| 摘要 |
<p>A watthour meter testing device for testing watthour meters is provided that includes a measuring device (40), a switch (160), a transmitter and a receiver. The measuring device is in communication with the power measured by the watthour meter. The switch is operable to test electromechanical watthour meters in a first position and operable to test electronic watthour meters in a second position. The transmitter (80) is operative to transmit a light signal to a consumption indicator on the watthour meter when the switch is in the first position for testing electromechanical watthour meter. The receiver (84) is operative to detect the light signal transmitted from the transmitter and reflected from the consumption indicator on the watthour meter when the switch is in a first position. The receiver is further operative to detect a consumption light signal emanating from the electronic watthour meters when the switch is in a second position.</p> |
