User's Manual

Operation: C1SD, C1ST, and C1SL Versions
5-10 CENTRON Meter Technical Reference Guide
Informational Data
The following items are for information purposes (see Table 5.4). All informational
data, except those items indicated by an asterisk, can be displayed in Normal and
Alternate modes.
Register Full Scale
A kW demand value that defines the maximum rated
demand for a particular meter installation. Valid entries
range from 0 to 999999.
Test Mode Timeout
The number of minutes the meter will remain in Test
mode before exiting to Normal mode. This timeout
function is active when Test mode has been activated via
remote communications. Valid entries range from 1 to 99
minutes.
Operating Frequency*
The operating frequency must be programmed to 50 Hz
or 60 Hz line operation.
Line or Crystal Sync*
The real time clock can be synchronized off the input line
frequency or the internal crystal.
Register Multiplier
A programmable value that is used in calculations of
energy and demand readings. This can be used by
setting the register multiplier equal to the CT ratio times
the PT ratio of the installation for primary read meters.
Valid entries are from 1 to 9999.
Note: Energy and demand display formats should be
adjusted accordingly.
Optical Communications Baud Rate*
The optical communications default baud rate is 4800
baud, however, a rate of 9600 baud is selectable.
Expansion Port Comm. Baud Rate*
The expansion port communications default baud rate is
2400 baud; however, rates of 300, 1200, 2400, 4800,
and 9600 baud are selectable.
*Indicates parameters that can be uploaded to a reading device but cannot be displayed.
Table 5.3 Programmable Parameters
Parameter Description
Table 5.4 Information Data Items
Item Description
Time and Date of Maximum Demands
(C1ST and C1SL only)
The time and date that each maximum demand occurred
for A, B, C, D and Total Rates.
Time Remaining in (Sub) interval
The amount of time in minutes and seconds before the end
of the current demand interval.
Segment Test
The display illuminates all segments and selected
annunciators on the LCD in order to verify proper operation.
The watt disk emulator continues to function normally.