Bedienungsanleitung Metrel MD 9010 (Seite 6 von 24) (Deutsch, Englisch)

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MD 9010 General Purpose Auto – Check Digital Multimeter Operation

4 Operation

Note: All function operations described hereafter are via the Red test lead for positive

(+) polarity and Black test lead for Ground reference (-), or otherwise specified

WARNING: Before and after hazardous voltage measurements, test the voltage

function on a known source such as line voltage to determine proper meter functioning.

Functiones in„Auto V “ position

Quick Start (MD 9010)

AutoCheckTM mode is the default function in “

Auto V.” position. Press the SELECT

button momentarily to select and step through the functions:

AutoCheckTM→Continuity→EF→ACV→DCV→



→Hz→Cx→AutoCheckTM

AutoCheckTM mode (MD 9010)

This innovative AutoCheckTM feature automatically selects measurement function of

DCV, ACV or Resistance () based on the input via the test leads.

 With no input, the meter displays “Auto” when it is ready.

 With no voltage signal but a resistance below 6M is present; the meter displays

the resistance value. When below 25 is present, the meter further gives a

continuity beep tone.

 When a signal above the threshold of DC 1.2V or AC 1.5V up to the rated 600V

is present, the meter displays the appropriate voltage value in DC or AC,

whichever larger in peak magnitude.

 Overload-Alert Feature: When above rated 600V is present, the meter displays

“OL” with a warning beep tone. Disconnect the test leads from the signal

immediately to avoid hazards.

Note:

*Range-Lock Feature: When a measurement reading is being displayed in

AutoCheckTM mode, press the SELECT button momentarily 1 time can lock the

function-range it was in. The LCD annunciator “ ” turns off. Range-lock can

speed up repetitive measurements. Press the SELECT button momentarily again to

return to AutoCheckTM mode.

*Hazardous-Alert: When making resistance measurements in AutoCheckTM mode, an

unexpected display of voltage readings alerts you that the part under test is still

energized.

*AutoCheckTM nominal input impedances are slightly lower than that of common digital

multimeters. They are, in fact, more similar to that of most traditional analog

multimeters. “LoZ” will display on the LCD to remind the users in such cases. Although

not likely, if such impedance might damage your circuits, use the common impedance

Hi-Z) voltage mode for making voltage measurements on them. (

Continuity, Audible with Symbolic Display

From AutoCheckTM with “Auto” being displayed, press the SELECT button momentarily

1 time to select Continuity function. The meter displays a symbolic open-switch display

“” when it is ready. Continuity is convenient for checking wiring connections and

operation of switches. A continuous beep tone with a symbolic closed-switch display

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