What is the measurement range for earth resistance?
The tester measures earth resistance from 0 to 600Ω, covering most grounding system testing needs.
Can it measure current as well as resistance?
Yes. In addition to earth resistance, the tester measures leakage/ground current from 0 to 20A without breaking the circuit.
What is a clamp earth resistance tester used for?
It is used to test the grounding resistance of electrical systems, lightning protection systems, and equipment grounding — all without disconnecting the ground conductor, making testing faster and safer than traditional methods.
How large is the display?
It features a large black screen, 32mm in size, for easy reading of measurement values in various lighting conditions.
Can I use it on thick cables or ground rods?
Yes. The tester is designed with a large jaw size, allowing it to clamp around large ground conductors and thicker cables.
Will electrical interference affect the readings?
No. The tester features strong anti-interference capability, ensuring stable and accurate readings even in environments with significant electrical noise.
Does it have an alarm function?
Yes. The built-in alarm alerts you when measurement results exceed preset thresholds, making quick pass/fail inspections easier.
How much data can it store?
The tester can store up to 500 sets of measurement data, allowing you to record and review results on site or back at the office.
Is the tester protected against overloads?
Yes. It includes overload protection to safeguard the instrument from excessive current or voltage, extending its service life.
How do I know when the battery is low?
The battery indication feature displays the battery status on screen, so you’ll know when it’s time to replace the batteries.
What happens if I forget to turn it off?
Don’t worry — the auto power off function automatically shuts down the tester after a period of inactivity, saving battery life.
