FLIR GFx320, User Manual

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Achieving a good image 16
16.3.2 Explanation of the adjustment methods
Auto An adjustment method that will automatically adjust the image for best brightness
and contrast.
HSM HSM = High Sensitivity Mode.
An adjustment method that is specifically designed for gas detection applications.
Working in this mode, you can change the sensitivity to optimize the image quality.
Manual An adjustment method where you manually set the suitable temperature level and
temperature span according to the temperature of the objects in the scene.
For gas detection applications, this mode lets you center on the temperatures
around the background of the gas, so as to make the gas appear more clearly.
16.3.3 Procedure ( Auto )
Follow this procedure to adjust an image using the Auto method:
1. Turn the mode wheel to or .
2. Push the A/M button to select Auto . The image will now be continuously adjusted for
best image brightness and contrast.
16.3.4 Figure
This figure shows the HSM slider:
16.3.5 Procedure ( HSM )
Follow this procedure to adjust an image using the HSM method:
1. Turn the mode wheel to or .
2. Push the A/M button to select HSM . To change the sensitivity, move the joystick left/
right.
You will need to experiment with this setting until you get a clear image of a verified
gas leak.
16.3.6 Procedure ( Manual )
Follow this procedure to adjust an image using the Manual method:
1. Turn the mode wheel to or .
2. Push the A/M button to select Manual , then do one of the following:
• To change the temperature level, move the joystick up/down.
• To change the temperature span, move the joystick left/right.
16.4 Selecting a suitable temperature range
16.4.1 About temperature ranges
16.4.1.1 General
The camera has three different types of ranges. Within each type of range, there are sev-
eral subranges. You must choose a suitable range for your object.
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