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Megohmmeter Models 6528/6529
6. ELECTRICAL SPECIFICATIONS
6.1 General Condition of Reference
Influencing Quantity
Conditions of Reference
Ambient temperature
73.4°F ± 5.4°F (23°C ± 3°C)
Relative humidity
[45%; 75%]
Electric field
≤ 0.1V/m AC
Power supply (batteries voltage)
8 to 9V
6.2 AC/DC Voltage Measurement
Range
Resolution
Uncertainty
±(% of rDigits)
V
AC+DC
700V
1V
±(1.2%+1ct)
V
DC
700V
1V
±(1%+1ct)
Input impedance:
25MΩ
Common mode rejection ratio:
> 60dB
Overload protection:
700VRMS or DC
Frequency:
30 to 440Hz
6.3 Ground Bond Continuity Measurement
Range
Resolution
Uncertainty
±(% of rDigits)
Continuity
40Ω
0.01Ω
±(1.2%+3cts)
Resistance of test leads:
≤ 0.01Ω (compensated)
Overload fuse protection by fuse: 700VRMS
Open circuit voltage:
>6V and <9V
Short circuit current:
0.02-2.00Ω: ≥ 200mA
2.01-39.99Ω: between 100-200mA
6.4 Ground Bond Resistance Measurement
Range
Resolution
Uncertainty
±(% of rDigits)
kΩ
400Ω
0.1Ω
±(1.2%+3cts)
4kΩ
1Ω
40kΩ
10Ω
400kΩ
100Ω
Resistance of test leads:
≤ 0.01Ω (compensated)
Overload fuse protection by fuse: 700VRMS
Open circuit voltage:
4.5V