Aug 28, 2015 #1 A alpibucky Member level 1 Joined Jan 30, 2010 Messages 34 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Belgium Activity points 1,458 Hello, I need the schematics of this old VA-meter. The DC readings are good but the AC ones are totally wrong. With kind regards, alpibucky Last edited by a moderator: Aug 28, 2015
Hello, I need the schematics of this old VA-meter. The DC readings are good but the AC ones are totally wrong. With kind regards, alpibucky
Aug 28, 2015 #2 D.A.(Tony)Stewart Advanced Member level 7 Joined Sep 26, 2007 Messages 9,004 Helped 1,823 Reputation 3,645 Reaction score 2,197 Trophy points 1,413 Location Richmond Hill, ON, Canada Activity points 59,562 AC uses rectified average and scales to RMS assuming Sine What are did you get?
Sep 1, 2015 #3 A alpibucky Member level 1 Joined Jan 30, 2010 Messages 34 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location Belgium Activity points 1,458 SunnySkyguy said: AC uses rectified average and scales to RMS assuming Sine What are did you get? Click to expand... Thx for your answer. When the wires are shorted, i get a 2/3 scale or so reading, whatever the position of the voltage switch. Same reading when wires are open. With kind regard alpibucky
SunnySkyguy said: AC uses rectified average and scales to RMS assuming Sine What are did you get? Click to expand... Thx for your answer. When the wires are shorted, i get a 2/3 scale or so reading, whatever the position of the voltage switch. Same reading when wires are open. With kind regard alpibucky