User manual

12 GMC-I Messtechnik GmbH
7 Technical Data
*With automatic polarity reversal
Intrinsic Error and Measuring Error
Influencing Quantities and Influence Error
Measured Quantity Measuring Range Reso-
lution
U
no-load
R
i
I
K
I
N
Protective conductor resistance 0 … 1.30 Ω
1.0 … 99.9 Ω
10 mΩ
100 m Ω
< 5 V −
< 5 V −
> 200 mA *
Insulation resistance 0 … 9.99 MΩ 10 kΩ 520 V − approx.
50 kΩ
< 3.5 mA > 1 mA
Contact current measurement
(verification of absence of voltage)
0 … 9.99 mA ∼ 10 μA1 kΩ
Differential current
MINITEST Master / Pro / Base
0.1 . . . 9.99 mA~ 10 μA
Differential current
MINITEST 3P Master
0.2 . . . 9.99 mA~ 10 μA
Measured Quantity Intrinsic Uncertainty Measuring Uncertainty
Protective conductor resistance ± (5% rdg. + 4 d) ± (10% rdg. + 6 d)
Insulation resistance ± (7% rdg. + 2 d) ± (10% rdg. + 5 d)
Contact current measurement
(verification of absence of voltage)
± (5% rdg. + 4 d) ± (10% rdg. + 5 d)
Differential current
MINITEST Master / Pro / Base
± (5% rdg. + 6 d) ± (10% rdg. + 6 d)
Differential current
MINITEST 3P Master
± (5% rdg. + 10 d) ± (10 % rdg. + 10 d)
Influencing Quantity /
Sphere of Influence
Designation per
DIN VDE 0404
Influence Error
± … % of Measured Value
Change of position E1 —
Change to test equipment supply
voltage
E2 2.5
Temperature fluctuation
E3
Specified influence error valid starting with
temperature changes as of 10 K:
0 … 21° C and 25 … 40° C
1 for protective conductor resistance
0.5 for all other measuring ranges
Amount of current at DUT E4 2.5
Low frequency magnetic fields E5 2.5
DUT impedance E6 2.5
Capacitance during insulation
measurement
E7
2.5
Waveshape of measured current
E8
49 … 51 Hz 2 with capacitive load
(for equivalent leakage current)
45 … 60 Hz 1 (for contact current)
2.5 for all other measuring ranges