Major tech MT1877IV Gebrauchsanweisung - Seite 10

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4. SPECIFICATIONS

Function

Insulation

Over voltage category CAT IV 600V, CAT III 1000V

Maximum voltage

between any terminal 1000V DC/AC RMS

and earth ground

Surge Protection

Display

Polarity

Over-range

AC Response

Crest Factor

NOTE: These meters meet CAT III and CAT IV IEC 61010 standards. The

IEC 61010 safety standard defines four over voltage categories (CAT I to

IV) based on the magnitude of danger from transient impulses. CAT III

meters are designed to protect against transients in fixed-equipment

installations at the distribution level; CAT IV meters are designed to

protect against transients from the primary supply level (overhead or

underground utility service).

10 10

Range

Class2, Double insulation.

Peak IEC 61010

4000 counts LCD display, 21mm high

Automatic, (-) negative polarity indication.

"OL" mark indication

True RMS

≤3 at full scale up to 500V, decreasing linearly to

≤1.5 at 1000V