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7.1 REFERENCE CONDITIONS
7.2 VOLTAGE
Measurement
Range
Frequency
Range*
Resolution
Accuracy
Input Impedance
*Over 500Hz, the small display indicates "- - - -" and the main display gives only an
assessment of the peak value of the measured voltage.
Measurement Category: 1000V CAT III (transients ≤2.5kV).
7.3 INSULATION RESISTANCE
Method: Voltage-current method according to EN 61557-2 (ed. 02/97).
Nominal Output Voltage:
500, 1000, 2500, 5000VDC (or adjustable from 40 to 5100V).
Adjustments Available in Variable Mode:
10V from 40 to 1000V.
100V from 1000 to 5100V.
Open-circuit Voltage: ≤1.02 x Vn ± 2% (Vn ± 2% in variable mode).
Max. Overload of Voltage Vn:
Vpeak = (1.1 + dISt) Vn + 60V.
with dISt = 0.03 - 0.10 or 0.20.
Nominal Current: >1mADC.
Short-circuit Current: <1.6mA ± 5%.
Load Current: 3mADC approx when starting measurement.
38
7. SPECIFICATIONS
Influence Quantity
Temperature
Relative Humidity
Supply Voltage
Frequency Range
Capacitance in parallel
with the input resistance
Electric Field
Magnetic Field
1.0 to 99.9V
DC and 15Hz to 500Hz
0.1V
1% of
Reading
± 5cts
750kΩ at 3MΩ depending on measure voltage
Reference Values
23°C ±3°K
DC and 15.3 to 65Hz
100 to 999V 1000 to 2500V 2500 to 4000V
1V
1% of Reading ± 3cts
Megohmmeter Models 5050 & 5060
45 to 55%
9 to 12V
0µF
nil
<40A/m
2V
DC
2V
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