Reset the PDU Metering Unit (Original PDU)
You can reset the PDU metering unit using the reset button.
Resetting the metering unit does not power cycle equipment attached to the
Press and hold the reset button until you see a five-second countdown
displayed on the LCD screen.
You must press the reset button for 20 seconds before the five-second
During the five-second countdown, release the reset button and then tap
the button again to force the metering unit to reset.