Hi. Most of the IEC standards I've seen specify temperature, relative humidity and barometric pressure limits for test conditions. Temperature and humidity can easily be outside of the range stated if outdoors, but the barometric pressure range seems fairly wide.
I've been to a couple of test labs for type testing and not seen anything to suggest they bother to measure the ambient conditions. Is the general consensus that the barometric pressure has to be measured to check if it is within the range specified, or is it safe to say that unless you're about to be struck by a cyclone or tornado, the ambient conditions will be within the range for barometric pressure? Curiously, Pete. ------------------------------------------------------------------------- Opinions stated above are not necessarily those of my employer. Peter Poulos (Hardware Design Engineer) Foxboro-L&N (Formerly LEEDS + NORTHRUP) 42 McKechnie Drive, Eight Mile Plains, QLD, Australia 4113 Tel:+61 (07) 3340 2118 Fax: +61 (07) 3340 2100 E-mail:[email protected]
