Hioki 3157-01 AC Grounding HiTester

Overview

The Hioki 3157-01 is an AC Grounding HiTester designed for precise low-resistance measurement in grounding systems and electrical installations. It employs a 4-terminal measurement method for accurate readings without test lead resistance, making it ideal for field testing of grounding connections and safety-critical circuits.

Key Features

• AC 4-terminal measurement method with PWM constant current control
• Current generation range 3.0 A to 31.0 A (0.1 A resolution) into 0.1 Ohm load
• Resistance measurement 0 to 1.800 Ohm with 0.001 Ohm resolution and ±2% rdg. ±4 dgt. accuracy
• Current monitoring 0 to 35.0 A AC (0.1 A resolution), 2 readings per second
• Maximum output power 130 VA at output terminals
• 50 Hz or 60 Hz sine wave operation with soft start function
• Programmable timer (0.5 to 999 seconds) and Pass/Fail comparator function
• Memory storage for up to 20 test settings
• Fluorescent tube digital display

Applications

• Grounding system testing and verification
• Electrical safety testing in substations and power distribution
• Lightning protection system verification
• Industrial equipment grounding compliance

Included Accessories

• Power cord
• Spare fuse
• Shorting bar (2)