Page 46 of 72
Prometer 100 User Manual
BGX501-943-R01
Single harmonic
high current
Any phase current individual harmonics value (2
nd
to 31
st
) is above limit value.
Every 5 second meter will scan 2
nd
to 31
st
harmonic values for one phase and in
next 5 sec meter will scan for next phase. Hence resolution of checking for each
phase is 15 second.
Internal error /
Health Status
In case of internal failure like RTC fail (as per event logged), Memory fail (as per
event logged), Battery fail or System status.
Internal RTC
battery fail
In case of internal RTC battery fail (Simulated battery failure alarm shall be
provided)
Phase wise low
voltage
Phase voltages is beneath the nominal voltage - limit value
Phase wise high
voltage
Phase voltages is above the nominal voltage - limit value
Phase wise low
power factor
Phase wise power factor is below limit value.
Reverse energy
direction
Alarm can be configured for CT reverse event (any phase). Occurred condition
(any phase) is treated as alarm condition.
Note:
•
Two LEDs are available for alarm information.
•
Multiple alarms can be selected on single LED.
•
Events selected only for alarm, shall not log event. For logging purpose event has to be selected in
event log section.
7.8.2 Indication
Alarms can be configured to indicate in one or more of the following ways:
•
Alarm LED on meter front
•
Changed digital output level
•
Indication of a logged value with a flag
The alarm LED stops flashing and the digital output returns to inactive low after the alarm state passes.
7.8.3 Display of events
The events status can be viewed on the meter’s display if the tamper information displays are configured to be
included in one of the meter’s display sequences. A more detailed description of the meter's events can be
viewed in M-Cubed. Via M-Cubed, the event log can also be printed out or saved to a file.
Sr.No Fixed Compartment
Events
Maximum
number of
events per
compartment
Snapshot
1
1
Phase wise PT Miss
100
Y
2
Over Voltage
3
Under Voltage
4
Voltage Unbalance
5
2
Phase wise CT Reversal
100
Y
6
Phase wise CT Open (HT
Meter Only)
7
CT Bypass (HT Open Only)
8
Current Unbalance
9
3
Power Fail / Power On-Off
100
N
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