Dc Resistance Measurements - AEMC 6471 User Manual

Digital ground resistance and soil resistivity tester
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With Current Probe MN82
Measurement Range
Resolution
Frequency range
Operating error from
0.5 to 100mA
Operating error from
0.1 to 40.0A
(1): The Model 6471 cannot detect whether a current clamp SR182 or MN82 is connected. In the case
of the MN82 clamp, with currents > 10A and frequencies < 100Hz the instrument will not display
any warning messages. It is the operator's responsibility to observe the limits of use when using the
MN82 clamp.
3.2.4

DC Resistance Measurements

Measuring method: Voltage/Current measurement (Standard EN 61557 part 4)
Nominal output voltage: 16V
to 10V
)
DC
Max output current: > 200mA
Max overload (permanent): 50Vrms (protection up to 250V is guaranteed)
Max inductive load: 2 H
Max interfering voltage: 60Vpeak > 10Hz
Time for auto range selecting: approx 5 s
Measuring time: 8 s with automatic polarity inversion
Measuring rate: 3 per s in manual mode
Lead compensation: Possible from 0 to 5Ω
Alarm setting: ">" or "<" from 1 to 999Ω (max 3 digits)
2-Pole mΩ measurement
Measurement
Range
Resolution
Intrinsic error
Operating error
18
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0.00 to
10.0 to
9.99mA
99.9mA
0.01mA
0.1mA
16 to 49Hz
(1)
± (15% + 2cts)
> 20%
(if resistance < 22Ω the output voltage is reduced
DC
for resistances < 20Ω
DC
0.12 to
10.0 to
9.99Ω
99.9Ω
0.01Ω
0.1Ω
ShopAEMC
www.
100 to
1.00 to
999mA
9.99A
1mA
0.01A
50 to 99Hz
(1)
± (7% + 2cts)
± (15% + 2cts)
100 to
1.00 to
999Ω
9.99kΩ
10Ω
± (2% + 2cts)
± (5% + 3cts)
Ground Resistance Tester Model 6471
.com
10 to
40A
(1)
0.1A
100 to 400Hz
± (5% + 2cts)
± (7% + 2cts)
10.0 to
99.9kΩ
100Ω
1.888.610.7664

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