Operation
66
Platinous User’s Manual
Following is an example program that prevents dew from forming on specimens. In this
example, the chamber is programmed to go from 20°C and humidity control OFF to 85°C
and 85% RH.
FIGURE 6.40. EXAMPLE DEW PREVENTION PROGRAM
1. In step 2, temperature rises to 85°C. Only temperature is raised because a sharp increase in humidity
will make specimen surface temperature lower than the dew point, which may increase dew. Exposure
time in step 2 will vary depending on the heat load of the specimens. Use the time needed to stabilize
the chamber at 85°C as a reference for determining exposure time.
2. In step 3, the chamber runs at 85°C and 85% RH. Though humidity control starts up, dew does not form
because specimen surface temperature is near 85°C.
Target
temperature
Target
humidity
85°C
20°C
85%RH
0
Step No.
1234
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