Managed Meter Irregularities

The following are the three possible managed meter irregularities that can be detected:

Irregularities due to meter roll over - This irregularity is detected when the current meter reading is close to the maximum meter reading.
Irregularity due to a decrease in the meter reading - This irregularity is detected when there is a decrease in the meter reading which will result in negative consumption.
Irregularity due to zero meter reading - This irregularity is detected when the meter reading is zero, which results in negative consumption.

In order to detect these irregularities, you can create and configure a reaction that automatically detects meter irregularities on its execution. You can also manually detect irregularities by specifying the number of days for which you want to detect the meter irregularities.

When the reaction executes at the specified time, it detects any irregular meter readings for all the managed meters. If any irregularities are observed during this time period, an event is raised.

If the irregularity has occurred due to a decrease in the meter reading or due to zero meter reading, it is reported as a fault event. However, if the irregularity has occurred due to the warning limit being exceeded, it is reported as a status event.

The properties of the managed meter display more information about the detected irregularity. Some examples of such properties are Irregular Reading which is set to True whenever there is an irregularity detected, Irregular Reading Time that displays the date and time of the irregular reading, and so on. However, in order to detect the irregularities, you must ensure that the meters have their notification profile set to either Meter rollover, Meter reading decrease, or Zero meter reading.

In order to treat the event, you must first correct the irregularity from the manual correction application and then run the irregularity check once again.

NOTE:
If the managed meter has irregular readings, then for such a meter, the consumption cache will not be generated from the date on which the meter readings are irregular, till the irregularity is rectified. The irregular readings can be corrected from the manual correction application.

Following is a list of meter properties that display in the Operation tab and their description.

Meter Property	Description
Irregularity Checked	Date and time when the irregularities of all the configured managed meters were checked.
Irregular Reading	Displays Yes if the meter has an irregular reading. If there were no irregularities detected, No displays.
Irregular Reading Time	Date and time of the irregular reading.
Meter Reading	Most recent meter reading when the irregularity check was done.
Input Media Unit	Unit in which the meter reading is stored.
Meter Reading Time	Date and time of the most recent meter reading.
% Near Maximum Reading	Percentage of the most recent meter reading with respect to the maximum meter reading. For example, if the maximum meter reading is 1000 and the most recent meter reading is 750, then this property value will be 75%. If the maximum meter reading is not specified, then the maximum limit of the GMSreal type shall be considered a the maximum meter reading.
Warning Limit Exceeded	Displays Yes if the most recent meter reading has exceeded the warning limit set in the notification profile for the meter roll over setting. Displays No, if the most recent meter reading is below the warning limit set in the notification profile for the meter roll over setting. For example, if the maximum meter reading is 1000, the warning limit set in notification profile is 95% and the most recent meter reading is 960, then this property value will be Yes.
Consumption	Consumption value of the managed meter before an irregularity was detected in the meter
Output Media Unit	Unit in which the consumption value is displayed in reports.
Consumption Time	Date and time of the consumption.