GF Instruments, s.r.o.

- Automatic Resistivity System

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ARESrepresents a well equipped resistivity and IP imaging system. Its variability, easy field operation (without PC), feeding from a standard 12 V battery or from a generator, rich support of standard and special electrode arrays and compatibility with widespread interpretation software makes ARES a cost effective and useful tool for working groups and research teams.

  • 2000 Vp-p - 5 A - 850 W Transmitter
  • 2D/3D Resistivity & IP Tomography
  • VES, RP, SP Measurements
  • up to 10 Adjustable IP Windows
  • Easy-Control System
  • Active Multi-Electrode Cables
  • Passive Cables with Switch Box
  • Roll-Along Possibility

Applications:

Groundwater explorations, geotechnical investigations, monitoring of dams and dikes, environmental studies, pollution plumes mapping, geological surveys, mineral prospecting, archaeology, detecting of cavities, underwater, marine, borehole and cross-hole measurements.

Standard accessories:

  • Transport case
  • T-piece (for connection of multi-electrode cable sections and cables for current and potential electrodes)
  • Cable for external 12 V battery
  • RS232C and USB cables
  • AC adapter (for all countries)
  • PC software ARES (MS Windows based)
  • User manual

Optional accessories:

  • Multi-Electrode cable sections - active and passive
  • Switch box (attachable 48-channel adapter) for passive multi-electrode cables
  • 12 V attachable battery pack with fast 3-stage battery charger
  • 12 V electronic power supply
  • VES-Adapter (for 5 pairs of potential electrodes)
  • Cable reels
  • Stainless steel electrodes, non-polarizable electrodes
  • Processing software for 2D/3D inversion, VES interpretation and mapping (Res2DInv/Res3DInv, IPI2Win, Surfer)

Measuring methods:

  • 2D/3D Multi-Electrode Resistivity and IP Tomography
  • VES - Vertical Electrical Sounding (resistivity and IP)
  • RP - Resistivity and IP Profiling
  • SP - Self Potential

Supported arrays:

  • Wenner Alpha / Beta / Gamma, Wenner-Schlumberger, Dipole-Dipole, Pole-Dipole, Reverse Pole-Dipole, Pole-Pole, Equatorial Dipole-Dipole, Cross-Hole, Borehole-Surface, user defined configurations

Measurement - features:

  • Self-adapting control system
  • Automatic ranging and calibration
  • Automatic pulse cycling and checking of measured values
  • Easy interruption of the measurement
  • Capability of profile prolongation by means of multi-electrode cable rolling
  • Total accuracy:
    better than 1 % (typically)
  • IP - Induced Polarization (Chargeability):
    up to 10 adjustable IP-windows, each max. 30 s, step 20 / 16.66 ms
  • Pulse:
    0.3 s - 30 s, step 0.1 s
  • SP compensation:
    constant and linearly varying SP cancellation
  • Stacking:
    manual or automatic (with self-adaptive setting)
    adjustable optimum measured voltage and maximum acceptable measurement error
  • Stored values:
    position of the measured point, output current, input voltage, SP, apparent resistivity, standard deviation, chargeability with standard deviation for up to 10 IP windows
  • Number of electrodes:
    max. 200 in one array
  • Line length for ME cable:
    max. 10 km

Control unit

  • Easy-Control system, no need of PC for the measurement
  • Alphanumeric keyboard, large LCD display
  • Measuring system can be upgraded via Internet
  • Safety switch
  • Memory:
    16 Mbit, up to 100 files, 70,000 readings
  • PC interface:
    RS232 and USB
  • PC software:
    provides data download and export for processing programs (RES2DINV / RES3DINV, Surfer, IPI2WIN and others) as well as upload of measuring procedures
  • Power supply:
    12 V car battery, 12 V attachable battery pack or generator
    AC/DC adapter for office
  • Connectors:
    for PC, battery and a universal one for all measuring accessories (Multi-Electrode Cable, VES-Adapter, Switch box), measuring current and potential clamps
  • Dimensions:
    15 x 21 x 40 cm
  • Weight:
    5.9 kg
  • Ambient conditions:
    -10°C to +60°C, weatherproof

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