The most commonly used em instruments for environmental investigations are the geonics em31 and em61. Geonics data acquisition and data processing programs for download listed by instruments. Geonics em38 ground conductivity meter with realtime. The em38mk2 is supplied with data acquisition software call data38mk2, alternative there are a number of other software packages which support the em38mk2, which include geomar nav38mk2, rtmap38mk2 and trimble. The em343 is a simpletooperate, costeffective instrument for the geologist and hydrogeologist alike.
Like the em38, the em31 is sensitive to buried metal. Dec 07, 2012 what is the difference between the em31 and em38. Technical specifications of the secondhand em31mk2. Jan 12, 2016 for geonics em31, em31mk2, em343, em61mk2, etc. The emp400 profiler by gssi is a powerful em research tool for archeological, geological, agricultural, groundwater and site assessment investigations. While any discussion about theory or application is intended to apply to most manufacturers of electromagnetic geophysical instrumentation, this site focuses on the em31, em38, em61, em34, their data. Geonics em3rt and modeling software emigma to delineate hydrological regimes at field. Electromagnetic geonics em 31 mkii geonics em 31 mk2 ground conductivity meter. The program creates folder data34 which is the default folder for em343 files. Geonics em34 conductivity meter exploration instruments. Geomatrix earth science limited protem electromagnetic. The em31 mk2 is an updated version of the standard em31 with the data logger now incorporated into the.
Em343 the em343 is a fast, simple to operate, costeffective instrument for the engineering geophysicist, geologist and hydrogeologist alike and has been particularly successful for mapping deeper groundwater contaminant plumes and for groundwater exploration. Electromagnetic geonics em 31 geonics em 31 ground conductivity meter. The geonics em31 and em34 meters geonics, mississauga, on, canada have does of 36 m and 7. In my opinion, no one geophysical method is the answer. Geonics em31 ground conductivity meter exploration instruments. Find underground storage tanks geophysical services using geonics em31, em61, gpr, magnetometers, electrical resistivity, masw, and line locators. Turn on the em31 and set the knob to battery, to read the voltage. Underground storage tanks and geophysics em31, em61, gpr. Geonics limited products and equipment for soil and groundwater monitoring and testing. Instrumentation and software is available in the following product categories. United states natural resources 11 campus boulevard.
The em31 mk2 maps geologic variations, groundwater contaminants, or any subsurface feature associated with changes in ground conductivity. Geophysical equipment rental magnetometers,electromagnetics,resistivity,ground penetrating radar,seismic,locators for environmental, hydrology,archaeology,uxo. Aug 07, 2014 geonics em61 system and components for sale. When performing the static background test, why does the em61 response vary so much. The program creates folder data31 which is the default folder for em31 files. The gps31 can coexist in the polycorder together with the geonics standard. The em61 is a time domain metal detector used exclusively for that purpose e. For 50 years, weve developed and manufactured magnetometers. Geonics data acquisition and processing software provides broad functionality for data management including the collection, transfer, positioning, editing and. These areas of concern can then be detailed with an electrical resistivity imaging survey. Materials sold by the ucf surplus unit are sold without warranty, whether expressed or implied, and without guarantee of merchantability for any particular use or purpose. Unpublished usgs computer software was used to process the stored post. The new em38mk2 ground conductivity meter effectively combines the performance features of all previous em38 models in a single instrument.
Geonics em31 is a electromagnetic ground conductivity geophysical instrument for environmental surveys. Geonics builds two types of tdem systems, the em61 and the protem receiver. Two new basic lines of software exist, the trackmaker and multi multiunit software. The em31 can be used without a data logger however, data logging devices such as the juniper archer are available as an optional renta. The em31 mk2 is a reconfigured version of the standard em31 with a data logger.
Geonics over 25 years in roofing, tear offs new roofs. Ground conductivity and inphase measurements are read directly from the data logger screen. References operating manual for em31d noncontacting terrain conductivity meter, geonics limited, 1984. Em61 operational procedures and quality control recommendations for geophysical investigations with the geonics em61mk2 and em61. The em61mk2, an enhanced version of the patented em61, is a time domain metal detector which detects both ferrous and nonferrous objects with excellent spatial resolution. Geonics em31 3rt and modeling software emigma to delineate hydrological regimes at field.
