Elster A1120, User Manual

Page: 120 / 157

Power Master Unit
21
___________________________________________________________________________
Rate Registers
This option is used to close the relay if any of the rate
registers or combinations of the rate registers are
active.
Using the buttons
Use the ≤ button to select the Rate(s)
Remove a rate register, use the ≥
To St all rate registers, use the ‹‹Remove all rate registers, Use the ››
3.4.10 Load Profiling
The A1140 meter records block demand only.
The Integration period
may be set to 1, 2, 3, 4, 5,
6, 10, 15, 20, 30 or 60 minutes.
Up to four channels can be selected to be
included in the load profile definition.
3.4.11 Meter Options
Clock
Clock source -
The time keeping of the
meter can be derived from the AC supply
or from the internal crystal oscillator.
If AC supply is selected, the crystal will
take over in the event of a supply failure.
Load profiling –
The A1140 can be set to observe daylight savings (See 3.4.13, Time and date) or to
ignore daylight savings.