Multi-Electrode Resistivity Survey System

The E60DN Multi-Electrode Resistivity Survey System is a new type of electrical methodology device. It uses software-controlled data acquisition and electrode control routines and the data is presented graphically in real-time for ease of real-time monitoring of data quality.

Functions
This device can operate all kinds of equipment for high-density resistivity tests, and has self custom data acquisition monitoring capabilities. Because the device has a built-in high performance computer, when matched with suitable data processing software, is fully capable of doing on-site data processing.

Main Properties:
1. Using a distributed design and 9-pin calbes, the system is capable of connecting 65535 electrodes to meet the needs of profiling and 3D high density surveying.
2. Besides standard high density equipment, it also has an open electrode editing system, allowing the user to arbitrarily define the input voltages and other parameters of the powered electrodes AB and measurement electrodes MN as needed.
3. It has a binning filter to effectively suppress ground electrical interference, raising the signal to noise ratio.
4. Ground resistance testing and electrode self-test capability gives maximum assurance on the quality of the test materials. It has real-time display of the resistivity diagram, current positions of the powered and measurement electrodes, supply current, and potential curve.
5. Data acquisition can be stopped at any point to undergo electrode shielding, outlier filtering, or applying new settings.

Electrode Switch Main Properties
1. Self-addressing; Code runs after connecting with E60DN.
2. Built-in microprocessor handles commands from the main computer to control workflow.
3. Up to 20 m between nodes satisfies most surveying needs.
4. Small, light, and sturdy design, well-suited for field work.
5. Power supply cables and measurement cables have different diameters and shielding to meet the needs of using high current while minimizing inter-cable interference.

Technical Specifications
Receiver
Maximum number of electrodes: 65535
A/D converter: 24 bits

Transmitter:
Maximum peak power output: 400 Vpp/1 APP (built-in power source)
800 Vpp/3 APP (external power source)
Pulse type: Square wave (duty cycle 50%)
Pulse length: 1s, 2s, 3s, 4s (selectable)

Display and Recording:
Central Processor: Intel (R) Atom (TM) CPU N455 @1.66GHz, 1.67 GHz
RAM: 1.00 GB
Built-in hard drive: 250 GB
Monitor: 10.1" LED-backlit LCD screen WSVGA (1024 X 600)
Keyboard: Sealed keyboard and touchpad
Ports: Standard USB
Input power: 12V DC
Recording Format: GeoPen format/ABEM format/text

Environmental Requirements
Operating temperature: -20 to 50 degrees C
Storage temperature: -40 to 70 degrees C
Operating humidity: 95%

Operating system: Windows 7
Physical properties: 360 X 230 X 100 mm, 6 kg

Applications
This device can be widely applied in areas such as traffic, energy, urban construction, industrial and civil buildings, geological environment surveying, environmental disaster assessment, and preventative dike maintenance surveying. The E60DN main unit is capable of all device-based electrical methodology surveying, including electrical depth sounding, combined profiling, and 2 and 3 dimensional high density resistivity surveying.

Archetypal Projects
1 Hollow Mining Area Detection
2 Fault Exploration
3 Dams of Dangerous Reservoir Detection
4 Bedrock Surface Exploration
5 Landslide Investigation