User's Manual

Operation: C1SD, C1ST, and C1SL Versions
5-14 CENTRON Meter Technical Reference Guide
7Select File | Import.
The Import screen shown in Figure 5.7 is displayed.
Figure 5.7 Import Screen
8 Select the CENTRON program to import from the list of available EXP files.
9Click OK.
The program is loaded into the Program Editor. Edit as necessary before
saving and using to program the meter.
Demand Reset
A demand reset can occur in both Normal and Alternate modes.
A demand reset can occur in two ways:
• Through the optical port using a compatible programming device
• With the standard push-button demand reset switch located on the face of the
meter (see Figure 5.2)
When a demand reset is initiated, the following events occur:
• As an indication of a demand reset, the display flashes all eights for six
seconds.
• The current maximum demand values are added to the corresponding
Cumulative Demand values.
• A self-read is performed (if selected).
• All Maximum Demand values are reset to zero. All corresponding times and
dates of maximum demands are cleared (C1ST and C1SL only).
• The number of demand resets is increased by one.
• The number of in-service days since the last reset is set to zero.
• The time and date of the last reset is updated (C1ST and C1SL only).
• The normal mode display resumes. Exception is when in test mode, the display
resumes with next item in display list.
As a security feature, additional manual demand resets are prevented for 60
seconds following a demand reset.
When a demand reset is performed on a meter programmed for Block Demand, the current
interval becomes the first interval in the next billing period. For Rolling Demand, all previously
completed subintervals are zeroed. The current subinterval becomes the first subinterval in the
next billing period. In Test mode, a demand reset will initialize the demand test interval.