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3.
Active cooling
Active cooling is the most efficient solution for challenging conditions (elevated ambient temperature,
large heat load from the welding process). The most common means of active cooling include air cooling
and liquid cooling. Since active cooling is typically used in challenging environments, it is crucial to ensure
continuous and sufficient flow of the coolant to the camera. A dedicated warning system is strongly
recommended to avoid damage to the camera in case of problems with the flow of the coolant.
Air cooling (Section 3.5) can be a practical solution for relatively challenging conditions if suitable
pressurized air is available. Liquid cooling (Section 3.6) is even more efficient and for the most extreme
conditions air and liquid cooling can be combined (Section 3.7).
3.1 Installation to camera
Figure 3.1 shows typical active cooling components (2x cooling connector, 2x cooling hose and 2x hose
clamp) before and after installation to the camera. First the cooling connectors are connected to the
threads of the camera unit (ensure O-rings are in place; maximum torque 1 Nm). Then appropriate cooling
hoses (inner diameter 6 mm) are connected to the cooling connectors with appropriate hose clamps.
Always ensure that the cooling connectors and cooling hoses are properly fastened and free from any
leaks. Leaking cooling liquid can get in contact with the back of the camera and may in the worst case
enter the camera, thus breaking the camera.
Fig. 3.1. Active cooling components before and after installation to the camera.