Types of Meters

  • Digital: One is digital, with numbers displayed in four or five windows. If you have this meter, you simply record the numbers.
  • Dial: However, most meters are dial-type meters that have four or five clock-like faces numbered in clockwise and counter clockwise directions. For these meters, you need to read the dials from right to left, according to the direction of the arrow. Follow these guidelines when reading the dials:

If the pointer is between two numbers, record the lowest number. (Unless it is 9 and 0, and then you should record the 9.)

If the pointer is directly on a number, look at the dial to the right. If the pointer is between 9 and 0, record the smaller number. If it is between 0 and 1, record the larger number.

Calculating usage

After you have recorded the numbers for each dial, read them from left to right. To determine your usage, subtract the previous reading from the current reading.