LaMotte SMART 2 Electronic Soil Lab - Manual (Page 42)

TROUBLESHOOTING GUIDE
n
ERROR MESSAGES
n OVER RANGE
If the message OVERRANGE is displayed when scanning a sample, the sample
may be over range or under range. If the sample is over range the sample should
be diluted and tested again (see Sample Dilution Techniques and Volumetric
Measurements, p. 11).
If OVERRANGE is displayed, press
Q/ENTER to
continue testing on diluted samples.
015 Chlorine
OVERRANGE
* Continue
n BLANK
If the message Blank? is displayed when scanning a sample, the sample had a
lower reading than the blank. Review test procedure to determine whether a
reagent blank is required.Visually check for color development in reacted
sample. Repeat test if necessary.
If Blank? is displayed, press the
Q/ENTER button
to continue. Check to see if the meter was blanked
properly.
002 Aluminum
Blank?
* Continue
n
CALIBRATION
As with all pre-calibrated meters, it is highly recommended, even if not
required by regulations, that the user periodically verify the performance of the
meter by running standards with a predetermined concentration. Results
outside of specification are an indication that the meter needs to be adjusted.
This can be done following the user calibration described on page 34. If the
user calibration fails to properly adjust the meter then the meter should be
returned to LaMotte Company for recalibration. (See page 5).
42 SMART2 SOIL MANUAL 1.07