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Technical Specifications of LandMapper ERM-01

 

  • ·         Range of measurements…...............…………………………………….………......................................ER= 0.1-1 106 Ohm m
  • ·         Automatically adjusts electrical resistivity range to provide best measurement accuracy.
    • ·         Precision and error of measurements is typically less than 1%.
  • ·         User-defined K (geometrical coefficient)……......................................……………….………….……...0.01 up to 99.99
  • ·         Quantity of changeable K-coefficients..………………........................…………………………………………...9
  • ·         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

Controls

 -       ON/OFF key

    ►    -  FUNCTION key. The multifunction key for operation mode selection (ER/EC/EP) and storage of data

    ◄      - INPUT key. The multifunction key for taking measurements, correction of a K coefficient, recording or erasing data or contrast values

    ▲       - UP key. The multifunction key for scrolling through operation modes, K coefficients, storage cells, or contrast values

    ▼       - DOWN key. The multifunction key for scrolling through operation modes, K coefficients, storage cells, or contrast values

AB    -  Socket for connection of current-inducing AB electrodes

    MN   -  Socket for connection of voltage-measuring electrodes (plug non-polarizing electrodes here for electrical potential measurements)

 

Serial port for data transfer to a computer is on the top side panel of the device.