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8845A/8846A
Bedienungshandbuch
1-20
Wechselstrom
Die folgenden Wechselstromspezifikationen gelten für sinusartige Signale mit Amplituden größer 5 % von Bereich. Für
Eingänge von 1 % bis 5 % von Bereich, zusätzlichen Fehler von 0,1 % von Bereich hinzufügen.
Eingangsschutz....................................................... Zugängliche Sicherungen, 11 A/1000 V und 440 mA/1000 V,
beschränkt auf 400 mA kontinuierlich 550 mA für 2 Minuten ein,
1 Minute aus.
Messmethode ......................................................... Wechselstromgekoppelter Echteffektivwert, gleichstromgekoppelt mit
Sicherung und Nebenschluss (kein sperrender Kondensator).
Wechselstromfilter-Bandbreite
Langsam ............................................................. 3 Hz bis 10 kHz
Mittel ................................................................... 20 Hz bis 10 kHz
Schnell ................................................................ 200 Hz bis 10 kHz
Spitzenfaktor-Fehler (trifft nur auf nicht-sinusförmige Spannungen zu)
Max. Spitzenfaktor .............................................. 5:1 auf Gesamtmessbereich
Zusätzliche Spitzenfaktorfehler (<100 Hz).......... Spitzenfaktor 1-2, 0,05 % von Gesamtmessbereich
Spitzenfaktor 2-3, 0,2 % von Gesamtmessbereich
Spitzenfaktor 3-4, 0,4 % von Gesamtmessbereich
Spitzenfaktor 4-5, 0,5 % von Gesamtmessbereich
Eingangskenndaten
Auflösung
Bereich Auflösung
4½ Stellen 5½ Stellen 6½ Stellen
Parallelwiderstand
(Ohm) rdenspannung
100 μA [1] 100,0000 μA 10 nA 1 nA 100 pA 100 Ω <0,015 V
1 mA[1] 1,000000 mA 100 nA 10 nA 1 nA 100 Ω <0,15 V
10 mA 10,00000 mA 1 μA 100 nA 10 nA 1 Ω <0,025 V
100 mA 100,0000 mA 10 μA 1 μA 100 nA 1 Ω <0,25 V
400 mA [4] 400,000 mA 100 μA 10 μA 1 μA 1 Ω <0,50 V
1 A [3] 1,000000 A 100 μA 10 μA 1 μA 0,01 Ω <0,05 V
3 A [2][3] 3,00000 A 1 mA 100 μA 10 μA 0,01 Ω <0,05 V
10 A [3] 10,00000 A 1 mA 100 μA 10 μA 0,01 Ω <0,5 V
[1] Nur 8846A
[2] Teil von 10-A-Bereich
[3] Nur an Anschlüssen an der Vorderseite verfügbar
[4] 400 mA nur in Softwareversion 1.0.700.18 oder höher verfügbar. 400 mA kontinuierlich; 550 mA für 2 Minuten ein,
1 Minute aus; maximaler Spitzenfaktor 3:1 bei 400 mA
32


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