29
3. CHARACTERISTICS
3.1. REFERENCE CONDITIONS
Quantity of influence
Reference values
Temperature
23 ±5°C
Relative humidity
20 to 75%RH
Position of the conductor
centred on the marks on the clamp
Frequency of the measured signal
DC to 65Hz sine wave
External electric field
zero
External DC magnetic field (earth's field)
< 40A/m
External AC magnetic field
zero
Impedance of the measuring instrument
≥ 1MΩ
and ≤100pF
The intrinsic uncertainty
is the error defined under the reference conditions
.
It is expressed as a percentage of the output signal (R) plus an offset in mV:
± (a% R + b)
3.2. ELECTRICAL CHARACTERISTICS, SENSITIVITY 1MV/A
Output impedance: 215
W
Specified
measurement
range
0,5 to 100A
ac/dc
100 to 400A
ac/dc
400 to 500A
dc
500 to 600A
dc
Intrinsic uncertainty
≤±(1.5%R + 1mV)
≤±2%R
≤±3%R
≤±4%R
Phase error (45 to 65Hz)
Specified measurement range
3 to 300Aac
300 to 400Aac
Phase shift
≤‑ 2.2°
≤‑ 1.5°