Mega MEg40+ - 16 MB memory card and memory card reader; 1; PURPOSE AND USE; 2; OPERATING CONDITIONS OF THE INSTRUMENT MEG40+ WITH 16 MB MEMORY CARD

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16MB memory card and memory card reader
1/ PURPOSE AND USE
Easy, on time, personnel and technical means undemanding collection of data measured
by the instrument MEg40
+
is allowed by a special 16 MB memory card with Flash
memory and a reader for eight memory cards.
e use of the 16MB memory card allows you to record U
av
, U
max
, U
min
, I
av
, I
max
, P
av
, P
max
,
Q
av
of all three phases and store energies in the set of six registers with the recording
interval of 5 min, register 30 voltage events and record extreme currents in each interval
with the length of 9 hr 20 min for the time period longer than 795 days, i.e. longer than
2 years and 2 months.
e universal energy meter MEg40
+
will start writing only into a completely deleted
16 MB memory card, onto which at rst the measurement head is written. Only this
instrument MEg40
+
can write down into such a marked memory card. Other instruments
detect any discrepancy of measurement heads and report them on the display. After the
data are read out from the memory card by the reader and transferred into PC, it is
possible to delete the data recorded on the card using a special conrmed command.
en the card can be used to record data in any instrument MEg40
+
.
2/ OPERATING CONDITIONS OF THE INSTRUMENT MEG40
+
WITH 16MB MEMORY CARD
2.1 Programming and start of measurement of the instrument MEg40
+
with memory card
e programming and start of the measurement of the instrument MEg40
+
equipped with
the memory card does not dier from the programming and start of the measurement
of the instrument MEg40
+
without the memory card. e dierence consists in the time
during which the memory is deleted; the deletion time of the (16 MB) memory card and
the (4 MB) internal data memory MEg40
+
increases from the original 20 sec to about
100 sec. We can assume that when the instrument MEg40
+
with the memory card is
programmed, a wider range of recorded parameters and higher recording frequency will
be selected.
2.2 End of measurement of the instrument MEg40
+
with memory card
In the linear recording mode, the record is ended after the memory card capacity is
used up (the internal data memory capacity is not used) or after the measurement end is
instructed by means of the control program from PC.