Circutor CIRWATT-B410T Series Instrukcja Użytkownika Pobierz pdf (Strona 26)

THREE PHASE STANDARD CIRWATT B METER

CIRWATT B THREE PHASE INSTRUCTION MANUAL

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Tampering detector

Activation

Manipulation of the meter or connections

Delay

Activation is delayed by 72 hours to allow for installation

Insulation

Alternating voltage

4 kV RMS 50 Hz for 1 minute

Over-impulse

1.2/50 ms 0W source impedance

6 kV at 60 ºC and 240 ºC with positive and negative polarity

Tests/Standards:

EN 50470-1 and EN 50470-3

IEC 62052-11, IEC 62053-21

Standards for static, active-energy meters for alternating current,

Class B.

Standards for static, active-energy meters for alternating current,

Class 1.

EN 55022

Driven emissions: Class B

Radiated emissions: Class B

EN 61000-4-11

Gaps or brief voltage interruptions

EN 61000-4-2

Electrostatic discharges

EN 61000-4-3

Radio-frequency electromagnetic fields

EN 61000-4-4

Electrical transient bursts

EN 61000-4-5

Shockwaves

EN 61000-4-6

Alterations driven and induced by radio-frequency fields

EN 61000-4-8

Magnetic fields in the grid frequency with an external origin

1.31.- Safety

1.31.1.- Tampering detector

The equipment will generate an event and activate the alarm whenever its cover is lifted. The

alarm can only be deactivated using communications protocols. The minimum time between

two tampering events is 60 seconds.

During the initial startup, the meter will wait 72 hours before generating the first tampering

event in order to avoid its activation whilst the authorized installer is fitting the equipment.

1.31.2.- Protection of the information stored in memory

All access to the meter memory via remote connections is protected by read and write keys.

These keys have more than 4 billion different combinations, granting the meter very strong

protection against attempts to alter the registered information (energy curves, events, billing,

setup).

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