Gossen Metrawatt M590A Geohm C Battery Powered Earth Tester

Gossen Metrawatt, M590A, GeoHM C Battery Powered Earth Tester with Measurement of Soil Resistivity

M590A Includes Only:

• 1 GeoHM C test instrument
• 1 carrying strap
• 1 set of batteries
• 1 factory calibration certificate
• 1 set of comprehensive instructions covering the following topics:
  • Measurement of earth resistance with instructions for 3 and 4-wire methods, with physical considerations regarding the potential gradient area as related to dissipation resistance of grounding systems of various sizes, with essential tips for the performance of measurements on difficult terrain
  • Measurement of soil resistivity with geologic analysis and calculation of dissipation resistance
  • Measurement of ohmic resistance

Features:

• 3 or 4-wire measurement selectable from the menu
• No balancing required
• Continuous monitoring of interference voltage and auxiliary earth electrode resistance with indication of limit value violations
• The indication is displayed if the Maximum probe resistance is exceeded at the beginning of the measurement
• Voltage measurement with automatic switch-over function between direct voltage and alternating voltage:
  • Direct voltage measuring range 1.0 - 250 V (with polarity display)
  • Alternating voltage measuring range 0 - 300 V

Applications:

• The GeoHM C is a compact instrument for the measurement of ground resistance in electrical systems
• The instrument is also capable of determining soil resistivity which is essential in calculating dimensions for grounding systems.
• It can thus be taken advantage of for simple, geological surveys, and for the planning of grounding systems.
• Beyond this, ohmic resistance can be measured at both solid and liquid conductors, as well as internal resistance at conductive elements, as long as these are capacitance and induction-free.

Special Functions:

• Hold function: The measurement value is frozen at the display after the measurement key is released.
• Buffer memory storage of measurement values

Battery-operated tester for the measurement of ground resistance meets international standards for performing such tests. This instrument allows the measurement of soil resistivity and ohmic resistance by means of the ammeter-voltmeter test method.