Major tech MT1877IV Руководство по эксплуатации - Страница 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