Troubleshooting – Hach-Lange DR 3900 User Manual User Manual

Page 134

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134

Troubleshooting

Error copying from USB memory
stick.

Error during update

Start the procedure again or contact the
manufacturer or his representative.

Error in FTP connection.

FTP error

Make sure that the instrument is
connected to the network.

Fault
Program not accessible.
Please update program data!

Barcode test not present

Update program data

Fault
Clean cuvette!

The cuvette is dirty or there are
undissolved particles in the cuvette

Clean the cuvette; allow the particles to
settle

Fault
Test program stopped!
Please check lamp
Close the lid.
Error [xx]

Test program stops when the instrument
is started

Check the lamp and replace it if
necessary.
Close lid.
Press Start Again.

Fault
Test program stopped!
Please remove the cuvette
Close the lid.

Test program stops when the instrument
is started

Remove the cuvette/sample cell from
the cell compartment.
Press OK.

Error
Selfcheck stopped.
Hardware error.
Error [x]

Electronic defect

Contact technical support and indicate
the error number

Error
Too much ambient light!
Move instrument into shade
or close the lid

The instrument sensors detects too
much ambient light.

Decrease ambient light. (Avoid direct
sunlight.)
Close lid.

No help function is available for this
program.

Shelf life exceeded!
Use chemicals?

The analysis is possibly erroneous. Use
new chemicals

No evaluation!

Error in the test database / user
database

Check programming
Contact technical support

No barcode!

No barcode found

Reinsert the cell.
If the barcode is not recognised, contact
the manufacturer or his representative.

No instrument backup present!

Check the USB memory stick.

No valid data for these parameters!

Data analysis not possible, no
measurement data

Change the selection.

No valid data found!

View Data not possible in data log

Change the selection.

No measurement data present!

Data analysis settings cannot be
configured without measurement data.

Change the selection.

Control range not reached!

Data analysis limits not reached

This is a warning notice. The control
limit set was not reached.

Control range exceeded!

Data analysis limits exceeded.

This is a warning notice. The control
limit was exceeded.

Concentration too high!

Calculated concentration is higher than
999999

Dilute sample and measure again

Over measuring range

The measured absorbance is above the
calibration range of the test

Dilute sample and measure again

Error displayed

Definition

Resolution

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