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Technical data
82
isoxx1685Dx-x25_D00272_07_M_XXEN/09.2022
Voltage ranges
Nominal system voltage range
U
n
iso1685DP...................................................................... AC 0…1000 V; DC 0…1500 V
Nominal system voltage range
U
n
isoHV1685D................................................................... AC 0…2000 V; DC 0…3000 V
Nominal system voltage range
U
n
isoLR1685DP....................................................................... AC 0…690 V; DC 0…690 V
Tolerance of
U
n
...........................................................................................................................................AC +10 %/DC +5%
Frequency range of
U
n
..................................................................................................................................... DC 0.1…460 Hz
Supply voltage
U
s
(see also device nameplate) ..................................................................................................... DC 18...30 V
Frequency range of
U
s
............................................................................................................................................................ DC
Power consumption .........................................................................................................................................................
≤
9 W
Measuring circuit for insulation monitoring
Measuring voltage
U
m
(peak value)................................................................................................................................. ±50 V
Measuring current
I
m
(at
R
F
= 0 Ω)............................................................................................................................
≤
0.7 mA
Measuring current
I
m
isoLR1685DP (at
R
F
= 0 Ω)......................................................................................................
≤
3.5 mA
Internal DC resistance
R
i
iso1685DP.............................................................................................................................
≥
70 kΩ
Internal DC resistance
R
i
isoHV1685D (two-pole coupling)......................................................................................
≥
210 kΩ
Internal DC resistance
R
i
isoHV1685D (single-pole coupling) ..................................................................................
≥
420 kΩ
Internal DC resistance
R
i
isoLR1685DP.....................................................................................................................
≥
15 kΩ *
1
Impedance
Z
i
at 50 Hz iso1685DP................................................................................................................................
≥
70 kΩ
Impedance
Z
i
at 50 Hz isoHV1685D (two-pole coupling) ........................................................................................
≥
210 kΩ
Impedance
Z
i
at 50 Hz isoHV1685D (single-pole coupling).....................................................................................
≥
420 kΩ
Impedance
Z
i
at 50 Hz isoLR1685DP........................................................................................................................
≥
15 kΩ *
1
Permissible extraneous DC voltage
U
fg
..................................................................................................................
≤
DC 1600 V
Permissible extraneous DC voltage
U
fg
isoHV1685D.............................................................................................
≤
DC 3150 V
Permissible extraneous DC voltage
U
fg
isoLR1685DP .............................................................................................
≤
DC 720 V
Permissible system leakage capacitance
C
e
.......................................................................... profile-dependent, 0…2000 μF
Response values for insulation monitoring
Response value
R
an1
(Alarm 1) and
R
an2
(Alarm 2)........................................................................................... 200 Ω…1 MΩ
Response value
R
an1
(Alarm 1) and
R
an2
(Alarm 2) isoLR1685DP ................................................................... 20 Ω…100 kΩ
Condition response value
.........................................................................................................................................R
an1
≥
R
an2
Upper limit of the measuring range for setting for measurement profile "Fast"
C
emax
= 2000 μF (isoxx1685DP only) 50 kΩ
Upper limit of the measuring range for setting for measurement profile "High capacity"
C
emax
= 500 μF ................ 200 kΩ
Relative uncertainty iso 1685DP
(10 kΩ…1 MΩ) (acc. to IEC 61557-8)........................................................................................................................... ±15 %
(0.2 kΩ…< 10 kΩ)......................................................................................................................................... ±200 Ω
±15 %
Relative uncertainty isoHV1685D
(10 kΩ…1 MΩ) (acc. to IEC 61557-8)........................................................................................................................... ±15 %
(0.2 kΩ…< 10 kΩ)........................................................................................................................................... ±1 kΩ
±15 %
Relative uncertainty isoLR1685DP
(1 kΩ…100 kΩ) (acc. to IEC 61557-8)...........................................................................................................................±15 %
(20 Ω…< 1 kΩ)...............................................................................................................................................
±20 Ω ±15 %
Hysteresis............................................................................................................................................................................. 25 %
Содержание ISOMETER iso1685DP-425
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