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54 GMC-I Messtechnik GmbH
7 Technische Kennwerte
Norm DIN EN 61557-1:2007
DIN EN 61557-2:2008
VDE-Bestimmung VDE 0413 Teil 1:2007
VDE 0413 Teil 2:2008
Isolationswiderstand
Prüfdauer: automatisch (bis Messwert stabil),
manuell (1 ... 120 s) oder Dauermessung (Lockfunktion)
Polarisationsindex (PI), Absorptionsverhältnis (DAR)
PI und DAR sind Rechenwerte. Es gelten die Spezifikationen der Isolationsmessung
Iso-Prüfspannung
Variable Prüfspannung in 50 V-Schritten einstellbar
Kurzschlusstrom bis 1,00 kV Prüfspg. 2 mA
Spannungsmessung
Frequenzmessung
Spannung der Messgröße: 50 V ... 1 kV
Durchbruchspannung
Anzeige-
bereich [Ω]
Messbereich [Ω] Prüfspannung Eigenunsicherheit Betriebsmess-
unsicherheit
0,00 M ...50,0 G 0,60 M ...10,0 G 100 V ... 250 V ±(10% v. M.+5D) ±(15% v. M.+ 7 D)
>10,0 G ... 50,0 G ±(25% v. M.+5D) ±(50% v. M.+ 20 D)
0,00 M ...250 G 0,40 M ... 50,0 G > 250 V ... 1,00 kV ±(7% v. M.+5D) ±(10% v. M.+ 7 D)
>50,0 G ... 250 G ±(25% v. M.+5D) ±(50% v. M.+ 20 D)
0,00 M ...999 G 0,40 M ... 200 G >1,00 kV ... 5,00 kV ±(7% v. M.+5D) ±(10% v. M.+ 7D)
>200 G...999 G ±(25% v. M.+5D) ±(50% v. M.+ 20 D)
t1 t2 Limit
PI
00:00 ... 01:00 ... 99:50 min 00:00 ... 10:00 ... 99:50 min 0,10 ... 4,00 ... 9,80 min
DAR
00:00 ... 00:30 ... 99:50 min 00:00 ... 01:00 ... 99:50 min 0,10 ... 1,60 ... 9,80 min
Nennwerte
Prüfspannung
Variable
Prüfspannung
Nennstrom Eigenunsicherheit
100 V, 250 V, 500 V, 1,00 kV
1,0 mA 0 ... +25% v. M.
1,50 kV, 2,00 kV, 2,50 kV
0,4 mA ± 5% v. M.
5,00 kV 0,1 mA ± 3,5% v. M.
100 V...1,00 kV 1,0 mA ± 15% v. M.
> 1,00 kV...2,50 kV 0,4 mA ± 5% v. M.
> 2,50 kV...5,00 kV 0,1 mA ± 3,5% v. M.
Messbereich Frequenz
in Hz
Impedanz Eigen-
unsicherheit
Betriebsmess-
unsicherheit
Prüfspannung dc
50 V ... 5,00 kV
——
±(2,5% v. M. + 5 D)
±(5% v. M. + 5 D)
50 V ... 1,00 kV ac/dc 15 ... 500 1 MΩ
±(2,5% v. M. + 2 D)
±(5% v. M. + 5 D)
50 V ... 1,00 kV ac/dc >500 ... 1 k 1 MΩ
±(10% v. M. + 2 D) ±(12,5% v. M. + 5 D)
Messbereich Impedanz Eigen-
unsicherheit
Betriebsmess-
unsicherheit
15,0 Hz 1,00 kHz 1 MΩ
±
(0,5% v. M. + 2 D)
±(1% v. M. + 2 D)
Parameter Einstellbereich Eigenunsicherheit Betriebsmess-
unsicherheit
Spannungsbereich 100 5000 V ±(10% v. M. + 8 D)
±
(
15% v. M. + 10 D)
Anstiegszeit 5 300 s
Messzeit 1 120 s /
Auto / Dauermessung
——
54


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