Maps any subsurface anomaly that causes a change in the conductivity of the ground. With appropriate software, multiple measurements can be used to model the geologic profile. Geophysical equipment for engineers, geologists, and. Electromagnetic geonics em31 geonics em31 ground conductivity meter. Use the geonics em31 conductivity meter for contamination, saline intrusion and mineral. Troll 700 insitu water monitoring equipment instrument. Measurements are recorded onto an messa 2 ultrarugged windows 10 tablet via rs232 or bluetooth.
Though the results reflect changes in apparent resistivity, it is an excellent alternative to geonics em31, em34, or em38, which does not always work well in electrically resistive soil conditions. Transmitter, receiver, 2 coils, 3 cables 10m,20m,40m the em343 is a simpletooperate, costeffective instrument for the geologist and hydrogeologist alike. Situations such as metal on clothing, cell phones, or loose cable connections can cause inconsistent baseline tests. A canadianowned company, located in mississauga, ontario, canada, geonics limited is a world leader in the design, manufacture and service of electromagnetic geophysical instrumentation. Here the drawbacks of the geonics em31 in terms of resolution and. Geonics em31 only shows negative conductivity values. Geonics version dat data acquisition and processing software. Cable interfacing the em31, polycorder and gps system. Firstly, to test whether a geonics em31 induction meter could be used to accurately estimate soil salinity in jarrah and karri forest soils. If this occurs, when the software time stamps gps positions with local allegroarcher timer, a problem can occur due to nonsequential timing. Em31mk2, em31sh, rt modified em31, and em31 analog. A canadianowned company located in mississauga, ontario, geonics limited is a world leader in the design, manufacture and service of electromagnetic em geophysical instrumentation.
Electromagnetic geonics em38 geonics em38 ground conductivity meter with realtime logging. Equipment manufactured in the early years included surface, fixed wing and helicopter em systems, primarily for applications in natural resource exploration. Manual on geonics manual on geonics geonics geonics manual. For a greater level of confidence, t is a good idea to perform all of geonics em61 troubleshooting quality control tests before performing a geophysical investigation.
For automatic integration with gps, we suggest the trackmaker 31 software operating with the trimble ag114 gps. A time domain metal detector which detects both ferrous and nonferrous objects with excellent spatial resolution, perfectly suited to brown field site mitigation or locating unexploded ordinance. The geonics em38 is a frequencydomain electromagnetic geophysical instrument designed to measure bulk soil conductivity, also known as apparent conductivity. Incorporated in 1962, geonics originated with the development of the patented em16 vlf receiver, which became an exploration industry standard for ground vlf instrumentation. Em31 mk2 uses electromagnetic inductive technique that facilitates conductivity measurements without needing to be in contact with the ground. Have you performed all of geonics quality control tests. We also have have our homeoffice cleaning personnel. The geonics em31 instrument is used to map average variations of electrical conductivity at depths between zero and three to six metres. During the survey, the software cheeks incoming information and alerts the surveyor. List of geonics software manuals available for download. The em31 program for archer is stored on dat31w cd disk.
Calibrating and using an em31 electromagnetic induction meter. Geonics electromagnetometer em343 gecodmc geophysical. Target response is a single, sharply defined peak, facilitating quick and accurate location. Geonics em38 continuous readings with gps and convert to utm. Em61 operational procedures and quality control recommendations for geophysical investigations with the geonics em61mk2 and em61 navigation geonics training em61 em31 em34 em38 learn about geonics equipment. Geonics em38 ground conductivity meter with realtime logging. Geonics em31 the em31mk2 or em31sh instrument or any em31 model with rt modification with associated cables. Simple to operate and costeffective, the em343 is an instrument for the geologist and hydrogeologist alike.
