AEMC 6471 - DC Resistance Measurements

18 Ground Resistance Tester Model 6471
With Current Probe MN82
Measurement Range
0.00 to
9.99mA
10.0 to
99.9mA
100 to
999mA
1.00 to
9.99A
10 to
40A
(1)
Resolution 0.01mA 0.1mA 1mA 0.01A 0.1A
Frequency range 16 to 49Hz
(1)
50 to 99Hz
(1)
100 to 400Hz
Operating error from
0.5 to 100mA
± (15% + 2cts) ± (7% + 2cts) ± (5% + 2cts)
Operating error from
0.1 to 40.0A
> 20% ± (15% + 2cts) ± (7% + 2cts)
(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:16VDC (if resistance < 22Ω the output voltage is reduced
to 10VDC)
Maxoutputcurrent:> 200mADC for resistances < 20Ω
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
0.12 to
9.99Ω
10.0 to
99.9Ω
100 to
999Ω
1.00 to
9.99kΩ
10.0 to
99.9kΩ
Resolution 0.01Ω 0.1Ω 1Ω 10Ω 100Ω
Intrinsic error ± (2% + 2cts)
Operating error ± (5% + 3cts)
www.ShopAEMC.com
Shop for AEMC products online at:
1.888.610.7664