Veris Technologies 2000XA Soil EC Mapping System (1997-2008 floppy disk drive 1.76G) - Operating Instructions - Manual (Page 6)

Veris Technologies
Pub. #OM 1CM02-1
6
Coulter Electrode Isolation
Grounded bolt Ohmmeter Coulter
3) Implement Test Box – To properly measure conductivity, good electrical continuity must
be present from the coulter electrode to the instrument. The Implement Test Box (Part
No. 15231) allows you to quickly check this.
Use the following method:
a) Connect the signal cable to the terminal on the test box.
b) Touch one lead of an ohmmeter to the #1 coulter blade (left hand, standing behind
the unit) and the other lead to the #1 terminal on the test box. A reading of less than
2 ohms is normal.
c) Continue to check each coulter electrode in succession, left to right.
d) If any coulter electrode exhibits no continuity or resistance higher than 2 ohms, refer
to the maintenance or trouble shooting sections for possible causes.