CIRCUTOR CIRWATT-B410T Series - Manual (Page 14)

THREE PHASE STANDARD CIRWATT B METER
CIRWATT B THREE PHASE INSTRUCTION MANUAL 14 / 53
1.8.- Verification impulses
The device features two verification LEDs: one for verifying the active energy, and another for
the reactive energy.
The weight of the LEDs depends on the version of the meter, being 20,000 imp/kWh (kVArh)
for the indirect and semi-indirect meter, and 4,000 imp/kWh (kVArh) for the direct connection
meter.
The LEDs remain lit when the current is below the meter's start-up current. Once the start-up
current has been passed (because of the existence of either active or reactive power
consumption), the LEDs turn off and emit pulses in proportion to the energy being measured,
in accordance with the cadence indicated on the characteristics label.
Both LEDs have metal loops and a profile which allows them to be attached and to help
position the verification port.
1.9.- Button
The device uses two buttons, employing a system of either short or long button presses. A
short press is understood to be one that lasts less than 2 seconds, and a long press one that
lasts more than 2 seconds. The effect of pressing each button depends on the version of the
meter. One of the buttons is sealed in order to prevent the meter being tampered with by
unauthorised personnel.
1.10.- Nameplate
The characteristics plate is situated on the front part of the meter, and includes all the
information established in IEC 62052-11:
Manufacturer name and place of manufacture.
Designation of the type and indications relating to its approval.
The number of phases and the number of conductors in the circuit to which it can be
connected (e.g. three-phase 4 wire).
Serial number of the meter (9 numerical characters); this is a number which uniquely
identifies each meter.
Year of manufacture; the year in which the meter was built.
Reference voltage, according to the assigned network voltage or the secondary voltage
of the measuring transformer to which the meter is to be connected.
Reference current and maximum current; for example, 10 (100) A would indicate a
meter with a base current of 10 A and a maximum current of 100 A.
Reference frequency, in Hz.