User's Manual

CENTRON Meter Technical Reference Guide 4-1
Chapter 4 Operation: C1S Version
The kWh only version of the CENTRON meter is available with one of three
personality modules to register energy accumulation:
Figure 4.1 C1S Personality Modules
All three modules are interchangeable and may be ordered with a 5x1 or 4x10
register for self-contained meters, and a 5xTR or 4xTR register for transformer-
rated meters.
The kWh only version of the CENTRON provides very accurate measurement for
energy accumulation for today’s needs, but also provides a platform for easy
upgrade to higher functionality in the future.
Physical Description
The CENTRON Personality Modules snap into the meter register mounting
brackets to ease installation of the board.
The clock and cyclometer modules are connected to the metrology board via a
two-wire connector that easily attaches to the edge of the metrology board (see
Figure 4.2). Clock and cyclometer modules manufactured after June 2000 are
attached via two individual connectors. A pulse is sent every 10 watthours from the
metrology board to these modules. This pulse drives the electromechanical
stepper motor which, in-turn, drives the movement of the clock or cyclometer
dials. A test dial is located above the two right meter dials on every clock module.
One revolution of the test dial is equivalent to 1 kWh.
C1S Clock Register
C1S Cyclometer Register
C1S LCD Register