GEOHM PRO

Item number: M592A

High-precision earthing and low-resistance measuring instrument

All common methods of earth measurement can be easily and reliably implemented with the GEOHM PRO. The measuring method for testing lightning protection systems under highly realistic conditions based on various types of the pulse measuring method is noteworthy. Thanks to extensive measuring accessories, earth measurements and resistance measurements can be easily implemented in any environment at any earthing or lightning protection system without disconnecting the earth electrode. Furthermore, a professional earthing analysis can be conducted on the basis of measured interference voltages and interference frequencies.

Product Highlights

The measuring method for testing lightning protection systems under highly realistic conditions based on various types of the pulse measuring method is noteworthy. Furthermore, a professional earthing analysis can be conducted on the basis of measured interference voltages and interference frequencies. Measurements with various measuring methods:

• Earthing resistance by means of the 3/4-wire measuring method
• Selective earth resistance by means of the 3-wire measuring method with current clamp / advantage: no influence on parallel earth electrodes!
• Earth loop resistance with 2 current claims or Rogowski coils, up to 4 m / advantage: no need to disconnect the earthing system!
• Soil resistivity according to the Wenner method – for the preparation of soil assessments
• Leakage current / current measurement by means of current clamp or flexible current sensor
• Low-resistance measurement with ≥ 200 mA per EN 61557-4 / VDE 0413-4

Your advantages

• Cost savings – a single instrument for numerous measuring tasks
• Time savings – simple troubleshooting thanks to professional earthing analysis
• Easy handling – thanks to intuitive user prompting, graphic display and help function
• Quick reproducibility – thanks to modern data management
• Rugged measuring case – use in adverse environments and easy transport

Applications

All common methods of earth measurement can be easily and reliably implemented with the GEOHM PRO.

• 3, 4-pole measurement,
• Selective 3-pole measurement,
• 4-pole measurement via pulse method
• Earth loop resistance via 2-clamp method
• Soil resistivity according to Wenner
• Current measurement with clamp
• Low-resistance measurement with 200 mA

Thanks to extensive measuring accessories, earth measurements and resistance measurements can be easily implemented in any environment at any earthing or lightning protection system without disconnecting the earth electrode.

Accessories