General Information
6 CENTRON® Meter Technical Reference Guide
Covers
The outer cover configurations available for CENTRON meter family are described below.
Meter Versions
C1S, C1SR, C1SC
Standard Optional
C12.19 C1SD, C1ST, C1SL
Including Demand Reset +
Optical Tower
Not Available
Display Functions
The C1S and C1SR modules can display kWh readings in either a 4x1, 4x10, or 5x1
configuration.
The C12.19 C1SD, C1ST, and C1SL modules can display a maximum of 80 display items
for the Normal, Alternate, and Test modes.
Specifications
The following sections describe the CENTRON meter specifications.
Electrical
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 (C1SD + Clock, C1ST, C1SL only)
Operating Range 3.4 - 3.8 V
Carryover 10-12 year cumulative and 15 year shelf life
Operating Environment
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 C62.45 - 1992
IEC 61000-4-4
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