Operation: CP1SD/T/L Version
CENTRON® Polyphase Meter Technical Reference Guide
39
Interval Make-up
Interval Make-up applies only to Load Profile meters.
During power-up processing, the Load Profile component checks if the duration of the
outage exceeds the configured minimum duration time. If it does, then at least one interval
will be tagged with an outage status. The interval that was active when outage occurred is
tagged as a partial interval due to the outage. If the outage ended in the middle of another
interval, then that interval is also tagged as a partial interval due to the outage. If any
intervals occurred in between, then those intervals are tagged as skipped intervals due to the
outage and their data will be all zeroes.
Operating Modes
The D/T/L Register has two operating modes: Normal Mode and Test Mode.
In the Normal Mode of operation, there are three display mode options: Normal Display
Mode, Alternate Display Mode, and Toolbox Display Mode.
In the Test Mode of operation, there are two display mode options: Test Display Mode and
Test Alternate Display Mode.
When the meter is placed in Test Mode, it ceases all normal billing functions. The
TEST switch can be used to control the operating mode of the D/T/L Register.
Normal Mode
Normal Mode is the standard mode of operation and the mode in which the meter
automatically starts when energized. Selected quantities are measured and processed in
billing registers. During this mode of operation, billing registers are saved in non-volatile
memory during power outages.
Test Mode
The meter can be placed into Test Mode either by pressing the TEST button or through
software communications. Manual use of the TEST button can be disabled via PC-PRO+
Advanced software.
If the TEST button is disabled through programming, the meter will not enter Test
Mode when the button is pressed.
While in Test Mode, the “TEST” annunciator is displayed on the LCD. When the Test
Mode is activated, all billing registers and certain non-billing registers are preserved in non-
volatile memory and restored when Test Mode is exited.
