382357 Datasheet, PDF (5/12 Pages) Extech Instruments Corporation. – Ground Resistance Clamp-On Tester

Ground Resistance (Autorange) Specifications
Range
Resolution
Accuracy (of reading)
0.025 to 0.250Ω
0.002Ω
± (1.5% + 0.05Ω)
0.250 to 1.000Ω
0.02Ω
± (1.5% + 0.05Ω)
1.001 to 9.999Ω
0.02Ω
± (1.5% + 0.1Ω)
10.00 to 50.00Ω
0.04Ω
± (2.0% + 0.3Ω)
50.01 to 99.99Ω
0.04Ω
± (2.0% + 0.5Ω)
100.0 to 200.0Ω
0.4Ω
± (3.0% + 1.0Ω)
200.1 to 400.0Ω
2Ω
± (5.0% + 5Ω)
400.0 to 600.0Ω
5Ω
± (10% + 10Ω)
600.1 to 1500Ω
20Ω
± 20%
Accuracy Note: Loop resistance non-inductive, external field < 50A/m, external electrical field <1 V/m,
conductor centered
Ground / Leakage Current Specifications
Range
Accuracy (% of reading)
0.200 to 1.000mA
± (2.0% ± 0.05mA)
1.00 to 10.00mA
± (2.0% ± 0.03mA)
10.0 to 100.0mA
± (2.0% ± 0.3mA)
100 to 1000mA
± (2.0% ± 0.3mA)
0.20 to 4.00A
± (2.0% ± 0.03A)
4.00 to 30.00A
± (3.0% ± 0.03A)
Notes: Auto-range, 50/60Hz bandwidth, True RMS sensing, Crest Factor < 3.0
High and Low Alarm
High Alarm
Low Alarm
Range
0-1500Ω
0-1500Ω
Resolution
1Ω
1Ω
5
382357 V1.1 03/09