Veris Technologies MSP EC and pH (1997-2008 floppy disk drive 1.02E) - Operating Instructions - Manual (Page 48)

Veris Technologies
Pub. #OM MSP03-1
48
2. Functions Aren’t Working in Manual Mode
-follow troubleshooting flow chart below and see related procedures at end of Troubleshooting
Section.
3. Sampling mechanism locks up or mis-cycles
-press “1” to disengage, turn external controller to Manual and check prox sensor adjustment (see
Procedure #4 at end of Troubleshooting Section)
-check DGPS signal
-if status of sampler shows “Cycling” for long periods, set sampler shank to shallower position. In
hard soil, sampler shoe may not be able to penetrate to the depth needed to move plate off prox
sensor. (see Procedure #4 at end of Troubleshooting Section)
4. Wash system malfunctioning: no water being pumped
-are there at least 10 gallons of water in tank?
-are pumps running? If not, check electrical connections and 12 volt power to them
-check pressure switch on pump—wiggle wire, disconnect and reconnect; direct wire if needed
-is filter plugged?
-is ball valve open?
-disconnect quick couplers to help pumps prime
5. pH readings seem erroneous or won’t calibrate
-Use pH simulator to test External Controller and Veris instrument. Re-test with pH simulator set
to High Impedance