User's Manual

Operation: C1SD, C1ST, and C1SL Versions
5-2 CENTRON Meter Technical Reference Guide
• Bidirectional Metering—All three multifunction versions are capable of
measuring and displaying forward and reverse energy only (kWh). These
modules have two separate registers; one for forward kWh and one for reverse
kWh. When the meter is programmed with electronic detent, both the forward
kWh register and the reverse kWh register will be utilized. When the meter is
programmed to be undetented, the forward and reverse energy will
accumulate in the forward kWh register.
The C1SD, C1ST, C1SL modules are available with an LCD display and a
polycarbonate cover. The cover contains the optical port adapter and demand
reset button.
Controls and Indicators
All controls and indicators are shown in Figure 5.2. For detailed instructions about
a feature or control, refer to the appropriate subsection.
Figure 5.2 C1SL Controls
Modes of Operations
When the C1SD, C1ST, and C1SL modules are powered, they automatically enter
the normal display mode, perform self-diagnostics and display any appropriate
error codes. If no error codes are detected, an unprogrammed module will
alternate between CNTRON and Segment Test. A programmed module will
scroll through the Normal display sequence, displaying each selected quantity,
annunciator, and code number for the programmed duration.
The C1SD, C1ST, and C1SL modules each have three modes of operation:
•Normal
•Alternate
•Test
LCD Display
Demand Reset
Test LED
Optical Tower
Annunciators
Magnetic Reed Switch
Test Mode Switch