ETS-Lindgren HI-3627 ELF Magnetic Field Meter - Manual (Page 14)

Page -- 6 HI-3627 Manual
Figure 3-1
The probe is detachable and consists of a sensing head
containing three coils oriented to pick up the X, Y, and Z
components of the field. The probe plugs into a multi-pin
connector at the top end of the enclosure.
There is also a 1/4 inch stereo phone jack on the end of the
case. This is used to connect the battery charger and also
provide a recorder output signal. See figure 3-1.
Two switches control the operation of the HI-3627. The rotary
selector switch turns on the instrument and selects one of five