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Elma BM869 side 13
nS konduktans, modstand & gennemgang
Drej omskifteren til (se nedenstående figur). Tryk på SELECT knappen flere gange for
at vælge funktion/er. Sidste valgte funktion vil blive husket i hukommelsen.
Note! Konduktans er det omvendte af resistans. I realiteten udvider modstandsmålingerne
sig til Giga-Ohm for måling på lækager.
Gennemgangsfunktionen er brugbar ved kontrol af ledningsforbindelser og
funktionsafbrydere. En kontinuerlig bip tone indikerer en ”hel” ledning.
ADVARSEL! Ved brugen af gennemgangstest og modstandstest i et spændingsførende
system, kan dette give fejlresultater og i værste fald ødelægge instrumentet. I mange
tilfælde må den formodet komponent frakobles fra systemet, for at man kan opne en
præcis måling.
µ
µµ
µ
A, mA (DCmA med %4-20mA) og A strømfunktioner
Drej omskifteren til enten µA eller mA (se nedenstående figur). Tryk på SELECT knappen
for at vælge DC
4-20%
, DC
+AC
, DC+AC
+AC
og AC
+Hz
. Sidste valgte funktion vil blive husket i
hukommelsen.
I DC mA funktionen vil loop procent(%4-20mA) aflæsninger blive vist samtidigt. Det er sat
til, at 4mA = 0% (zero) og 20mA = 100% (span) med 0,01% høj opløsning for test og
kontrol af eksternt forsynet loopstrøm i industrielle applikationer.
13


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