K4105A
side 28
Specifications
Measuring Range and Accuracy (at 23±5°C and RH 75% or less)
Range
Measuring Range
Accuracy
Earth Voltage
0 – 199.9V
±1.0% rdg ±4 dgt
Earth Resistance 20Ω
0 – 19.99Ω
±2.0% rdg ± 0.1Ω( 0 –
19.99Ω )
±2.0% rdg ± 3 dgt( above
20Ω )
(Auxiliary earth resistance
100Ω ± 5%)
(Earth voltage 3V or less)
200Ω
0 – 199.9Ω
2000Ω
0 – 1999Ω
Electromagnetic compatibility(Radiated RF immunity & IEC61000-4-3)
RF field strength = < = 1V/m, total accuracy : specified accuracy
RF field strength = 3V/m, total accuracy : specified ac
5
% of
range
Applicable Standards:
IEC 61010-1 Overvoltage CAT III 300V Pollution Degree 2
IEC 61010-2-31
IEC 61557-1,5
IEC 60529 (IP54)
Measuring Method
Earth voltage measurement
Average sensing
Earth resistance measurement
Constant current inverter
Frequency : Approx. 820Hz
Measuring current : 20
Ω range Approx. AC 3mA
Maximum Operating Error
Operating error (B) is an error obtained within the rated operating conditions, and
calculated with the intrinsic error (A), which is an error of the instrument used, and
the error (Ei) due to variations.
