8
CIRWATT B 101-102
Instruction Manual
2�1 - METER VERSIONS
The following table shows all the possible options that are available for the
CIRWATT B 101-102
. This
table is generic, meaning that some versions listed in it may not currently be available
Table 3: Meter versions�
TYPE OF METER
CIRWATT B 101
CIRWATT B 102
2 asymmetrical connection wires
2
Type of connection
2 symmetrical connection wires
S
Class (B) 1.0 Active / Does not measure Reactive
10
Accuracy
Class (A) 2.0 Active / Does not measure Reactive
20
Class B Active / Class 2.0 Reactive
12
1 x 230 V
E
Measurement voltage
1 x 127 V
B
Shunt 10(60) A
S4
Current measurement
Shunt 5(65) A
S7
Shunt 5(60) A
S2
50 Hz
A
Frequency
60 Hz
B
Without communications
0
Communications
R1 / R2 (RS-485)
2
Without inputs/outputs
0
Expansion
Optocoupler output
1
3 A 250 V Relay Output
3
Potential free input
A
Residential model
B
Model
2 Quadrants
0
Number of quadrants
4 Quadrants
1
Always positive
2
No added features
0
Extra features
Example:
The
210ES7A20B10
code would be used for a Standard Type B energy meter, Class B (Class 1)
for active energy and Class 2 for reactive energy; with asymmetrical connection, at 50 Hz; with 1x230
power supply/measurement voltages and 5(65) A current measurement; with RS-485 communications
and 4-quadrant measurement
2�2 - METROLOGY
The metrological features for the
CIRWATT B 101-102
are:
• Voltage measurement: 1 x 127 V or 1 x 230 V.
• Range of currents:
Table 4: Range of currents�
Range of currents
Active Class 1
I
tr
0.5 A
I
st
10 mA
I
min
250 mA
I
n
/ I
ref
5 A
I
max
65 A