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3.1. CONDITIONS OF REFERENCE
In uencing quantity
Temperature
Relative humidity
Frequency of signal measured
Type of signal
Adjacent current‑carrying conductor
Conductor position in jaws
External electric eld
External DC magnetic eld (terrestrial magnetic eld)
External AC magnetic eld
Input impedance of measuring instrument
The intrinsic uncertainty is the error de ned in the conditions of reference.
Uncertainties are expressed as a percentage of the reading ( R) on the measuring instrument.
The uncertainties indicated are those of the clamps. To nd out the total uncertainty, you must
add on the uncertainty of the measuring instrument.
3. SPECIFICATIONS
17
Reference value
23 ± 3 °C
0 to 85
48 to 65 Hz
sinusoidal without DC component
none
centred
none
< 40 A/m
none
1 MW
RH
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