Trumpf KF023, Operator'S Manual

Page: 89 / 176

5.1 Calculating required cooling water
temperature
Dew point diagram Fig. SG-02007
1. Measure ambient temperature (in the example: 36 °C).
2. Measure the relative humidity (80 % in the example).
3. Draw a vertical line in the diagram from the measured ambi-
ent temperature upwards until it intersects with the straight
line representing the measured humidity.
4. Draw a horizontal line from the point of intersection to the
dew point temperature.
5. Read dew point temperature (in the example: 32 °C).
The temperature of the cooling water flowing through the focus-
ing optics must be at least 2 °C above the dew point tempera-
ture: In the example, the cooling water temperature should be at
least 34 °C.
Note
Observe the laser device and welding optics requirements when
determining the required cooling water temperature. In tropical
countries, the cooling of the focusing optics must be ensured
using an external cooling unit.
12-29-01-A1-CRen 2022-03 Ambient conditions
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