Veris-technologies MSP EC and pH (1997-2008 floppy disk drive 1.02E) Manuel d'utilisateur télécharger pdf (Page 38)

Veris Technologies

Pub. #OM MSP03-1

The display is showing the pH values from the pH electrodes, conductivity of the top 1’ (30 cm) and

top 3’ (90 cm) of the soil, and whether you have GPS or DGPS (differentially corrected) signal. The

system does not record any conductivity point that isn’t DGPS geo-referenced. At any time during the

mapping process, you can press the 4 key to stop the file. If you create more than one file from the

same field, you can bring the files into a spreadsheet program and combine them prior to mapping.

From this screen, pressing the 1 key as you drive forward will initiate the automatic sampling process.

The software requires movement indicated by the GPS receiver in order to cycle. Speed must

be detected within 5 seconds after pressing 1 or the system will disengage.

If TAP or DI were selected as the wash water type above, the controller will go through a wash

baseline process after engage is pressed for the first time. The status text will change to the

following:

After the pH readings settle (or if RO was selected as the wash water type), the unit will continue

cycling and display the following screen:

“Cycling” means the sampler assembly is in the process of locating its position, washing, and

beginning to lower for soil sampling. After a core has been collected and is being held against the

electrodes, the status text will change to the following:

The pH readings on the display show what each electrode is reading at every second. The sampler

will hold the soil against the electrodes and continue to record pH until the readings settle. The

minimum recording time is 7 seconds; the maximum time is determined in the pH settings menu. The

pH values that are recorded are the final values at the end of the logging duration. (last reading on

the display before the “Cycling” status appears). The final pH value is logged along with the DGPS

position where the sample was collected.

If the electrodes take longer than 10 seconds to settle, a warning will appear by the readings:

and again at 20 seconds:

DGPS indicator:

NONE, _GPS,

DGPS

Shallow and

Deep EC

readings

pH readings from each

electrode if equipped

with pH module

Status of pH

sampling

mechanism

Speed in

MPH

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Veris-technologies MSP EC and pH (1997-2008 floppy disk drive 1.02E) Manuel d'utilisateur Page 38