Hach Portable Spectrophotometer DR 2800 - Manual (Page 117)

117
Section 8 Troubleshooting
Problem/Display screen Likely Cause Action
Attention!
Please insert the light shield. Measurements with barcode cuvettes
generally require the light shield. Insert the light shield.
Press OK.
Absorbance > 3.5! The measured absorbance exceeds 3.5
Dilute the sample and repeat the
measurement
Concentration too high!
Calculated concentration is higher than
999999 Dilute the sample and repeat the
measurement
Error
Barcode controlnumber?
Please update program data!
Deviation to the stored data Data updating
Error
Program not available.
Please update program data!
Barcode cuvette test missing
Data updating
Error
Clean Cuvette The cuvette is soiled or there are
undissolved particles in the cuvette Clean the cuvette; allow the particles to
settle
Error
Selfcheck stopped.
Please check the lamp.
Please close the lid.
Error [xx]
Self Check Test stops while starting the
instrument
Check the lamp and replace it if
necessary.
Close the lid.
Press Start Again.
Error
Selfcheck stopped.
Please remove the cuvette
Self Check Test stops while starting the
instrument Remove the cuvette.
Press OK.
Error
Selfcheck stopped.
Hardware error.
Error [x]
Electronic defect
Contact the manufacturer or a sales
representative and indicate the error
number
It’s recommended to execute a
Full System Check
Please remove cuvette.
Please close the lid.
The instrument needs a new
Full System Check.
Remove cuvette.
Close the lid.
Press Start.
If the Full System Check
fails, please contact the
manufacturer or distributor.
Negative result! The calculated result is negative Check the concentration of the sample
No evaluation!
Error in the test database / user
database
Check the programming
Contact the manufacturer or a sales
representative
Over measuring range
The measured absorbance is above the
calibration range of the test Dilute the sample and repeat the
measurement
Please check the lamp. The lamp output is too low
Check the lamp and replace it if
necessary
Too much ambient light!
Move device into shade
or close the lid!
The instrument sensors detects to much
ambient light.
Reduce ambient light. (Avoid direct sun
light.)
Close the lid.
Under measuring range
The measured absorbance is below the
calibration range of the test
If possible, select a test with a lower
measurement range or use a cuvette
with a longer path length
Unstable lighting conditions!
Fluctuating light conditions during the
measurement Close the lid or place the Protective
Cover on the cuvette compartment (2)