Benning PV 1-1+ - Measuring ranges; Measuring accuracy; Resistance ranges

4.3 Measuring ranges
Device description
5290 / 06/2023 enBENNING PV 1-1+22
4.3 Measuring ranges
Measuring accuracy
The measuring accuracy is specified as the sum of the following:
• Relative part of the measured value
• Number of digits (counting steps of the last digit)
The specified measuring accuracy applies at a temperature of 24°C ±6°C and a relative air
humidity lower than 80%.
4.3.1 Resistance ranges
Protective conductor resistanceR
PE
Measuring range Resolution Measuring accuracy
0.05…199Ω Max. 0.01Ω ±(2%+ 2digits)
Table7: Measuring range for measuring the protective conductor resistanceR
PE
• Testing current: >200mA (2Ω)
• Open-circuit voltage: >4V
• Number of periodic inspections (IEC61557‑2): approx.4 000
Insulating resistanceR
ISO
Measuring range Resolution Measuring accuracy
0.2...100MΩ Max. 0.01MΩ ±(5%+ 5digits)
101...199MΩ 1MΩ ±(10%+ 5digits)
Table8: Measuring range for measuring the insulating resistanceR
ISO
• Testing voltage: 250, 500 or 1 000V‑DC (positive deviation up to 20%)
• Testing current: >1mA, <2mA in case of a short-circuit
• Number of periodic inspections (IEC61557‑2): approx.2 000
V
ISO
Limit of the insulating resistance
250V 0.5MΩ
500V 1.0MΩ
1 000V 1.0MΩ
Table9: Preset limits of the insulating resistance