Mega Meg39, User Manual

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PQ monitor MEg39 – user manual
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Uncertainties of measurement and measuring parameters of voltage quality in the
testing states 1, 2, 3 according to the standard EN 61000-4-30, ed. 2
LV, MV, HV level, f = 50 Hz
Parameter Class Uncertainty Measuring range
Frequency A ± 2 mHz 42.5 Hz – 57.5 Hz
Voltage A ± 0.1 % U
n
10 % U
n
– 150 % U
n
Flicker P
st
A 5 % P
st
IEC 61000-4-15, ed. 2
P
st
(0.2 – 10.0)
1 – 4 000
changes/min
Flicker P
inst, max
A 8 % P
st
P
st
= 1.0
sinus, right-angle
Voltage phenomena A Amplitude: ± 0.2 % U
n
Duration: ± 1 period
5 % U
n
– 150 % U
n
0.02 sec – 60 sec
Interruption A Duration: ± 1 period 0.02 sec – 180 sec
Asymmetry A ± 0.1 % 0.5 % u
2
– 5 % u
2
0.5 % u
0
– 5 % u
0
Harmonic voltages A 5 % U
harm
, U
harm
≥ 1 % U
n
0.05 % U
n
, U
harm
< 1 % U
n
10 % – 200 % class 3
IEC 61000-2-4
Interharmonic
voltages
A 5 % U
harm
, U
harm
≥ 1 % U
n
0.05 % U
n
, U
harm
< 1 % U
n
10 % – 200 % class 3
IEC 61000-2-4
Signals in voltage A ± 5 % U
sig
for
3 % U
n
≤ U
sig
≤ 15 % U
n
,
± 0.15 % U
n
pro
1 % U
n
≤ U
sig
≤ 3 % U
n
0.5 % U
n
– 15 % U
n
Voltage deviations A ± 0.1 % U
n
10 % U
n
– 150 % U
n
Time base
1)
S ± 1 sec in 24 hrs -
1) without GPS connection