Bender ISOMETER iso1685DP-425 Manual page 82

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