Chauvin Arnoux B102 Bedienungsanleitung Seite 22

„ For use indoors.
„ Pollution level 2 to IEC 61010.
„ Operating altitude: ≤ 2000 m on uninsulated conductors.
„ Transport altitude: ≤ 12000 m.
4.3.4. ERRORS CAUSED BY EXTERNAL INFLUENCES
„ Ambient temperature:
„ Position of the gripped conductor:
(max with not centred conductor)
„ Residual differential:
(max with not centred conductor)
„ External fields, 1 V/A (1):
„ External fields, 1 mV/mA (1):
„ Coupled DC current, 1 V/A (2):
„ Coupled DC current, 1 mV/mA (2):
„ Frequency, 1 V/A (3):
„ Frequency 1 mV/mA (3):
(1) : 400 A/:m 50 Hz field perpendicular to the clamp opening.
(2) : DC current coupled onto an AC current.
(3) : Limited to 1 kHz for 100 A.
Influence of the input impedance (Z e ) of the measuring instrument
Quantity of influence
Influence of instrument Z e
(impedance Z e in kΩ)
< 0.1 % per 10 K.
0.1 % typic of Vs (non differential current); 0.2 % max.
0.1 % typic of IP (differential current); 0.2 % max.
< 60 mV of Vs.
< 100 µV of Vs.
< 1 mV for continuous 1 A.
< 0.1 mV for continuous 1 A.
< 1.5 % from 30 Hz to 1 kHz.
< 0.5 % from 30 Hz to 1 kHz.
Range Max. influence on the measurement
1 V/A
1 mV/A
22
E% = [Ze/(Ze + 4.8)-1] x 100
E% = [Ze/(Ze + 0.0048) -1] x 100