The EM38-MK2 provides measurement of both the quad-phase (conductivity) and in-phase (magnetic susceptibility) components within two distinct depth ranges, all simultaneously, without any requirement for soil-to-instrument contact.

Learn how to assemble, operate, and troubleshoot Geonics equipment. Get started! The EM38 is a conductivity meter that measures apparent conductivity in millisiemens per meter and magnetic suceptibility (in-phase component) in parts per thousand of the ratio of the secondary magnetic field to the primary magnetic field.

EM38-MK2: a recognized standard within the global agricultural community for the characterization of subsurface properties, the EM38-MK2 provides measurement of apparent conductivity and magnetic susceptibility to an effective depth of 1.5 metres.

The EM31 and EM38 are used for different applications because of the difference in intercoil spacing, which affects the effective depth of exploration. The EM31 has a coil spacing of 3.7 meters that allows it to reach depths of approximately 6 meters in the vertical dipole mode and approximately 3 meters in the horizontal dipole mode.

Designed to be particularly useful for agricultural surveys measuring soil salinity, the EM38 can cover large areas quickly without ground electrodes. Based on the same patented induction principle as the EM31, the EM38 provides depths of exploration of 1.5 meters and 0.75 meters in the vertical and horizontal dipole modes respectively.

The EM38-MK2-1 provides simultaneous measurements of ground conductivity (Quad-Phase) and magnetic susceptibility (In-Phase) with one transmitter receiver coil separation at 1 m for 2 effective depth ranges; 1.5 m in vertical dipole mode and 0.75 m in horizontal dipole mode.

The EM38-MK2 is a conductivity meter that uses an electromagnetic inductive technique to record the subsurface’s apparent conductivity and magnetic susceptibility. A primary magnetic field is created by the EM38’s transducer.

The Geonics EM38-4 Data Logging System (DAS70-win) consists of a tablet/laptop field com-puter, data logging program EM38-4, and associated cable to connect the computer to the Geonics EM38-4 instrument. The program EM38-4 is designed for a IBM PC compatible computer and MS Windows 11 (or 10) operating system.

GEONICS EM38-MK2. The EM38 is excellent for determining soil salinity and can cover large areas quickly without needing grounded electrodes. The EM38 provides depths of exploration of 1.5 meters and 0.75 meters in the vertical and horizontal dipole modes respectively.

The EM38-MK2 provides measurement of both the quad-phase (conductivity) and in-phase (magnetic susceptibility) components within two distinct depth ranges, all simultaneously, without any requirement for soil-to-instrument contact.