GEOHM XTRA
High-precision earthing and low-resistance measuring instrument with GPS
All common methods of earth measurement can be easily and reliably implemented with the GEOHM XTRA. In combination with the integrated GPS module, all measured values are saved together with GPS coordinates. 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.
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. In combination with the integrated GPS module, all measured values are saved together with GPS coordinates. 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
- Integrated GPS module for storing the positions of test objects
The GEOHM XTRA is capable of much more than just easy and reliable implementation of the most common methods of earth measurement. In combination with the integrated GPS module, all measured values are saved together with GPS coordinates. 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.
1 GEOHM XTRA with GPS module
1 Carrying case
1 Measurement cable, 1.2 m, red
1 Measurement cable, 2.2 m, black
2 Alligator clips, red and black
2 Measurement cables, 25 m, red and green
1 Measurement cable, 50 m, blue
4 Earth drills, 30 cm
1 USB cable
1 Automotive charging cable
1 Screw terminal
1 Power pack
1 Set of operating instructions
1 Calibration certificate
All common methods of earth measurement can be easily and reliably implemented with the GEOHM XTRA. In combination with the integrated GPS module, all measured values are saved together with GPS coordinates.
- 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.
- 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
