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MPT-DAS-1
MPT-EIT2000 Series
NPE-SE and NPE-BH
Custom ERT Cables
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The MPT EIT2000 Series is a fully autonomous Resistivity and IP Monitoring System designed for long-term monitoring of subsurface processes. The system is able to make three-dimensional subsurface images using electrical resistivity tomography (ERT) or electrical impedance tomography (EIT). ERT/EIT is a proven technology for monitoring fluid infiltration and enhanced remediation technologies such as air sparging and steam-enhanced remediation. The EIT2000 Series is designed specifically for long term monitoring applications. The system is unique in that it can be controlled and configured remotely over a phone line or other serial communication link or can be configured to collect data sets autonomously at specified times. 
Designed for use in high noise industrial environments, measurement windows are chosen to provide optimal rejection of power line noise, and a high-order, polynomial, stacking algorithm is used to remove telluric and electrode potential noise. Signals resolution is 6 decimal places on five ranges from 0.1 V, 1 V, 10 V, 100V and 400 V using fully isolated receivers. The transmitter provides precise time-domain induced-polarization (IP) or resistivity waveforms at frequencies from 1/8 Hz to 30 Hz. It can switch up to 500 volts DC and 5 amperes of electric current. The multiplexer allows any four-electrode pattern of transmitters and receivers. Each multiplexer allows the transmitter and receiver to connect to 60 electrodes. Multiplexers can be chained permitting connection to hundreds of electrodes at once. Commonly, an entire survey site is wired at once, reducing complexity and operator involvement. The entire system is run from a single, standard 120 Volt 60 Hz power source. The operating software uses an intuitive, user-friendly, window environment to configure and control the system. All system features can be configured and operated remotely. Alternatively, the system can be configured to collect a series of planes autonomously. The data can then be stored and retrieved later by the user via the modem. The specifications are available in Adobe Acrobat Reader™ format. If you don't have Adobe Acrobat reader or need an updated version, visit the Adobe™ website to get your free download.  |
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