Veris Technologies Quad 1000 Soil EC Mapping System - Operating Instructions - Manual (Page 24)

OM17-Quad1000
6-3
Figure 2.2
Firmly press one lead of the ohmmeter to the #1 disk blade edge (left hand, standing behind the
unit) and the other lead to the terminal marked #1on the Quad 1000 test box decal. 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. (Figure 2.3)
Figure 2.3 Testing signal continuity on Quad 1000 #1 disk.
Continue to check each disk electrode in succession, left to right.
If any disk electrode exhibits no continuity or resistance higher than 2 ohms, refer to Procedure #3
Diagnosing EC Signal Problems.
Connect other lead
to disk blade Ohmmeter
Connect one lead to Signal Test
Box terminal corresponding to
disk blade
Signal extension cable
(from implement)