User's Manual

General Information
CENTRON Meter Technical Reference Guide 1-5
Battery
The CENTRON C1ST and C1SL modules contain a battery that powers the clock
circuit during a power outage. The battery is permanently soldered to the module
and is expected to last the life of the module.
The TOU and Load Profile modules display a Low Battery error code (Er 000001) if
the minutes on the battery counter exceeds 525600 minutes (1 year). Refer to
Chapter 5,"Operation: C1SD, C1ST, and C1SL Versions" for detailed battery
information.
Covers
The outer cover configurations available for CENTRON meter family are described
in Table 1.1.
Outputs
The C1SD, C1ST, and C1SL personality modules are available input/output-ready
(I/O-ready). These modules contain circuitry that allows future functionality
expansion through I/O modules.
Display Functions
The C1S and C1SR modules can display kWh readings in either a 5x1 or 4x10
configuration.
The C1SD, C1ST, and C1SL modules can display a maximum of 32 Normal, 32
Alternate, and 8 Test display items, up to a total of 48 items.
Specifications
Electrical
Table 1.1 Outer Cover Configurations
Meter Versions Cover Options
Polycarbonate Glass
C1S, C1SR, C1SC Standard Optional
C1SD, C1ST, C1SL Including Demand Reset+ Optical Tower Not Available
Voltage Rating 120V, 240V
Operating Voltage ± 20% (60 Hz); ± 10% (50 Hz)
Frequency 60 Hz, 50 Hz
Operating Range ± 3 Hz
Battery Voltage 3.6 V nominal (C1ST, C1SL only)
Operating Range 2.7V - 3.8V
Carryover 1 year cumulative and 15 year shelf life