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

Edit

Induced Polarization Transmitters

Edit
Click here to add content.

Induced Polarization Receivers

Edit
Click here to add content.

Sample Core IP Tester

Edit
Click here to add content.

Magnetic Susceptibility and Conductivity Meter

GDD Instrumentation Products List

Edit
Click here to add content.

Induced Polarization Transmitters

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
Specification

1800W-2400V-10A

3600W-2400V-15A

5000W-2400V-20A

Master-Slave configuration (2
Transmitters)

3600W-4800V-10A

7200W-4800V-15A

10000W-4800V-20A

SPECIFICATIONS (PER TRANSMITTER)

Total weight (including accessories and
shipping box)

39 kg

44 kg

58 kg

Weight (transmitter only)

27 kg

32 kg

40 kg

Total dimension (including accessories
and shipping box)

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
CHARACTERISTICS

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
disabled)

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
5,000W to double power (7,200W or 10,000W) and the output voltage up to
4,800V

LCD display

– Output current 0.001A resolution

– Output power

– Ground resistance (when the
transmitter is turned off, but plugged to the generator)

Power source

Standard 110-120V / 50-60Hz

(optional : 220-240V / 50-60Hz)

Standard 220-240V / 50-60Hz

Edit
Click here to add content.

Induced Polarization Receivers

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

Edit
Click here to add content.

Sample Core IP Tester

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%

Edit
Click here to add content.

Magnetic Susceptibility and Conductivity Meter

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

Authorized sales agent of geophysical instruments for various groups supplying equipment to the SE Asia and Asia Pacific region.

Pleasant to assist you for system that appropriate with your demand

Help guide you through the purchase process by matching your application to the most appropriate instrument.

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.

Contact Us

For any questions, support or sales quotes, please fill the contact form or the emails below. We will get in touch shortly.

Email

General: info@austhaigeophysics.com

Equipment Sales: sales@austhaigeophysics.com

Social Media

  • This field is for validation purposes and should be left unchanged.