Sonel MPI-540 - Accessories; 11 Accessories; Standard accessories

MPI-540 – USER MANUAL
185
10.4 Additional data
Data on additional uncertainties are useful mainly when the meter is used in
non-standard conditions and for metrological laboratories for the purpose of calibration.
10.4.1 Additional uncertainties according to IEC 61557-2 (R
ISO
)
Significant parameter
Designation
Additional uncertainty
Position
E
1
0%
Supply voltage
E
2
0%
Temperature 0°C...35°C
E
3
2%
10.4.2 Additional uncertainties according to IEC 61557-3 (Z)
Significant parameter
Designation
Additional uncertainty
Position
E
1
0%
Supply voltage
E
2
0%
Temperature 0°C...35°C
E
3
1.2 m lead – 0 Ω
5 m lead – 0.011 Ω
10 m lead – 0.019 Ω
20 m lead – 0.035 Ω
WS-03 and WS-04 lead – 0.15 Ω
Phase angle 0°...30°
E
6.2
0.6%
Frequency 99%..101% f
n
E
7
0%
Mains voltage 85%..110% U
n
E
8
0%
Harmonic
E
9
0%
DC component
E
10
0%
10.4.3 Additional uncertainties according to IEC 61557-4 (R ±200 mA)
Significant parameter
Designation
Additional uncertainty
Position
E
1
0%
Supply voltage
E
2
0.5%
Temperature 0 °C...35 °C
E
3
1.5%
10.4.4 Additional uncertainties of earth resistance measurement (R
E
)
Additional uncertainties according to IEC 61557-5
Significant parameter
Designation
Additional uncertainty
Position
E
1
0%
Supply voltage
E
2
0%
Temperature 0 °C...35 °C
E
3
0% for 50 V
± 2 digits for 25 V
Serial interference voltage
E
4
±(6.5% + 5 digits)
Resistance of electrodes
E
5
2.5%
Frequency 99%...101% f
n
E
7
0%
Mains voltage 85%...110% U
n
E
8
0%