"Rodney." <[EMAIL PROTECTED]> wrote: > To measure resistance I think I am supposed to turn the meter to either > (going by memory here, forgive me) 200 ohm, 2k ohm, 200k ohm, 2 M ohm, or > 20 M ohm. > > I'm thinking I should set it to 2M, but I'm not sure. Could someone let me > know if this is correct and maybe a quick explination why?
You want the lowest range that will still be higher than the resistance measured. This gives you the the most accurate reading. In an analog meter, on a higher range, the needle will swing over so far to zero as to be indistinguishable from it. Most digital meters are autoranging -- they only have an ohms setting and will pick the lowest range to give a "mid-scale" reading. On digital meters where you have to set the range, start low and work up until it no longer displays "OV". (You'd want to do the opposite with voltage and current -- start high and work down.) > Next, I (after turning off all power in the wire) connect one lead to one > end of the wire and one lead to the other end. Be sure to disconnect one end of the wire from the circuit, or you'll be reading multiple paths, which will affect the displayed value. > Will the reading say 35, 37, 49, etc. or will it be in decimal like .035? > (remember I'm trying to get 35 ohms of resistance or more) It will be a whole number. HTH, Steve ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
