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10.2
Protective Housing
An optional protective housing (see Figure 10) is designed to give the instrument protection from
dust, mechanical shocks, as well as to improve instrument stability (drift) as a result of sudden
change in environmental temperature. The housing is especially useful when the instrument is in
a cart operating mode. The openings on the housing cover are to allow for connection to the
external battery and to the recording device.
10.3
Extender Arm
A collapsible extender arm (see Figure 11) can be used to conveniently carry the instrument over
the survey area, either in vertical or horizontal dipole mode. The switch on the top of the hand is
connected, via an interconnecting cable, in parallel with the marker switch on the instrument. It
can be used, during digital data recording, to either initiate recording or make markers for
particular stations as described in section 2.7.
Summary of Contents for EM38-MK2
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