hi all,may be a daft question but here goes,ive a fluke 83v multimeter,on resistance range if i short the probes together i get a reading of .3 ohm,so far so good,i then hit the rel button to zero it with the probes shorted,it then reads zero,all well and good,trouble is then it wont measure a resistance and the range button does nothing,is this normal or my meter iffy?,cheers m3vuv.