Amprobe DGC-1000A Ground-Resistance-Tester - Manual (Page 17)

14
VII. ELECTRICAL SPECIFICATIONS
Ground Resistance (Auto range) :
Range Resolution Accuracy of Reading 1
0.025 - 0.250

0.002

± 1.5% ± 0.05

0.250 - 1.000

0.02

± 1.5% ± 0.05

1.001 - 9.999

0.02

± 1.5% ± 0.1

10.00 - 50.00

0.04

± 2.0% ± 0.3

10.01 - 99.99

0.04

± 2.0% ± 0.5

100.0 - 200.0

0.4

± 3.0% ± 1.0

200.1 - 400.0

2

± 5.0% ± 5

400.0 - 600.0

5

± 10% ± 10

600.1 - 1500

20
 ± 20%
1 Loop resistance noninductive, external field < 50 A/m, external electrical
field < 1 V/m, conductor centered.
2 Resistance Measurement Frequency: 3.333KHz
High and Low Alarm
Range Resolution
High Alarm 0 - 1510

1

Lo Alarm 0 - 1510

1

Ground/Leakage Current
(Auto range, 50/60 Hz, True RMS, Crest Factor < 3.0)
Range Resolution Accuracy of Reading
0.200 - 1.000 mA 0.001 mA ± 2.0% ± 0.05 mA
1.00 - 10.00 mA 0.01 mA ± 2.0% ± 0.03 mA
10.0 - 100.0 mA 0.1 mA ± 2.0% ± 0.3 mA
100 - 1000 mA 1 mA ± 2.0% ± 3 mA
(Auto range, 50/60 Hz, True RMS, Crest Factor < 3.0)
Range Resolution Accuracy of Reading
0.200
– 4.000 A
0.001 A ± 2.0% ± 0.03 A
4.00
– 30.00 A
0.01 A ± 3.0% ± 0.03 A
Accuracy of Resistance Calibration Plate: ±0.5%
Data Logging Capacity
：
116 records
Data Logging Interval: 1 to 255 seconds