13
1.10.12. Buzzer
It is used for audible alarm functions of the meter. For example if me-
ter terminal cover is removed, meter can produce alarm tone for a
defined period of time if this feature is turned on.
1.10.13. Over- Under Voltage Record
LSM series meters can optionally support detection and recording of
over voltage and under voltage events. When instant voltage exceeds
the defined over voltage parameter (96.73.20) value or falls below
the defined under voltage parameter (96.73.21) value, over voltage
or under voltage event records the beginning time of the respective
event. When the over or under voltage condition ends, the end time of
the respective event is recorded and the counter and total duration of
that event are updated. The start-end time of over voltage and under
voltage events can be read using the OBIS codes of 96.77.30*1,...,12
and 96.77.40*1,...,12 respectively. The total number and duration of
over voltage events can be read with OBIS codes of 96.77.30 and
96.77.31, whereas those of under voltage events can be read using
the OBIS codes of 96.77.40 and 76.77.41 respectively.
All of the Over Voltage and Under Voltage parameters can be chan-
ged through Features tab of the meter reading software. The para-
meters related to over and under voltage events that can be changed
are as follows:
val_ov(96.73.20):
The value of voltage over which over-voltage is
detected
val_uv(96.73.21):
The value of voltage below which under-voltage
is detected
ouv_record_delay(96.73.24):
the minimum duration of an over/un-
der voltage event to start or end recording.
1.10.14. Over Current Record
LSM series meters can optionally support detection and recording of
over current events. When instant current exceeds the defined over
current parameter (96.73.22) value, over current event records the
beginning time of the event. When the over current condition ends, the
end time of the event is recorded and the counter and total duration of
the event are updated. The start-end time of over current events can
be read using the OBIS codes of 96.77.50*1,...,12. The total number
and duration of over current events can be read with OBIS codes of
96.77.50 and 96.77.51 respectively.
All of the Over Current parameters can be changed through Features
tab of the meter reading software. The parameters related to over
current events that can be changed are as follows:
val_oi(96.73.22): The value of current over which over current is de-
tected
oi_record_delay(96.73.24): the minimum duration of an over current
event to start or end recording.
1.10.15. Auto Disconnect LR on Over/Under Voltage
LSM Series meters can optionally support disconnecting the latching
FK.104 (Rev.01) 19.10.2018
