Procedure; Changing Object Parameters; General; Types Of Parameters - FLIR GF300 User Manual

18 Working with measurement tools

18.3.2 Procedure

Note This procedure assumes that you have previously laid out at least two measure-
ment tools on the screen.
Follow this procedure to create and set up a difference calculation:
1. Turn the mode wheel to
2. Push the button to display a menu.
3. Move the joystick left/right to go to the Edit tab.
4. Move the joystick up/down to select Add difference.
5. Push the joystick to display a dialog box.
6. Do the following and push the joystick to confirm each choice:
6.1. To select the first function in the difference calculation, select Function 1 and
push the joystick. Move the joystick up/down to select the measurement tool
you want to use for this function.
6.2. (Not applicable if there is only one measurement tool.) To select the ID of the
measurement tool, select Id and push the joystick. Move the joystick up/down
to select the ID.
6.3. (Not applicable to spotmeter and reference temperature.) To select the result
type of the measurement tool (Min., Max., Avg.), select Type and push the joy-
stick. Move the joystick up/down to select the result type of the measurement
tool.
7. Do the following and push the joystick to confirm each choice:
7.1. To select the second function in the difference calculation, select Function 2
and push the joystick. Move the joystick up/down to select the measurement
tool you want to use for this function.
7.2. (Not applicable if there is only one measurement tool.) To select the ID of the
measurement tool, select Id and push the joystick. Move the joystick up/down
to select the ID.
7.3. (Not applicable to spotmeter.) To select the result type of the measurement tool
(Min., Max., Avg.), select Type and push the joystick. Move the joystick up/
down to select the result type of the measurement tool.
8. Push the button to confirm and leave the setup mode.

18.4 Changing object parameters

18.4.1 General

For accurate measurements, you must set the object parameters. You can do this locally
or globally. This procedure describes how to change the object parameters globally.

18.4.2 Types of parameters

The camera can use these object parameters:
• Emissivity, i.e., how much radiation an object emits, compared to the radiation of a the-
oretical reference object of the same temperature (called a "blackbody"). The opposite
of emissivity is reflectivity. The emissivity determines how much of the radiation origi-
nates from the object as opposed to being reflected by it.
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