GDD Instrumentation
Products
"Austhai Geophysical Consultants
is the authorized agent for GDD Instrumentation products."
Induced Polarization ( IP instrument )
We are sales agent of high-quality equipment and professional sale support with expertise in the use of a wide range of geophysical equipment, Combining our survey experience with top-rated instruments provides the best value possible for our customers.
GDD Instrumentation is a world leader in high-tech geophysical instrumentation for mining and exploration geophysics, groundwater exploration, geotechnical investigations, and other related fields. GDD has developed, manufactured, and sold a wide range of Electromagnetic instruments, Resistivity/Induced Polarization instruments and Electrical Conductivity instruments.
GDD Instrumentation Products List
Reliable and robust, the GDD IP Transmitters (models TxIII, TxII and Tx4) are used over the world for apparent resistivity and time-domain induced polarization (IP) surveys and drilling.
Features:
- Resistivity and time domain IP survey
- User friendly and robust
- Shock resistant and environmentally sealed
- Protection against short circuits even at zero (0) ohms
- Displays electrode contact, transmitting power and current
- Applications: mining exploration, groundwater exploration, geotechnical investigations and other related fields
Models and Specifications:
TxIII
TxII
TxII
General | 1800W-2400V-10A | 3600W-2400V-15A | 5000W-2400V-20A |
Master-Slave configuration (2 | 3600W-4800V-10A | 7200W-4800V-15A | 10000W-4800V-20A |
SPECIFICATIONS (PER TRANSMITTER) | |||
Total weight (including accessories and | 39 kg | 44 kg | 58 kg |
Weight (transmitter only) | 27 kg | 32 kg | 40 kg |
Total dimension (including accessories | 56 x 36 x 56 cm | 28 x 49 x 70 cm | 34 x 52 x 76 cm |
Operating temperature | -40° C to +65° C (-40° F to +150° F) | ||
ELECTRICAL | |||
Time base | Time domain: ON+, OFF, ON-, OFF Time base: DC, 1, 2, 4, 8 et 16 seconds | ||
Output current | 0.030A to 20A (standard operation) 0.0A to 20A (Open Loop protection | ||
DC mode | Maximum of 5A | ||
Output voltage | 150V to 2400V / 14 voltage scales | ||
Master-Slave configuration | Ability to link 2 GDD IP Transmitters of 3,600W or | ||
LCD display | – Output current 0.001A resolution – Output power – Ground resistance (when the | ||
Power source | Standard 110-120V / 50-60Hz (optional : 220-240V / 50-60Hz) | Standard 220-240V / 50-60Hz | |
Relative resistivity and time domain induced polarization measurement
The highly sensitive GDD IP Receiver (models GRx8-32 and GRx2) is a compact unit designed for high productivity resistivity and time-domain induced polarization (IP) surveys in mineral exploration, groundwater exploration, geotechnical investigations and other related fields
Features:
- Resistivity and time domain induced polarization measurement
- 2D and 3D configuration: pole-dipole, dipole-dipole, pole-pole, Wenner, Gradient, Schlumberger and others
- Displays waveform, electrode contact, noise, Vp, IP decay curves, apparent resistivity and chargeability values, etc.
- Provide real time feedback
- Transfers data from PDA to your PC with an USB cable
- Applications: mining exploration, groundwater exploration, geotechnical investigations and other related fields
A new efficient way of collecting 3D Resistivity and Induced Polarization (IP) data for your geophysical ground surveys!
The 3D IP system in development will stand out in the world of geophysical industry with the ability to do quality control and analysis (QA / QC) of the data directly in the field for each of the GDD IP Receiver model.
Models and Specifications:
GRx8-32
8-10-16-24-32 channels
GRx8 Mini 8 channels
GRx2
2 channels
SPECIFICATIONS – IP RECEIVERS | ||||
Total weight (including shipping box and accessories) | 23 kg | 16.5 kg | 7 kg | |
IP Receiver weight | 7 kg | 3.1 kg | 1.6 kg | |
Total dimension | 68 x 40 x 24 cm | 53 x 38 x 21 cm | 49 x 18 x 39 cm | |
Operating temperature | -40° C to +60° C / (-40° F to +140° F) | |||
Dipole number | Up to 32 dipoles simultaneously | Up to 8 dipoles simultaneously | Up to 2 dipoles simultaneously | |
Type of surveys | Surveys 1D, 2D and 3D Examples : 4 lines X 8 channels 2 lines X 16 channels 1 line X 32 channels | Surveys 1D, 2D and 3D Examples : 2 lines X 4 channels 1 line X 8 channels | Surveys 1D and 2D | |
Adjustment | Automatic synchronization, SP compensation, gain setting and stacking. | |||
ADCs | 24-bit | |||
Gain | From 1 to 1 000 000 000 (109) | |||
Synchronization | Automatic and re-synchronization process on primary voltage signals | |||
Twenty programmable chargeability windows | Arithmetic, logarithmic, semi-logarithmic, Cole and user defined | |||
Noise reduction | Automatic stacking number | |||
Main values read by the GDD IP Receiver | Apparent resistivity chargeability, standard deviation, % of symmetrical Vp, etc | |||
Battery | Internal Lithium-Ion batteries and optional external Lithium-Ion battery pack | |||
Enclosure | Heavy-duty Pelican case, environmentally sealed | |||
Compatibility | Field device like Allegro2 of Juniper Systems Inc. | Field device like Allegro2 or Archer2 of Juniper Systems Inc. | Field device like Archer2 of Juniper Systems Inc. | |
ELECTRICAL CHARACTERISTICS | ||||
Ground resistance | Up to 1.5 MΩ | |||
Signal waveform | Time domain : ON+, OFF, ON-, OFF Time base : 0.5, 1, 2, 4, 8 et 16 sec | |||
Input impedance | 5 GΩ at 0.125 Hz and 130 MΩ at 7 Hz | |||
Primary voltage | ± 10µ to ± 15V for any channel | |||
Protection | 500V (on each channel) | |||
Input | True differential for common mode rejection in dipole configuration | |||
Voltage measurement | Resolution 1µV, Accuracy ≤ 0.15% | |||
Chargeability measurement | Resolution 1µV/V, Accuracy ≤ 0.4% | |||
SP offset adjustment | Automatic compensation through linear drift correction per steps of 150µ, with resolution of 1µV | |||
Filter | Eight-pole Bessel low-pass 15Hz, notch filter 50 and 60Hz | |||
The Sample Core IP Tester (SCIP) manufactured by Instrumentation GDD Inc. is an innovative way to measure the electrical properties of drill cores, samples and outcrops.
