Section 8 Troubleshooting - Hach Portable Spectrophotometer DR 2800 User Manual

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