User's Manual

A3 ALPHA Meter/Collector
July 2004 Product Guide
5
The A3 ALPHA meter uses its own, separate TOU switch points (programmed
into the A3 ALPHA meter using Metercat support software) that are independent
from the ILC1 option board switch points.
Calendar. The ILC1 option board reads the A3 ALPHA meter calendar to
determine the day type for the next 32 days and relays this to the REX meters
registered to the collector.
Season Changes
Season changes for the A3 ALPHA meter/collector are controlled by the calen-
dar in the A3 ALPHA meter. Season changes for the REX meters are controlled
by calendars in the ILC1 option board. The ILC1 option board has season
change dates for each of eight possible TOU schedules. Using the season
change information, the ILC1 option board makes certain that the associated
REX meter performs a season change on the correct date. After a season
change, the ILC1 option board will read and store a season change copy of the
billing data from associated REX meters.
Call Initiation
The A3 ALPHA meter/collector can initiate billing, alarm, and outage/restoration
calls based on the customer program configured in the meter (see Metercat
documentation or the ITM3 product guide PG42-1006 for more information on
call initiation). Additionally, the ILC1 option board can independently initiate
alarm calls to report the following conditions:
■ an additional REX meter has been registered to this collector
■ a REX meter's demand threshold has been exceeded (the REX meter
itself must also be enabled to report this condition to the collector)
■ power has been restored to a REX meter (the REX meter itself must also
be enabled to report this condition to the collector)
■ warning conditions related to REX meters with an internal service dis-
connect switch (the REX meter itself must also be enabled to report this
condition to the collector)
For each of these exceptions, the ILC1 option board can be configured to ini-
tiate a call at the following times:
■ never
■ immediately
■ after a configurable delay of 1 to 255 minutes
■ daily
Telephone calls initiated by the ILC1 option board use the A3 ALPHA meter's
settings for alarm calls.