The SCIP is a portable, reliable, battery-operated instrument for evaluating the resistive properties and IP response of your cores. With this instrument, you get the information that a geophysicist needs to design an appropriate geophysical survey. In other words, you can know if an IP survey would be appropriate. The SCIP will also help you to better define your IP inversion.
Features:
- Apparent resistivity and time domain induced polarization (IP) measurement
- User friendly and inexpensive
- Versatile: use your own core holders
- Transfers data from the PDA to your PC with an ISB cable
- Screen decay curve (IP)
- Provide real time feedback: direct calculation or resistivity and chargeability values
- Applications : mining exploration and other related fields
Now, you can use your SCIP with your Android devices.
The SCIP is a portable, reliable, battery-operated instrument for evaluating the resistive properties and IP response of your cores. With this instrument, you get the information that a geophysicist needs to design an appropriate geophysical survey. In other words, you can know if an IP survey would be appropriate. The SCIP will also help you to better define your IP inversion.
Models and Specifications:
SCIP Tester
SPECIFICATIONS – SCIP TESTER | |
Total weight (including accessories and shipping box) | 8 kg |
Total dimension (including accessories and shipping box) | Total dimension (including accessories and shipping box) |
Operating temperature | -30° C to +60° C (-22° F to +140° F) |
Enclosure | Heavy duty Pelican case, environmentally sealed |
Twenty chargeability windows | Arithmetic, logarithmic, semi-logarithmic, Cole and user defined |
Noise reduction | Automatic stacking number |
Main values read by the SCIP | Apparent resistivity (Ω*m), primary voltage (mV), primary voltage error (%), current (uA), chargeability and chargeability error (%) |
Compatibility | Field device PDA Archer2 of Juniper Systems Inc. |
ELECTRICAL CHARACTERISTIC IP TRANSMITTER | |
Signal waveform | Time domain : ON+, OFF, ON-, OFF Time base : 0.5, 1, 2, 4, 8, 16, 32 and 128 seconds |
Voltage mode (output selection) |
3, 6, 9, 12 V |
Current mode (output selection) | 0.5, 5, 50, 500 µA |
Max power | Voltage mode : 36 mW Current mode : 6.5 mW |
IP RECEIVER | |
Contact resistance | Up to 50 MΩ |
Input impedance | >130 MΩ |
Primary voltage | Up to ±13 V |
Differential input | In dipole configuration |
Filter | Eight-pole Bessel low-pass 15 Hz |
Voltage measurement | Resolution 1 µV, accuracy 0.2% |
Current measurement | Resolution 1 nA, accuracy 0.2% |
Chargeability measurement | Resolution 1 µV/V, accuracy 0.38% |
The MPP probe measures the magnetic susceptibility (10-3 SI) as well as the relative and absolute EM conductivity (MHOS/M) values of small and large objects such as drill cores, samples, outcrops, etc.
With the MPP probe, you can get the information that you need, to design an appropriate geophysical survey since you are able to establish a correlation between your samples and your EM / MAG survey.
Features:
- Magnetic susceptibility and EM conductivity measurement
- Relate your samples and drill cores to you EM/MAG survey
- Log physical core properties and positions in a PDA
- Fast results
- Robust and reliable
- Shock resistant, portable and weatherproof
- Wireless communication (Bluetooth) or with a serial cable (RS-232)
- Provide real time feedback
- Standard data file format in ASCII
- Applications: mining exploration, geophysical investigations and other related fields
Now, you can use your MPP-EM2S+ with your Android devices.
Models and Specifications:
MPP-EM2S+
SPECIFICATIONS – MPP PROBE | |
WEIGHT (MPP only / in Shipping Box) | 0.4 kg / 4.3 kg |
Total dimension | 32 x 27 x 18 cm |
PDA | Somo or Archer2 PDA (Jupiter Systems Inc.) |
Reading modes | Punctual, continuous, manual, graphic and (single reading MPP-EM2S+ only) |
Screen | Display real time magnetic susceptibility and EM conductivity reading |
Sample rate | Up to 10 times per second |
Displayed rate | Every 0.5 second |
Why Buy from Us?
Authorized sales agent of geophysical instruments
Pleasant to assist you for system that appropriate with your demand
Professional sale support with expertise in the use of a wide range of geophysical equipment.
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