Amprobe ACD-15 Pro Manuale d'uso - Pagina 10

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Hi-Z DCV, ACV & Line-Level Hz functions

Set the slide-switch function selector to the position that selects common

impedance (Hi-Z) voltage measurements. Input impedance is set at

approximately 5MΩ to minimize loading on circuits under tests. DCV is

the default function. The DC symbol "�" appears. Press SELECT button

momentarily to select ACV. The AC symbol "�" a ppears. Press momentarily

again to activate the Line-Level Hz function.

Note:

• Line-Level Hz input sensitivity varies automatically with ACV range selected

when Line-Level Hz is selected. AC 6V range has the highest and AC 600V

range has the lowest sensitivity. Measuring the signal in ACV function WHILE

selecting Line-Level Hz function in that ACV range automatically sets the

most appropriate sensitivity for higher voltage applications. This can avoid

electrical noises as in 110/220V line voltage applications for example. If the

reading shows zero due to insufficient signal levels, select Line-Level Hz

function BEFORE making measurements (at AC 6V range) will set the highest

sensitivity.