Major tech MT1877IV, Инструкция по эксплуатации, Страница: 10 / 16

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Insulation Class2, Double insulation.
Over voltage category CAT IV 600V, CAT III 1000V
Maximum voltage
between any terminal
1000V DC/AC RMS
and earth ground
Surge Protection Peak IEC 61010
Display 4000 counts LCD display, 21mm high
Polarity Automatic, (-) negative polarity indication.
Over-range "OL" mark indication
AC Response True RMS
Crest Factor ≤3 at full scale up to 500V, decreasing linearly to
≤1.5 at 1000V
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).
Function Range
4. SPECIFICATIONS