Can anyone tell me how to convert micromhos to megohms. I was told that =
1 micromho represent 1 megohm but according to the myron L EP meter that =
is being used, the it doesn't seem to be 1 to 1.=20

Ed
									
	Hi Ed: It sounds like your still fighting the board 
cleanliness/resistivity conversion battle. Let's drop the megs and micros for 
a minute and talk about units. Ohm is a unit of resistance, mho is a unit of 
conductance. A mho is expressed as an inverse to ohm i.e. 100 ohms = 1/100 
mhos.Following that thru, one megohm(1000000 ohms)= 1/1000000 mhos. since 
there's one million micromhos in a mho; one micromho = one megohm. A couple 
of more data points for reference:  2 micromhos = 500000 ohms, 1/10 of a mho 
= 10000000 ohms. Mhos and ohms are not the same units they are inverse so you 
have to be careful when dealing with exponents. So the original statement is 
correct "1 micromho = 1 megohm". BTW you also see mhos expressed as Siemens, 
same thing. One additional thought are the measurments being taken at room 
temperature (25c)? Temperature can greatly effect resistance.		
									
						Regards			
						Michael Barmuta		
						Staff Engineer		
						Fluke Electronics Corp.	
						Everett Wa.		
						425-356-6076
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