EXTECH 382357 Clamp on Ground Resistance Tester[30 Jan. 2012, 22:50:58]
Keterangan
The Extech 382357 clamp-on ground resistance tester allows the user to measure ground resistance without the use of auxiliary ground rods. The Extech 382357 clamp-on ground resistance tester measures resistance from 0.03© to 1500© and True RMS AC Leakage current from 0.2mA to 30.00A. The Extech 382357 clamp-on ground resistance tester features programmable datalogging with 116 points, programmable hi/ lo alarms, 0.9 " jaw size, self-calibration when powered on, and verification resistors to confirm the accuracy of the meter.
The Extech 382357 clamp-on ground resistance tester ships complete with 9V battery, resistance check plate, and durable metal storage case.
Applications for the Extech 382357 Clamp-On Ground Resistance Tester
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
Features:
Ground resistance measurements down to 0.03© with 0.002© maximum resolution
True RMS AC leakage current range of 0.2mA to 30A with 1.000mA max resolution
Programmable datalogging with 116 data points
Programmable Hi/ Lo alarm
0.9 " jaw size for large ground rods
Automatic self calibration when powered on
9999 count high contrast LCD display
Included resistance checkplate confirms meter accuracy
Electrical noise detection feature prevents inaccurate readings
Data hold and continuity beeper
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