Page 33= Key 1 = Key 2 = Key 3 = Maximum or consumption = Minimum or supply
Period of storage
The more mean values are marked for storage in the ring
buffer, the shorter becomes the period of storage. With
the factory's presettings
Mean values: U1, U2, U3, I1, I2, I3, P1, P2, P3
Averaging time: 15 minutes .
The mean values of about 1 year are saved in a device
with 512kRAM. In devices with 128kRAM, this duration
is about 3 months. If this period is over, the most ancient
mean values are overwritten.
If various averaging times are assigned to the mean
values to be stored, more room for storage can be required,
and the period of storage can get much shorter.
If only 38 seconds are indicated for the period of storage,
it cannot be granted any more, that the selected values
are saved in the UMG 503. To enlarge the period of
storage, you can remove some measured values with
large periods or increase little periods of storage.
Attention!
After the selection of the measured values to be saved,
the actual period of storage must be checked! If the
period of storage is below 38 seconds, it cannot be
granted, that the selected values are saved in the
UMG 503.
Selecting menu PRG
(see chapter program-
ming), the following in-
dication appears first:
Text flashing Peak values
Lowest values
SELECT
PRG
Scroll to the indication
besides using key 3 .
Here, for example, the
period of storage is
estimated at more than
one year.
With key 2 the selec-
tion of the menu PRG
is confirmed, and the
text SELECT disap-
pears.
PRG
Y.M
D.H
M.S
PRG
1year, 5months, 18days, 13hours, 45minutes, 0seconds
An estimate of the period of storage can be read out in
menu PRG.
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