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2.
Select the rule type to Point, Line, or Area. Then draw a point, line, or area on the
interface where the position to be measured.
Point Please refer to
Point Thermography
for detailed conî´ªguration.
Line Please refer to
Line Thermography
for detailed conî´ªguration.
Area Please refer to
Area Thermography
for detailed conî´ªguration.
3.
Conî´ªgure the temperature measurement parameters.
Emissivity
Set the emissivity of the target. The emissivity of the surface of a material is its
effectiveness in emitting energy as thermal radiation. Different objects have different
emissivity. Refer to
Common Material Emissivity Reference
to search for the target
emissivity.
Distance
The distance between the target and the device.
Reî´«ective Temperature
If there is any object with high emissivity in the scene, check and set the reî´«ective
temperature to correct the temperature. The reî´«ective temperature should be set the
same as the temperature of the high emissivity object.
4.
Click and set the Alarm Rule.
Alarm Temperature and Pre-Alarm Temperature
Set the alarm temperature and pre-alarm temperature. E.g., select Alarm Rule as
Above (Average Temperature), set the Pre-Alarm Temperature to 50 °C, and set the
Alarm Temperature to 55 °C. The device pre-alarms when its average temperature is
higher than 50 °C and alarms when its average temperature is higher than 55 °C.
Filtering Time
It refers to the duration time after the target temperature reaches or exceeds the pre-
alarm temperature/alarm temperature.
Tolerance Temperature
Set the tolerance temperature to prevent the constant temperature change to affect
the alarm. E.g., set tolerance temperature as 3 °C, set alarm temperature as 55 °C, and
set pre-alarm temperature as 50 °C. The device sends pre-alarm when its temperature
reaches 50 °C and it alarms when its temperature reaches 55 °C and only when the
device temperature is lower than 52 °C will the alarm be cancelled.
Pre-Alarm Output and Alarm Output
When the temperature of target exceeds the pre-alarm or alarm threshold, it triggers
the pre-alarm or alarm output of the connected device.
Area's Temperature Comparison
Thermal & Optical Bi-spectrum PTZ Network Camera User Manual
11
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