Geonics Limited EM31-SH, Руководство по эксплуатации

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EM31-SH MANUAL Page
16
2.1.3 Operating Procedure
a) Positioning the instrument with the should strap adjusted
so that the instrument rests comfortably on the hip as
shown, turn the Mode switch to the OPER position and
rotate the Range switch so that the conductivity reads in
the upper two-thirds of the full range. The conductivity
display is now reading ground conductivity directly in
mS/m and full scale reading (minus 99% of overage) is
indicated by the Range switch.
Normal Operating Position – Vertical Dipoles
b) The instrument can be operated in either of two dipole
modes – vertical or horizontal. The instrument response,
as a function of depth, varies significantly between the
two modes. It is important to recognize that the vertical
dipole mode provides twice the effective depth of
exploration as the horizontal dipole mode – 4 m and 2 m,
respectively. (A complete discussion of the vertical and
horizontal dipole modes is provided in Geonics Technical
Note TN-6).