Veris Technologies MSP EC and pH (1997-2008 floppy disk drive 1.02E) - Operating Instructions - Manual (Page 49)

Veris Technologies
Pub. #OM MSP03-1
49
-check for moisture around BNC connectors and for proper installation and fit of the BNC cover
over BNC connections (if Veris instrument measures the pH simulator setting of 4 as
approximately 7, blow compressed air into BNC port on external control module)
-If electrode failure seems premature contact Veris Service Dept.
6. Sampling shoe plugging
-verify if shoe is plugged: wash electrodes to create a wet sample in the shoe; in manual mode
lower sampler to full depth and drive forward; if soil in the sampling trough is dry, the shoe isn’t
plugged
-to clean plugged shoe, raise implement, lower shoe manually to maximum depth, and drive
forward at high rate of speed as you lower the implement completely; if it doesn’t clear, clean
manually (put transport locks in before working under unit)
-clean cutting shoe thoroughly, especially if it has dried mud in it
-check cutting shoe and scraper for wear; replace as needed
-check scraper adjustment by manually raising and lowering sampler assembly. Does scraper
completely clean the cutting shoe face? See Field Operation section for proper adjustment
-adjust row cleaner to clear residue more completely
-adjust firming wheel down to firm soil
-lower sampling depth to engage soil with better coring properties
-remove sampler shoe flap if it severely retards soil flow
7. pH readings are repeatedly >.5 different or are slow to settle,
-check shoe for sample quality. If only a small amount of soil is present, reduce field speed to
retain adequate core. If crop residue is present, adjust cleaning disks to reduce crop residue in
sampling area.
8. pH electrodes are not being cleaned of soil adequately
-check wash system in manual mode—are both pumps operating properly?
-check alignment of wash jets
-check wash function operation while in automatic mode
-increase wash time in Controller set-up menu; this can be done either by selecting the extra
wash option, by extending the cycle time to 3 seconds—or both.
9. Hydraulic power pack
-for engine problems, refer to Honda manual
-to provide clean air intake, engine exhaust should not be in confined area
-engine running but not pumping oil: is ball valve open?
10. Too many pH points are rejected
-check electrodes and wash system for adequate cleaning
-recalibrate the electrodes
Use pH simulator to test external
controller and Veris instrument.
On/Off key (Turn pH simulator OFF
when test is completed)
Attach to each BNC port to test each
circuit
Press Select button to toggle from 4 to 7
to 10. Light above pH value will light.
View Veris instrument to confirm these
readings at each simulator setting.