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Extech 382357 Clamp-On Ground Resistance Tester
382357 Clamp-On Ground Resistance Tester
 
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Availability:: Usually Ships in 24 to 48 Hours
Product Code: EXT-382357


NIST Certificate (Adds 10-12 weeks):

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Description
 

Features

  • Ground resistance measurements down to 0.025ohms with 0.002ohms maximum resolution
  • True RMS AC Leakage current range of 0.2mA to 30A with 1.000mA maximum resolution
  • Programmable Datalogging with 116 data points
  • Programmable Hi/Lo Alarm
  • 0.9" Jaw Size for Large Ground Rods
  • Simplifies ground resistance measurements on multiple point ground systems
  • Verification resistors confirm accuracy of meter
  • Automatic Self Calibration when powered on
  • 9999 Count High Contrast LCD Display
  • Electrical Noise Detection feature prevents inaccurate readings
  • Data Hold and Continuity Beeper
  • Complete with 9V battery, Resistance check plate and carrying case

Specifications / Range / Resolution / Accuracy (%rdg)

  • Ground Resistance:
    • 0.025 to 0.25ohms / 0.002ohms / +/-(1.5%+0.05ohm)
    • 0.250 to 1.000ohm / 0.02ohm / +/-(1.5%+0.5ohm)
    • 1.001 to 9.999ohm / 0.02ohm / +/-(1.5+0.1ohm)
    • 10.00 to 50.00 ohm / 0.04ohm / +/-(1.5%+0.1ohm)
    • 50.01 to 99.99ohm / 0.04ohm / +/-(1.5%+0.5ohm)
    • 100.0 to 200.0ohm / 0.4ohm / +/-(1.50.5ohm)
    • 200.1 to 400.0ohm / 2ohm / +/-(5.0%+5ohm)
    • 400.0 to 600.0 ohm / 5 ohm / +/-(10%+10ohm)
    • 600.1 t o1500ohm / 20ohm / +/-20%
  • AC Leakage Current (Trms):
    • 0.200 to 1.00mA / 0.001mA / +/-(2.0%+/-0.05mA)
    • 1.00 to 10.00mA / 0.01mA / +/-(2.0%+/-0.03mA)
    • 10.0 to 100.0mA / 0.1mA / +/-(2.0%+/-.03mA)
    • 100 to 1000mA / 0.1mA / +/-(2.0%+/-0.3mA)
    • 0.20 to 4.00A / 0.01A / +/-(2.0%+/-0.03A)
    • 4.00 to 30.00A / 0.01A / +/-(3%+/-0.03A)
  • Resistance Test Frequency : 1.667kHz
  • Continuity : Beep if less than 40 (approximately)
  • Dimensions : 10.2x4.4x1.9" (258x110x47mm)
  • Weight: 24.7oz (700g)

Applications

  • Verify resistance of cellular and communication tower ground grids
  • Check utility transmission systems and grounding rods
  • Maintenance on electric transportation systems
  • Ideal for grounding systems in sub-stations, factories and office buildings.

Ordering Information

  • 382357 : Clamp-On Ground Resistance Tester
  • 382357-NIST : Clamp-On Ground Resistance Tester w/NIST Certificate


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