CIRCUTOR CVM-C10 Series - Manual (Page 21)

3�4�10�- Measuring Single-Phase Networks, phase to neutral, with a 2-wire connection,
CVM-C10-ITF, CVM-C10-MC and CVM-C10-mV models�
Measurement system:
Power
Supply
V
L1
N
L1
N
POWER SUPPLY
INPUTS
A (+) B(-)
GND
RS485
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
300V ~
Ph-N Ph-Ph
520V ~
N V L3 L2 V L1 V
P1 P2 P1 P2
I1 I2
OUTPUTS
Rc R2 R1 Tc T2 T1
S0- S0+ S0+
V
L1
N
a b
A B
S1 S2
P1 P2
LOAD
Figure 12: Measuring Single-Phase Networks, phase to neutral, with a 2-wire connection, CVM-C10-ITF, CVM-C10-MC
and CVM-C10-mV models�
CVM-C10-ITF model:
The transformer secondary value must be 5A or 1A
CVM-C10-MC model:
The MC transformer secondary value is set to 0.250 A (fixed value)
CVM-C10-mV model:
The transformer secondary value must be 0.333 V
21 Instruction Manual
CVM-C10