Installation Guide

2. Features
The 61-920 is a digital clamp-on ground resistance tester. The instrument can measure the ground resist-
ance by simply clamping around the ground conductor, ground rod or equipment ground conductor.
The 61-920 also measures leakage AC current up to 30AAC.
• Wide measuring range (Auto-ranging)
Ground resistance Max. 1200Ω Min. resolution 0.01Ω
AC current Max. 30A Min. resolution 0.1mA
• Noise check function senses current on the ground electrode or ground wire and displays NOISE on
the LCD display.
• True RMS feature accurately measures AC current even with distorted waveforms due to harmonics.
• Auto power-off feature powers the meter down automatically after 10 minutes of non-use to conserve
battery power.
• Data hold feature is used to capture and hold a reading in the LCD display.
• Continuity buzzer function provides an audible warning to the user when the measurement result is
10Ω or less.
• Backlight feature illuminates the display for working in dimly lit areas.
• Memory save feature records and displays the measurement result.
• Complies with IEC61010-1: 2001 (CAT.IV 300V Pollution degree 2), IEC61010-2-032: 2002 safety
standards.
• This instrument is protected by double or reinforced insulation .
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