Sonel WMGBMPI525 User Manual page 17

Remarks:
- The result can be stored in the memory (see point 4.1).
- When many measurements are made in short time intervals, the meter may emit a large amount
of heat. As a result of this, the housing of the device may become hot. This is a normal phenomenon
and the meter is equipped with the protection against excessive temperature. After approximately 15
consecutive measurements of short circuit loop, wait until the instrument cools down. This limitation
results from the high current measurement and multi-functionality of the meter.
- Minimum interval between successive measurements is 5 seconds. This minimum interval requirement
is controlled by the meter. A next measurement can be made only when READY! message appears on
the screen.
Additional information displayed by the meter
READY!
L-N!
L-PE!
N-PE!
f!
Error during meas-
ure
Loop circuit mal-
function!
No U
U>500 V! and con-
tinuous audio signal
The result is displayed on the screen for 20s.
The result can be recalled by pressing ENTER push-button.
The meter is ready for measurement.
U voltage is incorrect for making a measurement.
L-N
U voltage is incorrect for making a measurement.
L-PE
U voltage exceeds allowable value of 50V.
N-PE
Phase connected to N terminal instead of L terminal (for ex-
ample, exchange of L and N in the mains socket.
Temperature exceeded.
Network frequency is outside the range of 45...65 Hz.
A correct result can not be displayed.
The meter should be serviced.
! Lack of U
L-N
Before measurement, voltage at test terminals exceeds 500
V.
MPI-525 – USER MANUAL
voltage before the principal measurement.
L-N
Read out the re-
sult.
15