Veris Technologies 3150 Soil EC Mapping System - Trouble-shooting - Manual (Page 11)

individual coulter electrode, and the other to a grounded fastener on the frame. If
the coulter electrode is properly isolated, no reading will be obtained. Make sure
that all electrode coulter clamp bolts are properly tightened to prevent lateral
movement of the coulter electrode.
Figures 3.10 a and b
4. Wet soil on the toolbar could be a pathway for the EC signal to short. Test coulter-
to-coulter and coulter-to-frame isolation by checking resistance between coulter-
electrodes. Any continuity from one coulter to another is not acceptable. Remove
buildup of wet soil, especially if is bridges across insulation slides. It may be
necessary to remove coulter mounting brackets and clean toolbar, if problem
persists.
Figure 3.11 Wet soil buildup on toolbar may
cause EC signal to short.
no
continuity
grounded
bolt
coulter
terminal