24
Chapter 4
Dew Point
Environment
Tem.
Maximum relative humidity
10% 20% 30% 40% 50% 60% 70% 80% 90% 95%
10℃ -20
-11.9
-6.8 -3.0 0.6 2.6 4.8 7.6 8.4 9.2
15℃
-16.4
-7.9 -2.4 1.5 4.7 7.3 9.6 11.6 13.4 14.2
20℃
-12.5
-3.7 1.9 6.0 9.25 12.0 14.4 16.4 18.3 19.2
25℃ -8.7 0.5 6.2 10.5 13.8 16.7 19.1 21.3 23.2 24.1
30℃ -5.0 4.6 10.5 15.0 18.4 21.4 23.9 26.2 28.2 29.1
40℃ 2.6 12.7 19.1 23.8 27.6 30.7 33.5 35.9 38.0 39.0
50℃ 10.0 20.8 27.6 32.6 36.7 40.0 43.0 45.6 47.9 49.0
Operation Temperature Range
CAUTION:
◎ This chart can be consulted for the dew point (temperature at which
moisture will precipitate or condense out of ambient air) in different
working environment. If the temperature of the laser lower than the
crossing temperature in the chart, there is risk of condensation within the
laser.