LaMotte 2020i Turbidimeter - Manual (Page 30)

TROUBLESHOOTING GUIDE
Error Messages
Err1 Very Low battery. Replace battery or switch to AC power. Press back
arrow (
) to back out. Scan sample again. Replace battery as soon
as possible.
Err2 The meter can not be calibrated outside of the allowable range of
the displayed reading. Confirm that standard was made correctly.
The displayed reading can only be adjusted to ±50% of the factory
calibration.
Err3 Meter can not be calibrated with a zero sample. Calibrate the meter
with a sample other than zero.
Err4 Processing error due to motion of suspended particles or submicron
air bubbles or opening/closing lid during readings. Scan sample
again until reading is obtained.
Err5 No blank reading. The meter has never been blanked for this test
factor. Blank meter.
Err6 Internal mathematical error. Re-blank the meter and rescan the
sample.
Err7 Configuration error. Call LaMotte Tech Service. Meter may have to
be returned for repairs.
low battery Low battery. Change battery.
Troubleshooting
PROBLEM REASON SOLUTION
Lost in meter menus Reset to factory default
settings. (see page 8) Turn meter off. Hold down
*I
OK and press ON.
Release both buttons. Press
*I
OK to select the default
settings. Meter will turn off
and the factory settings will
be restored.
Usually large negative
or positive readings
when performing
calibration. Incorrect standards used to
calibrate meter. Use fresh 0.0 standard in
clean, labeled, vial. Reset
meter to factory default
settings. See procedure
above. Recalibrate meter.
Erroneous readings Measurement was taken
with lid open. Close lid. Read again.
>
on display Over range. The sample is outside of the
acceptable range. Dilute
sample and test again.
30 TROUBLESHOOTING