7.1. REFERENCE CONDITIONS
Infl uence quantities
Temperature
Relative humidity
Supply voltage
Frequency range
Capacitance in parallel on resistance
Electric fi eld
Magnetic fi eld
7.2. CHARACTERISTICS PER FUNCTION
7.2.1. VOLTAGE
Characteristics
Measurement range
Frequency range
(4)
Resolution
Accuracy
Input impedance
(4): Above 500 Hz, the small display indicates "- - - -" and the main display gives only a rough indication of the peak
value of the measured voltage.
Measurement category: 1000 V CAT III or 2500 V CAT I (transients 2.5 kV)
7.2.2. INSULATION RESISTANCE
Method: Voltage-current measurement per IEC 61557-2
Nominal output voltage: 500, 1000, 2500, 5000 Vdc (or adjustable from 40 V to 5100 V)
Adjustment step in variable mode: 10 V from 40 V to 1000 V
Off-load voltage: 1.02 x Un ± 2% (Un ± 2% in variable mode)
Nominal current: 1 mAdc
Short-circuit current: < 1.6 mA ±5%
Charging current into capacitive component: 3 mAdc approximately when starting measurement
Maximum acceptable voltage during measurement: Upeak = (1.1 + dISt) Un + 60V
7. SPECIFICATIONS
Reference values
23 ± 3 °C
45 to 55 % RH
9 to 12 V
DC and 15.3 to 65 Hz
< 40 A/m
1.0...99.9 V
100...999 V
DC and 15 ... 500 Hz
0.1 V
1 V
1% +5 pt
750 k to 3 M depending on measured voltage
100 V from 1000V to 5100 V
71
0 µF
nil
1000...2500 V
2 V
1% +1pt
with dISt = 0.03 – 0.10 or 0.20
2501...4000 V
DC
2 V