Hach DR 5000 用户手册

The measured absorbance exceeds 3.5

Dilute the sample and repeat the 
measurement

Calculated concentration is higher than 
999999

Dilute the sample and repeat the 
measurement

Deviation to the stored data

Data updating

Barcode cuvette test missing

Data updating

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

Clean the cuvette; allow the particles to 
settle

The lamp output is too low

Check the lamp and replace it if 
necessary

Self Check Test stops while starting the 
instrument 

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

Self Check Test stops while starting the 
instrument 

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

Kink in tube
Peristaltic pump failure

Check the tube connections

Electronic defect

Contact the manufacturer or a sales 
representative and indicate the error 
number

The calculated result is negative

Check the concentration of the sample

Error in the test database / user 
database

Check the programming
Contact the manufacturer or a sales 
representative

The measured absorbance is above the 
calibration range of the test

Dilute the sample and repeat the 
measurement

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