Siemens 7ME6810, Руководство по эксплуатации, Страница: 71 / 170

Data logger / Consumption alarm
The integrated data logger has 26 logging periods in which data can be stored daily, weekly or
monthly. The logger stores the consumption for totalizer 1 and totalizer 2 in the selected period.
Forward consumption is stored as a positive value and reverse consumption is stored as a
negative value. Alarm and meter status are also stored for the same period to indicate alarms
that have been active, or that revenue data has been influenced in the specific period.
The logged information has a time and date stamp. The data logger never stops storing data -
old data is overwritten following the first in/first out principle, i.e. log 1 is the last stored
information which is moved to log 2 when the next logging is made and so on.
The consumption alarm indicates that the actual consumption on totalizer 1 is above or below
the consumption limits.
Note
Invalid log date
If the log date "00.00.2000" is shown in the device display, the log period was never set.
7.6 Battery-powered operation
The MAG 8000 Standard (7ME6810) and MAG 8000 CT (7ME6820) are factory-configured for
7 years of typical operation on internal battery pack (2 D-cell). High or low temperature, frequent
use of IrDA communication, high pulse output rate, high excitation frequency in leakage
detection mode, and use of add-on communication module will reduce actual operation time.
The MAG 8000 power management function controls each power consuming element and
measures the temperature for optimal calculation of remaining battery power capacity.
Operating
7.6 Battery-powered operation
SITRANS FM MAG 8000
Operating Instructions, 03/2020, A5E03071515-AH
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