Technical data
62
isoMIL425_D00203_03_M_XXEN/03.2019
Frequency range
U
s
..................................................................................................................................... 47…63 Hz
Power consumption .............................................................................................................................. ≤ 3 W, ≤ 9 VA
IT system being monitored
Nominal system voltage
U
n
................................................................................................. 3(N)AC, AC/DC 0…400 V
Tolerance of
U
n
................................................................................................................................................... +25 %
Frequency range of
U
n
........................................................................................................................ DC, 15…460 Hz
Measuring circuit
Measuring voltage
U
m
........................................................................................................................................ ± 12 V
Measuring current
I
m
at
R
F
,
Z
F
= 0 Ω ............................................................................................................ ≤ 110 μA
Internal resistance
R
i,
Z
i
................................................................................................................................... ≥ 115 kΩ
Permissible system leakage capacitance
C
e
(R mode) ................................................................................... ≤ 300 μF
Permissible system leakage capacitance
C
e
(Z mode)........................................................................................ ≤ 1 μF
Permissible extraneous DC voltage
U
fg
............................................................................................................. ≤ 700 V
Response values
Response value
R
an1
...................................................................................................................... 2…990 kΩ (40 kΩ)*
Response value
R
an2
...................................................................................................................... 1…980 kΩ (10 kΩ)*
Relative uncertainty
R
an
(R mode or Z
F
≈ R
F
).......................................................................... ± 15 %, at least ±1 kΩ
Hysteresis
R
an
.................................................................................................................................. 25 %, at least 1 kΩ
Response value
Z
an1
......................................................................................................................... 11…500 kΩ (off)*
Response value
Z
an2
......................................................................................................................... 10…490 kΩ (off)*
Relative uncertainty
Z
an
............................................................................................................ ± 15 %, at least ±1 kΩ
Hysteresis
Z
an
................................................................................................................................... 25 %, at least 1 kΩ
Undervoltage detection ..................................................................................................................... 10…499 V (off)*
Overvoltage detection........................................................................................................................ 11…500 V (off)*
Relative uncertainty
U
.................................................................................................................. ± 5 %, at least ± 5 V
Relative uncertainty depending on the frequency ≥ 400 Hz....................................................................-0.015 %/Hz
Hysteresis
U
.......................................................................................................................................... 5 %, at least 5 V
Time response
Response time
t
an
of
R
F
= 0.5 x
R
an
and
C
e
=1 μF according to IEC 61557-8 ................................................... ≤ 10 s
Response time
t
an
of
Z
F
= 0.5 x
Z
an
...................................................................................................................... ≤ 5 s
Start-up delay
t
..................................................................................................................................... 0…10 s (0 s)*
Response delay
t
on
................................................................................................................................ 0…99 s (0 s)*
Delay on release
t
off
............................................................................................................................... 0…99 s (0 s)*
