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Elma BM878
side 14
Isolationsmodstandsfunktion
ADVARSEL
Følgende ikoner brugt sammen i hele denne manual er refereret som aktive
målinger for Isolation modstandsfunktion via aktivering af TEST knappen
instrumentet eller fjernbetjeningsproben. giver en bruger valgbar
testspænding på 50V, 100V, 250V, 500V eller 1000V tilling af
isolationsmodstandsværdier. Hvis dette symbol blinker advarer det imod testspænding
ud i systemet. Vær ekstrem opmærksom ved anvendelse af for at undgå elektrisk
chok.
kan ikke udføres når instrumentet kommer med 3 biplyde og viser den
“opdagede” spændingsværdi samt advarsel, hvis der er tilsluttet et kredsløb på mere
end 30V, før er aktiv. Målinger må kun foretages på dele af en installation eller
udstyr som ikke er spændingsførende.
Forbindelse til spændingsførende kredsløb når er aktiv, kan medføre falske
resultater og kan beskadige instrumentet. Kontroller altid spændingen og fjern forsyning
fra kredsløbet før udføres.
Opsætning er illustreret herunder:
Vælg en ønsket testspænding 50V, 100V, 250V, 500V eller 1000V. Tryk på RANGE
(Test Voltage) knappen for at vælge den ønskede testspænding. Den sidst valgte
testspænding vil blive husket og brugt igen ved opstart af instrumentet.
14


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