Testeur Velleman Avm52Ert
# plages de mesure: * résistance de terre: 10/100/1000 ohm * tension de terre: 30 V CA (+-5Kohm/V) * précision: +- 5% de pleine échelle # système de mesure: * résistance de terre: avec un inverseur courant constant : 800Hz, +- 2mA * tension de terre: avec rectificateur, type 5Kohm/V approx. 40 - 500Hz # tension d'isolation: 1500V CA pendant 1 minute entre le circuit électrique et le boîtier # fonction autocontrôle: pour contrôler la connexion du câble aux bornes C et P et pour tester la résistance de terre auxiliaire.
239,00 €
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