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ProcessMeter™
Stroomafgiftefuncties gebruiken
25
Handmatig getrapte mA-afgifte
Als de draaischakelaar zich in de stand OUTPUT mA [
bevindt en de uitgangen op een juiste belasting zijn
aangesloten, produceert de meter een stabiele mA-DC-
afgifte.[ De meter begint met het genereren of simuleren
van 0%. Gebruik de druktoetsen om de stroom in stappen
van 25% te verhogen of te verlagen (zie tabel 9). Zie tabel
10 voor de mA-waarden bij elke stap van 25%.
Selecteer genereren of simuleren door de uitgangen
SOURCE of SIMULATE te kiezen.
Als de meter de geprogrammeerde stroom niet kan
leveren omdat de belastingsweerstand te hoog is of de
spanning van de lusvoeding te laag is, verschijnen er
streepjes (-----) op het numerieke display. Als de
impedantie over de SOURCE-aansluitingen laag genoeg
is, hervat de meter het genereren.
Opmerking
De in tabel 8 beschreven druktoetsen COARSE
en FINE zijn te gebruiken wanneer u
de stroomafgifte handmatig getrapt bijstelt.
Tabel 9. Druktoetsen voor het getrapt bijstellen van
de mA-stroomafgifte
Druktoets Bijstelling
X
M
% STEP
Verhoogt de mA-afgifte met de
volgende stap van 25%
% STEP
G
W
Verlaagt de mA-afgifte met de
volgende stap van 25%
Span Check Stelt in op de 100%-waarde
Span Check
Stelt in op de 0%-waarde
Tabel 10. Getrapte mA-waarden
Waarde (voor elke bereikinstelling)
Stap 4 tot 20 mA 0 tot 20 mA
0% 4,000 mA 0,000 mA
25% 8,000 mA 5,000 mA
50% 12,000 mA 10,000 mA
75% 16,000 mA 15,000 mA
100% 20,000 mA 20,000 mA
120% 24,000 mA
125% 24,000 mA
29


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