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10
Wibeee Max
Instruction Manual
3.3.- SENSORS FOR CURRENT MEASUREMENT
3�3�1�- Wibeee Max
In the
Wibeee Max
model, current measurement is performed using the
FLEX Wibeee 25
flex
-
ible sensors.
Table 3:Metrological characteristics�
FLEX Wibeee 25
Measurement scales
350
700
Nominal range
350 A
700 A
Output / input ratio
2.86 mV/A
1.43 mV/A
Range of use
3.5 ... 350 A
7 ... 700 A
Specified measurement range
35 ... 350
70 ... 700
Typical phase difference
1st
1st
The measurement uncertainty is for the sensor in its optimal position, with no external electric
or magnetic fields and within the working temperature range,
Table 4:Position error
Position
Error
A
B
A
± 1%
B
A ± 3%
Table 5: Variations in range of use�
Variations in range of use
Magnitude of Influence
Range of influence
Typical
Maximum
Temperature
- 10ºC ... +60ºC
-
±0.3 % / ºC
Relative humidity
10% ... 90%
-
0.3 %
Conductor position
-
2 %
3 %
Adjacent conductor
D/4 300 A
-
2 %
Set to 50 Hz
Full scale
0.2 %
0.3 %
Set to 60 Hz
Full scale
0.2 %
0.3 %
Frequency
40 Hz - 5 kHz
< ± 1 dB
< ± 1 dB
Deviation 50 Hz - 60 Hz
-
-
0.3 %
Note :
Circutor
also has the model of flexible sensors,
FLEX Wibeee 14
, with the same metro-
logical characteristics of the
FLEX Wibeee 25
model, but with a length of 14 cm.
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