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FLIR T640 User Manual

FLIR T640
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Working with measurement tools16
16.6.2 Procedure
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 (depending on the tool)
, , or (Max/Min/Avg/
Alarm) or (Graph/Max/Min/Avg/Alarm).
4. Push the joystick. This displays a submenu.
(Option available for the line tool.) Select
(Graph) and push the joystick to dis-
play a graph.
Select
(Max) and push the joystick to display the maximum value.
Select
(Min) and push the joystick to display the minimum value.
Select
(Avg) and push the joystick to display the average value.
(Optional step.) You can choose to show or hide the maximum and minimum
markers (the hot/cold spots). Select
(Max & min markers) and push the joy-
stick to toggle:
When
(icon with grey indicator) is displayed, the markers are hidden.
When
(icon with blue indicator) is displayed, the markers are shown.
5. When completed, move the joystick down to close the submenu.
6. Select
(Done) and push the joystick.
16.7 Creating and setting up a difference calculation
16.7.1 General
A difference calculation gives the difference between the values of two known measure-
ment results.
16.7.2 Procedure
Note
You can set up a difference calculation when defining user presets, or when editing an
image in the archive.
This procedure assumes that you have previously laid out at least one measurement
tool on the screen.
16.7.2.1 Procedure
Follow this procedure:
1. To set up a difference calculation, select
(Add delta).
#T559880; r. AK/36075/36075; en-US
47

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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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