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Elma 5800 side 15
Relativ funktion
Den relative målefunktion gør, at man kan foretage målinger relative til en gemt
referenceværdi. En referencestrøm – eller spænding kan gemmes og målinger kan så
foretages i sammenligning med disse.
Den viste displayværdi vil så være differencen mellem referenceværdien og den målte
værdi.
Note! Relativfunktionen er ikke aktiv i 4-20mA funktionen.
1. Udfør målingen som beskrevet i tidligere måleafsnit.
2. Tryk på ”REL” knappen for, at gemme målingen, ”REL” indikeringen i form af en
trekant, vil fremkomme på displayet.
3. Øverste venstre displayvisning viser margin imellem begyndelsesværdi og
nuværende værdi.
Højre øverste displayvisning viser begyndelsesværdien. Hoveddisplayet viser
værdien, som forefindes efter man har foretaget sin REL test.
4. Tryk på ”EXIT” knappen for at returnere fra relativfunktionen.
Visning af baggrundsbelysning
Tryk på knappen for, tænde for baggrundsbelysningen. Baggrundsbelysningen vil
automatisk slukke efter fastsat tid (ca. 10 sek.).
Tryk på ”EXIT” knappen for, at slukke manuelt for baggrundsbelysningen.
Hold funktion
Hold funktionen fryser aflæsningen i displayet. Tryk 1 eller 2 gange for at aktivere/afbryde
hold funktionen.
PEAK Hold
PEAK Hold funktionen opfanger peaks fra AC/DC strøm eller spænding. Elma 5800 kan
opfange negative eller positive peaks, så hurtigt som 1ms varighed.
Tryk og hold ”PeakHold (HOLD)” knappen nede. ”PEAK” visning vil fremkomme på
hoveddisplayet og ”MAX”/”MIN” vil fremkomme henholdsvis i øverste venstre og højre
displayvisning. Instrumentet vil opdatere displayet, hver gang en lavere PEAK værdi
måles. Tryk på ”EXIT” knappen returnere fra Peak Hold funktionen.
Auto sluk funktionen fungerer ikke i denne funktion.
15


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