16 Working with measurement tools
16.1 General
16.2 Adding/removing measurement tools
Follow this procedure:
Push the joystick to display the menu system.
Use the joystick to go to 
(Measurement).
Push the joystick to display a submenu.
- Select
(No measurements) to remove all tools. - Select
(Center spot) to add a center spot. - Select
(Hot spot) to add a hot spot detection within a box area. - Select
(Cold spot) to add a cold spot detection within a box area. - Select
(User preset 1) to add user preset 1. (Not available in all camera models.) - Select
(User preset 2) to add user preset 2. (Not available in all camera models.)
Push the joystick. This displays the measurement tool or the group of preset tools on the screen.
16.3 Working with user presets
16.3.1 General
16.3.2 Procedure
Follow this procedure:
Push the joystick to display the menu system.
Use the joystick to go to 
(Settings).
Push the joystick to display the Settings menu.
Select Define user presets and push the joystick.
Select Define preset 1 or Define preset 2 and push the joystick. This displays a context menu.
Select (Add measurement).
Push the joystick. This displays a submenu.
- Select (Add spot) to add a spot.
- Select
(Add box) to add a box. - Select
(Add circle) to add a circle. - Select
(Add line) to add a line. - Select
(Add delta) to set up a differential calculation.
Push the joystick. This displays the measurement tool on the screen.
Push the joystick. This displays a context menu, where you can select one or more of the following actions (depending on the type of tool):
- Remove the tool.
- Resize, move, center, and rotate the tool.
- Display maximum, minimum, and average values.
- Set alarms.
- Set local parameters.
- When completed, select
(Done).
When all measurement tools have been added, select 
(Save as preset).
16.4 Resizing or moving a measurement tool
16.4.1 General
16.4.2 Procedure
Follow this procedure:
To select the measurement tool, touch the tool on the screen. The tool is now displayed with one or more handles.
Spot measurement tool: 
Area measurement tool: 
Push the joystick—or touch and hold the tool. This displays a context menu.
- Select
(Resize) to change the size of the tool. - Select
(Move) to move the tool.
Move the joystick up/down and left/right to resize or move the tool.
When completed, push the joystick and select (Done).
16.5 Changing object parameters
16.5.1 General
16.5.2 Types of parameters
- External IR window compensation, i.e., the temperature of any protective windows, external lenses (e.g., the close-up lens), etc., that are set up between the camera and the object of interest. If no protective window, protective shield, or external lens is used, this value is irrelevant and should be left inactive.
- Object distance, i.e., the distance between the camera and the object of interest.
- Atmospheric temperature, i.e., the temperature of the air between the camera and the object of interest.
- Relative humidity, i.e., the relative humidity of the air between the camera and the object of interest.
- Reflected temperature, which is used when compensating for the radiation from the surroundings reflected by the object into the camera. This property of the object is called “reflectivity”.
- Emissivity, i.e., how much radiation an object emits, compared with the radiation of a theoretical reference object at the same temperature (called a “blackbody”). The opposite of emissivity is reflectivity. The emissivity determines how much of the radiation originates from the object as opposed to being reflected by it.
16.5.3 Recommended values
|
Object distance
|
1.0 m (3.3′)
|
|
Atmospheric temperature
|
20°C (69°F)
|
|
Relative humidity
|
50%
|
|
Reflected temperature
|
20°C (69°F)
|
|
Emissivity
|
0.95
|
16.5.4 Procedure
16.5.4.1 Setting global parameters
Follow this procedure:
Push the joystick to display the menu system.
Use the joystick to go to 
(Measurement parameters).
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)
Push the joystick to display a dialog box.
Use the joystick to change the parameter.
Push the joystick. This closes the dialog box.
16.5.4.2 Changing local parameters
Follow this procedure:
To select the measurement tool, touch the tool on the screen. The tool is now displayed with one or more handles.
Push the joystick—or touch and hold the tool. This displays a context menu.
Use the joystick to go to (Use local parameters).
Push the joystick. 
(icon with grey indicator) is displayed.
Push the joystick to activate the use of local parameters. 