The geonics instruments operate by energizing a transmitter coil, on or near. What is the maximum exploration depth of geonics equipment. However, if you have a site where ground penetrating radar works well, the resolution and maps are some of the best. The em31 sh is a short version of the em31 providing an effective depth of exploration of about four metres.
Evaluation of a geonics em31 3rt probe to delineate hydrologic regimes in a tiledrained field. Electromagnetic survey of the k1070a burial ground at. Geomatrix earth science ltd is pleased to announce that geonics ltd is offering a 10% discount off the em34 conductivity meter range until the th of february 2015 the em343 is a fast, simple to operate, costeffective instrument for the engineering geophysicist, geologist and hydro geologist alike and has been particularly successful for mapping deeper groundwater contaminant plumes and. Grapher is used to prepare data profiles of each survey line. Emigma is a geophysics interpretation software platform developed by petros eikon incorporated for data processing, simulation, inversion and imaging as well as other associated tasks. Geonics data acquisition and processing software provides broad functionality for data management including the collection, transfer, positioning, editing and presentation of recorded data. Geonics em31, em34, and em38 systems measure the terrain conductivity, inphase response, and magnetic susceptibility of rock, soil, fill, pore fluids, and metal using fdem. Geonics em31 mk2 calibration and zeroing procedure. Geonics limited is a world leader in the design and manufacture of electromagnetic geophysical instrumentation for geological, environmental, geotechnical, and uxo applications. Since it has a depth of investigation that is much greater than the em38 or em31, one may find it is not very helpful for locating buried metal. The data acquisition software supplied by geonics ltd spatially locates each measurement with a gps position. The em38mk2 provides measurement of both the quadphase conductivity and inphase susceptibility components, within two distinct depth ranges, to a maximum effective depth of 1. Software for instrumentspecific data acquisition and processing is included with.
Like other geonics instruments such as em61, em38 and em34, and em instruments from other manufactures, em31 does suffer from noise issues because of utility lines, especially power lines. The acquisition system consists of the emi meter, an allegro cx field computer juniper systems, logan, utah, and a trimble aggps 114 lband dgps differential gps. Activesync software and usb or serial cable provided by manufacturer. Egs can assist the clients technical team in selecting the appropriate techniques and ensuring a successful solution. Ini as well as data folder data31 are created in your field computer after the program is run for the first time. Em31 mk2 field procedure for zeroing and calibrating.
Em31 mk2 the em31 mk2 is an updated version of the standard em31 with the data logger now incorporated into the control console. One 1 geonics model em343 terrain conductivity meter. Rent geonics em31 em61 em34 em38 and protem systems for engineers geophysicists geologists archaeologists and agriculture. Sep 01, 2006 read calibrating and using an em31 electromagnetic induction meter to estimate and map soil salinity in the jarrah and karri forests of southwestern australia, forest ecology and management on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Evaluation of a geonics em3rt probe to delineate hydrologic regimes in a tiledrained field. Computer field computer allegro cx installed ms activesync software version 3.
For any one measurement, the standard em38 provides measurements of either the quadphase conductivity or inphase magnetic susceptibility component data, as selected by the operator. Electromagnetic geonics em34 geonics em34 conductivity meter. Geonics manual em 16 application of electromagnetic techniques in survey of rent geonics em31 em61 em34 em38 and protem systems for engineers geophysicists land geophysical equipment electromagnetic geonics em31 mk2. Interbuild far east hk ltd we are a group of companies of swedish origin, that since 1995 has been engaged in the design, development, sourcing and sales of an extensive range of garden furniture, decking and deck tiles, indoor furniture, solid wood kitchen worktops, stair and diy panels. Electromagnetic geonics em31sh geonics em 31 sh short ground conductivity meter. The geonics das70 data acquisition system was used to record and store both emi and gps data. For automatic integration with gps, we suggest the trackmaker 31 software operating with the trimble ag114 gps unit. The em31 is a frequency domain ground conductivity meter used to bulk sample the ground to about 6 metres deep. Rent geonics em31 em61 em34 em38 protem em31 em61 em34 em. Geonics limited electromagnetic geophysical instrumentation.
