3.2
Measured Quantities
Measured Quantities – Voltage
50 / 60 Hz
measuring range
40 ÷ 70 Hz
uncertainty
± 10 mHz
Voltage
voltage input option
standard variant („230“)
measuring range line-to-neutral
measuring range line-to-line
temperature drift
300V CAT IV
permanent overload
peak overload, 1 second
burden power (impedance)
< 0.03 VA (Ri = 7.84 MΩ)
Voltrage Unbalance
measuring range
0 ÷ 10 %
measuring uncertainty
± 0.3% of rdg or ± 0.3
THDU
measuring range
0 ÷ 20 %
measuring uncertainty
± 0.5
reference conditions
measuring range
measuring uncertainty
twice the levels of class II acc. to IEC 61000–4-7 ed. 2
spec-U-en
Frequency
f
NOM
– nominal frequency
U
NOM
(U
DIN
)– rated voltage
180 ÷ 280 V
AC
4 ÷ 420 V
AC
7 ÷ 720 V
AC
intrinsic uncertainty (t
A
=23±2ºC)
+/- 0.05 % of rdg ± +/- 0.05 % of rng
+/- 0.03 % of rdg ± +/- 0.01 % of rng / 10 ºC
measurement category
1252 V
AC
(UL–N)
2800 V
AC
(UL–N)
Harmonics up to 50
th
order (40
th
order @ 60 Hz)
other harmonics up to 200 % of class 3 acc. to IEC 61000–2-4 ed. 2
10 ÷ 100 % of class 3 acc. to IEC 61000–2-4 ed. 2
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