Operating & Maintenance Instructions
21
The count and time and date stamps can be included in the display sequence.
An event is detected if the meter runs in reverse for a period greater than 5 seconds.
Reverse energy reading
Irrespective of whether the meter is set to import only power flow insensitive mode, reverse kWh
power flow will be independently recorded.
Theft Resistant Measurement
Theft Resistant Measurement mode measures the sum of the modulus of each phase
(
│
kWh [L
1
]
│
+
│
kWh [L
2
]
│
+
│
kWh [L
3
]
│
)
The Reverse Energy Event Alarm, Reverse Energy Count and Reverse kWh Register respond
only to reverse power flow and continue to function as in normal operation.
Reverse energy Alarm (Import only meter)
The reverse run indication, which responds to the total system power flow, can be inhibited if
required.
Per Phase Reverse Run Indication
Any phase in reverse run can be indicated on the Liquid Crystal Display by flashing the L
1
, L
2
or
L
3
phase indicators.
13.2.3 Power Fail
A count of the cumulative number of power downs to a maximum of 65,535 is recorded.
The register will then roll over to 0.
A time and date stamp of the three most recent events is recorded. The count and time and date
stamps can be included in the display sequence.
13.2.4 End of Billing Event
A count of the number of end of billing events to a maximum of 65,535 is recorded.
The register will then roll over to 0. Time and date stamps together with the source of the billing
reset for the three most recent events is recorded. The count and time and date stamps can be
included in the display sequence.
The message ‘Reset’ is displayed each time an End of Billing event takes place.
13.2.5 Programming Event Log
A count of the number of programming events to a maximum of 65,535 is recorded. A time and
date stamp of the three most recent events together with the source (optical or RS232 data port)
is recorded. The identity of the programming user is also stored. The count and time and date
stamps can be included in the display sequence.
Note: Programming events are communications sessions where the meter configuration or data
has been changed. Reading data only does not count as a programming event.
Содержание A1120
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Страница 3: ...A1120 40 Programmable Electronic Polyphase Meter Chapter 1 Introduction M181 001 1B 5 2009 ...
Страница 4: ...Minor Change Record Date Modification 7 5 2009 Format change ...
Страница 7: ...A1120 40 Programmable Polyphase Meter Chapter 2 Operating Maintenance Instructions M181 001 2G 5 2010 ...
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Страница 52: ...44 A1120 40 Electronic Polyphase Meter Elster Metering Limited M181 001 2G 5 2010 Figure 3 Typical Nameplate ...
Страница 53: ...Operating Maintenance Instructions 45 Figure 4 Load Curves ...
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