General Information
CENTRON Meter Technical Reference Guide 1-5
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
Operating Environment
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 8 year cumulative and 15 year shelf life
Temperature -40°C to +85°C
Humidity 0% to 95% non-condensing
Accuracy ± 0.5% @ unity power factor
± 0.5% @ 50% power factor
Transient/Surge Suppression ANSI C37.90.1 - 1989
IEC 61000-4-4
ANSI C62.45 - 1992
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