User's Manual

Operation: C1S Version
4-2 CENTRON Meter Technical Reference Guide
Figure 4.2 Mounted LCD Register
Registers
Kilowatt Hours
The modules display energy in increments of whole values of kWh. Standard
operation for all modules is to add forward and reverse energy flow. Therefore, if
the meter is inverted, the registers will accumulate in the forward direction, thus
providing uni-directional operation. At the time of order, the LCD module can be
selected to have a detent register. Programmed at the factory, this feature will
cease registration while the meter is inverted, or power flow is otherwise reversed.
The module can also be selected to have a net register. This feature is factory
programmable and will subtract registration while the meter is inverted, or power
flow is otherwise reversed.
Resetting Values
The ZRO-C2A (see Figure 4.3) resets the energy register through a direct
connection to the connector at the 12 o’clock position on the LCD and R300
modules.