER button to conrm.
6 Press the CANCEL button to exit the IR Camera menu system.
12.2.7.2  Adjustments in Auto Level mode
In  Auto Level mode,  level  is  automatically  adjusted. The Adjust image 
feature is used to manually adjust the span value. The Adjust image fea-
ture also makes it possible to tune the automatic level value, by adjusting 
brightness with a percentage offset.
Adjusting image in Auto Level mode
Step Action
1 Select Setup/IR menu to open the IR Camera menu system.
2 Select Image/Adjust Image….
Select 
Auto and press the LEFT or RIGHT navigation button to do an auto adjustment of 
the image, which is a good starting point.
3 Select Span and use the LEFT/RIGHT navigation buttons to decrease/increase the width 
of the span.
4 Select Brightness and use the LEFT/RIGHT navigation buttons to a select an offset 
percentage
5 Press the ENTER button to conrm.
6 Press the CANCEL button to exit the IR Camera menu system.