LaMotte SMART 3 Electronic Soil Lab - Manual (Page 50)

50 SMART3 Soil 1.11
TROUBLESHOOTING GUIDE 
PROBLEM REASON SOLUTION
Flashing Low battery. Readings
are reliable.
Charge battery or use
USB wall/computer
adapter.
“Low Battery” Battery voltage is very
low. Readings are not
reliable.
Charge battery or use
USB wall/computer
adapter.
“Shut Down Low
Batt” Shut Down
Battery is too low to
operate the unit.
Charge battery or use
USB wall/computer
adapter.
“Overrange” Sample is outside of
acceptable range.
Dilute sample and test
again.
Unusually large
negative or
positive readings
when performing
calibration
Incorrect standards
used to calibrate
meter.
Use fresh 0.0 standard
in clean tube. Reset
meter to factory default
settings. Recalibrate
meter.