Water detector and cavity detector down to 100 meters (328 ft) depth

Like the water detector OKM GeoSeeker, the GeoSeeker Mini utilizes a geoelectrical measurement procedure based on Schlumberger. The water detector – that can also be used to detect underground cavities – determines the soil resistivity. Based on that apparent resistivity of the ground the detector is able to detect underground water resources like fresh water, drinking water, water-bearing gravel and groundwater level.

Operating the water and cavity detector GeoSeeker Mini

The water detector GeoSeeker Mini is operated via touchscreen. Select the measurement depth as well as the amount of scanning points and simply follow the graphical instructions. Due to easy-to-understand images and icons, the GeoSeeker Mini is multilingual by using pure picture language.

During the measurement the electrodes have to be replaced several times to measure the ground resistivity at certain places. All instructions can be read from the color display, where the results are presented after each single scan. At the very end of a measurement the final result is shown as a graphical 2D scan image.

Data visualization of water resources and cavity

After finishing a geoelectrical measurement, the final result is calculated to generate a representative 2D scan image of the underground resistivity. With the pictograms in the lower display area, users can read directly the diagram: The colors in the scheme indicate water deposits (blue with water drops) and/or detected cavities (red with tunnel symbol).

Depending on the selection of the size and depth of the measurement, the display contains several columns and is provided with corresponding depth information.

Using the left button (water drops) and the middle button (tunnel entrance), the user can switch to simplified representations of the measurement results.

Thanks to the realization of step-by-step instructions and results in simple images and pictograms, the GeoSeeker Mini is language-independent. That means, the water detector can be used by inexperienced users all over the world – no matter what language they speak.

Geoelectrical applications with GeoSeeker Mini

1x Control Unit

4x Electrode

2x Power Cable Drum (Ø 290 mm)

2x Voltage Cable (10 m)

2x Connecting Cable (2 m)

1x Power Pack PP20V3A01

1x Charger with charging cable

1x Travel Adapter Set

1x Waterproof and shock-resistant Protector Case

1x Quick Start Guide

Control unit

• Dimensions (H x W x D): 410 x 340 x 180 mm
• Weight: 4.5 kg
• Input voltage (max.): 11 – 13 V DC / 30 W
• Display: 3.5” Resistive touch, 480 x 320 Pixel
• Display CPU: Cortex M3, 32 MHz, 128 KB RAM
• Data memory: 4 GB
• Sample rate: 4096 Hz (64-fold oversampling of 512 values)
• Operating time: approx. 6 – 8 h
• CPU: 80 MHz Cortex M3
• ADC: 16 bit
• Effective Range: (differential) –1400 to +1400 mV
• Measurement Period per Scan Point: min. 16 s
• Output: 320 V / 0.4 A
• Input Resistance (static): approx. 12 MΩ

Power Cable Drums (Ø 290 mm)

• Dimensions (H x W x D): 360 x 290 x 200 mm
• Weight: 3.6 kg
• Cable length: 100 m
• Markers: 10

Electrodes

• Dimensions (H x W x D): 270 x 120 x 35 mm
• Weight: 0.4 kg

Voltage Cable

• Cable length: 10 m
• Markers: 10

The technical data are average values. Minor deviations are possible during operation.

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