Figure 7-24. - Typical multimeters (analog types A and B and digital types C and D).
near the equipment; in this case, you should check with someone who knows (for example, a public works engineer or line crew supervisor). Check the highest range on your instrument. If you have a meter and you know the voltage value should not exceed 1,000 volts ac, then set the range/function switch to 1,000 ACV.
WARNING The following sequence of steps is important for your safety. Stay alert and follow them carefully.
Plug the test leads into the appropriate jacks for the test you are about to perform. When you have red and black test leads, get into the habit of using the black lead with the common or - (negative) jack, even when measuring ac volts. For either analog meter, plug the red lead into the + (positive) jack. With either of the digital meters, use the jack marked V-O (volts-ohms).
Connect the two test leads to the two conductors/terminals of the wall outlet while holding the insulated protectors on the test leads. Do not touch the probes or clips of the test leads. Take the reading. If you have the meter range switch at the highest setting and see that the voltage value is within a lower voltage range, set the range switch to the lower range that is still higher than the voltage reading you remember. When you take a reading at a higher range and switch to a lower range, the reading at the lower range will be more accurate. Be certain to read from the scale that matchesContinue Reading