EARTH RESISTIVITY METER

EARTH RESISTIVITY & GROUND RESISTANCE METER

Product Code : MSI 3044

Product Description:

The MSI 3044 Earth Resistivity Meter is a heavy-duty, field-portable digital instrument engineered for the high-precision determination of soil resistivity, earth grounding resistance, and ground voltage parameters. Built in strict structural compliance with international geotechnical standards including ASTM G57 (Wenner 4-Pole Method) and IEC 1010-1 CAT III 200V, this instrument is essential for lightning protection design, substations, and preliminary geological surveying. The meter outputs a specialized 2mA measuring current that permits complete ground network verification without tripping active earth leakage circuit breakers (ELCBs) in the loop. The device features an automatic micro-processor timer function that keeps the testing circuit fully engaged for 3 to 5 minutes when the push-button switch and timer button are triggered together, providing hands-free operation before performing an auto power-off cycle. Delivered as a self-contained field engineering kit inside a rugged aluminum-reinforced hard case carrying system.

📊 Technical Specifications Matrix (MSI 3044)

Model Code : MSI 3044

Testing Application : Soil Resistivity, Ground Grid Impedance, and Earth Voltage

Standard Compliance : ASTM G57, IEC 1010-1, CAT III 200V Safety Class

Earth Resistance Ranges : Selectable spans: 0–20Ω / 0–200Ω / 0–2000Ω

Earth Voltage Range : 0–200V AC operating at 40 Hz to 500 Hz frequency

Measuring Current Output : Low-drain 2mA continuous current (ELCB bypass protection)

Circuit Safety Systems : Data Hold functionality & Low Battery system alerts

Mains Automation : Timed Auto Power-Off (3 to 5 Minute continuous test hold)

Calibration Baseline : Factor-calibrated using the supplied industrial-grade test leads

Premium Product Features

• ELCB Non-Tripping Current: The regulated 2mA internal circuit loop bypasses commercial residual current devices, allowing technicians to verify live facility grounding grids without disrupting building power layouts.

• Timed Continuous Testing: Synchronized dual-button locking engages a steady 3-to-5 minute measurement cycle, allowing a single site technician to freely walk the grid line and inspect auxiliary stakes.

• High-Stability Backlit Display: A large, clear micro-processor LCD display completely eliminates analog hand-crank generator reading errors and features direct ambient low-light data holding.

Standard Equipment Package Includes:

• 1 x Heavy-Duty High-Precision Digital Earth Resistance Host Meter

• 4 x Heavy-Gauge Zinc-Plated Auxiliary T-Bar Steel Earth Spikes

• 1 x Color-Coded Industrial Lead Cable Set (Red, Yellow, Green, Black rolls)

• 1 x Micro-USB Data Connection Interface Cable

• 1 x Factory Calibration Certificate and Instruction Manual

• 1 x Aluminum-Framed Foam-Lined Heavy-Duty Lockable Flight Carrying Case