User's Manual

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REX Meter
A Glossary Technical Manual
A-2 07 April 2006
load profiling Load profiling records energy usage per a specific time interval
while the meter is energized.
maximum demand The highest demand calculated during any demand
interval over a billing period.
meter base The part of the meter containing all of the following components:
■ base housing
■ current sensing transformer
■ current and voltage blades
■ hanger
microcontroller A single IC that contains the following components:
■ main processor
■ RAM
■ ROM
■ clock
■ I/O control unit
optical port A photo-transistor and an test LED on the face of the meter that is
used to transfer data between a computer and the meter via pulses of light.
previous billing data A copy of the billing data stored at the time of the most
recent demand reset.
rec see received.
received Used to specify the energy received by the utility at an electric
service.
tariff data See billing data.
TOU see time-of-use.
timekeeping The ability of the meter to keep a real time clock, including date
and time. The REX meter obtains time from the network.
time-of-use A billing rate that records energy usage and demand data in
separate registers to indicate the time of day that the energy was consumed.