OKM GeoSeeker Mini

The GeoSeeker Mini is an effective tool for detecting water resources and underground cavities at depths of up to 100 meters (328 feet). This device relies on geoelectric measurement technology used in the OKM GeoSeeker, based on the Schlumberger method.

Features of the GeoSeeker Mini

• Geoelectric measurement procedures
• Two-dimensional visualization
• Multilingual operation
• Color touch screen
• Internal memory
• High-capacity rechargeable battery

GeoSeeker Mini for Water and Cavity Detection

Due to the high electrical conductivity of groundwater, low conductivity indicates hidden cavities such as caves, tunnels, and underground chambers. This geophysical device can efficiently detect both groundwater and subsurface cavities.

How to Operate the GeoSeeker Mini

The GeoSeeker Mini is operated via a touch screen, making the process simple and convenient. Users can select the measurement depth and the number of survey points, and then follow the simple graphical instructions. The clear images and icons support multiple languages using pure pictorial language. Operating Steps:

• Select Depth and Survey Points: Choose the measurement depth and the number of points to be surveyed.
• Replace Electrodes: During the measurement, electrodes need to be replaced to measure ground resistance at specific locations.
• Read Results: Results are displayed after each scan on the color screen. The final result is displayed as a two-dimensional survey image at the end of the measurement.

Visualizing Water Resource and Cavity Data

After completing the geoelectric measurement with the GeoSeeker Mini, the final result is calculated to create a two-dimensional representative image of the underground resistance. This image allows users to easily read the data, with colors indicating water deposits (blue with water droplets) and/or detected cavities (red with a tunnel symbol).

Clear Data Interpretation

Depending on the measurement size and depth, the screen features several columns with specific depth information. Users can toggle between simplified representations of the results using the on-screen buttons:

• Left Button (Water Droplets): Displays representations of detected water deposits.
• Middle Button (Tunnel Entrance): Displays representations of detected cavities.

Ease of Use and Language Independence

Thanks to step-by-step instructions and results displayed in simple illustrative images, the device can be used independently of language. This means it is suitable for use by inexperienced users worldwide, regardless of their spoken language.

Geoelectric Applications with the GeoSeeker Mini

This versatile geoelectric device can detect groundwater resources and hidden cavities due to their specific electrical resistance properties.

Water Detection

Groundwater resources have good electrical conductivity, leading to low apparent resistance values when measured. The ability to detect water is highly beneficial in various fields:

• Water Finders: Use the device to accurately locate groundwater.
• Well Builders and Drilling Companies: Helps identify the best drilling locations.
• Agriculture and Fruit Farming: Assists in identifying water sources needed for irrigation.
• Mining and Construction Contractors: Contributes to project planning and ensuring construction safety.

Detecting Groundwater Sources

The device can detect various types of groundwater sources, including:

• Groundwater deposits: Locating groundwater accumulations.
• Groundwater level: Measuring water levels in the soil.
• Freshwater and drinking water: Detecting potable water sources.
• Underground watercourses and veins: Identifying underground water streams and veins.
• Groundwater streams and springs: Detecting water paths and springs.

Cavity Detection

Hidden cavities and hollow spaces have poor electrical conductivity, resulting in high resistance values when measured. This feature makes the GeoSeeker Mini an effective tool in:

• Archaeology and History: Assisting archaeologists in discovering historical sites and buried artifacts.
• Treasure Hunters: Identifying buried treasures and hideouts.
• Geotechnical Engineering: Supporting engineers in their projects by providing accurate data on soil cavities.
• Military Services: Using the device to detect underground tunnels and bunkers.
• Construction Contractors: Ensuring site safety by identifying subsurface cavities and passages.

Discoverable Cavities

The GeoSeeker Mini can detect a variety of subsurface cavities, including:

• Caves and Tunnels: Detecting natural caves and buried tunnels.
• Showrooms and Inspection Chambers: Identifying underground showrooms and inspection chambers.
• Rooms, Tombs, and Graves: Discovering buried rooms and ancient graves.
• Bunkers and Cellars: Locating underground bunkers and cellars.

Usage Scenarios for the GeoSeeker Mini

• Water Detection/Well Building
• Geotechnical Engineering
• Cavity Detection
• Agriculture
• Archaeology
• OKM Search Services

GeoSeeker Mini Tools and Accessories

• Control unit
• 4 electrodes
• Two power cable spools (290 mm diameter)
• 2 voltage cables (10 m)
• Connection cable (2 m)
• Power pack
• Charger with charging cable
• Travel adapter
• Protective case (water and shock resistant)
• Quick start guide

Device Specifications

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-inch resistive touch screen, 480 x 320 pixels
• Display CPU: Cortex M3, 32 MHz, 128 KB RAM
• Data memory: 4 GB
• Sampling rate: 4096 Hz (64x oversampling for 512 values)
• Operating time: approx. 6 - 8 hours
• CPU: 80 MHz Cortex M3
• Effective range (differential): -1400 to +1400 mV
• Measurement period per scan point: min. 16 seconds
• Output: 320 V / 0.4 A
• Input resistance (constant): approx. 12 MΩ

Power Cable Spools (290 mm diameter)

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

Electrodes

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

Voltage Cables

• Cable length: 10 m
• Marks: 10

The technical data are average values. Slight deviations may occur during operation.