Sonel MPI-530-IT - Measurement of Rcd Parameters; Measurement of RCD Disconnection Current

OPERATING MANUAL MPI-530-IT version 1.06
48
Additional information displayed by the meter
R
E
>99.9kΩm
Measuring range is exceeded.
U
N
>50V! and con-
tinuous, modulated
audio signal 
Voltage at test terminals is higher than 50 V, measure-
ment is blocked.
U
N
Voltage at test terminals is higher than 24 V but lower
than 50 V, measurement is blocked.
LIMIT!
The uncertainty due to the resistance of electrodes > 30
%. (For calculating uncertainty, measured values are tak-
en into account.)
NOISE!
The interfering signal (noise signal) is too high - the
measurement result may be affected by additional uncer-
tainty.
3.6 Measurement of RCD parameters
Note:
The measurement of U
B
, R
E
is always performed with sinusoidal current 0,4I

n
, regardless of
the settings concerning waveform and multiplication factor I

n
.
3.6.1 Measurement of RCD disconnection current
Settings
Set the rotary switch of function selection at
I
A
position.
Press F1 to enter I
n
selection mode.
Press F2 to enter the
selection mode for current
waveform.
Press F3 to enter RCD
type selection mode.