Procedure; Setting A Measurement Alarm; General; Types Of Alarm - FLIR T420 User Manual

16 Working with measurement tools

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
2. 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-tem-
perature reference.
3. 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

You can make the camera trigger an alarm when certain measurement conditions are met.

16.8.2 Types of alarm

You can choose between the following alarm types:
• 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

When an alarm is set, the symbol
When an alarm is triggered, the value in the result table is displayed in red (above alarm)
or blue (below alarm) and the symbol
You can also set an audible alarm (there will be a "beep" when the alarm is triggered).
16.8.4 Procedure
There are different procedures for setting up an alarm for a spot, box, circle, or line and for
a difference calculation.
#T559879; r. AO/35410/35410; en-US
(Add delta).
is displayed in the result table.
(above alarm) or (below alarm) is blinking.
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