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FLIR T640 User Manual

FLIR T640
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Working with measurement tools16
3. Push the joystick to display a submenu. Use the joystick to select one or more of the
global object parameters:
(External IR window compensation)
(Object distance)
(Atmospheric temperature)
(Relative humidity)
(Reflected temperature)
(Emissivity)
4. Push the joystick to display a dialog box.
5. Use the joystick to change the parameter.
6. Push the joystick. This closes the dialog box.
16.5.4.2 Changing local parameters
You can change the local parameters for a measurement tool.
A P next to the measurement tool on the screen indicates that local parameters are acti-
vated for the tool.
Follow this procedure:
1. To select the measurement tool, touch the tool on the screen. The tool is now dis-
played with one or more handles.
2. Push the joystick—or touch and hold the tool. This displays a context menu.
3. Use the joystick to go to
(Use local parameters).
4. Push the joystick.
(icon with grey indicator) is displayed.
5. Push the joystick to activate the use of local parameters.
(icon with blue indica-
tor) is displayed together with a submenu.
6. Use the joystick to select an object parameter.
7. Push the joystick to display a dialog box.
8. Use the joystick to change the parameter.
9. Push the joystick. This closes the dialog box.
10. When completed, push the joystick and select
(Done).
16.5.5 Related topics
For in-depth information about parameters, and how to correctly set the emissivity and
reflected apparent temperature, see section 31 Thermographic measurement techni-
ques, page 467.
16.6 Displaying values in the result table and displaying a graph
16.6.1 General
For the box, circle, and line tools, you can set the camera to display the maximum, mini-
mum, and average values in the result table.
For the line tool, you can also display a graph.
#T559880; r. AK/36075/36075; en-US
46

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FLIR T640 Specifications

General IconGeneral
Resolution640 x 480 pixels
Temperature Range-40°C to +2000°C
Field of View25° × 19°
Digital Camera5MP
Laser PointerYes
Wi-FiYes
Spatial Resolution (IFOV)0.68 mrad
Image Frequency30 Hz
Accuracy±2°C or ±2% of reading
Video RecordingYes
MeterLinkYes
Operating Temperature-15°C to +50°C
Storage Temperature-40°C to +70°C
ConnectivityUSB, Wi-Fi, Bluetooth
Battery LifeUp to 4 hours
FocusAutomatic or manual
Weight1.3 kg (2.9 lbs)
Spectral Range7.5 - 14 µm
Image StorageSD card
Thermal Sensitivity<30 mK
Lens Options15°, 45°

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