(icon with blue indicator) is displayed together with a submenu.
Use the joystick to select an object parameter.
Push the joystick to display a dialog box.
Use the joystick to change the parameter.
Push the joystick. This closes the dialog box.
When completed, push the joystick and select (Done).
16.5.5 Related topics
16.6 Displaying values in the result table and displaying a graph
16.6.1 General
16.6.2 Procedure
Follow this procedure:
To select the measurement tool, touch the tool on the screen. The tool is now displayed with one or more handles.
Push the joystick—or touch and hold the tool. This displays a context menu.
Use the joystick to go to (depending on the tool) , , or (Max/Min/Avg/Alarm) or (Graph/Max/Min/Avg/Alarm).
Push the joystick. This displays a submenu.
- (Option available for the line tool.) Select
(Graph) and push the joystick to display 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 joystick to toggle:- When
(icon with grey indicator) is displayed, the markers are hidden. - When
(icon with blue indicator) is displayed, the markers are shown.
- When
When completed, move the joystick down to close the submenu.
Select (Done) and push the joystick.
16.7 Creating and setting up a difference calculation
16.7.1 General
16.7.2 Procedure
16.7.2.1 Procedure
Follow this procedure:
To set up a difference calculation, select (Add delta).
Push the joystick. This displays a dialog box where you can select the measurement tools that you want to use in the difference calculation. You can also select a fixed-temperature reference.
Push the joystick. The result of the difference calculation is now displayed on the screen.
16.8 Setting a measurement alarm
16.8.1 General
16.8.2 Types of alarm
- Above: Triggers an alarm when the temperature is above the preset alarm temperature.
- Below: Triggers an alarm when the temperature is below the preset alarm temperature.
16.8.3 Alarm signals
is displayed in the result table.
(above alarm) or 
(below alarm) is blinking.
16.8.4 Procedure
16.8.4.1 Setting up an alarm for a spot
Follow this procedure:
To select the spot, touch the tool on the screen. The tool is now displayed with a frame.
Push the joystick—or touch and hold the tool. This displays a context menu.
Use the joystick to go to 
(Set alarm on spot).
Push the joystick. This displays a dialog box where you can define the settings for the alarm.
- Alarm condition: The condition that triggers the alarm. Applicable values are Above, Below, or Off.
- Alarm limit: The temperature value that will be the critical condition when an alarm is triggered or not.
- Alarm sound: Applicable values are Beep or No sound.
Push the joystick. This closes the dialog box.
Push the joystick and select (Done).
16.8.4.2 Setting up an alarm for a box, circle, or line
Follow this procedure:
To select the measurement tool, touch the tool on the screen. The tool is now displayed with one or more handles.
Push the joystick—or touch and hold the tool. This displays a context menu.
Use the joystick to go to (depending on tool) , , or (Max/Min/Avg/Alarm) or (Graph/Max/Min/Avg/Alarm).
Push the joystick. This displays a submenu.
Select (Set alarm).
Push the joystick. This displays a dialog box where you can define the settings for the alarm.
- Alarm condition: The condition that triggers the alarm. Applicable values are Above, Below, or Off.
- Select measurement: Applicable settings are the values you have previously defined (Max, Min, and/or Avg).
- Alarm limit: The temperature value that will be the critical condition when an alarm is triggered or not.
- Alarm sound: Applicable values are Beep or No sound.
Push the joystick. This closes the dialog box.
Push the joystick and select (Done).
16.8.4.3 Setting up an alarm for a difference calculation
Follow this procedure:
Select (Add measurement). This displays a submenu.
Select 
(Select). This displays a dialog box.
Select Delta. This displays a context menu.
Use the joystick to go to (Set alarm on delta).
Push the joystick. This displays a dialog box where you can define the settings for the alarm.
- Alarm condition: The condition that triggers the alarm. Applicable values are Above, Below, or Off.
- Alarm limit: The temperature value that will be the critical condition when an alarm is triggered or not.
- Alarm sound: Applicable values are Beep or No sound.
Push the joystick. This closes the dialog box.