Non Condensing?

Good answer TVP45,

And for this reason, in marine painting of steel equipment, steel piping and structural steels, it is prohibited to apply any paint at the surface of steel unless the steel surface temp. is higher than the dew point by at least 2 ^oC to avoid applying the paint on an invisible film thickness of moisture which condense at the more cooled surface in case of the steel surface temp. ≤ dew point.

I am approaching this question of non condensible gases from the pharmaceutical world of autoclaves where the bad gas in the autoclave is the non condensible gas. The autoclaves are set up to purge the chamber and the materials in them of non condensible gases because the non condensible gases reduce the heating and kill effect of the steam. In the autoclave there are cycles of steaming then vacuum to reduce these non condensible gases and fill the chamber with only steam.

TVP45's explanation is correct if the brochures are refering to condensation of moisture vapor in the air; however, virtually every permanent gas is considered as non-condensing if it above the critical temperature.

All that said is correct, but failed to answer your question.

you wrote:Could you explain it to me what does it mean in case of electronic devices.

In the case where moisture will effect the proper functioning of an electronic circuit, you can avoid condensation in various ways. The simplest is keeping the ambient temperature and components temperature the same, or components temperature little warmer.

Condensation on coolers is usually unavoidable, and none critical.

Wangito.

Good Day!

In your ststement you mention "operating Humidity" and "non-Condensing. In most electronic, tape or server media rooms, humidity is an important factor to keep the static electricity in the room at bay. The room must maintain a 45%-50% humidity at 18c-20c. If the humidity is too high even at a constant temperature the equipment will condense and allow TVP45 senario to occur by completing the open circuits with contaminents.