Great Site. A lots of good information. I tried to read all this feedback thread but it is time to get to serious work. I hope I am not duplicating something already discussed.
I did notice that a great care is taken to keep the site in a safe zone and I admire the intent. Although the experiment are design to stay at safe level, I felt that the "Safe meter usage" (http://www.allaboutcircuits.com/vol_1/chpt_3/9.html) is missing a key component. Not all multimeters are created equal. A discussion about voltage rating and so called "Category" could be of interest. At minima the section should include a disclaimer to verify that the voltage rating of the meter is consistent with the circuit being checked.
I understand that the experiment allowed on this site are at safe level and any multimeter would work, but this particular section shows examples of checking voltage or current on a regular AC plug and what look like at first an industrial electric junction box... This could be recipe for problem as some of my friend in the industrial maintenance world have found.
JM
I did notice that a great care is taken to keep the site in a safe zone and I admire the intent. Although the experiment are design to stay at safe level, I felt that the "Safe meter usage" (http://www.allaboutcircuits.com/vol_1/chpt_3/9.html) is missing a key component. Not all multimeters are created equal. A discussion about voltage rating and so called "Category" could be of interest. At minima the section should include a disclaimer to verify that the voltage rating of the meter is consistent with the circuit being checked.
I understand that the experiment allowed on this site are at safe level and any multimeter would work, but this particular section shows examples of checking voltage or current on a regular AC plug and what look like at first an industrial electric junction box... This could be recipe for problem as some of my friend in the industrial maintenance world have found.
JM