13
Instruction Manual
CIRWATT B 101-102
Minimum current.
Additional metrology marking (will be indicated only for MID models).
CE marking.
Firmware version.
2�10 - ENCLOSURE
The dimensions of the enclosure of the
CIRWATT
, as well as its anchor points, are in accordance with
the DIN 43859 and DIN 43857 standards.
2�11 - CONNECTIONS
Laser marking on the meter enclosure. Contains a figure showing the electrical connections. When
necessary, a brief installation manual is also included to facilitate the start-up process.
2�12 - AUXILIARY CONTACTS (DEPENDING ON VERSION)
The energy meter can be optionally supplied with two auxiliary contacts.
2�12�1 - IMPULSE OUTPUT S0 (OPTIONAL)
The energy meter has an impulse output, with a 1000 imp/kWh rate that supports inputs of up to 24
V / 50 mA
2�12�2 - OUTPUT RELAY (OPTIONAL)
The device has a normally-open relay type output. It can govern loads of up to 230 V / 3 A when it has
been activated (closed).
2�12�3 - POTENTIAL FREE INPUT (OPTIONAL)
The unit has an input that is activated with voltages that range between 100 and 240 V. It can be used
to show the change of tariff.
2�12�4 - RS-485 PORT
This communications port (only available on model
CIRWATT B 102
) can be used to integrate the
energy meter into a standard RS-485 network to link more devices to the same data bus.
The + and - terminals of the bus must be connected to each device connected to the same RS-485 bus,
in order to guarantee that communications are established correctly.
Terminal 21 (A)
→
(+)
Terminal 22 (B)
→
(-)
