CET Electric Technology
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kW Total for TOU Tariffs 1 to 8
kvar Total for TOU Tariffs 1 to 8
kVA Total for TOU Tariffs 1 to 8
Table 4-10 Peak Demand Log
4.5.3 Monthly Energy Log
The PMC-53A stores monthly energy data for the present month and the last 12 months. The Monthly
Energy Log Self-read Time setup parameter allows the user to specify the time and day of the month
for the Recorder’s Self-read operation via communications. The Monthly Energy Logs are stored in the
meter’s non-volatile memory and will not suffer any loss in the event of power failure, and they are
stored on a First-In-First-Out basis where the newest log will overwrite the oldest.
The Monthly Energy Log Self-Read Time supports two options:
A zero value means that the Self-Read will take place at 00:00 of the first day of each month.
A non-zero value means that the Self-Read will take place at a specific time and day based on the
formula: Energy Self-Read Time = Day x 100 + Hour where 0 ≤ Hour ≤ 23 and 1 ≤ Day ≤ 28. For
example, the value 1512 means that the Self-Read will take place at 12:00pm on the 15th day of each
month.
The Monthly Energy Logs can be reset manually through the front panel or via communications.
The PMC-53A provides the following energy data for the present month and the last 12 months:
Table 4-11 Energy Measurements for each Monthly Energy Log Record
4.5.4 Daily and Monthly Freeze Log (Optional)
The PMC-53A optionally provides a Daily Freeze Log and a Monthly Freeze Log for Energy and Demand
parameters and can store up to 60 daily freeze records (2 months) and 36 monthly freeze records (3
years). All Freeze Logs and their respective setup registers can only be accessed through
communications. The PMC-53A’s Freeze Logs can freeze and record the following parameters:
kWh Total, kvarh Total, kVAh Total
Peak Demands for kW Total, kvar Total and kVA Total
kWh Total, kvarh Total, kVAh Total
Peak Demands for kW Total, kvar Total and kVA Total with Timestamp
Table 4-12 Freeze Log
The Daily Self-Read Time setup parameter allows the user to specify the time of the day for the Daily
Freeze Log Self-Read operation, while the Monthly Self-Read Time setup parameter allows the user to