Ground Resistance Clamp Meter – Electrical Testing and Measurement

The IDEAL Industries Ground Resistance Clamp Meter model 920 is a digital clamp-on instrument designed for measuring ground resistance and leakage AC current in electrical systems. It is suitable for electrical distributors, lighting solutions providers, and switchgear suppliers requiring accurate ground resistance testing without disconnecting the ground electrode. The clamp-on technique enables quick and safe measurements on ground conductors, ground rods, or equipment grounds, making it ideal for maintenance and troubleshooting in electrical installations.

Specifications

• Model: 920
• Ground Resistance Range: 0.1 to 1200 Ω
• Accuracy: 1.5% Resistance, 2% Leakage Current
• Earth Voltage Rating: 300 V (CAT IV)
• Display: Digital LCD with backlight
• Dimensions: 9.7" (L) x 4.7" (W) x 2.1" (D)
• Conductor Size Capacity: Up to 1.25" diameter
• Weight: Approximately 1.7 lbs (including batteries)
• Power Source: 4 AA batteries
• Measuring Range (AC Current): 0 to 30 A (True RMS)
• Operating Temperature Range: 14°F to 104°F
• Safety Standards: IEC61010-1: 2001 (CAT IV 300V Pollution degree 2), IEC61010-2-032: 2002

Features

• Clamp-on technique for ground resistance measurement without disconnecting the ground system
• Auto-ranging for ground resistance and AC current measurements
• True RMS measurement for accurate AC current readings even with distorted waveforms
• Noise check function to detect interference affecting measurement accuracy
• Data hold and memory save functions for capturing and recalling measurement data
• Continuity buzzer alerts when resistance is 10 Ω or less
• Backlight for clear viewing in low-light environments
• Auto power-off to conserve battery life after 10 minutes of inactivity
• Protected by double or reinforced insulation for enhanced safety

Downloads & Links

• Spec Sheet
• Spec Sheet
• Spec Sheet