Fluke 1623 and 1625 Earth Ground Testers

1623 Features

• Automatic Frequency Control (AFC) which identifies existing interference and chooses a measurement frequency to minimize its effect, giving you a more accurate earth ground value.
• R* measurement calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault to earth ground would see.
• Adjustable limits for quick test result verification.
• 3 and 4 pole earth ground measurement
• 4 Pole soil resistivity testing
• 2 pole resistance measurement AC
• 2 and 4 pole resistance measurement DC
• Selective testing with no disconnection of ground conductor using 1 clamp
• Stakeless testing and quick ground loop testing using 2 clamps
• Earth impedance measurement at 55 Hz
• Automatic frequency control AFC at 94, 105, 111, 128 Hz
• Measuring voltage switchable from 20 to 48 Volts
• Programmable limits and settings
• Continuity with buzzer