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109
h) Contactloze AC-netspanningsdetectie “NCV”
ƽ
De “NCV”-detector bevindt zich aan de
bovenkant van de behuizing en reageert
enkel op wisselspanning van 200 tot 1000
V/AC.
Deze functie dient alleen om snel naar wissel-
spanningsvoerende leidingen en kabels te zoe-
ken. Voor werken aan stroomleidingen moet de
spanningsvrijheid met de traditionele contact-
testmethode (spanningzoeker) worden gecon-
troleerd!
- De meetleidingen zijn niet nodig.
- Schakel de DMM in en kies een willekeurige meetfunctie.
De contactloze spanningsdetectie is bij alle meetfuncties
actief.
- Voer het DMM met de “NCV”-sensor (bovenste behui-
zingsrand) langs het testobject. De detectiediepte reikt van
ca. 3 cm bij 230 V/AC tot ca. 8 cm bij 1000 V/AC.
- Als een spanningsvoerende leiding wordt ontdekt, begint
de “NCV”-lichtindicator (13) op te lichten.
- Schakel de DMM na het meten uit.
ƽ
Bij afgeschermde leidingen, te diep liggende
leidingen of gewrongen aders kan de weergave
negatief worden beïnvloed.
i) Frequentiemeting
- Schakel de DMM in en kies de meetfunctie “Hz“.
- Steek het rode meetsnoer in de V-meetbus (9); het zwarte
meetsnoer in de COM-meetbus (8).
- Maak nu met de beide meetstiften contact met het meet-
object (generator, signaal, enz.).
- De huidige meetwaarde wordt op het display weergegeven.
- Verwijder na het meten de meetsnoeren van het meetob-
ject en schakel de DMM uit.
109


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