FLIR GF7 Series, Руководство пользователя

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Detecting a gas leak 10
10.1 General
Full gas detection functionality, including High Sensitivity Mode (HSM) (see section 10.4
Enhancing the image using High Sensitivity Mode (HSM) , page 28), is available when
the camera is set to Gas detection mode.
You can use the camera to also detect gas in Temperature measurements mode. With
this setting, however, High Sensitivity Mode is not available.
Note To enable full gas detection functionality, select ( Settings ) > Application op-
tions > Gas camera mode > Gas detection .
10.2 Basic steps to gas detection
• First adjust the focus. If the camera is out of focus, there is a risk of missing a gas leak.
• The key to making the gas visible is enhancing the temperature difference between
the gas cloud and the background. To obtain optimal contrast, try to find a suitable
background by aiming the camera toward the target from different angles.
• Motion of the gas, e.g., caused by wind, makes the gas cloud easier to see.
• Using High Sensitivity Mode (HSM) can improve the detection of gas leaks, especially
when they are small or low in concentration.
• The camera automatically adjusts the temperature scale. Use this mode first, but do
not hesitate to set the scale manually. By centering on the temperatures around the
background of the gas, you can make the gas appear more clearly.
• Selecting a different color palette can make it easier to see the gas cloud.
10.3 Adjusting the camera focus
It is very important to adjust the focus correctly. If the camera is out of focus, there is risk
of missing a gas leak.
10.3.1 Manual focus
You can adjust the focus manually by rotating the focus ring. For more information, see
section 21.4
Adjusting the infrared camera focus manually , page 81.
10.3.2 Autofocus
You can autofocus the infrared camera by pushing the Autofocus button. For more infor-
mation, see section 21.5
Autofocusing the infrared camera , page 82.
WARNING
When the camera is set to autofocusing with the laser method ( Settings > Device settings > Focus > Au-
to focus > Laser ), do not point the camera at the face of a person when you use the autofocus function.
The laser beam can cause eye irritation.
10.3.3 Continuous autofocus
The infrared camera can be set up to perform continuous autofocusing. For more infor-
mation, see section 21.6
Continuous autofocus , page 83.
WARNING
Do not point the camera at the face of a person when the continuous autofocus function is on. The cam-
era uses laser distance measurements (that are continuous) for the focus adjustments. The laser beam
can cause eye irritation.
#T810411; r. AC/70277/70566; en-US 27