Veris Technologies VIS_NIR Spectrophotometer - Operating Instructions - Manual (Page 54)

Pub# OM17-NIR Shank
5-1
Section 5
Troubleshooting
Troubleshooting EC module
Map doesn’t match known or expected soil types --
1. Check electrical continuity using Implement Test Box as discussed above.
2. Check isolation of coulter electrodes
3. Remove any buildup of moist soil on toolbar
4. Check blade bolt tightness and corrosion
5. Map additional fields to see if similar condition results
6. Contact Veris Service Department
EC values change with field speed, or when unit stops moving
(If both shallow and deep EC array values change, focus on coulters 2 & 5; if shallow
array coulters 3 & 4; if deep array coulters 1 & 6)
1. Check electrical continuity carefully
—rotating coulter blade as measurement is
made
2. Remove coulter hub cap and inspect spring-loaded commutator and coulter spindle
for wear; replace commutator or grind spindle end smooth if necessary
No conductivity readings on instrument display--
1. No continuity on coulter electrode # 2 or # 5.
2. Check for excessive corrosion on coulter terminal.
3. Check for broken signal wire by disconnecting wire from coulter electrode and
checking continuity from end of wire to corresponding terminal on test box. Replace
coulter wiring (PN 15601) or signal cable (PN 13602) as required.
4. Check for collapsed spring-loaded commutator on # 2 or # 5.
Data missing from display reading
–
1. Unit must be in contact with soil to record data points; lower unit or add weights to
ensure consistent 1”-2” (2.5-5 cm) penetration into soil
2. Check GPS and DGPS signal; Veris instrument is programmed to eliminate all non-
DGPS geo-referenced points.
3. Shut power off and restart
4. Check electrical continuity
5. Check input voltage, 12 v minimum required
Excessive number of negative readings in data --
1. Increase depth of penetration.
2. Slow down in extremely rough fields.
3. Alter transect pattern to avoid areas of heavy residue (combine swath)