17
Universal Energy Meter MEg40
+
us, the data reading time can be signicantly reduced, however the new measured data
will be saved into a new data le after the data transfer is completed.
After communication is nished with interruption of measurement, the new
measurement must be programmed. rough the serial communication, the measured
data can be read both from the internal data memory (4 MB) and from the 16 MB
memory card.
However, the data transfer from the 16 MB memory card is more ecient, when the
16 MB memory card is taken out from the instrument MEg40
+
and inserted into the
memory card reader connected to PC with the active reader control program. en the
data are read at the speed of 921.6 kbit/sec and the full card is read out within 4 minutes.
During one reading, you can read gradually up to eight memory cards. e operator
does not need PC to take out the 16 MB memory card with the measured data from the
instrument MEg40
+
and insert the new empty 16 MB memory card into the instrument
MEg40
+
. en the operator hands on the 16 MB memory cards with the measured data
for reading and deleting. A detailed description of the data reading from the 16 MB
memory card is given in a separate chapter of this manual.
7/ MAINTENANCE INSTRUCTIONS
e universal energy meter MEg40
+
does not include any movable parts, and therefore
it does not require any mechanical maintenance other than common cleaning of the
panel. To clean, you can only use soft materials and non-aggressive solutions, preferably
water with a detergent. It is necessary to ensure that the vents in the rear panel of the
instruments are open through.
In demanding climatic and operating conditions, the manufacturer recommends you
to check the accuracy of measurements in the interval from 4 to 8 years of operation,
depending on the importance of the place of measurement. Accuracy of measurement is
checked using a multimeter with accuracy of voltage and current measurement at least
one class higher than the accuracy of the instrument MEg40
+
. e manufacturer of
the instrument MEg40
+
recommends e.g. multimeter Agilent 34401A. If you detect an
error bigger than corresponding to the specication of the instrument, MEg40
+
must be
recalibrated. You can order the measurement accuracy check and calibration also at the
manufacturer of the instrument MEg40
+
.
8/ CONTENTS OF THE SET
e set of the universal energy meter MEg40
+
includes:
• 1 instrument MEg40
+
,
• 2 eccentrics,
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