CIRCUTOR CIRWATT-B410T Series - Manual (Page 26)

THREE PHASE STANDARD CIRWATT B METER
CIRWATT B THREE PHASE INSTRUCTION MANUAL 26 / 53
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).