Switching Times; Seasons And Change Of Season Dates; Exclusion Dates - Elster A1140 User Manual

16
A1120/40 - Electronic Polyphase Meter
11.3

Switching Times

Up to 48 switching times can be set, each allocated to a specified season.
Each switching event can be enabled for any combination of days of the week.
These are the transition times when one or more TOU registers become active or inactive.
Each switching time is defined in hours and minutes. A 24-hour clock is used.
The above diagram shows the tariff for TOU1 and TOU2. TOU1 is active from 06:00 to 18:00.
TOU2 is active from 18:00 to 06:00. It is possible for none or multiple TOU registers to be
programmed to be active at any particular time period.
11.4

Seasons and Change of Season Dates

Up to 12 Seasons may be specified and at least one Season must be programmed for the TOU
registers to be available. Each Season is activated by one or more Change of Season Dates.
Up to 24 Change of Season Dates are available,
each date specifying the start of a new Season.
These may refer to a different Season, or the
same Season may be used more than once in a
year.
The old Season ends at the instant the new
Season starts.
A new Season starts at 00.00 of the specified
day.
Start dates are specified as absolute (dd.mm)
dates.
The diagram shows three Seasons. Season 1 is
in operation from October to February, Season 2
from March to May and Season 3 from June to
September.
11.5

Exclusion Dates

There may be special days in the year when the tariff does not follow the normal pattern, e.g. public
holidays. These can be taken care of by invoking Exclusion Dates.
Up to 32 Exclusion Dates can be programmed.
© Elster Metering Limited - M181 001 2G - 5/2010
06:00
Switching times
24 hours
18:00