Manual Metrix MX 20 (page 24 of 68) (English, German, French)

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MX 20

· Relier le cordon noir à la borne COM et le cordon rouge soit à la

borne mA pour mesurer des courants < 200mA, soit à la borne A

pour mesurer des courants jusqu’à 10 A.

· Il est conseillé de choisir au départ le calibre le plus élevé possible

(10 A), lorsque l’ordre de grandeur du courant à mesurer n’est pas

connu.

· Ne relier le multimètre en série dans le circuit à mesurer qu’au

dernier moment, et enfin mettre en service le circuit à mesurer.

· Si le calibre choisi est trop élevé, couper d’abord l’alimentation du

circuit mesuré, ensuite changer la position du commutateur rotatif

et remettre le circuit en service.

· Ne jamais changer de calibre en cours de mesure, ni déconnecter

les cordons de mesure: des extra-courants de commutation et des

surtensions peuvent prendre naissance, qui risquent d’endomma-

ger le multimètre ou de provoquer des ruptures intempestives des

fusibles.

· Afin de limiter tout échauffement et d’éviter les dérives thermi-

ques, il est conseillé de limiter le temps de mesure des courants

forts (5 A et 10 A) à quelques dizaines de secondes.

3.4.7 MEMORISATION DES MESURES3.4.7 MEMORISATION DES MESURES

3.4.7 MEMORISATION DES MESURES

· La touche DATA HOLD donne accès au mode mémoire pour les

fonctions "conventionnelles" (Voltmètre, Ampèremètre, Ohmmè-

tre) du multimètre.

· Un premier appui sur cette touche "fige" la valeur numérique

affichée. Un deuxième appui efface l'affichage et permet d'effec-

tuer une nouvelle mesure.

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Metrix MX 20 Manual

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