42
IM CW500-02EN
Rms voltage V [Vrms]
Range
600.0/1000 V
Display digits
4 digits
Effective input
range
1% to 120% (rms) of range and 200% (peak) of range
Display range
0.15% to 130% of range (displays 0 for less than 0.15%)
Crest factor
3 or less
Measurement
system
Complies with IEC61000-4-30
Accuracy
Measurement waveform
Sine wave 40 to 70 Hz at 600 V range
10% to 150% for nominal voltage 100 V or higher:
nominal voltage±0.5%
Outside the above range and 1000 V range:
±0.2% rdg ± 0.2%rng
Input impedance
Approx. 1.67 MΩ
Equation
( )
=
∑
−
=
1
0
2
1
n
i
ci
c
V
n
V
i: sampling point No
*
n: number of samples over 10
cycles, 12 cycles
c: measurement channel
*
For 50 Hz, calculation is performed on 10 waveforms (8192
points). For 60 Hz, calculation is performed on 12 waveforms
(8192 points).
1P2W-1 to 4
V
1
1P3W-1, 2
V
1
,
V
2
3P3W-1, 2
Line voltage
V
12
,
V
23
,
V
31 =
√
(V
23
^2
+
V
12
^2
+
2
×
V
23
×
V
12
×
cos
θ
V)
*
θ
V = relative angle V
12
,
V
23
3P3W3A
Line voltage
V
12
,
V
23
,
V
31
3P4W
Phase voltage
V
1
,
V
2
,
V
3
Line voltage
V
12
=
√
( V
1
^2
+ V
2
^2
-
2
×
V
1
×
V
2
×
cos
θ
V
1
)
V
23
=
√
( V
2
^2
+ V
3
^2
-
2
×
V
2
×
V
3
×
cos
θ
V
2
)
V
31
=
√
( V
3
^2
+ V
1
^2
-
2
×
V
3
×
V
1
×
cos
θ
V
3
)
*
θ
V
1
= phase angle V
1
,
V
2
, θ
V
2
= phase angle V
2
,
V
3
, θ
V
1
= phase angle
V
3
,
V
1
Specifications