Screening alarm
19
The screening alarm can be used to detect temperature anomalies in a series of in-
spected objects in a similar/fixed setup.
19.1 General
The basics of the screening alarm is to first build up a base of reference temperature
samples. When an object is screened, the camera compares the measured temperature
with the average of the reference samples. If the camera detects a temperature that is
above a specified threshold, an alarm will trigger.
1. Sampled average temperature.
2. Alarm limit.
3. Measured temperature.
4. Measurement box.
The camera detects and measures the temperature of the hottest spot within the meas-
urement box.
An alarm will trigger when the measured temperature is higher than the alarm limit. The
camera will also apply a red color to all parts of the image with a temperature above the
alarm limit.
The alarm limit is the sum of a sampled average temperature and a specified allowed
deviation.
19.2 Work flow
The screening work flow involves the following steps:
1. Activate and configure the screening alarm.
2. Record reference samples.
3. Perform the screening.
4. Record new samples to keep the sampled average up to date.
19.2.1 Activate and configure the screening alarm
1. Enable the screening mode by selecting
(Settings) > Device settings > User in-
terface options > Screening mode = On.
2. Activate the screening alarm by selecting
(Recording mode) > (Screening).
3. In the Screening dialog box, you can define the settings for the alarm:
• Allowed deviation: The allowed deviation from the sampled average.
• Alarm sound: Beep or no sound when the alarm triggers.
#T810413; r. AF/83467/83910; en-US
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