3.1. REFERENCE CONDITIONS
Quantity of influence
Temperature
Relative humidity
Frequency of the signal measured
Type of signal
Instrument turn-on time
External electric field
External DC magnetic field (earth's field)
External AC magnetic field
Position of the conductor in the coil
Shape of the measurement coil
Input impedance of the display device connected
to the electronic unit
3.2. ELECTRICAL CHARACTERISTICS
Model
Range
Specified measurement range
Output/input ratio (mV~/A~)
Maximum peak factor
Intrinsic uncertainty
(% of output signal)
Max. offset voltage
Phase shift at 50 Hz
Max. output voltage
3. CHARACTERISTICS
Single-phase
17, 25 and 35 cm
▪ 30 A
3 A
▪ 300 A
▪ 3 000 A
▪ 2 ... 30 A
0,5 ... 3 A
▪ 5 ... 300 A
▪ 50 ... 3 000 A
▪ 100
1000
▪ 10
▪ 1
▪ ≤1% + 4 mV
▪ ≤1.5% + 0.4 mV (I<10% I
≤1%
≤1% + 0.4 mV (I≥10% I
+ 40 mV
▪ ≤1.5%+ 0.04 mV (I<10% I
≤1% + 0.04 mV (I≥10% I
34
Reference values
23 ± 5 °C
20 to 75 % RH
30 to 440 Hz
sinusoidal
1 minute
< 40 A/m
centred
circular, no applied stress
≥ 1 MW
1.5 at I
(I nominal)
N
)
N
)
N
)
N
)
N
0 mV
dc
≤1° (0.5° typical)
‑ 4.5 Vpeak ≤ V ≤ + 4.5 Vpeak
null
null
Three-phase
25 cm
▪ 30 A
▪ 300 A
▪ 3 000 A
▪ 5 ... 30 A
▪ 5 ... 300 A
▪ 50 ... 3 000 A
▪ 100
▪ 10
▪ 1
▪ ≤1% + 4 mV
▪ ≤1.5% + 0.4 mV (I<10% I
≤1% + 0.4 mV (I≥10% I
▪ ≤1.5%+ 0.04 mV (I<10% I
≤1% + 0.04 mV (I≥10% I
)
N
)
N
)
N
)
N