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LandMapper ERM-02

LandMapper ERM-02

LandMapper ERM-02
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LandMapper ERM-02 is a newest device in the product line of Landviser, LLC. This portative device can measure three important electrical properties of solid, semisolid, and liquid media: electrical resistivity (ER), conductivity (EC), and potential (EP). Using the most accurate four-electrode principle LandMapper ERM-02 measures ER or EC to help new deviceyou to delineate areas with contrasting soil properties within the fields quickly, non-destructively, and cost-efficiently. Using the device prior to soil sampling you can significantly reduce the amount of samples required and precisely design a sampling plan based on the site spatial variability.

LandMapper ERM-02 measures electrical resistivity or conductivity of soils and related media for express non-destructive mapping and monitoring of agricultural fields as well as construction and remediation sites. In a typical setting, a four-electrode probe is placed on the soil surface and an electrical resistivity or conductivity value is read from the digital display. The device measures electrical resistivity or conductivity in a surface soil layer of the depth from 2 cm down to 20 m, which is set by varying the size of a four-electrode probe.

LandMapper ERM-02 is the most versatile device in LandMapper series and allows you not only measure ER and EC using artificially applied electrical current and four-electrode probes, but also study natural electrical fields in soils (self-potentials) and plants (bio-potentials) with patented non-polarizing electrodes. Electrical balance between soil and plants is important for plant health and electrical potential gradient governs water and nutrient uptake by plants. Monitoring of electrical potentials in plants and soils is a cutting-edge research topic in the leading scientific centers around the world.

LandMapper

• Compact and portabledesign (weights only 250 g without the probe)
• Fast (one measurement takes 4 sec.)
• Accurate (automatically accounts for spontaneous potential arising from grounding of the electrodes)
• Safe and economical (uses a standard 9 V battery)
• Seamless connection with personal computer for data transfer (stores 999 data values)
• Modular and interchangeable 4-electrode probes, patented non-polarizing electrodes, and detachable measuring unit
• Versatile (the same unit can be used in field mapping and laboratory experiments)
• Affordable (enquire about our very competitive prices and available discounts)

LandMapper ERM-02

Manufactured by “Landviser”

 

Technical Specifications
• Range of measurements ER=0.1-1 106 Ohmm; EC=1 10-6 – 10 Sm-1; EP=-1 to +1 V (∆=0.01 mV)
• User-selectable ER/EC/EP modes of measurement.
• Automatically adjusts electrical resistivity/conductivity/potential ranges to provide best
measurement accuracy.
• Precision and error of measurements is typically less than 1%. See exact values for the ER
ranges in LandMapper ERM-01 flyer.
• User-defined K (geometrical coefficient) 0.1 up to 99.9
• Quantity of changeable K-coefficients 10
• Quantity of data storage locations 999
• Range of operation temperatures from – 10 up to + 40 C0 or 14 to 100 F
• Air humidity no more than 65 %
• Weight of the device no more 250 g or 8 oz
• Current of consumption no more 7.0 mA
• Output voltage, no more 5 V
• Measurements comparable with DC methods, frequency 1.25 Hz
• Computer connection serial port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LandMapper® ERM-02 technical specification

LandMapper

Measuring Electrical Properties of Natural Systems with LandMapper® ERM-02

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Agriculture

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• Biology

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LandMapper

LandMapper

LandMapper

 

 

 

 

 

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