Veris Technologies OpticMapper - Operating Instructions - Manual (Page 37)

Pub.# OM17-OpticMapper
6-3
Figure 2.3
Firmly press one lead of the ohmmeter to the #1 coulter blade edge (left hand, standing behind the
unit) and the other lead to the #1 terminal on the test box. Maintain firm pressure on the ohmmeter
lead touching the disk blade. A reading of less than 2 ohms is normal. Rotate blade ¼ of a turn
back and forth as you view the ohmmeter. Any jump in the readings above 2 ohms indicates a
problem.
Continue to check each coulter electrode in succession, left to right.
If any coulter electrode exhibits no continuity or resistance higher than 2 ohms, refer to Procedure
#3 Diagnosing EC Signal Problems.
Connect to coulter
blade
Ohmmeter
Connect one lead to Signal Test
Box terminal (corresponding to
each coulter)
Figure 2.4
Signal extension cable
(from implement)