KPA 500

Posted by ANDY DURBIN on Apr 10, 2020; 6:12pm
URL: http://elecraft.85.s1.nabble.com/KPA-500-tp7659606p7659627.html

"After transmitting at 200W the temperature slowly
rises above 60 degrees C, but the fan doesn't cut in. Does anyone know
if this is normal behavior and what temperatures I should expect to see?"

Nominal temperature for start of fan speed 1 is 50 deg C although my data for one test run showed several seconds at 50 deg C and fan not running.  It started running just before the temperature rose to 51 deg C.

60 deg C with fan not running is not normal.  60 deg C is the nominal temperature for start of fan speed 3.

73,
Andy, k3wyc


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