HIOKI FT6041 Earth Tester | 2／3／4-pole methods, MEC without disconnecting electrodes, 2-clamp method, IP65／IP67, CAT IV 100 V, optional Z3210 Bluetooth

HIOKI FT6041 Earth Tester: MEC Method Without Disconnecting Electrodes, IP65／IP67

Overview

The FT6041 supports the 2-pole, 3-pole and 4-pole electrode methods, and with the MEC method (the 3-pole method plus a clamp sensor to measure current) it can measure a single ground electrode within a multi-grounded system without disconnecting the electrode or shutting off power. Where auxiliary ground rods cannot be driven into the ground, the standard ground net module L9846 can be used. Safety rating CAT IV 100V／CAT III 150V／CAT II 300V; dust- and waterproof to IP65／IP67.

Key Specifications

• Ranges: Electrode methods 0–300.0 kΩ (3 Ω–300 kΩ, 6 ranges, 0.001 Ω resolution on the 3 Ω range); clamp 0.02 Ω–500 Ω; low resistance 0–3000 Ω.
• MEC method and 2-clamp method: Require clamp sensors (FT9847, CT9848 are options; the FT6041-91 is a kit with sensors).
• Ground net module: L9846 included as standard, for concrete, asphalt and other surfaces where stakes cannot be driven.
• Safety and protection: CAT IV 100V／CAT III 150V／CAT II 300V; IP65／IP67; operating temperature -25–65°C.
• Wireless: With the optional Z3210, data can be sent via Bluetooth to GENNECT Cross or entered directly into Excel.
• Power and weight: Ni-MH batteries ×4, approx. 500 measurements with the 3-pole method; approx. 765 g.

Applications

• Testing of substation and factory ground grids and lightning protection grounding.
• Measurement of single ground electrodes in multi-grounded systems at cell sites and buildings.

Specifications per the HIOKI product page (retrieved 2026-10-20).