Erdctr109 installation technology transfer program geophysics for military construction projects engineerresearchand developmentcenter kevin l. Consult geonics limited regarding capabilities of the specific instrument. Sep 09, 2015 geophysics for military construction projects 1. Geomatrix earth science limited em61mk2 electromagnetic. The included minirec software helps organize and store this data for longterm reference, making it easily accessible in the event of an audit. Rent geonics em31 em61 em34 em38 protem em31 em61 em. Geonics em31 troubleshooting almost always starts with checking the batteries. With the logging system, the meters are keypad operated and measurements can either be automatically or manually triggered. Calibrating and using an em31 electromagnetic induction meter to estimate and map soil salinity in the jarrah and karri forests of southwestern australia. Em31mk2 data acquisition for polycorder 600 158 kb.
The em38 is excellent for determining soil salinity and can cover large areas quickly without needing grounded electrodes. Geonics em31mk2 ground conductivity meter geonics limited. Geonics em31 mk2 the program will work with the em31 mk2 and em31 with digital output module. As such, and when deeper investigations are required, deeper measuring instruments need to be considered. Convert to utm geonics em38 continuous readings gps. Ri demwaste management standard operating procedure for. Terms of sale ucf surplus property is offered for sale asis whereis. Consequently, the same group of people utilize this instrument. Electrical resistivity imagingagi supersting and geometrics. Geonics technical note tn11 use of em31 inphase information j. Em61 operational procedures for geonics em61mk2 and em61. The geonics em31 data logging system das70cx consists of a field computer allegro cx.
Using the same patented inductive method as the em31, the em343 uses 3 intercoil. The instrument can be rotated to collect data in either the horizontal or vertical dipole mode. Geonics em31mk2 calibration and zeroing procedure youtube. Common applications include the detection and delineation of groundwater. With this inductive method, surveys can be carried out under most geologic conditions. The data logger is readily removed from the console for easy data handling, or to hand carry during the survey. However, data logging devices such as the juniper archer are available as an optional rental item.
The software focuses on nonseismic applications and operates only on the windows operating system. Geonics em34 conductivity meter range sale environmental xprt. Rapid acquisition of spatially dense data sets is usually the most important requirement. Using the same inductive method as the em31 mk2, the em343 uses three intercoil spacings 10, 20 and 40 m to. Loading multiple cad files into topcon magnet field software duration. Graph of apparent conductivity along test line 1 for em31d and em343 in vertical. Surfer is used to construct plan views of em data for the entire field survey area. Software for geonics instruments downloads geonics limited. The em31 mk2 is an updated version of the standard em31 with the data logger now incorporated into the control console. The geonics das70 data acquisition system was used with the em38mk2 and em31 meters to record and store both eca and gps data.
The instrument has an effective depth of penetration, or skindepth, of approximately 1. Secondhand em31mk2 conductivitimeters electromagnetism. A compatible digital output signal is a standard feature of the em31 mk2 and. Detecting and mapping graves with ground penetrating radar is a very difficult task. Summary of companies who manufacture geophysical instruments. Gpr ground penetrating radar surveys for engineering geophysics.
Qaqc qaqc procedures are detailed in the operating manual referenced below. Geomatrix earth science limited em343 electromagnetic. Choosing the correct methodology and equipment to match the environment and ground conditions is the key to successful results from geophysical investigations. The receiver needs to be paired up with one of the time domain transmitters em47, em57, or em67. Geonics em31mk2 ground conductivity meter, electromagnetic geophysical instrument for geotechnical, geological and environmental applications.
The em31 and em38 are used for different applications because of the difference in intercoil spacing, which affects the effective depth of exploration. The minidose has an onboard memory capable of storing more than 4,000 data points, which can be downloaded to a computer or other device via a standard mini usb cable. With its 23 bit resolution, system bandwidth of 500khz, microsecond sampling gates and simultaneous xyz component measurements, the protem receiver provides the ultimate in time domain capability. Is it known why the college is selling this item an the other similar items youve listed. This unit looks to be in great shape but is used and being sold as is. The following manufacturers and suppliers are reliable sources and provide ongoing sales and support.
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