Extech 382357 Clamp-On Ground Resistance Tester
The Extech 382357 Clamp-On Ground Resistance Tester is a versatile, non-invasive tool designed for measuring ground resistance and AC leakage current in electrical systems. It offers autoranging resistance measurements from 0.025Ω to 1500Ω and true RMS AC leakage current measurements from 0.2mA to 30A. This tester eliminates the need for auxiliary ground spikes, making it ideal for testing multi-grounded systems such as communication towers, substations, and industrial facilities.
Description
The Extech 382357 Clamp-On Ground Resistance Tester is engineered to provide accurate, non-contact measurements of ground resistance and AC leakage current, streamlining the testing process for electrical systems. Its clamp-on design allows for quick and safe testing without the need to disconnect the ground under test or use auxiliary ground rods. The device features an autoranging capability for ground resistance measurements, covering a range from 0.025Ω to 1500Ω with a high resolution of 0.002Ω. For AC leakage current, it offers true RMS measurements from 0.2mA to 30A, ensuring precise readings across various current levels. The tester is equipped with a 0.9-inch (23mm) jaw size, accommodating larger ground rods commonly found in industrial and utility applications. A 9999-count LCD display with data hold functionality enhances readability, while programmable high and low alarms provide immediate notification of resistance deviations. Additionally, the device supports internal data logging for up to 116 data points, facilitating trend analysis and record-keeping. Automatic self-calibration ensures consistent accuracy, and verification resistors are included to confirm meter performance. Designed with user safety in mind, the Extech 382357 complies with CAT II-600V and CAT III-300V safety standards, making it suitable for a wide range of electrical testing environments.
Features
- Autoranging Ground Resistance Measurements: Measures from 0.025Ω to 1500Ω with 0.002Ω resolution.
- True RMS AC Leakage Current: Ranges from 0.2mA to 30A with 1.000mA resolution.
- Programmable Datalogging: Stores up to 116 data points for trend analysis.
- High/Low Threshold Alarms: User-programmable alarms for resistance deviations.
- Large Jaw Size: 0.9-inch (23mm) capacity for accommodating large ground rods.
- 9999-Count LCD Display: Clear readout with data hold functionality.
- Automatic Self-Calibration: Ensures consistent measurement accuracy.
- Verification Resistors Included: Allows for performance confirmation.
- Safety Compliance: Meets CAT II-600V and CAT III-300V standards.
- Portable Design: Comes with a durable metal storage case for easy transport.
Includes
- 9V battery
- Resistance check plate
- Durable metal storage case
