Sonel MPI-540 User Manual page 37

Save the measurement to the meter memory using the
memory management is contained in section 5.1.3.
The last measurement can be recalled using the

When many measurements are performed in short time intervals, the meter may
emit a large amount of heat. As a result of this, the housing of the device may be-
come hot. This is normal. In addition, the meter is equipped with the protection
against excessive temperature.

After approx. 15 consecutive measurements of the fault loop wait until the instru-
ment cools down. This limitation is due to the high current measurement and multi-
functionality of the meter.

Minimum interval between successive measurements is 5 seconds. The displayed
message
Until the message is displayed, the meter prevents any measurements.
indicates that it is possible to perform another measurement.
MPI-540 – USER MANUAL
R – resistance of the tested circuit
– reactance of the tested circuit
X
L
– voltage relative to the neutral
U
L-N
conductor
f – frequency
Selecting the bar
menu.
icon. A detailed description of
icon.
hides the
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