<< Click to Display Table of Contents >> Navigation: Temperature Measurement > Automatic Thermography > Set Thermography Rule |
Steps
1. Customize the rule name.
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 Thermographyfor detailed configuration. Line Please refer to Line Thermographyfor detailed configuration. Area Please refer to Area Thermographyfor detailed configuration.
3. Configure 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.
Reflective Temperature
If there is any object with high emissivity in the scene, check and set the reflective temperature to correct the temperature. The reflective 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
Select two areas and set the comparison rule, and set the temperature difference threshold. The device alarms when the temperature difference meets the setting value.
5. You can shield certain area from being detected. Refer to Set Shielded Region for detailed settings.
6. Click Save.
Click Live View, and select thermal channel to view the temperature and rules information on live view.